Products · Orbital Motors
BMH Reinforced Orbit Motor
Built for radial loads — reinforced housing and shaft bearing system that sustains multi-section boom forces under full load, hour after hour.
BMH is the radial-load specialist of the orbital range. Its reinforced housing and shaft bearing system are sized to sustain the loads a multi-section concrete boom applies under full concrete load.
The duty cycle it was built for: 10–80 r/min continuously for hours — exactly how a boom rotates between pour positions on a high-rise construction site. In the complete concrete pump system, BMH drives the boom while BM3Y handles outriggers and ZCM3 the main slew.
Reference OEM customers include Putzmeister, Schwing, SANY, CIFA, Zoomlion, and XCMG.
Specifications · BMH
| Type | Reinforced orbit (cycloid) motor |
| Displacement | 200 – 500 ml/r |
| Torque | 425 – 720 N·m |
| Speed range | 10 – 365 r/min |
| Max flow | 75 L/min |
| Strength | Reinforced housing and bearings for sustained radial loads |
| Typical drives | Concrete pump boom · Excavator attachments · Slew duties |
Used in these application guides