TECHNICAL CATALOG
MK04
COMPACT MOTORS
2 04/02/2020
Compact motors MK04 POCLAIN HYDRAULICS
Methodology :
This document is intended for manufacturers of machines that incorporate Poclain Hydraulics products. It describes the technical characteristics
of Poclain Hydraulics products and specifies installation conditions that will ensure optimum operation.
This document includes important comments concerning safety. They are indicated in the following way:
This document also includes essential operating instructions for the product and general information. These are indicated in the following way:
The views in this document are created using metric standards.
The dimensional data is given in mm and in inches (inches are given in brackets in italic)
Safety comment.
Essential instructions.
General information .
Information on the model number.
Weight of component without oil.
Volume of oil.
Units.
Tightening torque.
Screws.
Information intended for Poclain-Hydraulics personnel.
CONTENT
Options Characteristics Model code
04/02/2020 3
POCLAIN HYDRAULICS Compact motors MK04
MODEL CODE 5
CHARACTERISTICS 6
Dimensions for standard 1-displacement motor 6
Load curves 7
Chassis mounting 8
Hydraulic connections 8
Immobilisator 9
OPTIONS 10
4 04/02/2020
Compact motors MK04 POCLAIN HYDRAULICS
8
272 [16,6] 432 [220] 120
0
340 [20,7] 541 [275] 110
2
408 [24,9] 649 [330] 100
400 [5 800]18 [24]
Max.powerTheoretical
torque
at 100 bar at 1000 PSI
Nm [lb.ft]
Max.
speed
rev/min
Max.
pressure
bar [PSI]
cm³/rev [cu.in/rev.]
kW [HP]
First displacement
POCLAIN HYDRAULICS Compact motors MK04
04/02/2020 5
Options Characteristics Model code
MODEL CODE
11 3310
8
272 [16,6]
0
340 [20,7]
2
408 [24,9]
cm³/rev [cu.in/rev.]
1-Displacement 1
Without fixation
1
ISO 9974-1 Connections 4
ISO 11926-1 Connections
A
A
Hollow shaft
2
T4 Speed sensor installed
3
Mechanical brake release
8
Predisposition for speed sensor
1
M threaded holes
3
Short support
3
Flange close to shaft
Without immobilisator
immobilisator
1
C
12
D
312
F
312
P
34 12
S
3456
A04
K04
04
KM
6 04/02/2020
Compact motors MK04 POCLAIN HYDRAULICS
CHARACTERISTICS
Rotating retaining screws
1
C
12
D
312
F
312
P
34 12
S
3456
04
KM
30 kg [66 lb] 31 kg [68 lb]
0,35 L [21 cu.in] 0,35 L [21 cu.in]
L
X
1
R
1 - X
R - L
Ø100 [3.94 dia.]
5 x M16
14.5 [0.57]
53.7 [2.11]
Ø196
[7.72 dia.]
N.m [lb.ft]
5 x M16 x 2 12,9 355 [262]
Classe
(*) The tightening torques are given for the indicated loads.
04/02/2020 7
Options Characteristics Model code
POCLAIN HYDRAULICS Compact motors MK04
Load curves
Efficiency
Permissible radial loads Service life of bearings
Test conditions : Test conditions :
Static : 0 rev/min 0 bar [0 PSI]
L : Millions B10 revolutions at 150 bars (average
pressure), with 25 cSt fluid, code 0 displacement,
without axial load.
Dynamic : 0 rev/min, code 2 displacement, without axial
load at max. torque
The service life of the components is influenced by the
pressure.You must check that the combination of forces applied
(Axial load / Radial load) is compatible with the permissible loads
for the components, and that the resulting service lives of these
components complies with the application's specifications. For an
accurate calculation, consult your Poclain Hydraulics application
engineer.
Overall efficiency Actual output torque
Average values given for guidance for code
2 displacement after 100 hours of
operation with HV46 hydraulic fluid at 50°C
[122°F].
