Piston Pumps
PZS SERIES
VARIABLE VOLUME PISTON PUMP
*
*
*
M
0
Discharge
port
Suction
port
Drain
port
PZS Series
Variable Volume Piston Pump
70 to 220cm
3
/rev
70 to 100cm
3
/rev 28MPa
130 to 220cm
3
/rev 25MPa
¡Handling
¡ Pump Installation and Piping
Precautions
zUse flexible couplings for connect-
ing the pump shaft to the drive
shaft, and prevent radial or thrust
load from being applied to the
pump shaft.
xEccentricity between the drive shaft
and pump shaft should be no greater
than 0.05mm, with an eccentric angle
error of 1° or less.
cKeep the clamping length of cou-
plings and pump shafts at least 2/3
the length of the coupling width.
vUse a sufficiently rigid pump mount-
ing base.
bSet pump suction side pressure to
-0.03 MPa or more (suction port
flow velocity less than 2 m/sec).
nRaise part of the drain piping so it is
above the topmost part of the pump
body, and insert the return section of
the drain piping into the hydraulic
operating fluid. Also, observe the
values in the following table in order
to limit the drain back pressure to
0.1 MPa.
mMount the pump so the pump shaft
is oriented horizontally.
,Use of rubber hose is recommend-
ed in order to minimize noise and
vibration.
¡Management of Hydraulic Operating
Fluid
zUse only good-quality hydraulic
operating fluid with a kinematic vis-
cosity during operation within the
range of 20 to 200 mm
2
/sec.
Normally, you should use an R&O
type and wear-resistant type of IS-
OGV32 to 68 or equivalent. The
optimum kinematic viscosity during
operation is 20 to 50 mm
2
/sec.
xThe operating temperature range is
5 to 60°C. When the oil tempera-
ture at startup is 5°C or less, run
the pump at low pressure and low
speed until the oil temperature
reaches 5°C.
cProvide a suction strainer with a fil-
tering grade of about 100
µ
(150
mesh).
(Continued on following page)
A
A-22
Features
qq
High pressure, high reliability
These pumps deliver the perfect com-
bination of high pressure (28MPa
{286kgf/cm
2
}maximum) and high relia-
bility. Hydraulic device energy effi-
ciency is ensured because variable
volume capabilities provide the
means to keep the discharge rate to
the desired level.
ww
Low noise, low vibration operation
The semi-cylindrical swash plate of
the PVS series provides high support
and rigidity, making it possible to
increase the number of pistons (from
nine to 11) and equip optimal valve
plates, all of which make low-noise
operation possible.
ee
High reliability, long life
O-ring seals used for mating surfaces
eliminate worries about oil leaks. A
spherical valve plate maintains opti-
mal hydraulic pressure balance, for
stable operation across a wide range
and better contamination resistance
characteristics.
ee
A wide range of possible applications
In addition to use as a stand-alone
pump, a PVS Series pump can be
combined with another IP pump in a
wide range of possible applications.
Note 1. Fixed discharge pump can be configured by combining with an IP pump.
2. Pump capacity adjustment ranges are for control codes N, RS, and WS. For information about control code NQ, see page A-27.
3. The standard direction of rotation is clockwise when viewed from the shaft end. Contact your agent for information about counterclockwise rotation.
4. A keyed straight shaft is standard. Contact your agent for information about spline shafts.
Specifications
Model No.
Item
3B, 4B, 5B 6B
Pipe joint
size
At least 3/4" At least 1"
Pipe I.D.
At least
φ
17 At least
φ
22
Pipe length 1 m or less 1 m or less
Model No.
Pump
Capacity
cm
3
/rev
(Adjustment
Range)
Rated
Voltage
MPa
{kgf/cm
2
}
Maximum
Working
Pressure MPa
{kgf/cm
2
}
Pressure Adjustment
Range MPa
{kgf/cm
2
}
Revolution Speed min
−
1
Weight
kg
Fixed Discharge Pump (Note 1)
Min. Max.
Capacity
cm
3
/rev
Pressure
MPa
{kgf/cm
2
}
PZS-3B-*-170* 1-10
3
4
70
(45 to 70)
21
{214
}
28
{286
}
2to 27 {20.4 to 071.4}
2to21 {20.4 to 214.4}
2to28 {20.4 to 286.4}
500 1800 37
3.6 to 18.18
21
{214}
PZS-4B-*-100* 1-10
3
4
100
(40 to 100)
21
{214
}
28
{286
}
2to 27 {20.4 to 071.4}
2to21 {20.4 to 214.4}
2to28 {20.4 to 286.4}
500 1800 58
3.6 to 15.80
21
{214}
PZS-5B-*-130* 1-10
3
4
130
(51 to 130)
21
{214
}
25
{255
}
2to 27 {20.4 to 071.4}
2to21 {20.4 to 214.4}
2to25 {20.4 to 255.4}
500 1800 86
3.6 to 32.30
21
{214}
PZS-6B-*-180* 1-10
3
4
180
(101 to 180)
21
{214
}
25
{255
}
2to 27 {20.4 to 071.4}
2to21 {20.4 to 214.4}
2to25 {20.4 to 255.4}
500 1800 123
3.6 to 63.90
21
{214}
PZS-6B-*-220* 1-10
3
4
220
(124 to 220)
21
{214
}
25
{255
}
2to 27 {20.4 to 071.4}
2to21 {20.4 to 214.4}
2to25 {20.4 to 255. }
500 1500 126
3.6 to 63.90
21
{214}
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 22
A
A-23
Piston Pumps
vManage hydraulic operating fluid so
contamination is maintained at
class NAS10 or lower.
