JNM Series — Radial Piston Hydraulic Motors
Short Description:
Engineered for Reliability on Land and Sea.The JHM Series features an outer five-piston radial layout—a configuration widely used on winches and deck equipment for its stable output, strong bearing capacity, and smooth low-speed behavior. Originating from marine-grade applications and evolved for modern industry, JHM brings that offshore reliability to your toughest onshore tasks as well.
• Fluid column technology design: fewer moving links, reduced friction and wear, ensuring very high mechanical and volumetric efficiency.
• High starting torque close to theoretical values, delivering full torque at startup and under heavy load.
• Ultra-low speed capability: stable, cog-free motion even below 1 rpm.
• Robust marine-grade construction: long life under salt-mist, shock loads, and harsh industrial environments.
• Flexible configurations: fixed, dual, or variable displacement options; customizable shafts, seals, and brakes.
• Compact radial piston architecture: excellent torque density and smooth power delivery.
• Displacement Range: from several hundred to over 5000ml/r.
• Torque Output: medium-to-high torque envelope, up to tens of thousands of Nm.
• Working Pressure: continuous up to 300 bar, peaks above 350 bar.
• Speed Range: from creeping speeds ≤0.5–1 rpm up to approx. 400 rpm (depending on displacement).
• Power Range: approx. 5–150 kW depending on duty.
• Options: parallel key shafts, splined shafts, internal spline; parking/holding brakes; integrated valve blocks (relief, flushing, anti-cavitation); marine-grade sealing systems.
• Marine & Offshore: winches, mooring drives, steering thrusters, jack-up systems.
• Industrial: shredders, recycling plants, slewing drives, injection moulding machines.
• Construction & Heavy Equipment: hoisting/lifting drives, rotary drilling units, heavy-duty handling systems.