Low Speed High Torque Nhm (S) 70 External Five Star Radial Piston Hydraulic Motor

The NHM(S)70 features a reinforced quad-row roller bearing crankshaft and optimized external five-star stator, delivering up to 120,000 Nm torque at 0.2 RPM with 35 MPa peak pressure, making it the definitive maximum displacement radial piston hydraulic motor for mega-vessel mooring winches and TBM cutterhead drives where no other motor can operate reliably under continuous extreme shock loads.

Absolutely. Reversible rotation is factory-standard with symmetrical porting and balanced valve timing, enabling seamless forward/backward operation in mooring winches, anchor handling systems, and TBM thrust circuits without cross-line relief valves, reducing system complexity and maintenance costs in demanding heavy-duty hydraulic systems.

The NHM(S)70 series covers displacements from 70,000cc to 85,000cc per revolution, generating up to 120,000 Nm continuous torque at 25 MPa, specifically engineered for direct-drive applications requiring massive torque without gearboxes, such as offshore platform positioning systems, steel mill coilers, and large-diameter tunnel boring machines.

The NHM(S)70 is manufactured to identical Italian Intermot technical standards with fully interchangeable mounting flanges, shaft dimensions, and port configurations, offering a cost-effective, high-pressure drop-in replacement for Staffa HMC12 and Italgroup NHM70 external five star motors with 60% faster lead times and comprehensive global field support for mission-critical installations.

Yes, we offer ATEX-certified and DNV-type-approved versions with nickel-aluminum bronze housings and specialized seals for the NHM(S)70, enabling reliable operation in offshore platform subsea systems, LNG carriers, and mining equipment in explosive atmospheres while maintaining full high-pressure performance and international safety compliance.