WHAT MOVES YOUR WORLD
ELECTROHYDROSTATIC
PUMP UNIT
MODULAR ELECTROHYDROSTATIC PUMP UNIT
FOR INDUSTRIAL APPLICATIONS
Rev. J, July 2022
2
INTRODUCTION Moog Electrohydrostatic Pump Unit
Rev. J, July 2022
Whenever the highest levels of motion control
performance and design flexibility are required, you’ll find
Moog expertise at work. Through collaboration, creativity
and world-class technological solutions, we help you
overcome your toughest engineering obstacles, enhance
your machine’s performance, and help take your thinking
further than you ever thought possible.
This catalog is for users with technical knowledge. To ensure all necessary characteristics for function and safety of the system, the user has to check the suitability of the products
described herein. The products described in this document are subject to change without notice. In case of doubt, please contact Moog.
Moog is a registered trademark of Moog Inc. and its subsidiaries. All trademarks as indicated herein are the property of Moog Inc. and its subsidiaries. For the full disclaimer refer to
www.moog.com/literature/disclaimers.
For the most current information, visit www.moog.com/industrial or contact your local Moog office.
INTRODUCTION ..........................................................................2
Product Overview ..............................................................3
TECHNICAL DATA .....................................................................5
Size 19, Natural Cooling ................................................4
Size 19, Liquid Cooling ................................................... 9
Size 32, Natural Cooling ................................................13
Size 32, Liquid Cooling ................................................... 17
Size 80, Natural Cooling ................................................21
Size 80, Liquid Cooling ................................................... 25
Size 140, Natural Cooling ..............................................29
Size 140, Liquid Cooling ................................................33
Size 250, Natural Cooling ..............................................37
Size 250, Liquid Cooling ................................................41
Electrical Interfaces .........................................................45
Signal Resolver Connector ............................................46
ORDERING INFORMATION ....................................................47
Motor Power Cables .........................................................47
Resolver Feedback Cable ...............................................48
Orientation of Electrical Connectors and Liquid
Cooling Ports .......................................................................50
Ordering Code .....................................................................51
CONTACT ......................................................................................52
3Rev. J, July 2022
INTRODUCTION Moog Electrohydrostatic Pump Unit
Moog Electrohydrostatic Pump Unit and Electrohydrostatic Actuation System
PRODUCT OVERVIEW
Moog Electrohydrostatic Pump Units (EPU) are emerging
as a viable option for industrial machine builders as the
design combines the best of both electro-mechanical
and electro-hydraulic technologies. The EPU is a highly
integrated, compact alternative to traditional hydraulic
solutions.
This catalog describes the Electrohydrostatic Pump
Unit used in such electro-hydrostatic actuation systems,
like the Moog EAS. The EPU is able to operate in 2 or
4 quadrant operations and has a mechanical interface,
which allows to connect it directly to hydraulic cylinders
or manifolds. The radial piston pump is available in
two versions: Fixed or Dual Displacement. As a fixed
displacement pump, the pump permanently delivers a
certain volume per revolution. The dual displacement pump
version can be switched between two fixed volumes (V
max
and V
min
adjustable) during operation, see table in section
“Ordering Code”.
The Moog EAS is a modular actuation system comprised of
a Electrohydrostatic Pump Unit (EPU), Servo Drive (MSD)
and manifold. Adding a cylinder as part of the system is
also a common option.
4Rev. J, July 2022
INTRODUCTION Moog Electrohydrostatic Pump Unit
Performance Specifications
EPU series 019 032 080 140 250
Maximum flow 85 l/min
(22.5 gpm)
118 l/min
(31.2 gpm)
216 l/min
(57.1 gpm)
322 l/min
(85.1 gpm)
450 l/min
(118.9 gpm)
Maximum pressure ports A and B 350 bar (5,076 psi)
Maximum housing pressure
1)
10 bar (145 psi)
Pump version Radial piston pump, constant, dual or variable displacement
Motor version Brushless servo motor: natural, fan or liquid cooled
Temperature range
Ambient -15 to +60 °C (5 to 140 °F)
Fluid -15 to +80 °C (5 to 176 °F)
Seal material FKM
Pilot pressure supply
2)
External
Operating fluid Mineral oil according to DIN 51524 , HFD, others upon request
Viscosity
3)
Allowable viscosity operational range 12 to 100 mm
2
/s (12 to 100 cSt)
Recommended hydraulic fluid viscosity class VG 46 to VG 100 according to ISO 3448 ;
maximum viscosity 500 mm
2
/s during start-up with electric motor at 1,800 r/min
System filtration • NAS 1638, class 9
• ISO 4406, class 20/18/15; obtained with filter fineness of β20 = 75
Installation position Any
Installation note
To avoid pump damages the housing pressure p
L
must not exceed the pressure in the
low pressure line (p
A
or p
B
) by more than 1 bar. Design the drain line with lowest possible
pressure losses. Maximal pump speed is preload pressure dependent on suction line, see
diagram below.
The fluid temperature in the tank shall not exceed the temperature of the pump by more
than +25 °C (+77 °F). If this should occur, the pump shall be jog started for intervals of
approximately 1 to 2 seconds until pump casing has heated up.
3)
1)
Maximum housing pressure p
Lmax
, p
Sp
= f(n), see diagram below
2)
For option N1 (dual displacement) only
3)
For more information see EPU user manual
12
(172)
10
(145)
8
(116)
6
(87)
4
(58)
2
(29)
0
Housing pressure [bar (psi) abs]
4,0003,0002,0001,000
19 cm
3
32 cm
3
80 cm
3
140 cm
3
250 cm
3
Speed [r/min]
2
(29)
3,5
(51)
3
(44)
2,5
(36)
4
(58)
1,5
(22)
Preload pressure [bar (psi) abs]
4,0003,0002,0001,000
19 cm
3
32 cm
3
80 cm
3
140 cm
3
250 cm
3
Speed [r/min]
1
(15)
Moog Electrohydrostatic Pump Unit and Electrohydrostatic Actuation System
PRODUCT OVERVIEW
5Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 19
Characteristics Table
Performance class Small Medium High
S EPU 019 A D xx S0 C M0 C H0 C
Pump
Displacement V
max
19 cm
3
/rev (1.16 in
3
/rev)
Maximum pump speed
at 3.6 bar (abs)
n
max
4,500 r/min
Maximum pump acceleration
ṅ
max
112,500 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
85 l/min (22.5 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
2 - 3 l/min (0.5 - 0.8 gpm)
Motor
Continuous stall torque
3)
M
0
40 Nm (354 lbf in) 93 Nm (823 lbf in) 137 Nm (1,213 lbf in)
Rated torque
3)
M
n
22 Nm (195 lbf in) 45 Nm (398 lbf in) 52 Nm (460 lbf in)
Maximum torque M
max
141 Nm (1,248 lbf in)
391 Nm (3,461 lbf in)
595 Nm (5,266 lbf in)
Rated speed n
n
3,000 rpm 2,500 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
23.08 A
rms
52.61 A
rms
69.17 A
rms
Maximum current I
max
101 A
rms
250 A
rms
340.5 A
rms
Torque constant k
t
1.72 Nm/A
rms
(15.2 lbf in/A
rms
)
1.77 Nm/A
rms
(15.7 lbf in/A
rms
)
1.98 Nm/A
rms
(17.5 lbf in/A
rms
)
Voltage constant k
e
103.67 V
rms
/1,000
rpm
106.63 V
rms
/1,000
rpm
119.96 V
rms
/1,000
rpm
Thermal time constant t
th
3,882 s 4,200 s 5,200 s
Winding resistance at 25 °C R
tt
0.351 Ω 0.096 Ω 0.074 Ω
Winding inductance L
tt
4.254 mH 1.719 mH 1.433 mH
Power connector Size 1 rotatable Size 1.5 rotatable
Feedback connector Signal resolver connector rotatable
Thermal sensor NTC 220 kOhm, Pt1000
EPU unit
Inertia J 38 kg cm
2
(336 10
-4
lbf in s
2
)
121.52 kg cm
2
(1,076 10
-4
lbf in s
2
)
172.37 kg cm
2
(1,526 10
-4
lbf in s
2
)
Weight m 50.1 kg (110.3 lb) 82.7 kg (182.2 lb) 105.4 kg (232.4 lb)
Tightening torque 8x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-024 size 4 G392-032 size 4 G392-045 size 5
Natural Cooling, S EPU 019 A D xx xx C
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with ambient temperatures up to +40 °C (+104 °F). Winding temperature measure up to +110 °C (+230 °F) over ambient
4) Optional via Sp port (flushing port)
6Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 19
Natural Cooling, S EPU 019 A D xx xx C
3
5
1
2
4
0
0
9.4
(2.5)
500
28.3
(7.5)
1,500
47.2
(12.5)
2,500
66.1
(17.5)
3,500
85
(22.5)
4,500
0
165
(2,393)
330
(4,786)
82,5
(1,197)
247,5
(3,590)
0
50
(443)
100
(885)
150
(1,328)
200
(1,770)
25
(221)
75
(664)
125
(1,106)
175
(1,549)
Pressure difference @ 19 cm
3
[bar (psi)]
Torque [Nm (in ft)]
Speed [r/min]
Flow @ 19 cm
3
[l/min (gpm)]
3
1
4
2
5
0
0
9.4
(2.5)
500
28.3
(7.5)
1,500
47.2
(12.5)
2,500
66.1
(17.5)
3,500
85
(22.5)
4,500
0
165
(2,393)
330
(4,786)
82,5
(1,197)
247,5
(3,590)
0
50
(443)
100
(885)
150
(1,328)
200
(1,770)
25
(221)
75
(664)
125
(1,106)
175
(1,549)
Pressure difference @ 19 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Speed [r/min]
Flow @ 19 cm
3
[l/min (gpm)]
3
1
4
2
5
0
0
9.4
(2.5)
500
28.3
(7.5)
1,500
47.2
(12.5)
2,500
66.1
(17.5)
3,500
85
(22.5)
4,500
0
165
(2,393)
330
(4,786)
82,5
(1,197)
247,5
(3,590)
0
50
(443)
100
(885)
150
(1,328)
200
(1,770)
25
(221)
75
(664)
125
(1,106)
175
(1,549)
Torque [Nm (in ft)]
Pressure difference @ 19 cm
3
[bar (psi)]
Speed [r/min]
Flow @ 19 cm
3
[l/min (gpm)]
Motor Performance Curves
S0 C
H0 C
M0 C
1
2
3
4
5
Continuous torque at 110 K temperature difference
over ambient, max. winding temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
7Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 19
Mounting Pattern
Pump Front View
M
B
X
max
X
min
A
Sp
L
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 14 (0.55 in) 20 (0.79 in)
Sp Flushing port 10 (145 psi) 5 (0.20 in) 15 (0.60 in)
L Leakage port 10 (145 psi) 8 (0.31 in) 9 (0.35 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.98 in) deep.
