Products · Orbital Motors

BMP Orbit Hydraulic Motor

The multi-purpose workhorse of the orbital range — high efficiency across a wide speed band, with the BMPH horizontal-port option for confined installations.

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

THOTH BMP orbit hydraulic motor

BMP covers the broad middle of the orbital range — available in both gerotor and geroler designs with axial oil distribution for smooth performance under variable loads.

The BMPH variant places the ports horizontally, critical where installation depth is limited. The TMPH development delivers BMR-level performance in a BMP-sized body, with dual internal check valves that eliminate the case drain line.

Typical duty: compact agricultural drive modules, industrial conveyor systems, small material handling equipment, and hydraulic power unit output drives.

Specifications · BMP

TypeOrbit (cycloid) motor — Gerotor and Geroler designs
Displacement25 – 400 ml/r
Torque34 – 380 N·m
Speed range10 – 1,550 r/min
Max flow40 – 60 L/min
VariantsBMPH (horizontal ports) · TMPH (dual check valves, no case drain)
Typical drivesAgri drive modules · Conveyors · HPU output drives

Used in these application guides