6K BM6 Orbital Hydraulic Motor | LSHT | BM6-315 BM6-490 | BMT OMT Equivalent

The 6K / BM6 Series from LIC Hydraulic is a premier line of disk-valve orbital hydraulic motors designed for the most demanding Low Speed High Torque (LSHT) applications. Engineered as a high-performance equivalent to Eaton 6000 and Danfoss OMT series, these motors cover a displacement spectrum from $195\text{cc}$ to $985\text{cc}$. We guarantee 100% mechanical interchangeability and subject every unit to 100% full-load torque calibration and low-speed stability testing, delivering professional durability for heavy-duty industrial and mobile machinery.

Technical Configuration Details

• Series Hierarchy: 6K, BM6, BMT, OMT standards.

• Displacement Models: 245, 310, 390, 490, 630, 800, 985 (cc/rev).

• Max Pressure: Continuous up to $200\text{ bar}$ ($2900\text{ psi}$); Intermittent up to $240\text{ bar}$.

• Torque Output: Peak torque exceeding $2400\text{ Nm}$ on the largest displacements.

• Mounting: Standard 4-bolt square flange or wheel-mount options with keyed/splined shafts.

Key Technical Advantages

• Advanced Disk Valve Technology: The independent disk valve rotates synchronously with the output shaft, providing superior timing and wear compensation. This maintains high volumetric efficiency throughout the motor’s lifespan.

• Geroler Set with Rollers: Incorporating rollers in the rotor set minimizes friction during startup and ensures smooth, consistent rotation even at speeds as low as $5\text{–}10\text{ RPM}$.

• Robust Load Bearing: Equipped with heavy-duty tapered roller bearings, the 6K/BM6 series can handle significant radial and axial forces, making them ideal for direct-drive wheel or winch applications.

• High-Pressure Shaft Seals: Engineered with premium materials, the shaft seal handles high back-pressures, offering simplified system design and enhanced leak protection in rugged environments.

Application Areas

• Winch Drives: Marine deck machinery, recovery winches, and construction hoists.

• Mobile Equipment: Drive motors for compact loaders, sweepers, and trenchers.

• Agricultural Machinery: High-torque drives for harvesters, seeders, and compost mixers.

• Industrial Processing: Powering heavy conveyors, plastic shredders, and food processing lines.

Expert Maintenance Tips

• Prime Before Startup: Always fill the motor case with filtered hydraulic oil through the drain port before operation. This ensures immediate lubrication of the internal splines and bearings.

• Back-Pressure Management: To maximize seal life in continuous or high-duty cycles, utilize the external case drain line. This lowers internal case pressure and aids in heat dissipation.

• Filtration Integrity: Maintain oil cleanliness to ISO 4406 19/17/14. Orbital motors are sensitive to particle contamination, which can cause internal scoring and lead to a significant loss in torque efficiency.