bUse hydraulic operating fluid when
the operating ambient temperature is
in the range of 0 to 60°C.
¡Startup Precautions
zBefore starting up the pump, fill the
pump body with clean hydraulic
operating fluid through the lubrica-
tion port.
xAn unload circuit is required when
the motor is started under
condition O−3. Contact your agent
about the unload circuit.
cCheck to make sure that the rotation
direction of the pump is the same as
the rotation direction indicated by the
arrow on the pump body.
vAir entering the pump or pipes can
cause noise or vibration. At startup,
set the pump discharge side to a
no-load state, and operate the
pump in the inching mode to
remove any air that might be in the
pump or pipes.
bEquip an air bleed valve in circuits
where it is difficult to release air
before startup.
(See "IP Pumps" on page C-13.)
¡Configuring Pressure and Discharge
Rate Settings
The factory default pump discharge
rate setting is the setting's maxi-
mum value, while the default dis-
charge pressure is the settings min-
imum value. Change the discharge
rate and discharge pressure set-
tings in accordance with your par-
ticular operating conditions.
[
Pressure Adjustment
]
Rotating the pres-
sure adjusting
screw clockwise
increases pres-
sure.
[
Discharge Volume
Adjustment
]
Rotating the flow
rate adjusting
screw clockwise
decreases the dis-
charge rate.
Note: Securely tighten the lock nut after making
adjustments.
Model No. Oil Amount cm
3
PZS-3B 1000
PZS-4B 1800
PZS-5B 2200
PZS-6B 3000
Understanding Model Numbers
Standard type
Pressure compensation(N)
Option type
2-Pressure, 2-Flow Rate Control Type (NQ)
Pressure adjustment range
1: 2 to 7MPa
{20.4 to 71.4kgf/cm
2
}
3: 2 to 21MPa
{20.4 to 214kgf/cm
2
}
4: 2 to 28MPa
{20.4 to 286kgf/cm
2
}
Note: PZS-5B/6B maximum operating pressure: 25MPa (255kgf/cm
2
)
Design number
Variable Control Mechanisms
N: Pressure compensation control
Pump capacity (cm
3
/rev)
70, 100, 130, 180, 220
Mounting method B: Flange type mounting A: Foot type mounting
Pump size 3, 4, 5, 6
PZS – – –4B 100 10N
Pressure adjustment range
1: 2 to 7MPa
{20.4 to 71.4kgf/cm
2
}
3: 2 to 21MPa
{20.4 to 214kgf/cm
2
}
4: 2 to 28MPa
{20.4 to 286kgf/cm
2
}
Note: PZS-5B maximum operating pressure: 25MPa (255kgf/cm
2
)
Design number
Variable Control Mechanisms
NQ: 2-pressure, 2-flow rate control
Pump capacity (cm
3
/rev)
70, 100, 130
Mounting method B: Flange type mounting A: Foot type mounting
Pump size 3, 4, 5
PZS 4 B 100 N Q 10–– –
Pump capacity
cm
3
/ rev
Discharge pressure MPa
P-Q characteristics
PH
PL
q
L
q
H
P-Q characteristics
Pump capacity
cm
3
/ rev
Discharge pressure MPa
*
*
*
M
0
Discharge
port
Suction port Drain port
Rotate left
Rotate
right
Pressure
Pressure adjustment range
Discharge
rate
Pressure
Discharge rate adjustment range
Discharge rate
Rotate left
Rotate right
*
*
*
M
0
Discharge
port
Suction
port
Drain
port
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 23
A
A-24
Piston Pumps
Installation Dimension Drawings
Drain port (G3/4)
Pressure adjusting screw
Pilot port
(Rc 1/4)
Flow rate
adjusting screw
M10x16
Key width
7.94
0
–0.05
Discharge port
SAEJ518b-1
1/2
Suction port
SAEJ518b-1
1/4
8
85
261
31.75
35.33
127
58.7
30.2
223
296 (MAX)
128
164
128
85
136
18
306 (MAX)
548
34
57
147
17
172
φ
0
–0.051
30
φ
0
–0.051
0
–0.25
φ
(PCD 181)
φ
Lubrication
port
Pressure Compensation Type
Installing a remote control relieve valve to the
pilot port provides remote control of pressure
compensation.
