Liebherr DMVA Hydraulic Axial Piston Motor

DMVA Liebherr Hydraulic Axial Piston Motor

Liebherr DMVA Hydraulic Axial Piston Motor

Rexton Hydraulic is a wholesale supplier and repair service provider of Liebherr DMVA Hydraulic Axial Piston Motor series including all sizes, models and specifications. Liebherr DMVA is constructed as swashplates for open and closed circuits and specially designed for mobile machineries.

Variable Displacement Motor, Flange Mounted Motor, Open / Closed Circuit
Series DMVA
Model Sizes : DMVA108 / DMVA165 / DMVA215 / DMVA370
Nominal Pressure 450 Bar 6,526.70 psi
Maximum Pressure 500 Bar 7,251.89 psi

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Description
Technical Specifications
Product Models
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Liebherr DMVA Hydraulic Axial Piston Motors are designed as swashplates for open and closed circuits, that is specially constructed for mobile machinery . It has a very high power density and the inverse drive with a swivel angle of 22° is very efficient, making it ideal for applications that require a variable displacement to hydraulic motor.

These are also called flanged variable displacement double motors, available in nominal sizes from 108 to 370. The nominal pressure of the units is 6,527 psi (450 bar) and the maximum pressure is 7,252 psi (500 bar) absolute.

The through-drive capacity can be used for mounting a brake or tandem units (axial piston multi-circuit motor). Liebherr DMVA series is available with the most common controls, features an impressive performance and efficiency.

Technical Specifications

Specifications

Normal size			108	165	215	370
Nominal pressure [pN] [bar]			450	450	450	450
Maximum pressure [pmax] [bar]			500	500	500	500
Displacement volume	Vg _max	cm³	107.7	167.8	216.5	371.2
Displacement volume	Vg _min	cm³	0 – 80% of Vg max, value specified in [cm3/rev] Other values upon request
Displacement flow at nmax	qv_max	1/min	361	503	584	891
Max. speed at Vg max and Δp* = 430 bar	n_max	rpm	3350	3000	2700	2400
Max. speed at Vg max = 0.65 and Δp = 200 bar	n_max	rpm	5125	4590	4100	3000
Output torque at Vg max and Δp* = 430 bar	M_max	Nm	737	1149	1481	2243
Torq constant at Vg max	MK	Nm/bar	1714	2.67	3446	5908
Output power at qvmax and Δp* = 430 bar	P_max	kW	259	361	419	564
Torsional rigidity	Nm/rad * 10³		266	353	511	961
Driving gear moment of inertia	J_TW	kgm²	0015	0.0313	0047	0.13
Weight (approx.)	m	kg	70	80	120	195