Recommended: Use 8 hexagon head cap
screws M12 (property class 12.9, minimum
length 45 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
Note: Dimensions mm (inch)
Natural Cooling, S EPU 019 A D xx xx C
1
2
X
MAX
X
MIN
A
B
L
S
p
3
93
(3.661)
47.5
(1.870)
47.5
(1.870)
93
(3.661)
4 (Ø0.157)
68
68
(2.677)
(2.677)
10
(0.394)
(0.394)
10
115
(4.528)
115
(4.528)
63
(2.480)
63
(2.480)
102
(4.016)
102
(4.016)
81.5
(3.209)
85
(3.346)
46
(
1.811)
46
(1.811)
107.5
(4.232)
107.5
(4.232)
19.5
(0.768)
8 x Ø 13.5 (0.531)
212
(8.346)
max. 351
(13.820)
229
(9.016)
63
(2.480)
63
(2.480)
47.5
(1.870)
47.5
(1.870)
93
(3.661)
93
(3.661)
Ø6 - 14.5 deep
(Ø0.236 - 0.571 deep)
LB
102
(4.016)
102
(4.016)
X
max
X
min
A
Sp
8Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 19
606
(23.858)
729
(28.701)
23
(0.906)
97
(3.819)
26
(1.024)
74
(2.913)
44.4
(1.748)
140
(5.511)
98
(3.858)
97
(3.819)
414
(16.299)
26
(1.024)
537
(21.142)
44.2
(1.740)
40.4
(1.591)
23
(0.906)
473
(18.622)
97
(3.819)
26
(1.024)
596
(23.465)
(2.913)
44.4
(1.748)
23
(0.906)
M0 C
H0 C
Installation Drawings
S0 C
Note: Dimensions mm (inch)
Natural Cooling, S EPU 019 A D xx xx C
9Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 19
Liquid Cooling, S EPU 019 A D xx xx W
Characteristics Table
Performance class Medium High
S EPU 019 A D xx M0 W H0 W
Pump
Displacement V
max
19 cm
3
/rev (1.16 in
3
/rev)
Maximum pump speed
at 3.6 bar (abs.)
n
max
4,500 r/min
Maximum pump acceleration
ṅ
max
112,500 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
85 l/min (22.5 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
2 - 3 l/min (0.5 - 0.8 gpm)
Motor
Continuous stall torque
3)
M
0
62 Nm (549 lbf in) 91 Nm (805 lbf in)
Rated torque
3)
M
n
58 Nm (513 lbf in) 85 Nm (752 lbf in)
Maximum torque M
max
94 Nm (832 lbf in) 140 Nm (1,239 lbf in)
Rated speed n
n
3,000 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
48.45 A
rms
54.22 A
rms
Maximum current I
max
88 A
rms
100 A
rms
Torque constant k
t
1.27 Nm/A
rms
(11.2 lbf in/A
rms
) 1.68 Nm/A
rms
(14.9 lbf in/A
rms
)
Voltage constant k
e
78.49 V
rms
/1,000
rpm
103.67 V
rms
/1,000
rpm
Thermal time constant t
th
460 s 525 s
Winding resistance at 25 °C R
tt
0.319 Ω 0.345 Ω
Winding inductance L
tt
3.551 mH 4.047 mH
Power connector Size 1.5 rotatable
Feedback connector Signal resolver connector rotatable
Thermal sensor NTC 220 kOhm, Pt1000
Cooling water flow rate Q
W
3-5 l/min (0.8 - 1.3 gpm)
EPU unit
Inertia J 31.7 kg cm
2
(281 10
-4
lbf in s
2
) 37.9 kg cm
2
(335 10
-4
lbf in s
2
)
Weight m 47.5 kg (104.7 lb) 56.3 kg (124.1 lb)
Tightening torque 8x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-045 size 5 G392-060 size 5
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with water temperatures from +25°C(+77°F) up to +40°C (+104°F). Winding temperature measure up to +110°C (+230 °F)
over water
4) Optional via Sp port (flushing port)
10Rev. J, July 2022
Moog Electrohydrostatic Pump Unit
1
2
3
Continuous torque at 110 K temperature difference over
water, max. winding temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into
account
Pressure difference ∆p = p
A
– p
B
Motor performance determined with respective max.
cooling water flow rate, see characteristic table
TECHNICAL DATA
Motor Performance Curves
M0 W H0 W
SIzE 19
Liquid Cooling, S EPU 019 A D xx xx W
3
1
2
0 500 1,500 2,500 3,500 4,500
140
(1,239)
120
(1,062)
100
(885)
80
(708)
60
(531)
40
(354)
20
(177)
0
0 9.4
(2.5)
28.3
(7.5)
47.2
(12.5)
66.1
(17.5)
85
(22.5)
330
(4,786)
330
(4,786)
264
(3,829)
198
(2,872)
132
(1,914)
66
(957)
0
Speed [r/min]
Pressure difference @ 19 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Flow @ 19 cm
3
[l/min (gpm)]
3
1
2
0 500 1,500 2,500 3,500 4,500
140
(1,239)
120
(1,062)
100
(885)
80
(708)
60
(531)
40
(354)
20
(177)
0
0 9.4
(2.5)
28.3
(7.5)
47.2
(12.5)
66.1
(17.5)
85
(22.5)
330
(4,786)
330
(4,786)
264
(3,829)
198
(2,872)
132
(1,914)
66
(957)
0
Speed [r/min]
Pressure difference @ 19 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Flow @ 19 cm
3
[l/min (gpm)]
11Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 19
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended: Use 8 hexagon head cap
screws M12 (property class 12.9, minimum
length 45 mm (1.78 in)) according to ISO 462.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in)
Note: Dimensions mm (inch)
M
B
X
max
X
min
A
Sp
L
Mounting Pattern
Pump Front View
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A , B Operating ports 350 (5,076 psi) 14 (0.55 in) 20 (0.79 in)
Sp Flushing port 10 (145 psi) 5 (0.20 in) 15 (0.60 in)
L Leakage port 10 (145 psi) 8 (0.31 in) 9 (0.35 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
Liquid Cooling, S EPU 019 A D xx xx W
1
2
X
MAX
X
MIN
A
B
L
S
p
3
93
(3.661)
47.5
(1.870)
47.5
(1.870)
93
(3.661)
4 (Ø0.157)
68
68
(2.677)
(2.677)
10
(0.394)
(0.394)
10
115
(4.528)
115
(4.528)
63
(2.480)
63
(2.480)
102
(4.016)
102
(4.016)
81.5
(3.209)
85
(3.346)
46
(
1.811)
46
(1.811)
107.5
(4.232)
107.5
(4.232)
19.5
(0.768)
8 x Ø 13.5 (0.531)
212
(8.346)
max. 351
(13.820)
229
(9.016)
63
(2.480)
63
(2.480)
47.5
(1.870)
47.5
(1.870)
93
(3.661)
93
(3.661)
Ø6 - 14.5 deep
(Ø0.236 - 0.571 deep)
LB
102
(4.016)
102
(4.016)
X
max
X
min
A
Sp
12Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 19
1
527
(20.748)
404
(15.906)
23
(0.906)
74
(2.913)
38
(1.496)
97
(3.819)
122
(4.803)
160
(6.299)
26
(1.024)
1
74
(2.913)
38
(1.496)
97
(3.819)
122
(4.803)
160
(6.299)
26
(1.024)
447
(17.598)
324
(12.756)
23
(0.906)
HO W
Installation Drawings
MO W
1) Cooler outlet G3/8“ (thread depth max. 7 mm)
Note: Dimensions mm (inch)
Liquid Cooling, S EPU 019 A D xx xx W
13Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Characteristics Table
Performance class Small Medium
S EPU 032 A D xx S0 C M0 C
Pump
Displacement V
max
32 cm
3
/rev (1.95 in
3
/rev)
Maximum pump speed
at 2.7 bar (abs.)