PZS-3B-70N*-10
Solenoid Cutoff Control Type (RS)
2-Pressure Control System (WS)
Pressure adjustment range
1: 2 to 7MPa
{20.4 to 71.4kgf/cm
2
}
3: 2 to 21MPa
{20.4 to 214kgf/cm
2
}
4: 2 to 28MPa
{20.4 to 286kgf/cm
2
}
Note: PZS-5B/6B maximum operating pressure: 25MPa (255kgf/cm
2
)
Variable Control Mechanisms
WS: 2-pressure control type
Pump capacity (cm
3
/rev)
70, 100, 130, 180, 220
Design number
Solenoid power supply
1: AC100V
2: AC200V
3: DC12V
4: DC24V
Mounting method B: Flange type mounting A: Foot type mounting
Pump size 3, 4, 5, 6
PZS 4 B 100 W 10S–– –
SOL"ON"
SOL"OFF"
P-Q characteristics
Pump capacity
cm
3
/ rev
Discharge pressure MPa
*
*
*
M
0
Discharge
port
Suction port Drain port
SOL"ON"
SOL"OFF"
P-Q characteristics
Pump capacity
cm
3
/ rev
PH
PL
Discharge pressure MPa
*
*
*
M
0
Discharge
port
Suction port Drain port
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 24
A
A-25
Piston Pumps
PZS-4B-100N*-10
PZS-5B-130N*-10
PZS-6B-180N*-10
PZS-6B-220N*-10
Flow Adjustment Rotation Angle (r) and Pump Capacity (q)
Use a flow adjustment length that is within the range noted in the above
chart. Using a length that is outside the lower limit adjustment range can
lead to oil leaks.
Use a flow adjustment length that is within the range noted in the above
chart. Using a length that is outside the lower limit adjustment range can
lead to oil leaks.
Key width
9.53
–0.015
0
Drain port (G3/4)
Pressure
adjusting screw
Pilot port
(Rc 1/4)
Flow rate adjusting screw
Discharge port
Suction port
161.6
200
8
90
153100
161.6
257
M12x20
1055
347 (MAX)
77.8
42.9
91
81
25
21
195
167
38.1
42.2
33
φ
0
–0.030
0
–0.15
φ
SAEJ518b-2
SAEJ518b-2
( 228.5)
φ
152.4
0
–0.05
φ
Flow rate
adjusting screw
Pilot port
(G1/4)
Pressure
adjusting screw
Drain port (G3/4)
Key width
11.113
–0.051
0
6
67
25
M12x20
10
100
268
316
35
50.8
88.9
362 (MAX)
Discharge port
Suction port
110
224.6
(265)
224.6
(265)
155
110
206
70
185
SAEJ518b-2
1/2
SAEJ518b-2
1/2
22
φ
165.1
–0.040
0
44.45
49.428
–0.051
0
0
–0.25
φ
φ
38
φ
Discharge port
Suction port
Key width
14
0
–0.018
Drain port (G1)
Pressure
adjusting screw
Pilot port (G1/4)
Flow rate
adjusting screw
(265)
194
76
245
88
12
560
74
333
411
50.8
88.9
25
M12x20
131
131
(265)
99
(224.6)
(224.6)
209
22
φ
SAEJ518b-3
SAEJ518b-2
1/2
52
φ
165.1
–0.040
0
50
53.5
+0.021
+0.008
φ
φ
–0.3
0
105
140
120
130
100
80
20
70
60
51
40
42
45
252015
Flow rate adjustment length mm
PZS-5B-130
PZS-4B-100
PZS-3B-70
Pump capacity q
cm
3
/rev
105
225
220
200
175
180
150
75
125
124
100
101
252015
Flow rate adjustment length mm
PZS-6B-220
PZS-6B-180
Pump capacity q
cm
3
/rev
Flow rate adjustment
length: R
End plug
Lock nut
Flow rate
adjusting screw
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 25
A
A-26
Piston Pumps
2-Pressure, 2-Flow Rate Control Type
PZS-3B-70N*Q*-10
PZS-4B-100N*Q*-10
PZS-5B-130N*Q*-10
Pump Volume Adjustable Range
Pump Model No.
Volume Adjustment Range cm
3
/rev
Factory Default
qL Setting (cm
3
/rev)
qH Note 1 qL Note 2
PZS-3B-70N*Q*-10 5 to 70 5 to 40 14
PZS-4B-100N*Q*-10 16 to 100 7 to 60 20
PZS-5B-130N*Q*-10 17 to 130 8 to 70 26
Note1: The setting range for pump maximum capacity qH depends on the qL setting.
