DanFoss Hydraulic Walking Motor MMF044 MMF046
The MMF04 hydraulic motor from Danfoss in Denmark is a radial piston hydraulic motor belonging to Danfoss' MMF series. This series is designed for medium to high pressure applications and features a compact structure, high power density, and good efficiency.
Main Features
Radial plunger design
Multiple plungers (usually 5 or 7 plungers) are arranged radially and output torque is driven by an eccentric shaft.
High starting torque and good low-speed stability.
Range of work pressure
The rated pressure can reach 250 bar, and the peak pressure can reach 315 bar.
Suitable for various hydraulic oils (mineral oil, bio oil, etc.).
Displacement specifications
MMF04 has multiple displacement options (such as from about 40 cc/rev to around 100 cc/rev, please refer to the model table for details).
You can choose between single speed or dual speed versions according to your needs.
Installation and Connection
Flange installation (SAE or ISO standard).
There are various forms of output shafts (flat keys, splines, etc.).
The inlet and outlet of oil are usually threaded connections (such as BSP or SAE).
Application field
Suitable for low-speed and high torque applications, such as:
Agricultural machinery (harvesters, seeders)
Construction machinery (small cranes, winches)
Ship machinery (servos, winches)
Industrial equipment (rotary drive, conveyor belt)
Model Description
Danfoss models typically include information such as series, displacement, shaft type, and oil port position.
Example: MMF04-050-B1-XX
MMF04: Series
050: Displacement (e.g. 50 cc/rev)
B1: Axis type/rotation direction
XX: Details such as oil port options
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