n
max
3,700 r/min
Maximum pump acceleration
ṅ
max
80,400 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
118 l/min (31.2 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
3 - 4 l/min (0.8 - 1.1 gpm)
Motor
Continuous stall torque
3)
M
0
93 Nm (823 lbf in) 137 Nm (1,213 lbf in)
Rated torque
3)
M
n
45 Nm (398 lbf in) 52 Nm (460 lbf in)
Maximum torque M
max
391 Nm (3,461 lbf in) 595 Nm (5,266 lbf in)
Rated speed n
n
2,500 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
52.61 A
rms
69,17 A
rms
Maximum current I
max
250 A
rms
340.5 A
rms
Torque constant k
t
1.77 Nm/A
rms
(15.7 lbf in/A
rms
) 1.98 Nm/A
rms
(17.5 lbf in/A
rms
)
Voltage constant k
e
106.63 V
rms
/1,000
rpm
119.96 V
rms
/1,000
rpm
Thermal time constant t
th
4,200 s 5,200 s
Winding resistance at 25 °C R
tt
0.096 Ω 0.074 Ω
Winding inductance L
tt
1.719 mH 1.433 mH
Power connector Size 1.5 rotatable
Feedback connector Signal resolver connector rotatable
Thermal sensor NTC 220 kOhm, Pt1000
EPU unit
Inertia J
164.8 kg cm
2
(1,459 10
-4
lbf in s
2
) 215.7 kg cm
2
(1,909 10
-4
lbf in s
2
)
Weight m 100.3 kg (221.0 lb) 123 kg (271.2 lb)
Tightening torque 8x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-045 size 5 G392-045 size 5
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with ambient temperatures up to +40 °C (+104 °F). Winding temperature measure up to +110 °C (+230 °F) over ambient
4) Optional via Sp port (flushing port)
SIzE 32
Natural Cooling, S EPU 032 A D xx xx C
14Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
3
1
4
2
5
0 500 1,500 2,500 3,500
400
(3,540)
350
(3,098)
300
(2,655)
250
(2,213)
200
(1,770)
150
(1,328)
100
(885)
50
(443)
0
016
(4.2)
48
(12.7)
80
(21.1)
112
(29.6)
294
(4,264)
196
(2,843)
98
(1,421)
0
Speed [r/min]
Pressure difference @ 32 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Flow @ 32 cm
3
[l/min (gpm)]
1
4
5
2
3
0 1,500500 2,500 3,500
400
(3,540)
350
(3,098)
300
(2,655)
250
(2,213)
200
(1,770)
150
(1,328)
100
(885)
50
(443)
0
294
(4,264)
196
(2,843)
98
(1,421)
0
016
(4.2)
48
(12.7)
80
(21.1)
112
(29.6)
Speed [r/min]
Pressure difference @ 32 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Flow @ 32 cm
3
[l/min (gpm)]
Motor Performance Curves
S0 C M0 C
1
2
3
4
5
Continuous torque at 110 K temperature difference
over ambient, max. winding temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
SIzE 32
Natural Cooling, S EPU 032 A D xx xx C
15Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Mounting Pattern
Pump Front View
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 20 (0.79 in) 25 (0.98 in)
Sp Flushing port 10 (145 psi) 7 (0.28 in) 15 (0.60 in)
L Leakage port 10 (145 psi) 11 (0.43 in) 11.5 (0.45 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.91 in) deep.
Recommended: Use 8 hexagon head cap
screws M12 (property class 12.9, minimum
length 45 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in)
Note: Dimensions mm (inch)
M
B
X
max
X
min
A
Sp
L
A
X
max
Sp
X
min
LB
Ø6 - 14.5 deep
(Ø0.236 - 0.571 deep)
253
(9.961)
max. 392
(15.435)
8 x Ø 13.5 (0.531)
55
(2.165)
55
(2.165)
113.5
(4.469)
113.5
(4.469)
73.5
(2.894)
73.5
(2.894)
123.5
(4.862)
123.5
(4.862)
273
(10.748)
S
p
L
B
X
MIN
X
MAX
3
12
55
(2.165)
55
(2.165)
113.5
(4.469)
113.5
(4.469)
73.5
(2.894)
73.5
(2.894)
123.5
(4.862)
123.5
(4.862)
137.5
(5.413)
137.5
(5.413)
127.5
(5.020)
127.5
(5.020)
26.5
(1.043)
10
(0.394)
(0.394)
10
85
(3.346)
85
(3.346)
107
(4.213)
103
(4.055)
68
(2.677)
68
(2.677)
SIzE 32
Natural Cooling, S EPU 032 A D xx xx C
16Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
M0 C
Installation Drawings
S0 C
606
(23.858)
754
(29.685)
190
(7.480)
137
(5.394)
123
(4.843)
25
(0.984)
44.5
(1.752)
74
(2.913)
23
(0.906)
190
(7.480)
137
(5.394)
123
(4.843)
473
(18.622)
25
(0.984)
621
(24.448)
44.5
(1.752)
74
(2.913)
23
(0.906)
Note: Dimensions mm (inch)
SIzE 32
Natural Cooling, S EPU 032 A D xx xx C
17Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Characteristics Table
Performance class Small Medium High
S EPU 032 A D xx S0 W M0 W H0 W
Pump
Displacement V
max
32 cm
3
/rev (1.95 in
3
/rev)
Maximum pump speed
at 2.7 bar (abs.)
n
max
3,700 r/min
Maximum pump acceleration
ṅ
max
80,400 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
118 l/min (31.2 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
3 - 4 l/min (0.8 - 1.1 gpm)
Motor
Continuous stall torque
3)
M
0
62 Nm (549 lbf in) 91 Nm (805 lbf in) 151 Nm (1,336 lbf in)
Rated torque
3)
M
n
58 Nm (513 lbf in) 85 Nm (752 lbf in) 128 Nm (1,133 lbf in)
Maximum torque M
max
94 Nm (832 lbf in)
140 Nm (1,239 lbf in)
391 Nm (3,461 lbf in)
Rated speed n
n
3,000 rpm 2,500 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
48.45 A
rms
54.22 A
rms
85.95 A
rms
Maximum current I
max
88 A
rms
100 A
rms
250 A
rms
Torque constant k
t
1.27 Nm/A
rms
1.68 Nm/A
rms
1.76 Nm/A
rms
Voltage constant k
e
78.49 V
rms
/1,000
rpm
103.67 V
rms
/1,000
rpm
106.63 V
rms
/1,000
rpm
Thermal time constant t
th
460 s 525 s 568 s
Winding resistance at 25 °C R
tt
0.319 Ω 0.345 Ω 0.096 Ω
Winding inductance L
tt
3.551 mH 4.047 mH 1.727 mH
Power connector Size 1.5 rotatable Cable box A
Feedback connector Signal resolver connector rotatable Signal resolver
connector
Thermal sensor NTC 220 kOhm, Pt1000
Cooling water flow rate Q
W
3-5 l/min
(0.8 - 1.3 gpm)
3-5 l/min
(0.8 - 1.3 gpm)
6-8 l/min
(1.6 - 2.1 gpm)
EPU unit
Inertia J 75 kg cm
2
(664 10
-4
lbf in s
2
)
81.2 kg cm
2
(719 10
-4
lbf in s
2
)
170.5 kg cm
2
(1,509 10
-4
lbf in s
2
)
Weight m 65.1 kg (143.5 lb) 73.9 kg (162.9 lb) 107.9 kg (237.9 lb)
Tightening torque 8x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-045 size 5 G392-060 size 5 G392-072 size 5
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with water temperatures from +25 °C (+77 °F) up to +40 °C (+104 °F). Winding temperature measure up to +110 °C
(+230 °F) over water
4) Optional via Sp port (flushing port)
SIzE 32
Liquid Cooling, S EPU 032 A D xx xx W
18Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Motor Performance Curves
S0 W
H0 W
M0 W
3
1
2
5
0 2,500 3,5001,500500
400
(3,540)
350
(3,098)
300
(2,655)
250
(2,213)
200
(1,770)
150
(1,328)
100
(885)
50
(443)
0
016
(4.2)
48
(12.7)
80
(21.1)
112
(29.6)
294
(4,264)
196
(2,843)
98
(1,421)
0
Speed [r/min]
Pressure difference @ 32 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Flow @ 32 cm
3
[l/min (gpm)]
3
5
1
4
2
0 1,500500 2,500 3,500
400
(3,540)
350
(3,098)
300
(2,655)
250
(2,213)
200
(1,770)
150
(1,328)
100
(885)
50
(443)
0
016
(4.2)
48
(12.7)
80
(21.1)
112
(29.6)
294
(4,264)
196
(2,843)
98
(1,421)
0
Speed [r/min]
Pressure difference @ 32 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Flow @ 32 cm
3
[l/min (gpm)]
3
1
2
0 1,500 2,500500 3,500
400
(3,540)
350
(3,098)
300
(2,655)
250
(2,213)
200
(1,770)
150
(1,328)
100
(885)
50
(443)
0
016
(4.2)
48
(12.7)
80
(21.1)
112
(29.6)
294
(4,264)
196
(2,843)
98
(1,421)
0
Speed [r/min]
Pressure difference @ 32 cm
3
[bar (psi)]
Torque [Nm (lbf in)]
Flow @ 32 cm
3
[l/min (gpm)]
1
2
3
4
5
Continuous torque at 110 K temperature
difference over water, max. winding
temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
Motor performance determined with respective max. cooling water flow rate, see characteristic table
SIzE 32
Liquid Cooling, S EPU 032 A D xx xx W
19Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Mounting Pattern
Pump Front View
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 20 (0.79 in) 25 (0.98 in)
Sp Flushing port 10 (145 psi) 7 (0.28 in) 15 (0.60 in)
L Leakage port 10 (145 psi) 11 (0.43 in) 11.5 (0.45 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 5 (0.20 in) 5.5 (0.22 in)
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended: Use 8 hexagon head cap
screws M12 (property class 12.9, minimum
length 45 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
Note: Dimensions mm (inch)
M
B
X
max
X
min
A
Sp
L
A
X
max
Sp
X
min
LB
Ø6 - 14.5 deep
(Ø0.236 - 0.571 deep)
253
(9.961)
max. 392
(15.435)
8 x Ø 13.5 (0.531)
55
(2.165)
55
(2.165)
113.5
(4.469)
113.5
(4.469)
73.5
(2.894)
73.5
(2.894)
123.5
(4.862)
123.5
(4.862)
273
(10.748)
S
p
L
B
X
MIN
X
MAX
3
12
55
(2.165)
55
(2.165)
113.5
(4.469)
113.5
(4.469)
73.5
(2.894)
73.5
(2.894)
123.5
(4.862)
123.5
(4.862)
137.5
(5.413)
137.5
(5.413)
127.5
(5.020)
127.5
(5.020)
26.5
(1.043)
10
(0.394)
(0.394)
10
85
(3.346)
85
(3.346)
107
(4.213)
103
(4.055)
68
(2.677)
68
(2.677)
SIzE 32
Liquid Cooling, S EPU 032 A D xx xx W
20Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
M0 W
Installation Drawings
S0 W
H0 W
324
(12.756)
472
(18.583)
38
(1.496)
74
(2.913)
160
(6.299)
122
(4.803)
23
(0.906)
123
(4.842)
25
(0.984)
1
404
(15.906)
552
(21.732)
38
(1.496)
74
(2.913)
160
(6.299)
122
(4.803)
23
(0.906)
123
(4.842)
25
(0.984)
1
515
(20.276)
663
(26.102)
110
(4.331)
171
(6.732)
226.3
(8.909)
254
(10)
232
(9.134)
81
(3.189)
23
(0.906)
123
(4.842)
25
(0.984)
215
(8.465)
2
103
(4.055)
1) Cooler outlet G3/8“ (thread depth max. 7 mm)
2) Cooler outlet G1/2“ (thread depth max. 7 mm)
Note: Dimensions mm (inch)
SIzE 32
Liquid Cooling, S EPU 032 A D xx xx W
21Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 80
Characteristics Table
Performance class Small Medium High
S EPU 080 A D xx S0 C M0 C H0 C
Pump
Displacement V
max
80 cm
3
/rev (4.88 in
3
/rev)
Maximum pump speed
at 2.4 bar (abs.)
