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DMFA Short Description

DMFA Short Description

DMFA Short Description

Product catalog summary
Overview: The Liebherr DMFA series axial piston motors are designed for use in mobile machinery operating in harsh environments. These motors are suitable for both open and closed circuits and feature a swashplate design. They are known for their high efficiency and power density, making them ideal for applications requiring constant displacement to hydraulic motors.
Specifications:
  • Nominal Size: 355
  • Nominal Pressure: 5,802 psi (400 bar)
  • Maximum Pressure: 6,527 psi (450 bar)
  • Displacement: 21.70 inch³ (355.6 cm³)
  • Maximum Speed: 2,400 rpm at Vg max and Δp = 5,511 psi (380 bar)
  • Displacement Flow: 225 US.liq.gal/min (853 l/min)
  • Output Power: 725 hp (541 kW) at Δp = 5,511 psi (380 bar)
  • Output Torque: 1,585 lbf·ft (2,149 Nm) at Δp = 5,511 psi (380 bar)
Features:
  • Flange-mounted constant motors
  • Optional through-drive for brake or tandem motor mounting
  • Speed sensor available on request
  • Flushing valve integrated in the connecting plate
  • External brake valve and multi-disc brake options
Technical Data:
  • Product Dimensions: Various dimensions provided, with installation drawing available upon request
  • Shaft Profile: DIN 5480 involute gear hub profile
  • Connection Details: SAE J518 pressure connection, ISO 9974-1 leakage oil connection
Type Code: The type code provides detailed configuration options, including motor type, circuit type, nominal size, control options, design, rotation direction, mounting flange, shaft end, connections, accessories, through drive, valve options, and sensor availability.
Company Information: Liebherr-Components AG offers a wide range of solutions in mechanical, hydraulic, electric, and electronic drive and control technology. The company operates ten production sites globally, ensuring high-quality standards and providing comprehensive customer service solutions.
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Catalog excerpts

DMFA Short Description-1

Short description Axial piston motor DMFA --- The Liebherr axial piston motors in the DMFA series are designed as swashplates for open and closed circuits and were specially developed for use in mobile machinery in harsh environments. The inverse drive with a swivel angle of 22° is very efficient and has a very high power density, making it ideal for applications that require a constant displacement to hydraulic motor. The flange-mounted constant motors are available in nominal size 355. The nominal pressure of the units is 5,802 psi (400 bar) and the maximum pressure is 6,527 psi (450 bar) absolute. The optional through-drive can be used for mounting a brake or tandem motor. Speed sensor or preparation for speed sensor available on request. Valid for: DMFA 355 involute gear hub profile Features: Axial piston motor (constant) D series Open and closed circuit Pressure range: Nominal pressure pN = 5,802 psi (400 bar) Maximum pressure pmax = 6,527 psi (450 bar)

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DMFA Short Description-2

DMFA constant displacement, open and closed circuits, nominal pressure 5,802 psi (400 bar), maximum pressure 6,527 psi (450 bar) Product dimensions [inch (mm)]* 355 Splined shaft profile (internal gear) DIN 5480 involute gear hub profile W60 x 2 x 28 Centering diameter A, h8 tolerance fit 7.87 (200) Connection diameter, screws B 6.93 (176) Splined shaft length D 3.07 (78) Connection length, SAE pressure flange E 13.84 (351.5) Leakage oil connection ISO 9974-1 M33 x 2 * The dimensions can vary depending on the configuration and additional equipment (installation drawing available upon request)....

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DMFA Short Description-3

D series / motor/fixed / flange-mounted DMFA

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DMFA Short Description-4

Large diameter bearings Human-machine interfaces and gateways Injection systems Axial piston hydraulics Gearboxes and rope winches Control electronics and sensors Electrical machines Power electronics From A to Z, the components division of the Liebherr Group offers a broad range of solutions for mechanical, hydraulic, electric and electronic drive and control technology. The efficient components and systems are produced at a total of ten production sites around the world to the highest standards of quality. Central contacts for all product lines are available to customers at Liebherr Component...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.