Note2: Overall efficiency at a low flow rate is worse than at the maximum flow rate. Keep this in
mind when deciding on the drive motor capacity.
Drain port (G3/4)
P
H pressure
adjusting screw
q
H flow rate
adjusting screw
M10x16
Key width
7.94
0
–0.05
Discharge
port
SAEJ518b-1
1/2
Suction
port
SAEJ518b-1
1/4
PL pressure
adjusting screw
q
L flow rate
adjusting screw
8
85
31.75
35.33
127
58.7
30.2
223
128
164
128
85
136
18
548
34
411 (MAX)
127.5
172
279
17
177
30
φ
0
–0.051
0
–0.25
φ
0
–0.051
φ
PCD 181
φ
Lubrication port
M12x20
Drain port (G3/4)
P
H pressure adjusting screw
q
H flow rate
adjusting screw
Key width
9.53
–0.015
0
Discharge port
SAEJ518b-2
Suction port
SAEJ518b-2
P
L pressure adjusting screw
q
L flow rate
adjusting screw
452 (MAX)
197
129
100
90
320
257
8
55
10
152.4
42.2
38.1
77.8
42.9
153
161.6
200
161.6
21
81
91
( 228.5)
φ
0
–0.030
0
–0.15
φ
0
–0.05
φ
33
φ
Lubrication port
M12x20
Drain port (G3/4)
P
H pressure adjusting screw
q
H flow rate
adjusting screw
Key width
11.113
–0.051
0
Discharge port
Suction port
P
L pressure adjusting screw
q
L flow rate
adjusting screw
44.45
49.428
165.1
667
25
10
100
268
35
50.8
88.9
466 (MAX)
110
224.6
265
224.6
265
155
110
215
141
SAEJ518b-2
1/2
SAEJ518b-2
1/2
22
φ
0
–0.040
φ
38
φ
0
–0.05
φ
0
–0.25
Lubrication port
Discharge pressure MPa
P
L
q
H
q
L
PH
P-Q characteristics
cm
3
/rev
Pump capacity q
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 26
A
A-27
Piston Pumps
40 44 48 5236
40
50
60
70
80
90
100
Adjustment length: L2 (mm)
20 22 24 26 28 30 32 3416 1814
0
20
10
30
40
50
60
70
80
Adjustment length: L1 (mm)
90
100
110
120
130
140
32
Pump maximum capacity
adjustment length
Pump small capacity
adjustment length
PZS-5B
PZS-4B
PZS-3B
PZS-5B
PZS-4B
PZS-3B
qL (small capacity)
adjusting screw
q
H (maximum capacity)
adjusting screw
L1
L2
Pump capacity q
L
(cm
3
/rev)
Pump capacity q
L
(cm
3
/rev)
PZS Pump 2-Pressure 2-Flow Rate Control Flow Rate Adjustment Graph
•
Be sure to adjust the low flow rate first, and then adjust the maximum flow rate.
•
Remember that the maximum flow rate adjustment range (lower limit) changes in accordance with the low flow rate
adjustment. The maximum flow rate adjustment lower limit is equivalent to the low flow rate adjustment length (L1) plus
11mm.
•
Pump efficiency at a low flow rate is worse than at the maximum flow rate. Keep this in mind when deciding on the drive
motor capacity.
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 27
A
A-28
Piston Pumps
Solenoid Cutoff Control Type
PZS-3B-70R*S*-10
PZS-4B-100R*S*-10
PZS-6B-180R*S*-10
PZS-6B-220R*S*-10
❚
Using the installed solenoid valve so it is continuously conducting current can cause the coil surface to become hot.
Do not touch the surface of the coil directly with your hands.
