MMF025 MMF035 MMF044 MMF046 Fixed Displacement Axial Piston Motor

Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of mmf025 mmf035 mmf044 mmf046 fixed displacement axial piston motor in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.

 

Specification Item	Details
Model Number	MMF025, MMF035, MMF044, MMF046
Motor Type	Fixed Displacement Axial Piston Hydraulic Motor
Displacement	25 / 35 / 44 / 46 cc/rev
Rated Pressure	250 bar
Peak Pressure	310 bar
Max Rotation Speed	2500‑3200 rpm (model dependent)
Rotation	Bi‑directional
Housing Material	High‑strength cast iron
Working Fluid	Standard hydraulic oil
Core Application	Marine winch, ship deck machinery, offshore deck equipment
Replacement Reference	Drop‑in replacement for Sauer Danfoss MMF series
Main Features	Marine‑duty, compact structure, high efficiency, stable torque output
Applicable Industries	Shipbuilding, offshore, marine vessel equipment

MMF025, MMF035, MMF044, MMF046 are fixed‑displacement axial piston hydraulic motors widely deployed for marine winch and ship deck machinery drive systems. This series is interchangeable with Sauer Danfoss Series 40 MMF units, built to deliver stable torque output under heavy‑duty marine and offshore working environments.

Available in 25 cc/rev, 35 cc/rev, 44 cc/rev and 46 cc/rev displacements, these bi‑directional piston motors feature high‑pressure performance, compact power‑dense housing and robust cast‑iron construction, perfectly suited for continuous cyclic operation on vessel deck winches, anchor handling equipment and offshore deck actuators.

Engineered as direct drop‑in replacement motors for original MMF series, they keep identical mounting dimensions, shaft interface and port configurations, which simplifies retrofit, onboard repair and spare‑part renewal for existing marine hydraulic systems. Our MMF series hydraulic motors undergo strict factory testing before shipment to guarantee reliable long‑time performance against humidity, vibration and variable marine operating conditions.

Ideal for shipyards, offshore service companies, marine equipment operators and hydraulic system integrators worldwide, this product line supports bulk sourcing and custom configuration requests. Contact our team for technical datasheets, compatibility confirmation and competitive quotation.

Features

Fixed‑displacement axial piston design, available in 25 cc/rev, 35 cc/rev, 44 cc/rev, 46 cc/rev displacements (MMF025, MMF035, MMF044, MMF046)

Bi‑directional rotation, perfectly matched for marine winch forward‑reverse operation

High‑pressure tolerant structure for continuous heavy‑load marine deck operation

Compact high‑power‑density housing, fits limited onboard installation space

Heavy‑duty cast‑iron housing and reinforced bearing assembly for offshore vibration and humidity environment

Identified mounting, shaft and port dimensions for direct interchange with original Sauer Danfoss MMF series units

Multiple shaft and flange configuration options to adapt to diverse marine hydraulic systems

Strict factory performance testing before shipment to guarantee consistent quality

Advantages

Reliable stable torque output under cyclic heavy‑duty marine winch working cycles, lowering unexpected equipment downtime

Optimized internal friction design delivers high volumetric & mechanical efficiency, reduces system heat generation and energy loss

Drop‑in replacement capability simplifies retrofit and onboard repair work, saves spare‑part upgrade labour cost

Marine‑grade construction resists moisture, vibration and salt‑spray working conditions, extending service life for ship‑deck machinery

Wide pressure & speed operating window, compatible with most closed‑loop marine hydraulic drive systems

Cost‑effective aftermarket alternative for shipyards, vessel operators and offshore service companies

Convenient maintenance and spare‑part sourcing, well‑suited for global marine‑equipment end‑users

MMF025, MMF035, MMF044, MMF046 fixed‑displacement axial piston hydraulic motors are purpose‑built for marine and offshore hydraulic drive systems, widely adopted for both new‑build equipment and aftermarket retrofit & repair projects.

Marine winch drive: anchor winches, mooring winches, towing winches on working vessels

Ship deck machinery: deck cranes, capstans, hose‑handling units on merchant & work‑boats

Offshore platform auxiliary deck equipment for supply vessels and offshore service units

Hydraulic power drive for marine lifting, pulling and tensioning systems

Retrofitting & spare‑part replacement for existing Sauer Danfoss Series 40 hydraulic circuits

Closed‑loop hydraulic transmission for marine‑grade mobile deck actuators

Shipyard new‑build hydraulic system assembly and onboard component renewal

Coastal workboat, fishing vessel and inland waterway heavy‑duty deck hydraulic equipment

Supporting paragraph

Suited for shipyards, vessel operators, offshore service contractors and hydraulic system integrators worldwide. This MMF series delivers stable bi‑directional torque under cyclic shock‑load, salt‑mist and high‑vibration marine conditions, serving as reliable hydraulic drive units for critical deck‑level operations.

FAQ

Q1: What are MMF025, MMF035, MMF044 and MMF046 hydraulic motors used for?

These four models are fixed displacement axial piston hydraulic motors specially designed for marine winch and ship deck machinery. They are widely applied in anchor winches, mooring winches, deck cranes and offshore auxiliary hydraulic drive systems, suitable for various working vessels and offshore platform equipment.

Q2: What is the core difference between these MMF series motor models?

The main difference lies in displacement and working parameters: MMF025 (25cc/rev), MMF035 (35cc/rev), MMF044 (44cc/rev), MMF046 (46cc/rev). Larger displacement delivers higher torque, while smaller displacement supports higher rotation speed, covering different load and speed demands of marine winch systems.

Q3: Are your MMF series motors interchangeable with original Sauer Danfoss units?

Yes. Our MMF025-MM F046 fixed displacement motors adopt standard Series 40 installation dimensions, shaft and port configurations, realizing100% drop-in replacement. No pipeline or structural modification is needed for old ship refitting and equipment maintenance, greatly saving replacement costs.

Q4: What working pressure can these marine hydraulic motors withstand?

All MMF025, MMF035, MMF044, MMF046 motors support marine heavy-duty working conditions, with 250 bar rated pressure and 310 bar peak pressure. They can stably cope with cyclic impact loads and high-pressure operation of marine winches and offshore hydraulic systems.

Q5: Do MMF series axial piston motors support bidirectional rotation?

Absolutely. All four models feature bidirectional rotation design, perfectly matching the forward and reverse lifting, tensioning and retracting actions of marine winches, fully adapting to the operating logic of ship deck hydraulic systems.

Q6: What advantages do fixed displacement MMF motors have for marine applications?

Different from variable displacement motors, these fixed displacement axial piston motors have more stable torque output, simpler structure, lower failure rate and easier maintenance. The marine-grade cast iron housing resists salt spray, humidity and vibration, ensuring long-term stable operation in harsh offshore environments.

Q7: Can you provide customized or OEM services for MMF025-MM F046 motors?

Yes. We support OEM and customized configuration services including shaft type, flange size and sealing assembly. We can provide professional parameter confirmation and drawing verification according to customers' ship system parameters and installation requirements to ensure perfect matching with on-site equipment.

Q8: What is your delivery cycle and quality guarantee for MMF series hydraulic motors?

We have complete spot inventory of MMF025, MMF035, MMF044 and MMF046 models for fast global delivery. All motors undergo strict factory pressure resistance and performance testing. We provide reliable quality assurance and professional after-sales technical support, suitable for shipyard bulk procurement and marine equipment spare parts replacement.

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