n
max
2,700 rpm
Maximum pump acceleration
ṅ
max
45,000 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
216 l/min (57.1 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
4 - 6 l/min (1.1 - 1.6 gpm)
Motor
Continuous stall torque
3)
M
0
137 Nm (1,213 lbf in)
235 Nm (2,080 lbf in) 298 Nm (2,638 lbf in)
Rated torque
3)
M
n
52 Nm (460 lbf in) 169 Nm (1,496 lbf in) 230 Nm (2,036 lbf in)
Maximum torque M
max
595 Nm
(5,266 lbf in)
1,477 Nm
(13,073 lbf in)
1,972 Nm
(17,454 lbf in)
Rated speed n
n
2,500 rpm 900 rpm 700 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
69.17 A
rms
106.32 A
rms
100,63 A
rms
Maximum current I
max
340.5 A
rms
795 A
rms
795 A
rms
Torque constant k
t
1.98 Nm/A
rms
(17.5 lbf in A
rms
)
2.21 Nm/A
rms
(19.6 lbf in A
rms
)
2.96 Nm/A
rms
(26.2 lbf in A
rms
)
Voltage constant k
e
119.96 V
rms
/1,000
rpm
148.09 V
rms
/1,000
rpm
197.70 V
rms
/1,000
rpm
Thermal time constant t
th
5,200 s 5,900 s 6,850 s
Winding resistance at 25 °C R
tt
0.074 Ω 0.024 Ω 0.03 Ω
Winding inductance L
tt
1.433 mH 0.583 mH 0.778 mH
Power connector Size 1.5 rotatable Cable box A
Feedback connector
Signal resolver
connector rotatable
Signal resolver connector
Thermal sensor NTC 220 kOhm, Pt1000
EPU unit
Inertia J 340.97 kg cm
2
(3,018 10
-4
lbf in s
2
)
1207.69 kg cm
2
(10,689 10
-4
lbf in s
2
)
1528.3 kg cm
2
(13,527 10
-4
lbf in s
2
)
Weight m 159.4 kg (351.4 lb) 198.6 kg (437.8 lb) 249.5 kg (550.1 lb)
Tightening torque
8x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-072 size 5 G392-090 size 6 G392-090 size 6
Natural Cooling, S EPU 080 A D xx xx C
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with ambient temperatures up to +40 °C (+104 °F). Winding temperature measure up to +110 °C (+230 °F) over ambient
4) Mandatory via Sp port (flushing port)
22Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 80
Natural Cooling, S EPU 080 A D xx xx C
1
2
3
5
4
0 500 1,000 2,0001,500 2,500
0
100
(885)
200
(1,770)
300
(2,655)
400
(3,540)
500
(4,425)
600
(5,310)
700
(6,196)
800
(7,081)
0
78.5
(1,139)
157
(2,277)
235.5
(3,416)
314
(4,554)
040
(10.6)
80
(21.1)
120
(31.7)
160
(42.3)
200
(52.8)
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 80 cm
3
[l/min (gpm)]
Pressure difference @ 80 cm
3
[bar (psi)]
1
4
2
3
5
0 500 1,000 2,0001,500 2,500
0
100
(885)
200
(1,770)
300
(2,655)
400
(3,540)
500
(4,425)
600
(5,310)
700
(6,196)
800
(7,081)
0
78.5
(1,139)
157
(2,277)
235.5
(3,416)
314
(4,554)
040
(10.6)
80
(21.1)
120
(31.7)
160
(42.3)
200
(52.8)
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 80 cm
3
[l/min (gpm)]
Pressure difference @ 80 cm
3
[bar (psi)]
1
4
2
3
5
0 500 1,000 2,0001,500 2,500
0
100
(885)
200
(1,770)
300
(2,655)
400
(3,540)
500
(4,425)
600
(5,310)
700
(6,196)
800
(7,081)
0
78.5
(1,139)
157
(2,277)
235.5
(3,416)
314
(4,554)
040
(10.6)
80
(21.1)
120
(31.7)
160
(42.3)
200
(52.8)
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 80 cm
3
[l/min (gpm)]
Pressure difference @ 80 cm
3
[bar (psi)]
Motor Performance Curves
S0 C
H0 C
M0 C
1
2
3
4
5
Continuous torque at 110 K temperature
difference over water, max. winding
temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
Motor performance determined with respective max. cooling water flow rate, see characteristic table
23Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 80
Mounting Pattern
Pump Front View
M
B
X
max
X
min
A
Sp
L
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 26 (1.02 in) 32 (1.26 in)
Sp Flushing port 10 (145 psi) 10 (0.39 in) 20 (0.79 in)
L Leakage port 10 (145 psi) 16.5 (0.65 in) 17 (0.67 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 7 (0.28 in) 7,5 (0.30 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 7 (0.28 in) 7,5 (0.30 in)
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended: Use 8 hexagon head cap
screws M12 (property class 12.9, minimum
length 45 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
Note: Dimensions mm (inch)
Natural Cooling, S EPU 080 A D xx xx C
309
(12.165)
322
(12.677)
25°
25°
35°
35°
Ø 06-14.5 deep
(Ø 0.236 - 0.571 deep)
max. 512
(20.160)
8 x Ø 13.5 (0.531)
X
min
A
Sp
L
B
X
max
25°
25°
35°
35°
101
(3.976)
101
(3.976)
(0.591)
15
3
12
130
(5.118)
126
(4.961)
85
(3.346)
85
(3.346)
(0.591)
15
L
B
A
X
MIN
X
MAX
S
p
32.5
(1.280)
156
(6.142)
156
(6.142)
322
(12.677)
Ø
162.5
(6.398)
162.5
(6.398)
4
(0.157)
Ø
24Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 80
109.5
(4.311)
167.5
(6.594)
111
(4.370)
118
(4.663)
268
(10.535)
232
(9.134)
666
(26.22)
851
(33.504)
155
(6.102)
30
(1.181)
23
(0.906)
109.5
(4.311)
167.5
(6.594)
111
(4.37)
118
(4.663)
267.5
(10.533)
232
(9.13)
786
(30.945)
971
(38.228)
155
(6.102)
30
(1.181)
23
(0.906)
M0 C
HO C
Installation Drawings
S0 C
Note: Dimensions mm (inch)
Natural Cooling, S EPU 080 A D xx xx C
632
(24.882)
817
(32.165)
44.5
(1.752)
74
(2.913)
155
(6.102)
30
(1.181)
137
(5.394)
190
(7.480)
23
(0.906)
25Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 80
Liquid Cooling, S EPU 080 A D xx xx W
Characteristics Table
Performance class Small Medium High
S EPU 080 A D xx
S0 W M0 W H0 W
Pump
Displacement V
max
80 cm
3
/rev
(4.88 in
3
/rev)
Maximum pump speed
at 2.4 bar (abs.)