Drain port (G3/4)
Pressure adjusting
screw
Flow rate
adjusting screw
M10x16
Key width
7.94
–0.05
0
Discharge port
SAEJ518b-1
1/2
Suction port
8
85
261
31.75
35.33
127
58.7
30.2
223
296 (MAX)
128
164
172
128
85
136
18
306 (MAX)
548
34
145
202
102.5
128
57
17
SAEJ518b-1
1/4
(PCD 181)
φ
0
–0.051
φ
30
φ
0
–0.051
φ
0
–0.25
Lubrication
port
Key width
9.53
–0.015
0
Drain port (G3/4)
Pressure adjusting screw
Flow rate
adjusting screw
Discharge port
Suction port
M12x20
222
129
161.6
200
152.4
8
90
153100
161.6
257
38.1
42.2
10
55
77.8
42.9
91
81
25
195
21
Lubrication
port
347 (MAX)
SAEJ518b-2
SAEJ518b-2
0
–0.05
φ
33
φ
0
–0.030
φ
0
–0.15
( 228.5)
φ
Flow rate
adjusting screw
Pressure adjusting screw
Drain port (G3/4)
Key width
11.113
0
-0.051
Discharge port
Suction port
M12x20
133
232
141
70
32.5
44.45
49.428
165.1
6
67
25
10
100
268
316
35
50.8
88.9
362 (MAX)
110
224.6
265
224.6
265
155
110
SAEJ518b-2
1/2
SAEJ518b-2
1/2
22
φ
0
–0.051
0
–0.25
φ
φ
0
–0.040
38
φ
Lubrication
port
Discharge port
Suction port
Key width
14
0
–0.018
Drain port (G1)
Pressure adjusting screw
Flow rate
adjusting screw
M12x20
147
156.5
256
(265)
194
76
245
88
12
50
165.1
53.5
560
74
333
410.5
50.8
88.9
25
131
131
(265)
99
(224.6)
(224.6)
52
22
φ
φ
SAEJ518b-3
SAEJ518b-2
1/2
+0.021
+0.008
φ
0
–0.040
φ
Lubrication
port
PZS-5B-130R*S*-10
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 28
A
A-29
Piston Pumps
2-Pressure Control Type
PZS-3B-70W*S
PZS-4B-100W*S*-10
PZS-5B-130W*S*-10
PZS-6B-180W*S*-10
PZS-6B-220W*S*-10
❚
Using the installed solenoid valve so it is continuously conducting current can cause the coil surface to become hot.
Do not touch the surface of the coil directly with your hands.
Drain port (G3/4)
Flow rate
adjusting screw
M10x16
Key width
7.94
0
–0.05
Discharge port
SAEJ518b-1
1/2
Suction port
P
L pressure
adjusting screw
P
H pressure
adjusting screw
242
8
85
261
31.75
35.33
127
58.7
30.2
223
296 (MAX)
128
164
128
85
136
18
306 (MAX)
548
34
(PCD 181)
145
102.5
128
57
30
17
SAEJ518b-1
1/4
φ
φ
0
–0.051
0
–0.25
φ
φ
0
–0.051
Lubrication
port
172
Key width
9.53
–0.015
0
Drain port (G3/4)
Flow rate
adjusting screw
Discharge port
SAEJ518b-2
Suction port
SAEJ518b-2
M12x20
P
H pressure adjusting screw
P
L pressure adjusting screw
33
262
129
161.6
200
152.4
8
90
153
100
161.6
257
38.1
42.2
1055
347 (MAX)
77.8
42.9
91
( 228.5)
81
25
21
φ
φ
φ
φ
0
–0.15
0
–0.030
0
–0.05
Lubrication
port
Flow rate
adjusting screw
Drain port (G3/4)
Key width
11.113
–0.051
0
Discharge port
Suction port
SAEJ518b-2
1/2
SAEJ518b-2
1/2
M12x20
P
H pressure
adjusting screw
P
L pressure
adjusting screw
32.5
44.45
49.428
165.1
667
25
10
100
268
316
35
50.8
88.9
362 (MAX)
272
133
141
70
110
224.6
(265)
224.6
(265)
155
110
22
Lubrication
port
φ
0
–0.25
0
–0.051
0
–0.040
φ
φ
Discharge port
Suction port
Key width
14
0
–0.018
Drain port (G3/4)
Flow rate
adjusting screw
M12x20
P
L pressure
adjusting screw
P
H pressure
adjusting screw
147
156.5
(265)
194
76
245
88
12
50
165.1
53.5
560
74
333
410.5
50.8
88.9
25
131
131
(265)
99
(224.6)
(224.6)
22
296
52
φ
SAEJ518b-3
SAEJ518b-2
1/2
φ
0
–0.040
+0.021
φ
+0.008
φ
Lubrication
port
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 29
A
A-30
Piston Pumps
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
20
30
10
0
40
50
60
100
110
120
130
50
60
70
80
90
100
1800m
in
–1
1500min
–1
Overall efficiency
η
Volume efficiency
ηv
1500m
in
–1
1800min
–
1
General Performance
Lin
Lin
Q
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
2
0
8
6
4
1800min
–1
1500min
–1
Axial Input at Full Cutoff
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
60
80
70
1800min
–1
1500min
–1
Noise Characteristics
DR
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
20
0
40
60
0
5
10
100
120
140
1800m
in
–1
1500min
–1
1500min
–1
1800min
–
1
Pressure - Flow Rate
Characteristics
Q
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
Q=126
r/min
Q=100
r/min
Q=80
r/min
Q=60
r/min
30
40
20
10
50
60
Axial input
Efficiency
η
,
η
v%
Axial input at full cutoff
kW
Discharge rate
Q
r
/min
Discharge rate
Q
r
/min
Input
Lin kW
Input
Lin kW
Axial input kW
Drain rate
DR
r
/min
Noise Level dB(A)
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
20
0
40
60
80
140
160
180
50
60
70
