Products · Orbital Motors

BM3 Heavy-Duty LSHT Orbit Motor

The entry frame of the BM3–BM6 heavy-duty family — direct-mount flange eliminates the intermediate gearbox, with output-shaft and wheel-type builds and the BM3Y variant for outrigger and unloading drives.

THOTH / ZiHYD · Since 1971  ·  ← Selection guides using BM3

THOTH BM3 heavy-duty orbit hydraulic motor

The BM3–BM6 family carries the orbital principle into heavy duty — up to 3,000 N·m continuous rated torque across the family, with a direct-mount flange that removes the coupling and gearbox from the drivetrain entirely.

The BM3Y variant is proven in grain truck unloading augers — sustained 250–800 N·m at 30–150 r/min with no leak points in food-grade environments — and in concrete pump outrigger extension drives.

Speed sensor option available for closed-loop anti-stall control.

Specifications · BM3 (BM3–BM6 family)

TypeHeavy-duty LSHT orbit (cycloid) motor
Family displacement80 – 1,250 ml/r (BM3/4/5/6)
Family torque194 – 3,000 N·m
Speed range10 – 805 r/min
Max flow65 – 160 L/min
ConfigurationsOutput shaft / Wheel type · BM3Y variant · Speed sensor option
Typical drivesGrain truck unloading · Outrigger extension · General heavy LSHT

Used in these application guides