n
max
2,700 rpm
Maximum pump acceleration
ṅ
max
45,000 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
216 l/min (57.1 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
4 - 6 l/min (1.1 - 1.6 gpm)
Motor
Continuous stall torque
3)
M
0
151 Nm (1,336 lbf in) 227 Nm (2,009 lbf in) 498 Nm (4,408 lbf in)
Rated torque
3)
M
n
128 Nm (1,133 lbf in)
189 Nm (1,673 lbf in)
347 Nm (3,071 lbf in)
Maximum torque M
max
391 Nm
(3,461 lbf in)
595 Nm
(5,266 lbf in)
1,387 Nm
(12,276 lbf in)
Rated speed n
n
2,500 rpm 1,800 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
85.95 A
rms
114.87 A
rms
235.21 A
rms
Maximum current I
max
250 A
rms
340 A
rms
750 A
rms
Torque constant k
t
1.76 Nm/A
rms
(15.6 lbf in/A
rms
)
1.97 Nm/A
rms
(17.4 lbf in/A
rms
)
2.12 Nm/A
rms
(18.8 lbf in/A
rms
)
Voltage constant k
e
106.63 V
rms
/1,000
rpm
119.96 V
rms
/1,000
rpm
145.87 V
rms
/1,000
rpm
Thermal time constant t
th
568 s 704 s 1,680 s
Winding resistance at 25 °C R
tt
0.096 Ω 0.074 Ω 0.024 Ω
Winding inductance L
tt
1.727 mH 1.44 mH 0.608 mH
Power connector Cable box A
Feedback connector Signal resolver connector
Thermal sensor NTC 220 kOhm, Pt1000
Cooling water flow rate Q
W
6-8 l/min
(1.6 - 2.1 gpm)
6-8 l/min
(1.6 - 2.1 gpm)
8 l/min
(2.1 gpm)
EPU unit
Inertia J 295.8 kg cm
2
(2,618 10
-4
lbf in s
2
)
346.3 kg cm
2
(3,065 10
-4
lbf in s
2
)
1,207.3 kg cm
2
(10,686 10
-4
lbf in s
2
)
Weight m 144.3 kg
(318.1 lb)
168.1 kg
(370.6 lb)
227.5 kg
(501.6 lb)
Tightening torque
8x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-110 size 6 G392-110 size 6 G392-143 size 6A
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with water temperatures from +25°C(+77°F) up to +40°C (+104°F). Winding temperature measure up to
+110°C(+230°F) over water
4) Mandatory via Sp port (flushing port)
26Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 80
Liquid Cooling, S EPU 080 A D xx xx W
Motor Performance Curves
S0 W
H0 W
M0 W
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 80 cm
3
[l/min (gpm)]
Pressure difference @ 80 cm
3
[bar (psi)]
1
2
3
5
4
0 500 1,000 2,0001,500 2,500
0
100
(885)
200
(1,770)
300
(2,655)
400
(3,540)
500
(4,425)
600
(5,310)
700
(6,196)
800
(7,081)
0
78.5
(1,139)
157
(2,277)
235.5
(3,416)
314
(4,554)
040
(10.6)
80
(21.1)
120
(31.7)
160
(42.3)
200
(52.8)
1
4
2
5
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 80 cm
3
[l/min (gpm)]
Pressure difference @ 80 cm
3
[bar (psi)]
3
0 500 1,000 2,0001,500 2,500
0
100
(885)
200
(1,770)
300
(2,655)
400
(3,540)
500
(4,425)
600
(5,310)
700
(6,196)
800
(7,081)
0
78.5
(1,139)
157
(2,277)
235.5
(3,416)
314
(4,554)
040
(10.6)
80
(21.1)
120
(31.7)
160
(42.3)
200
(52.8)
1
4
2
5
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 80 cm
3
[l/min (gpm)]
Pressure difference @ 80 cm
3
[bar (psi)]
3
0 500 1,000 2,0001,500 2,500
0
100
(885)
200
(1,770)
300
(2,655)
400
(3,540)
500
(4,425)
600
(5,310)
700
(6,196)
800
(7,081)
0
78.5
(1,139)
157
(2,277)
235.5
(3,416)
314
(4,554)
040
(10.6)
80
(21.1)
120
(31.7)
160
(42.3)
200
(52.8)
1
2
3
4
5
Continuous torque at 110 K temperature
difference over water, max. winding
temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Motor performance determined with respective max. cooling water flow rate, see characteristic table
Pressure difference ∆p = p
A
– p
B
27Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Mounting Pattern
Pump Front View
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 26 (1.02 in) 32 (1.26 in)
Sp Flushing port 10 (145 psi) 10 (0.39 in) 20 (0.79 in)
L Leakage port 10 (145 psi) 16.5 (0.65 in) 17 (0.67 in)
X
max
Control port for maximum
displacement (option N only)
350 (5,076 psi) 7 (0.28 in) 7,5 (0.30 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 7 (0.28 in) 7,5 (0.30 in)
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended: Use 8 hexagon head cap
screws M12 (property class 12.9, minimum
length 45 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
Note: Dimensions mm (inch)
M
B
X
max
X
min
A
Sp
L
25°
25°
35°
35°
101
(3.976)
101
(3.976)
(0.591)
15
3
12
130
(5.118)
126
(4.961)
85
(3.346)
85
(3.346)
(0.591)
15
L
B
A
X
MIN
X
MAX
S
p
32.5
(1.280)
156
(6.142)
156
(6.142)
322
(12.677)
Ø
162.5
(6.398)
162.5
(6.398)
4
(0.157)
Ø
309
(12.165)
322
(12.677)
25°
25°
35°
35°
Ø 06-14.5 deep
(Ø 0.236 - 0.571 deep)
max. 512
(20.160)
8 x Ø 13.5 (0.531)
X
min
A
Sp
L
B
X
max
SIzE 80
Liquid Cooling, S EPU 080 A D xx xx W
28Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
M0 W
Installation Drawings
S0 W
H0 W
23
(0.906)
254
(10)
232
(9.134)
110
(4.331)
171
(6.732)
226.3
(8.909)
530
(20.866)
715
(28.150)
155
(6.102)
30
(1.181)
81
(3.189)
103
(4.055)
1
109.5
(4.311)
268
(10.535)
232
(9.13)
666
(26.22)
851
(33.504)
155
(6.102)
30
(1.181)
38
(1.499)
23
(0.906)
170
(6.693)
2
Note: Dimensions mm (inch)
SIzE 80
Liquid Cooling, S EPU 080 A D xx xx W
1) Cooler outlet G1/2“ (thread depth max. 7 mm)
2) Cooler outlet G3/4“ (thread depth max. 16 mm)
663
(26.102)
848
(33.386)
155
(6.102)
30
(1.181)
256
(10.079)
232
(9.134)
81
(3.189)
103
(4.055)
171
(6.732)
226.3
(8.909)
110
(4.331)
1
23
(0.906)
29Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 140
Characteristics Table
Performance class Small
S EPU 140 A D xx S0 C
Pump
Displacement V
max
140 cm
3
/rev (8.54 in
3
/rev)
Maximum pump speed
at 3.7 bar (abs.)
n
max
2,300 rpm
Maximum pump acceleration
ṅ
max
28,750 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
322 l/min (85.1 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
6 - 8 l/min (1.6 - 2.1 gpm)
Motor
Continuous stall torque
3)
M
0
298 Nm (2,638 lbf in)
Rated torque
3)
M
n
230 Nm (2,036 lbf in)
Maximum torque M
max
1,972 Nm (17,454 lbf in)
Rated speed n
n
700 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
100.63 A
rms
Maximum current I
max
795 A
rms
Torque constant k
t
2.96 Nm/A
rms
(26.2 lbf in/A
rms
)
Voltage constant k
e
197.70 V
rms
/1,000
rpm
Thermal time constant t
th
6,850 s
Winding resistance at 25 °C R
tt
0.03 Ω
Winding inductance L
tt
0.778 mH
Power connector Cable box A
Feedback connector Signal resolver connector
Thermal sensor NTC 220 kOhm, Pt1000
EPU unit
Inertia J 1,722 kg cm
2
(15,241 10
-4
lbf in s
2
)
Weight m 280.8 kg (619.1 lb in)
Tightening torque
12x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-143 size 6
Natural Cooling, S EPU 140 A D xx xx C
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with ambient temperatures up to +40 °C (+104 °F). Winding temperature measure up to +110 °C (+230 °F) over ambient
4) Mandatory via Sp port (flushing port)
30Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 140
Natural Cooling, S EPU 140 A D xx xx C
1
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 140 cm
3
[l/min (gpm)]
Pressure difference @ 140 cm
3
[bar (psi)]
3
5
4
0 500 1,000 1,500 2,000
0
200
(1,770)
600
(5,310)
400
(3,540)
800
(7,081)
1,000
(8,851)
1,400
(12,391)
1,600
(14,161)
1,200
(10,621)
0
90
(1,305)
180
(2,611)
270
(3,916)
070
(18.5)
140
(37.0)
210
(55.5)
280
(74.0)
Motor Performance Curves
S0 C
1
2
3
4
5
Continuous torque at 110 K temperature
difference over ambient, max. winding
temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
31Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 140
Mounting Pattern
Pump Front View
M
B
X
max
X
min
A
Sp
L
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 32.5 (1.28 in) 38 (1.50 in)
Sp Flushing port 10 (145 psi) 12 (0.47 in) 25 (0.98 in)
L Leakage port 10 (145 psi) 19.5 (0.77 in) 20 (0.79 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 9.5 (0.37 in) 10 (0.39 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 9.5 (0.37 in) 10 (0.39 in)
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
-surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended:
Use 12 hexagon head cap
screws M12 (property
class 12.9, minimum
length 45 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
Note: Dimensions mm (inch)
Natural Cooling, S EPU 140 A D xx xx C
25°
25°
20°
20°
20°
20°
380
(14.961)
374
(14.724)
Ø
max. 563
(22.165)
12x Ø
13,5
(0.531)
deep
Ø 6 (0.236)
14.5
(0.571)
A
Sp
L
B
X
min
X
max
3
A
S
p
L
B
1
X
MIN
X
MAX
2
130
(5.118)
130
(5.118)
25°
25°
20°
20°
20°
20°
Ø
4
(0.157)
17
(0.669)
(0.669)
17
19,5
(0.768)
380
(14.961)
Ø
150
(5.906)
190
(7.480)
190
(7.480)
152
(5.984)
98
(3.858)
98
(3.858)
32Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 140
Installation Drawings
S0 C
Note: Dimensions mm (inch)
Natural Cooling, S EPU 140 A D xx xx C
23
(0.906)
268
(10.533)
232
(9.13)
111
(4.370)
118
(4.663)
109.5
(4.311)
167.5
(6.594)
786
(30.945)
987
(38.858)
166
(6.535)
35
(1.378)
33Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Characteristics Table
Performance class Small Medium High
S EPU 140 A D xx
S0 W M0 W H0 W
Pump
Displacement V
max
140 cm
3
/rev (8.54 in
3
/rev)
Maximum pump speed
at 3.7 bar (abs.)