80
90
100
1800min
–
1
1500min
–1
Overall efficiency
η
Volume efficiency
ηv
1500min
–
1
1800min
–1
General Performance
Lin
Lin
Q
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
2
0
8
6
4
1800min
–1
1500min
–
1
Axial input at full cutoff
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
60
80
70
1800min
–
1
1500min
–
1
Noise Characteristics
DR
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
20
0
40
60
80
0
5
10
100
140
180
1800min
–
1
1500min
–1
1500m
in
–1
1800m
in
–1
Pressure - Flow Rate
Characteristics
Q
Discharge pressure P MPa{kgf/cm
2
}
071421 28
{70.4} {143} {214} {286}
Q=60
r/min
Q=100
r/min
Q=180
r/min
Q=140
r/min
60
80
40
20
100
Axial input
Efficiency
η
,
η
v%
Discharge rate
Q
r
/min
Discharge rate
Q
r
/min
Input
Lin kW
Input
Lin kW
Drain rate
DR
r
/min
Noise Level dB(A)
Axial input kW
Axial input at full cutoff
kW
Performance Curves
Typical Characteristics at a Hydraulic Operating Fluid Kinematic Viscosity of 46 mm
2
/s
PZS-3B-70N*-10
Typical Characteristics at a Hydraulic Operating Fluid Kinematic Viscosity of 46 mm
2
/sPZS-4B-100N*-10
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 30
A
A-31
Piston Pumps
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
40
60
20
0
80
100
120
180
200
220
240
50
60
70
80
90
100
1800min
–
1
1500min
–1
Overall efficiency
η
Volume efficiency
ηv
1500m
in
–1
1800min
–
1
General Performance
Lin
Q
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
60
80
70
1800min
–
1
1500min
–1
Noise Characteristics
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
Q=234
r/min
Q=200
r/min
Q=150
r/min
Q=100
r/min
60
80
40
20
100
120
Axial input
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{71} {143} {214} {255}
40
0
80
120
0
5
10
160
200
240
1800m
in
–
1
1500min
–1
1500m
in
–
1
1800min
–
1
Pressure – Flow Rate
Characteristics
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{71} {143} {214} {255}
2
0
12
14
10
8
6
4
Axial input at full cutoff
1800min
–1
1500min
–1
Efficiency
η
,
η
v%
Discharge rate
Q
r
/min
Discharge rate
Q
r
/min
Drain rate
DR
r
/min
Input
Lin kW
Input
Lin kW
Axial input kW
Axial input at full cutoff
kW
Noise Level dB(A)
Typical Characteristics at a Hydraulic Operating Fluid Kinematic Viscosity of 46 mm
2
/sPZS-5B-130N*-10
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
40
60
20
0
80
100
120
140
240
270
330
300
50
60
70
80
90
100
1800min
–
1
1500min
–1
Overall efficiency
η
Volume efficiency
ηv
1500min
–
1
1800min
–1
General Performance
Lin
Q
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
2
0
12
14
16
10
8
6
4
1800min
–1
1500min
–1
Axial input at full cutoff
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214}{255}
60
80
70
1800min
–
1
1500min
–
1
Noise Characteristics
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
Q=324
r/min
Q=250
r/min
Q=200
r/min
Q=150
r/min
60
100
80
40
20
140
120
Axial input
Efficiency
η
,
η
v%
Discharge rate
Q
r
/min
Discharge rate
Q
r
/min
Drain rate
DR
r
/min
Input
Lin kW
Input
Lin kW
Axial input kW
Axial input at full cutoff
kW
Noise Level dB(A)
Lin
DR
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{71} {143} {214} {255}
40
0
80
120
160
0
5
10
210
270
330
1500min
–
1
Pressure – Flow Rate
Characteristics
Q
1800min
–1
1800min
–
1
1500min
–1
Typical Characteristics at a Hydraulic Operating Fluid Kinematic Viscosity of 46 mm
2
/sPZS-6B-180N*-10
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 31
A
A-32
Piston Pumps
Typical Characteristics at a Hydraulic Operating Fluid Kinematic Viscosity of 46 mm
2
/sPZS-6B-220N*-10
Cross-sectional Drawing
PZS-3B-70N*-10
PZS-4B-100N*-10
PZS-6B-**N*-10
List of Sealing Parts
Part No.
Part Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Body
Case
Shaft
Cylinder barrel
Valve plate
Piston
Shoe
Shoe holder
Barrel holder
Swash plate
Thrust bush
Seal holder
Thrust plate
Spring C
Spring S
Control piston
End plug
Guide screw
Spring holder
Retainer
Needle
Key
Plug
Pin
Orifice
Nut
Ball bearing
Part No.
Part Name
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Needle bearing
Oil seal
Snap ring
Snap ring
Snap ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
Backup ring
Orifice
Flat philips head screw
Plug
Pin
Bolt
Plug
O-ring
Plate
Washer
Bolt
Eye bolt
Part
No.
