SG20 MFB250

Toshiba SG20 MFB250 hydraulic motor specifications

Toshiba SG20 is a heavy-duty hydraulic gear motor designed to drive the slewing mechanisms of large quarry excavators. This unit is the pinnacle of engineering in its class, combining a large-volume axial piston motor and a massive planetary gearbox. Its key task is to create a colossal torque to rotate the multi-ton platform of the largest excavators, while ensuring accuracy, reliability and safety in the most difficult operating conditions.

Technical specifications of the Toshiba SG20 MFB250 hydraulic motor:

• Type: Hydraulic motor-reducer for platform rotation
• Design: It is a single monolithic unit consisting of:
  • Hydraulic motor: Axial piston motor with swash plate, designed to operate with extremely high pressure and high flow rates of hydraulic fluid.
  • Gearbox: Integrated multi-stage planetary gearbox with reinforced design for maximum torque transmission.
  • Valve block: An integrated block containing safety and brake valves to protect against peak loads and ensure smooth braking.
• Displacement: 250 cm³/rev.
• Nominal working pressure: 320-350 bar (32 - 35 MPa).
• Maximum peak pressure: 400 bar (40 MPa).
• Output speed: 8-10 rpm (for example, for Kobelco SK480D the speed is 9.0 rpm).
• Weight: approximately 380-450 kg.
• Application: The SG20 gear motor is installed on heavy quarry excavators weighing from 45 to 55 tons.

Cross numbers of hydraulic motors: VOE14645001, VOE14625697, VOE14535293, VOE14622007, VOE14645005

Installed in the equipment model:

• Volvo EC360, EC700B
• HYUNDAI R360LC-3
• DOOSAN DS225

The company "Aspect Plus" offers a wide range of spare parts for repairing the Toshiba SG20 MFB250 hydraulic motor.