HMS Series 80/100/125/160/195/245/305/395/500 Low Speed High Torque Hydraulic Motor | Radial Piston Drive Motor Manufacturer For Construction Machinery
HMS series radial piston hydraulic motor is a low-speed high-torque heavy-duty drive component. Rated pressure 25MPa, peak 31.5MPa, stable operation at 1rpm without vibration. Molybdenum-coated pistons and floating valve plate reduce wear and internal leakage, volumetric efficiency over 92%. Optional built-in parking brake, multiple shaft outputs available, interchangeable with imported motors. Widely used in mining, construction, marine and metallurgical machinery, custom specifications supported, 12-month warranty.
| (ml/r)Displacement | 80 | 100 | 125 | 160 | 195 | 245 | 305 | 395 | 500 | |
| (LPM) Flow | Continuous | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Intermittent | 85 | 95 | 95 | 115 | 115 | 115 | 115 | 130 | 130 | |
| (RPM) speed | Continuous | 850 | 675 | 552 | 430 | 345 | 287 | 231 | 178 | 142 |
| Intermittent | 956 | 855 | 700 | 660 | 529 | 423 | 347 | 308 | 246 | |
| (Mps) pressure | Continuous | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 | 17.5 | 15 | 15 | 12 |
| Intermittent | 28 | 28 | 28 | 25 | 25 | 25 | 21 | 175 | 15 | |
| (N*m) Torque | Continuous | 178 | 223 | 278 | 356 | 445 | 557 | 580 | 715 | 720 |
| Intermittent | 285 | 356 | 445 | 509 | 636 | 755 | 763 | 840 | 860 | |
Core Advantages
- Stable low-speed operation down to 1rpm with no torque pulsation, high starting torque
Excellent high pressure resistance: rated 25MPa, peak 31.5MPa for heavy loads
Molybdenum-coated friction pairs and floating valve plate reduce wear & internal leakage for longer service life
Optional integrated mechanical parking brake, direct drive without extra reducer
Various shaft and port options,interchangeable mounting size for direct replacement of imported motors
Bi-directional rotation, volumetric efficiency ≥92%, low heat and energy consumption
Thickened high-strength housing with reliable sealing, suitable for dusty, salt-spray harsh conditions
Custom displacement, flange and shaft types available, 12-month full warranty
Applications
Construction machinery, mining equipment, marine machinery, metallurgical roller tables, injection molding machines, heavy agricultural & forestry machinery




1.OEM/ODM capabilities
2.Competitive pricing & bulk discounts
3.Fast shipping & customs clearance support
4.Turnkey project solutions
Standard Warranty: 12 months
Extended Warranty: Optional coverage up to 24 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.
A: Standard models ship in 7-15 days; customized units require 30-45 days.
A: Yes, we have partnered service centers in key regions.
A: Absolutely! We offer tailored attachments.
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
A: Contact us via email/phone for a quote, then confirm with a PO.










