BMH Series Hydraulic Motor | BMH-200 BMH-250 BMH-315 BMH-400 BMH-500 | OMH Equivalent Orbit Motor

BMH Series Medium-Heavy Duty Spool Valve Orbit Motors

Product Overview: The BMH Series orbital motor is an industrial benchmark that balances a compact envelope with powerful torque output. This category features the full displacement lineup: BMH-200, BMH-250, BMH-315, BMH-400, and BMH-500. Utilizing classic Spool Valve technology and a precision Geroler® roller set, the BMH series delivers massive torque at medium operating pressures. With its robust axial load capacity, these motors are the premier choice for harvester attachments, construction machinery drives, heavy-duty conveyors, forestry grapples, and industrial shredding equipment.

Key Technical Advantages:

• Heavy-Duty Geroler® Geometry: The internal roller contacts minimize mechanical friction, ensuring pulse-free operation in Low Speed High Torque (LSHT) conditions and drastically extending the motor’s service life.

• Reinforced Bearing System: Equipped with larger bearings compared to light-duty series, the BMH allows for higher radial shaft loads—perfect for chain or gear-driven applications.

• High-Pressure Seal Integrity: Features a premium high-pressure shaft seal that maintains leak-free operation under significant back-pressure, often without the need for an external case drain.

• Engineered Balance: Merges the cost-efficiency of spool valve motors (like OMP) with the heavy-duty traits of disc valve motors (like OMS), providing an ideal solution for performance-to-cost optimization.

• Technical Decoding:

  • BMH-200/250: Optimized for a balance between mid-to-high speeds and consistent torque.

  • BMH-400/500: Engineered for heavy-load, slow-speed tasks requiring maximum pulling or pushing power.

Detailed Specifications & Parameters:

• Core Series: BMH Series (OMH Equivalent).

• Featured Model Matrix: BMH-200, BMH-250, BMH-315, BMH-400, BMH-500.

• Core Performance Specs:

  • Displacement Range: 201.2 cc/rev to 502.4 cc/rev.

  • Rated Pressure: Continuous up to 140-160 Bar (2320 PSI); Intermittent peaks up to 175-200 Bar.

  • Torque Capability: Continuous torque ranging from 400 Nm to 850 Nm, with peaks up to 1000 Nm.

  • Mounting Standards: Standard 4-Bolt Square or 2-Bolt A Flanges with 32mm/35mm Keyed or Splined shaft options.