n
max
2,300 rpm
Maximum pump acceleration
ṅ
max
28,750 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
322 l/min (85.1 gpm)
Maximum pressure ports A and B
p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
6 - 8 l/min (1.6 -2.1 gpm)
Motor
Continuous stall torque
3)
M
0
227 Nm (2,009 lbf in) 498 Nm (4,408 lbf in) 654 Nm (5,788 lbf in)
Rated torque
3)
M
n
189 Nm (1,673 lbf in) 347 Nm (3,071 lbf in) 427 Nm (3,779 lbf in)
Maximum torque M
max
595 Nm
(5,266 lbf in)
1,387 Nm
(12,276 lbf in)
1,950 Nm
(17,259 lbf in)
Rated speed n
n
2,500 rpm 1,800 rpm 1,800 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
114.87 A
rms
235.21 A
rms
230.9 A
rms
Maximum current I
max
340 A
rms
750 A
rms
795 A
rms
Torque constant k
t
1.97 Nm/A
rms
(17.4 lbf in/A
rms
)
2.12 Nm/A
rms
(18.8 lbf in/A
rms
)
2.83 Nm/A
rms
(25.0 lbf in/A
rms
)
Voltage constant k
e
119.96 V
rms
/1,000
rpm
145.87 V
rms
/1,000
rpm
195.48 V
rms
/1,000
rpm
Thermal time constant t
th
704 s 1,680 s 1,970 s
Winding resistance at 25 °C R
tt
0.074 Ω 0.024 Ω 0.03 Ω
Winding inductance L
tt
1.44 mH 0.608 mH 0.804 mH
Power connector Cable box A
Feedback connector Signal resolver connector
Thermal sensor NTC 220 kOhm, Pt1000
Cooling water flow rate Q
W
6 - 8 l/min
(1.6 - 2.1 gpm)
8 l/min
(2.1 gpm)
8 l/min
(2.1 gpm)
EPU unit
Inertia J 540 kg cm
2
(4,779 10
-4
lbf in s
2
)
1,401 kg cm
2
(12,400 10
-4
lbf in s
2
)
1,722 kg cm
2
(15,241 10
-4
lbf in s
2
)
Weight m 199.4 kg
(439.6 lb)
258.8 kg
(570.6 lb)
295.8 kg
(652.1 lb)
Tightening torque
12x M12x45 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-143 size 6A G395-210 size 6A G395-210 size 6A
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with water temperatures from +25°C(+77°F) up to +40°C (+104°F). Winding temperature measure up to +110 °C
(+230 °F) over water
4) Mandatory via Sp port (flushing port)
SIzE 140
Liquid Cooling, S EPU 140 A D xx xx W
34Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Motor Performance Curves
M0 W
H0 W
S0 W
1
4
5
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 140 cm
3
[l/min (gpm)]
Pressure difference @ 140 cm
3
[bar (psi)]
3
0 500 1,000 1,500 2,000
0
200
(1,770)
600
(5,310)
400
(3,540)
800
(7,081)
1,000
(8,851)
1,400
(12,391)
1,600
(14,161)
1,200
(10,621)
0
90
(1,305)
180
(2,611)
270
(3,916)
070
(18.5)
140
(37.0)
210
(55.5)
280
(74.0)
1
4
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 140 cm
3
[l/min (gpm)]
Pressure difference @ 140 cm
3
[bar (psi)]
3
5
0 500 1,000 1,500 2,000
0
200
(1,770)
600
(5,310)
400
(3,540)
800
(7,081)
1,000
(8,851)
1,400
(12,391)
1,600
(14,161)
1,200
(10,621)
0
90
(1,305)
180
(2,611)
270
(3,916)
070
(18.5)
140
(37.0)
210
(55.5)
280
(74.0)
1
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 140 cm
3
[l/min (gpm)]
Pressure difference @ 140 cm
3
[bar (psi)]
3
5
4
0 500 1,000 1,500 2,000
0
200
(1,770)
600
(5,310)
400
(3,540)
800
(7,081)
1,000
(8,851)
1,400
(12,391)
1,600
(14,161)
1,200
(10,621)
0
90
(1,305)
180
(2,611)
270
(3,916)
070
(18.5)
140
(37.0)
210
(55.5)
280
(74.0)
1
2
3
4
5
Continuous torque at 110 K temperature
difference over water, max. winding
temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
Motor performance determined with respective max. cooling water flow rate, see characteristic table
SIzE 140
Liquid Cooling, S EPU 140 A D xx xx W
35Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Mounting Pattern
Pump Front View
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 32.5 (1.28 in) 38 (1.50 in)
Sp Flushing port 10 (145 psi) 12 (1.47 in) 25 (0.98 in)
L Leakage port 10 (145 psi) 19.5 (0.78 in) 20 (0.79 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 9.5 (0.37 in) 10 (0.39 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 9.5 (0.37 in) 10 (0.39 in)
1. Use a spring-type pin with nominal diameter
of 4 mm (0.16 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended: Use 12 hexagon head cap
screws M12 (property class 12.9, minimum
length 45 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
No
te: Dimensions mm (inch)
M
B
X
max
X
min
A
Sp
L
25°
25°
20°
20°
20°
20°
380
(14.961)
374
(14.724)
Ø
max. 563
(22.165)
12x Ø
13,5
(0.531)
deep
Ø 6 (0.236)
14.5
(0.571)
A
Sp
L
B
X
min
X
max
3
A
S
p
L
B
1
X
MIN
X
MAX
2
130
(5.118)
130
(5.118)
25°
25°
20°
20°
20°
20°
Ø
4
(0.157)
17
(0.669)
(0.669)
17
19,5
(0.768)
380
(14.961)
Ø
150
(5.906)
190
(7.480)
190
(7.480)
152
(5.984)
98
(3.858)
98
(3.858)
SIzE 140
Liquid Cooling, S EPU 140 A D xx xx W
36Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
M0 W
Installation Drawings
S0 W
H0 W
232
(9.134)
81
(3.189)
103
(4.055)
254
(10)
110
(4.331)
171
(6.732)
226.3
(8.909)
663
(26.102)
864
(34.016)
23
(0.906)
35
(1.378)
166
(6.535)
1
109.5
(4.311)
268
(10.535)
232
(9.134)
170
(6.693)
2
38
(1.499)
23
(0.906)
666
(26.22)
867
(34.134)
166
(6.535)
35
(1.378)
1) Cooler outlet G1/2“ (thread depth max. 7 mm)
2) Cooler outlet G3/4“ (thread depth max. 16 mm)
Note: Dimensions mm (inch)
SIzE 140
Liquid Cooling, S EPU 140 A D xx xx W
109.5
(4.311)
268
(10.533)
232
(9.13)
170
(6.693)
2
38
(1.499)
23
(0.906)
786
(30.945)
987
(38.858)
166
(6.535)
35
(1.378)
37Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 250
Characteristics Table
Performance class Small
S EPU 250 A D xx S0 C
Pump
Displacement V
max
250 cm
3
/rev (15.25 in
3
/rev)
Maximum pump speed
at 3 bar (abs.)
n
max
1,800 rpm
Maximum pump acceleration
ṅ
max
18,000 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
450 l/min (118.9 gpm)
Maximum pressure ports A and B p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
10 - 12 l/min (2.6 - 3.2 gpm)
Motor
Continuous stall torque
3)
M
0
418 Nm (3,700 lbf in)
Rated torque
3)
M
n
330 Nm (2,921 lbf in)
Maximum torque M
max
2,100 Nm (18,587 lbf in)
Rated speed n
n
575 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
141.11 A
rms
Maximum current I
max
800 A
rms
Torque constant k
t
2.96 Nm/A
rms
(26.2 lbf in/A
rms
)
Voltage constant k
e
197.70 V
rms
/1,000
rpm
Thermal time constant t
th
8,600 s
Winding resistance at 25 °C R
tt
0.019 Ω
Winding inductance L
tt
0.548 mH
Power connector Cable box B
Feedback connector Signal resolve connector
Thermal sensor NTC 220 kOhm, Pt1000
EPU unit
Inertia J 3,540 kg cm
2
(31,332 10
-4
lbf in s
2
)
Weight m 535 kg (1,179.5 lb)
Tightening torque
12x M12x50 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G392-170 size 6A
Natural Cooling, S EPU 250 A D xx xx C
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with ambient temperatures up to +40 °C (+104 °F). Winding temperature measure up to +110 °C (+230 °F) over ambient
4) Mandatory via Sp port (flushing port)
38Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 250
Natural Cooling, S EPU 250 A D xx xx C
1
5
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 250 cm
3
[l/min (gpm)]
Pressure difference @ 250 cm
3
[bar (psi)]
3
4
0 500 1,000 1,500
0
200
(1,770)
600
(5,310)
1,000
(8,851)
1,400
(12,391)
1,800
(15,931)
2,200
(19,472)
0
50
(725)
150
(2,176)
250
(3,626)
0 125
(33.0)
250
(66.0)
375
(99,1)
Motor Performance Curves
S0 C
1
2
3
4
5
Continuous torque at 110 K temperature
difference over ambient, max. winding
temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
39Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 250
Mounting Pattern
Pump Front View
M
B
X
max
X
min
A
Sp
L
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 39 (1.53 in) 45 (1.77 in)
Sp Flushing port 10 (145 psi) 10 (0.39 in) 25 (0.98 in)
L Leakage port 10 (145 psi) 24 (0.94 in) 25 (0.98 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 12 (0.47 in) 13 (0.51 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 12 (0.47 in) 13 (0.51 in)
1. Use a spring-type pin with nominal diameter
of 6 mm (0.236 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended: Use 12 hexagon head cap
screws M12 (property class 12.9, minimum
length 50 mm (1.8 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
Note: Dimensions mm (inch)
Natural Cooling, S EPU 250 A D xx xx C
3
21
A
X
MIN
X
MAX
S
p
L
B
Ø
52
(2.047)
172
(6.772)
198
(7.795)
195
(7.677)
135
(5.315)
135
(5.315)
25°
25°
20°
20°
20°
20°
500
(19.685)
Ø
172
(6.772)
(0.669)
17
(0.669)
17
464
(18.268)
Ø
6
(0.236)
deep
12x Ø
25°
25°
20°
20°
20°
20°
484
(19.055)
499
(19.646)
Ø
Ø
Ø 8 (0.315)
15
(0.591)
13,5
(0.531)
394
(15.512)
394
(15.512)
X
max
B
X
min
A
Sp
L
40Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
SIzE 250
Installation Drawings
S0 C
Note: Dimensions mm (inch)
Natural Cooling, S EPU 250 A D xx xx C
994
(39,134)
231
(9,094)
1,264
(49.764)
39
(1.535)
356
(14.016)
330
(12.992)
180
(7.087)
169.5
(6.673)
29
(1.142)
36.5
(1.437)
41Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
1) See diagram “Maximum housing pressure p
Lmax
,
p
Sp
= f(n)” and “Installation note” (page 3)
2) See catalog “Modular Multi-Axis Servo Drive Systems (MSD)”
3) Operation in still air with water temperatures from +25 °C(+77 °F) up to +40 °C (+104 °F). Winding temperature measure up to +110
°C(+230 °F) over water
4) Mandatory via Sp port (flushing port)
Characteristics Table
Performance class Small Medium High
S EPU 250 A D xx
S0 W M0 W H0 W
Pump
Displacement V
max
250 cm
3
/rev (15.26 in
3
/rev)
Maximum pump speed
at 3 bar (abs.)