Name
Product Number
Remarks
PZS-3B Q'ty
PZS-4B
Q'ty PZS-6B Q'ty
29 Oil seal TCN-456812 1 TCN-507212 1 TCN-659013 1 NOK
33 O-ring 1B-G95 1 1B-G105 1 1B-G135 1 JIS B 2401
34 O-ring 1B-G130 1 1B-G155 1 1B-G200 1
″
35 O-ring 1B-G50 1 1B-G50 1 1B-G65 1
″
36 O-ring 1B-P34 1 1B-P36 1 1B-P41 1
″
37 O-ring 1B-P12 1 1B-P16 1 1B-P16 1
″
38 O-ring 1B-P21 2 1B-P21 3 1B-P21 3
″
39 O-ring Note 1 1 1B-P9 1 1B-P10 1
″
40 O-ring 1B-P8 5 1B-P8 5 1B-P8 8
″
41 Backup ring T2-P12 1 T2-P16 1 T2-P16 1 JIS B 2407
48 O-ring Note 1 1 1B-G85 1 1B-G85 1 JIS B 2401
Note 1: Contact your agent about this type of O-ring.
Discharge pressure P MPa{kgf/cm
2
}
07 1421 25
{70.4} {143} {214} {255}
40
60
20
0
80
100
120
140
240
270
330
300
50
60
70
80
90
100
Overall efficiency
η
Volume efficiency
ηv
1500min
–
1
1200min
–
1
General Performance
Lin
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
2
8
10
12
14
16
6
4
1500min
–
1
1200min
–1
Axial Input at Deadhead
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
60
80
70
1200min
–
1
1500min
–
1
Noise Characteristics
1500min
–1
1200min
–1
Discharge rate Q
Input
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{70.4} {143} {214} {255}
Q=330
r/min
Q=250
r/min
Q=200
r/min
Q=150
r/min
80
100
40
60
20
10
120
160
140
Axial input
Efficiency
η
,
η
v%
Discharge rate
Q
r
/min
Discharge rate
Q
r
/min
Drain rate
DR
r
/min
Input
Lin kW
Input
Lin kW
Axial input kW
Axial input at Deadhead kW
Noise Level dB(A)
Lin
DR
Discharge pressure P MPa{kgf/cm
2
}
071421 25
{71.4} {143} {214} {255}
40
0
80
120
160
0
5
10
210
270
330
1500min
–1
1200min
–1
1500min
–
1
1200m
in
–1
Pressure – Flow Rate
Characteristics
Q
Discharge rate
Drain rate
Input
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 32
A
A-33
Piston Pumps
PZS-5B-130N*-10
PZS-5B
Pressure Compensator
Part No.
Part Name
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
Ball bearing
Needle bearing
Oil seal
Snap ring
Snap ring
Snap ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
Backup ring
Bolt
Flat philips head screw
Plug
Plug
Plug
Orifice
O-ring
Plate
Washer
Bolt
Plug
Eye bolt
Part No.
Part Name
1
2
3
4
5
6
7
8
9
10
10-1
10-2
10-3
10-4
10-5
11
Valve body
Spool
Spring guide
Sprint bearing
Spring
Retainer
Needle valve
Valve seat
Spring
Adjustment screw kit
Adjustment screw
Nut
O-ring
Nut
Spring pin
Retainer
Part No.
Part Name
12
13
14
15
16
17
18
19
20
21
22
Collar
Plug
Plug
Nut
Socket head screw
O-ring
O-ring
O-ring
O-ring
O-ring
Plug
Parts marked by an asterisk "*" are not available on the market. Consult your agent.
Part No.
Name Q'ty Size
Remarks
13 Gasket 1 * 3 Bond
30 Oil seal 1 TCN-608212 N. O. K
34 O-ring 1 1B-G125 JIS B 2401
35 O-ring 2 1B-P21 JIS B 2401
36 O-ring 1 1B-P16 JIS B 2401
37 O-ring 1 1B-P42 JIS B 2401
38 O-ring 1 1B-P14 JIS B 2401
39 O-ring 5 1B-P8 JIS B 2401
40 O-ring 2 1B-P7 JIS B 2401
41 Backup ring 1 T2-P16 JIS B 2407
48 O-ring 1 1B-G85 JIS B 2401
Part No.
Part Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Body
Case
Shaft
Cylinder barrel
Valve plate
Piston
Shoe
Shoe holder
Barrel holder
Swash plate
Thrust plate
Seal holder
Gasket
Spring C
Spring S
Control piston
End plug
Guide screw
Thrust bush
Spring holder
Retainer
Needle
Key
Plug
Pin
Connector
Nut
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 33
PZM-*-10 IHM-55-10
A
A-34
Piston Pumps
List of Sealing Parts
Screw In Type
Welded Type
Foot Mounting Installation Measurement Chart
Piping Flange Kit
Foot Mounting
Kit Model No.
