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Martikomerc Products
Variable piston pumps

GR/ SPV 20 - 27 series


A hydrostatic transmissions consists of a hydraulic pump and motor, typically used as the main drive system on modern construction and many other industrial equipments.


Axial piston variable displacement pumps are of swash plate construction with variable flow capability suitable for hydrostatic transmissions with closed loop circuit. The flow rate is proportional to the pump's driven speed and displacement which in turn is determined by the swash plate angle. The latter is infinitely adjustable between zero and maximum displacement. Flow direction is revered by tilting the swash plate to the opposite direction side of the neutral or zero displacement position.

POWER SYSTEM FOR HEAVY DUTY APPLICATIONS

SERIE 20
This heavy duty family offers:
- eight sizes each of pumps and motor,
- a wide range of mechanical, hydraulic and electrical control.
CLOSED CIRCUIT

Ordering code and type designation

Spare parts list and exploded view

   Sizes
GR

Displacement
[ccm/rev]
Nominal pressure [MPa] Max. Speed
[Rpm]
Power
Pe [kW]
Weight
[kg]
033 33.3 35 3 590 69.7 45
052 51.6 35 3 100 93.3 55
070 69.8 35 2 810 114.4 63
089 89.0 35 2 590 134.4 78
119 118.7 35 2 350 162.7 124
166 165.8 35 2 100 203.1 164
227 227.3 35 1 900 232.2 212
334 334.4 35 1 670 325.1 270