MI High Torque and Radial Pistons

Performance

Max. Pressure
bar [PSI]
Displacement range
cm 3 /rev [cu.in/rev]
Max. Torque*
N.m [lbf.ft]
Max. Speed
RPM
Max. Power
kW [HP]
MI88450
[6,527]
7 000 - 10 400
[426.9 - 634.3]
74 484
[54,936]
140265
[355]
MI250450
[6,527]
17 500 - 30 000
[1,037 - 1,831]
167 112
[123,255]
100500
[671]

*Max. theoretical torque (N.m) : 1/(20 π) x max. displacement (cm 3 /rev.) x max. pressure (bar)

Dimensions

MI88
(splined)
MI250
(splined)
MI250
(shrink disc)
L1mm
[in]
631,5
[24.87]
950,8
[37.43]
925,3
[36.43]
A dia.
max.
mm
[in]
500
[19.68]
631
[24.84]
631
[24.84]
Weight
max.
kg
[lb]
352
[776]
920
[2,028]
940
[2,070]

Male splined shaft motor

Shrink disc motor

Shaft types

Female splinesMale splinesShrink discHollow shaft
MI250MI88MI250MI250MI250
NormDIN 5480DIN 5480DIN 5480--
Module555--
Number of teeth383138--
Nominal diametermm
[in]
200
[7.87]
165
[6.50]
190
[7.48]
-100
[3.94]
External diametermm
[in]
-169
[6.65]
200
[7.87]
280
[11.00]
-
Internal diametermm
[in]
---200
[7.87]
-
Female splined shaft with circular fixationShaft for shrink disc with circular fixationFemale splined shaft with lugs fixationMale splined shaft with circular fixationHollow shaft

Flanged valve for MI250

This valve, which is directly flanged on the MI250, will offer enhanced protection of the motor against possible cavitation during operation, by ensuring sufficient back pressure on the motor (additional flow provided by the accumulator).
This valve is available with 2 positions for the accumulator (0o or 90o).

Max. operating
pressure
Precharge
pressure
VolumeHydraulic schematics
bar [PSI]bar [PSI]L [G]
Valve450 [6,526]-170 [45]
Accumulator-12 [174]2 [0.53]

2 or 4 DN38 ports with support surface allowing for direct mounting of valves

Torque arms and shrink discs

To ease the integration of our motors into your machines, Poclain Hydraulics can supply motors with adapted torque arms and shrink discs.

MI250 motor with torque arm

MI250 motor with shrink discs

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