n
max
1,800 rpm
Maximum pump acceleration
ṅ
max
18,000 r/min/s
Maximum housing pressure
1)
p
Lmax
,
p
Sp
10 bar (145 psi)
Maximum flow Q
max
450 l/min (118.9 gpm)
Maximum pressure ports A
and B
p
A
, p
B
350 bar (5,076 psi)
Flushing flow rate
4)
Q
Sp
10 - 12 l/min (2.6 - 3.2 gpm)
Motor
Continuous stall torque
3)
M
0
498 Nm (4,408 lbf in) 654 Nm (5,788 lbf in)
967 Nm (8,559 lbf in)
Rated torque
3)
M
n
347 Nm (3,071 lbf in) 427 Nm (3,779 lbf in)
605 Nm (5,355 lbf in)
Maximum torque M
max
1,387 Nm
(12,276 lbf in)
1,950 Nm
(17,259 lbf in)
1,969 Nm
(17,427 lbf in)
Rated speed n
n
1,800 rpm 1,800 rpm 1,700 rpm
Maximum speed n
max
Maximum speed see M = f(n) performance curve
Continuous stall current I
0
235.21 A
rms
230.9 A
rms
340.35 A
rms
Maximum current I
max
750 A
rms
795 A
rms
750 A
rms
Torque constant k
t
2.12 Nm/A
rms
(18.9 lbf in/A
rms
)
2.83 Nm/A
rms
(25.0 lbf in/A
rms
)
2.84 Nm/A
rms
(25.1 lbf in/A
rms
)
Voltage constant k
e
145.87 V
rms
/1,000
rpm
195.48 V
rms
/1,000
rpm
195.48 V
rms
/1,000
rpm
Thermal time constant t
th
1,680 s 1,970 s 2,500 s
Winding resistance at 25 °C R
tt
0.024 Ω 0.03 Ω 0.018 Ω
Winding inductance L
tt
0.608 mH 0.804 mH 0.572 mH
Power connector Cable box A Cable box B
Feedback connector Signal resolver connector
Thermal sensor NTC 220 kOhm, Pt1000
Cooling water flow rate Q
W
8 l/min (2.1 gpm) 8 l/min (2.1 gpm) 8 l/min (2.1 gpm)
EPU unit
Inertia (pump and motor) J 2,576 kg cm
2
(22,800 10
-4
lbf in s
2
)
2,897 kg cm
2
(25,641 10
-4
lbf in s
2
)
3,540 kg cm
2
(31,332 10
-4
lbf in s
2
)
Weight (pump and motor) m 443 kg (976.6 lb) 480 kg (1,058.21 lb) 555 kg (1,223.5 lb)
Tightening torque
12x M12x50 -12.9
hexagon head
120 Nm + 10 Nm (1,062 lbf in + 89 lbf in)
Servo drive
Recommended drive size
2)
G395-210 size 6A G395-210 size 6A G395-450 size 7
SIzE 250
Liquid Cooling, S EPU 250 A D xx xx W
42Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Motor Performance Curves
S0 W
H0 W
M0 W
1
4
5
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 250 cm
3
[l/min (gpm)]
Pressure difference @ 250 cm
3
[bar (psi)]
3
0 500 1,000 1,500
1,800
0
0
50
(725)
150
(2,176)
250
(3,626)
0 125
(33.0)
250
(66.0)
375
(99.1)
200
(1,770)
600
(5,310)
1,000
(8,851)
1,400
(12,391)
1,800
(15,931)
2,200
(19,472)
0 500 1,000 1,500
0
200
(1,770)
600
(5,310)
1,000
(8,851)
1,400
(12,391)
1,800
(15,931)
2,200
(19,472)
0
50
(725)
150
(2,176)
250
(3,626)
0 125
(33.0)
250
(66.0)
375
(99,1)
1,800
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 250 cm
3
[l/min (gpm)]
Pressure difference
@
250 cm
3
[bar (psi)]
3
5
4
1
1
2
3
4
5
Continuous torque at 110 K temperature
difference over water, max. winding
temperature 150 °C (302 °F)
Maximum torque without field weakening
Maximum torque with field weakening
Continuous torque if recommended
drive size is used
Maximum torque with field weakening
if recommended drive size is used
Notes:
Motor performance with 565 V
DC
link voltage
Motor performance doesn‘t take the pump efficiency into account
Pressure difference ∆p = p
A
– p
B
Motor performance determined with respective max. cooling water flow rate, see characteristic table
SIzE 250
Liquid Cooling, S EPU 250 A D xx xx W
1
5
2
Speed [r/min]
Torque [Nm (lbf in)]
Flow @ 250 cm
3
[l/min (gpm)]
Pressure difference @ 250 cm
3
[bar (psi)]
3
4
0 500 1,000 1,500
0
200
(1,770)
600
(5,310)
1,000
(8,851)
1,400
(12,391)
1,800
(15,931)
2,200
(19,472)
0
50
(725)
150
(2,176)
250
(3,626)
0 125
(33.0)
250
(66.0)
375
(99,1)
1,800
43Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Mounting Pattern
Pump Front View
Port Designation Pressure [bar]
Port dimension in counter surface
Minimum Ø [mm] Maximum Ø [mm]
A, B Operating ports 350 (5,076 psi) 39 (1.53 in) 45 (1.77 in)
Sp Flushing port 10 (145 psi) 10 (0.39 in) 25 (0.98 in)
L Leakage port 10 (145 psi) 24 (0.94 in) 25 (0.98 in)
X
max
Control port for maximum
displacement (option N1 only)
350 (5,076 psi) 12 (0.47 in) 13 (0.51 in)
X
min
Control port for minimum
displacement (option N1 only)
350 (5,076 psi) 12 (0.47 in) 13 (0.51 in)
1. Use a spring-type pin with nominal diameter
of 6 mm (0.236 in) (e.g. 4x12) according to
ISO 13337
2. Area of
- surface flatness:
- surface roughness:
3. M12, minimum 25 mm (0.9 in) deep.
Recommended: Use 12 hexagon head cap
screws M12 (property class 12.9, minimum
length 50 mm (1.9 in)) according to ISO 4762.
Tightening torque 120 + 10 Nm (1,062 lbf in +
89 lbf in).
Note: Dimensions mm (inch)
M
B
X
max
X
min
A
Sp
L
3
21
A
X
MIN
X
MAX
S
p
L
B
Ø
52
(2.047)
172
(6.772)
198
(7.795)
195
(7.677)
135
(5.315)
135
(5.315)
25°
25°
20°
20°
20°
20°
500
(19.685)
Ø
172
(6.772)
(0.669)
17
(0.669)
17
464
(18.268)
Ø
6
(0.236)
deep
12x Ø
25°
25°
20°
20°
20°
20°
484
(19.055)
499
(19.646)
Ø
Ø
Ø 8 (0.315)
15
(0.591)
13,5
(0.531)
394
(15.512)
394
(15.512)
X
max
B
X
min
A
Sp
L
SIzE 250
Liquid Cooling, S EPU 250 A D xx xx W
44Rev. J, July 2022
TECHNICAL DATA Moog Electrohydrostatic Pump Unit
Installation Drawings
Note: Dimensions mm (inch)
1) Cooler outlet G3/4“ (thread depth max. 16 mm)
29
(1.412)
356
(14.016)
330
(12.992)
180
(7.087)
171
(6.732)
36.5
(1.437)
994
(39,134)
231
(9.094)
1,264
(49.764)
39
(1.535)
1
S0 W
29
(1.412)
170
(6.693)
666
(26.22)
231
(9.094)
936
(36.85)
39
(1.535)
1
109.5
(4.311)
268
(10.535)
232
(9.134)
38
(1.499)
29
(1.412)
786
(30.945)
231
(9.094)
1,056
(41.575)
39
(1.535)
170
(6.693)
109.5
(4.311)
268
(10.535)
232
(9.134)
38
(1.499)
1
H0 W
M0 W
SIzE 250
Liquid Cooling, S EPU 250 A D xx xx W
45Rev. J, July 2022
Moog Electrohydrostatic Pump Unit
U
UVW
V
Protective earth
PROTECTIVE EARTH
U phase
MOTOR
W
U
W
V phase
V
W phase
N/S
Signal connector
1 x M50 x 1.5
Size 1
Size 1.5
Cable box A
Cable box B
For more information on connectors, please see Moog Maximum Dynamic Brushless Servo Motor User Manual.