For a precise calculation, consult your Poclain Hydraulics
application engineer.
kN
in
lbf
mm
3310
1234
P
400
350
300
250
100
200
150
Load
8 04/02/2020
Compact motors MK04 POCLAIN HYDRAULICS
Chassis mounting
Hydraulic connections
Take care over the immediate environment of the
connections.
Do not put either a check valve or a poppet valve on the pilot lines (parking
brake and displacement change) between the charge pump and the pilot
valve. Do not use a piloting valve with integrated check valve.
Mounting
(2)
Mounting
(1)
mm
[in]
mm
[in]
µm
[µin]
N.m
[lb.ft]
204,9
[8,07]
0,2
[0,01]
12,5
[0,49]
7 x M12 x1.75 12,9 145
[107]
ØM
(1)(2)
SRa V
Class of
screw
(1) + 0.3 [+0.012]
+ 0.2 [+0.008]
(2) + 0.4 [+0.016]
+ 0.3 [+0.012]
R,L 1 X
A SAEJ514 ISO 11 926-1
3/4" - 16 UNF 9/16" - 18 UNF 1/2" - 20 UNF
4
DIN 3 852
NFE 48 050
ISO 9 974-1
M22 x 1.5 M16 x 1.5 M14 x 1.5
112 123456
S
1234
PDC
F
123
Power supply
Control of
brake
DrainageStandards
Old
standards
04
KM
04/02/2020 9
Options Characteristics Model code
POCLAIN HYDRAULICS Compact motors MK04
Immobilisator
Principle:
This static brake consists of two toothed parts, one mobile (A), and the other fixed (B). When stationary, with no pressure, a spring (C)
pushes the mobile part to mesh with the teeth of the cylinder block to immobilise it.
To find the connections’ tightening torques, see the brochure
“Installation guide” N° 801478197L.
You are strongly advised to use the fluids specified in brochure
“Installation guide” N° 801478197L.
K04
12
F
3
04
KM
3 170 Nm [2 338 lb.ft]
17 bar [246,6 PSI]
30 bar [435,1 PSI]
23 cm ³ [1,4 cu.in]
14 cm ³ [0,8 cu.in]
Brake release capacity
Capacity
Maximum brake release pressure
Minimum brake release pressure
Parking brake torque with 0 bars in the housing (new brake)
10 04/02/2020
Compact motors MK04 POCLAIN HYDRAULICS
OPTIONS
You can accumulate more than one optional part. Consult your
Poclain Hydraulics sales engineer.
1
C
12
D
312
P
34 12
S
3456
04
KM
2 - 8 - Installed speed sensor or predisposition
Look at the "Mobile Electronic" N° A01889D technical
catalogue for the sensor specifications and its
connection.
To install the sensor, see the ''Installation guide''
brochure No. 801478197L.
Designation
T4 Speed sensor installed
2
Predisposition for speed sensor
8
A-A
Max. length Y=
Standard number of pulses per revolution=
12.5
64
12
F
3
04/02/2020 11
Options Characteristics Model code
POCLAIN HYDRAULICS Compact motors MK04
3 - Mechanical brake-release
A - Hollow shaft
Mounting bolt for high speed motor
Refer to the "Installation guide" catalogue, N° 801478197L.
N.m [lb.ft]
4 x M8 x 1.25 10.9 295 [218]
Classe
(*) The tightening torques are given for the indicated loads.
www.poclain-hydraulics.com
04/02/2020
801 578 135P
801 578 146B
801 578 157N
801 578 168A
801 578 179M
A51812S
Poclain Hydraulics reserves the right to make any modifications it deems necessary to the products described in this document
without prior notification.The information contained in this document must be confirmed by Poclain Hydraulics before any order is
submitted.
Illustrations are not binding.
The Poclain Hydraulics brand is the property of Poclain Hydraulics S.A.