Introduction
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BM5W Series Low Speed High Torque Motor-For Construction Machinery |
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●Rated pressure up to 20 MPa (200 bar) |
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●Displacement: 500 mL/r (496.6 mL/r) |
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●Low speed & high torque, stable operation |
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●End-face distribution, auto wear-compensation |
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●Speed range: 10–500 r/min (continuous) |
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●Low noise, reliable sealing, long service life |
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●Easy maintenance & interchangeable with international models |
BM5W Series Low-Speed, High-Torque Motor Specifications

Core Points
● Rated pressure up to 20 MPa (200 bar)
● Low speed high torque (continuous torque up to 1385 N·m)
● End-face distribution with automatic wear compensation
● Double tapered roller bearings for high radial load capacity
● Stable operation, low noise, and long service life
● Easy maintenance & interchangeable design
Advantages
● High volumetric efficiency: The advanced disc valve design minimizes energy loss and improves the overall energy utilization rate of the hydraulic system.
● Wide speed adaptability: The continuous speed range of 8–300 r/min enables it to adapt to various working conditions, whether low-speed heavy-load or moderate-speed stable operation.
● Robust and durable: Made of high-quality materials, its robust construction enhances resistance to impact, corrosion, and wear, suitable for long-term use in harsh environments such as construction sites, mines, and agricultural fields.
●Compact and high power density: The compact structure and high power density allow it to be installed in limited space, increasing its applicability in various types of machinery.
●Compact and high power density: The compact structure and high power density allow it to be installed in limited space, increasing its applicability in various types of machinery.
●Time and labor saving: The easy disassembly and maintenance design reduces equipment downtime and improves work efficiency.
●High cost-effectiveness: Provides users with high-performance products at a reasonable price, with strong market competitiveness.
Application Scenarios
● Construction machinery field: Commonly applied to excavators, road rollers, graders and other equipment, providing powerful driving force to ensure stable and efficient construction.
● Agricultural equipment field: Suitable for harvesters, tractors, sprayers and other agricultural machinery, adapting to the complex and harsh farmland
● Mining machinery field: Used in conveyors, drilling rigs and other equipment, withstanding high loads and harsh working conditions in mines to ensure
● Material handling field: Applied to forklifts, winches, hoists and other equipment, providing stable and reliable power for material handling, improving handling efficiency and safety.
● Marine and fishing field: Used in anchor windlasses, fishing net reels and other equipment, adapting to the humid and corrosive marine environment to ensure the normal operation of marine and fishing equipment.
● Industrial machinery field: Widely used in injection molding machines, machine tools and other equipment, providing stable power support for industrial production and improving production efficiency.
Related Models
● BM5W-50
● BM5W-100
● BM5W-160
● BM5W-200
● BM5W-250
● BM5W-315
● BM5W-400
● BM5W-500 (BM5W-500-ZAY)
● BM5W-630
● BM5W-800
● BM5W-985
News & Industry Trends
● Widely applied in low-speed high-torque hydraulic drive systems
● Preferred for heavy-duty mobile equipment requiring stable performance
● Growing demand in construction, agriculture, and mining sectors
● High compatibility as replacement for international equivalent models
● Focus on energy-saving, high-efficiency, and maintenance-free design