Protective earth
U phase
V phase
W phase
PROTECTIVE EARTH
2
4
1
2
1
5
4
W
V
U
N/S
MOTOR
Protective earth
U phase
V phase
W phase
PROTECTIVE EARTH
2
4
1
2
1
5
4
W
V
U
N/S
MOTOR
Protective earth
U phase
V phase
W phase
MOTOR
PROTECTIVE EARTH
N/S
W
V
U
W
WU
–
+
12
V
V
U
Protective earth
U phase
V phase
W phase
MOTOR
PROTECTIVE EARTH
N/S
W
V
U
W
WU
–
+
12
V
V
U
TECHNICAL DATA
Power Connectors
ELECTRICAL INTERFACES
VU W
Signal connector
2 x M63 x 1.5
Signal connector
VU W
3 x M10
3 x M12
2 x M12
VU W
Signal connector
2 x M63 x 1.5
M10
2 x M50x1.5
2 x M63x1.5
46Rev. J, July 2022
Moog Electrohydrostatic Pump Unit
V
n
=
Q • 1,000
2
M =
V • ∆
P
•
10
V
n =
Q • 1,000
2
M =
V • ∆
P
•
10
M [Nm] = Torque
V [cm
3
] = Displacement
Δp [bar] = Pressure
difference
p
A
-p
B
n [r/min] = Speed
Q [l/min] = Flow
TECHNICAL DATA
Signal Resolver Connector
Calculations
1
R2
8
S2
S4
R1
S1
S3
7
4
3
2
11
4
3
5
6
12
9
10
1
2
7
8
6
5
Temp-
Temp+
NTC+
NTC-
NTC 220 kΩ
TEMPERATURE
SENSOR
12
11
Pt1000+
Pt1000-
TEMPERATURE
SENSO
Pt1000
R
Cos(+)
Cos(-)
Sin(+)
Sin(-)
Vref(+)
Vref(-)
MOTOR
RESOLVER
47Rev. J, July 2022
ORDERING INFORMATION Moog Electrohydrostatic Pump Unit
Ordering number CB05708-001-yyy
1) 2)
CA44958-001-yyy
1) 2)
CB00076-001-yyy
1) 2)
CA98676-001-yyy
1) 2)
Continuous rated
current
3)
25 A 44 A 61 A 82 A
Cable
cross-section
4 x 4 mm
2
+ 2 x 1.5 mm
2
4 x 6 mm
2
+ 2 x 1.5 mm
2
4 x 10 mm
2
+ 2 x 1.5 mm
2
4 x 16 mm
2
+ 2 x 1.5 mm
2
Temperature
range
3)
-50 to +80 °C
(-58 to 194 °F)
-50 to +80 °C
(-58 to 194 °F)
-50 to +80 °C
(-58 to 194 °F)
-50 to +80 °C
(-58 to 194 °F)
Wiring Connector
pin
Wiring Connector
pin
Wiring Connector
pin
Wiring Connector
pin
Wiring
2 U U U U U U U
4 VV V VV V VV V VV
1 WWW W WWW W WWW W WWW
PE Yellow /
green
PE Yellow /
green
PE Yellow /
green
PE Yellow /
green
5 N. c. /
white
+ N. c. /
white
+ N. c. /
white
+ N. c. /
white
6 N. c. /
black
- N. c. /
black
- N. c. /
black
- N. c. /
black
Connector
housing
Screen Connector
housing
Screen Connector
housing
Screen Connector
housing
Screen
Connector type Size 1 Size 1.5
Ordering number
connector only
C08365-002 CA37698-001
MOTOR POWER CABLES
1) 001 for standard configuration option, others upon request
2) yyy stands for length in meters
Standard length: 1 m, 5 m, 10 m, 15 m, 20 m, 50 m
Further lengths upon request
3) Installation type: fixed. Maximum current carrying capacity
at 30 °C (following DIN VDE 0298-4). The final maximum
current carrying capacity depends, among other things, on the
ambient conditions, the type of installation and the number of
loaded cores.
48Rev. J, July 2022
ORDERING INFORMATION Moog Electrohydrostatic Pump Unit
RESOLVER FEEDBACK CABLES
Ordering number CO8335-013-yyy
1)
CC75041-002-yyy
1)
Motor feedback
system
Resolver, NTC temperature sensor Resolver, Pt1000 temperature sensor
Cable-end assignment Sub-D 9pol Open end
Configuration
Capable for energy
chains
Yes
Minimum bend radius 90 mm
Temperature range -40 to +85 °C
Cable diameter
approximately
8.8 mm
Material of outer
sheath
Polyurethane
Resistance Resistant to oil, hydrolysis and microbic attack (VDE0472)
Approvals UL-Style 20233,+80 °C -300 V
CSA-C22.2N.210-M90, +75 °C -300 V FT1
Ordering number
connector only
CA46373-001
1) yyy stands for length in meters
Standard length: 1 m, 5 m, 10 m, 15 m, 20 m, 50 m
Further lengths upon request
49Rev. J, July 2022
ORDERING INFORMATION Moog Electrohydrostatic Pump Unit
NOTES
50Rev. J, July 2022
ORDERING INFORMATION Moog Electrohydrostatic Pump Unit
Available Connector Orientations
0° - A
270° - G
315° - H
L
90° - C
45° - B
135° - D
180° - E
225° - F
Example shows:
Connector orientation = A,
Cooling connection = G
Angle starts on port L
Natural and fan cooled options use Z in model number pos. 12
Angle between electrical and liquid cooling ports is fixed at -90°
Note:
ORIENTATION OF ELECTRICAL CONNECTORS AND LIQUID COOLING PORTS
Natural Cooling
A Z B Z C Z D Z E Z F Z G Z H Z
x EPU 019 x x xx
SO
C x x ¬ ¬ √ √ ...
x EPU 019 x x xx
MO
C x x √ √ √ √ √ √ ¬ ¬ ...
x EPU 019 x x xx
HO
C x x √ √ √ √ √ √ ¬ ¬ ...
x EPU 032 x x xx xx C x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 080 x x xx xx C x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 140 x x xx xx C x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 250 x x xx xx C x x ¬ ¬ √ √ √ √ √ √ ...
Fan Cooling
A Z B Z C Z D Z E Z F Z G Z H Z
x EPU 019 x x xx
S0
F x x ¬ ¬ √ √ ...
x EPU 019 x x xx
M0
F x x ¬ ¬ √ √ ...
x EPU 019 x x xx
H0
F x x √ √ √ √ √ √ ¬ ¬ ...
x EPU 032 x x xx xx F x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 080 x x xx xx F x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 140 x x xx xx F x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 250 x x xx xx F x x ¬ ¬ √ √ √ √ √ √ ...
Liquid Cooling
A G C A E C G E
x EPU 019 x x xx xx W x x ¬ ¬ √ √ ...
x EPU 032 x x xx xx W x x ¬ ¬ √ √ ...
x EPU 080 x x xx xx W x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 140 x x xx xx W x x ¬ ¬ √ √ √ √ √ √ ...
x EPU 250 x x xx xx W x x ¬ ¬ √ √ √ √ √ √ ...
¬ Standard option
√ Available option
51Rev. J, July 2022
ORDERING INFORMATION Moog Electrohydrostatic Pump Unit
21
2
S
1
4
A
3
5
D
6
B1
N1
7
S0
M0
H0
34 65789
8
C
W
9
S
EPU
3
10
4
12 131110
ESPUD S1A
A
11
H
12
G
Z
1
13
Product type
Electrohydrostatic Pump Unit
Product division
Standard
Type designation
Nominal displacement RPP [cm
3
/U]
019
19
032
32
080
80
140
140
Pump ports
2 operating ports
Cooling
Natural cooling
Liquid cooling
Motor construction
Sealing
Fluid
Mineral oil, HFD
Performance class
Small performance class
Medium performance class
High performance class
Controllers
Mechanical stroke adjustment (V = constant)
Dual displacement
Angle rotatable
Cable box
Electrical connection
0°
315° for S EPU - 019 x x xx - M0 C
or S EPU - 019 x x xx - H0 C
or S EPU - 019 x x xx - H0 F
Connector orientation
270°
Not liquid cooled
Cooling connection (liquid cooling)
Feedback option
2-poles resolver
250 250
XXX
14
Maximum displacement V
max
V
max
(see table below)
14
15
-/
YYY
15
Minimum displace-
ment V
min
V
min
(see table below)
000
Controller B1
(V = constant)
Fan cooling
F
Model number
(assigned at
the factory)
V
max
and V
min
Options for Ordering Code (Positions 14, 15)
Nominal
displacement
V
n
[cm
3
]
Maximum
displacement
V
max
[cm
3
]
Ratio V
n
/ V
min
1.5 2 2.5 3 4
Minimum displacement
V
min
[cm
3
]
019 019 015 010 013 010 008 006 005
032 032 028 024 021 016 013 011 008
080 080 064 048 053 040 032 027 020
140 140 120 100 093 070 056 047 035
250 250 215 180 167 125 100 083 063
Standard
option
ORDERING CODE
The Electrohydrostatic Pump Unit is delivered with seal kit to the manifold
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service.usa@moog.com
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All trademarks as indicated herein are the property of Moog Inc. and its subsidiaries.
©2022 Moog Inc. All rights reserved. All changes are reserved.
Electrohydrostatic Pump Unit
KEM, Rev. J, July 2022, Id. CDL49052-en
WHAT MOVES YOUR WORLDWHAT MOVES YOUR WORLD