Applicable Pump
Model No.
Accessories Measurements (mm)
Bolt Q'ty
Washer
Q'ty A B C E F G H (I)
PZM-3-10 PZS-3B
TH-16×40
4 WP-16 4 295.3
334
152.4
1
−
139.7 203 104.5
PZM-4-10 PZS-4B
TB-20×45
4 WP-20 4 290
334
160
1
−
135 198 95
IHM-55-10 PZS-5B
,
6B
TH-20×50
4 WS-B-20 4 330
370
200
1
125 125 300 40
Foot Mounting
Kit Model No.
Measurements (mm)
Weight
kg
(J) K L M N P Q R (S) T
φ
D
φ
d1
φ
d2
φ
d4
PZM-3-10 60 25 128 128 25 M16 259 - 44.5 61 127 35 18
φ186
13.5
PZM-4-10 62 28 161.6 161.6 25 M20 270 220 33 62 152.4 34 18
φ
152.4
18.0
IHM-55-10
70 (Note)
30 224.6 224.6 30 M20 340 275 20 90 165.1 34 18
φ140
32.0
Note The IHM-55-10 (J) dimension (70) is the value for the PZS-5B. This dimension becomes 58 in the case of the PZS-6B.
The IHM-55-10 (I) dimension (40) is the value for the PZS-5B. This dimension becomes 28 in the case of the PZS-6B.
See the IHM-45-10 on pages B-36 and C-12 to see what the PZM-3-10 looks like.
Screw In Type
Flange Kit model No.
Applicable Pump
Model No.
IN Flange
Flange Part No.
Bolt
Washer O-ring
PJF-10300T PZS-3B IH03J-100120 1
TH-12×55
4 WS-B-12 4
1B-G50 1
PJF-10400T PZS-4B IH03J-100160 1
TH-12×60
4 WS-B-12 4
1B-G60 1
PJF-10500T PZS-5B IH03J-100200 1
TH-12×65
4 WS-B-12 4
1B-G75 1
PJF-10600T PZS-6B IH03J-100240 1
TH-16×75
4 WS-B-16 4
1B-G85 1
Welded Type
Flange Kit model No.
Applicable Pump
Model No.
IN Flange
Flange Part No.
Bolt
Washer O-ring
PJF-10300E PZS-3B IH03J-200120 1
TH-12×55
4 WS-B-12 4
1B-G50 1
PJF-10400E PZS-4B IH03J-200160 1
TH-12×60
4 WS-B-12 4
1B-G60 1
PJF-10500E PZS-5B IH03J-200200 1
TH-12×75
4 WS-B-12 4
1B-G75 1
PJF-10600E PZS-6B IH03J-200240 1
TH-16×75
4 WS-B-16 4
1B-G85 1
OUT Flange
Plug
Flange Part No.
Bolt
Washer O-ring
IH03J-100100 1
TH-10×55
4 WS-B-10 4
1B-G40 1 TPHA-1/4 1
IH03J-100160 1
TH-12×60
4 WS-B-12 4
1B-G60 1
−
IH03J-100200 1
TH-12×65
4 WS-B-12 4
1B-G75 1
−
IH03J-100200 1
TH-12×65
4 WS-B-12 4
1B-G75 1
−
OUT Flange
Plug
Flange Part No.
Bolt
Washer O-ring
IH03J-200100 1
TH-10×55
4 WS-B-10 4
1B-G40 1 TPHA-1/4 1
IH03J-200160 1
TH-12×60
4 WS-B-12 4
1B-G60 1
−
IH03J-200200 1
TH-12×65
4 WS-B-12 4
1B-G75 1
−
IH03J-200200 1
TH-12×65
4 WS-B-12 4
1B-G75 1
−
• See page C-11 for dimensions.
• O-ring 1B-** refers to JIS B2401-1B-**.
• See page C-11 for details on tightening torque.
Foot Mounting Kit
4 to P
L
R
G
H
S
TT
A
B
C
K
J
I
d2
d1
φ
φ
N
E
Q
M
D
φ
4-P
L
R
d1
d2
E
N
T
T
A
B
M
Q
C
G
F
S
H
K
(J)
(I)
D
d
4
φ
φ
φ
φ
Part
No.
Name
Part Number
Remarks
PZS-3B, 4B Q'ty PZS-5B, 6B Q'ty
10-3 O-ring 1B-P10A 1 1B-P10A 1 JIS B 2401
17 O-ring 1B-P8 1 1B-P11 2
″
18 O-ring 1B-P9 4 1B-P9 5
″
19 O-ring 1B-P5 1 1B-P14 1
″
20 O-ring 1B-P12 1 1B-P22 1
″
21 O-ring 1B-P14 1 1B-P14 1
″
A_Piston(P22-34)_E.q 03.11.20 0:44 PM Page 34