BMH series Cycloid motor

Comparison table of core parameters

Series   displacement       range (cm3/rev)    Maximum pressure (bar)      Typical torque (N·m)@150bar maximum speed (rpm) Applicable scenarios
BM                   50-125           175            BM-125:310                    3000                    light machinery, AGV trolley
BMV                   195-801.8           210             BMV-800: 1900             1800                    high pressure heavy duty (excavator arm)
BMT                   80-801.8             175           BMT-800: 1750             2400                    medium speed and high torque (conveyor belt)
BMS                   50-395             175              BMS-395: 920                3000                   compact equipment (agricultural machinery steering)
BMR                   203.2–489.2           210             BMR-500: 1150        366                   low speed and high torque (winch)
BMM                   16-32           140         BMM-32:7.2                     3500                    micro-flow control (medical equipment)
BMH                   80-489.2           240       BMH-500: 1470       1500                     ultra-high pressure impact conditions

The core application areas and technical characteristics of BMH series cycloid hydraulic motors are comprehensively compiled from authoritative technical documents and manufacturer data：
Core application scenarios
Construction machinery
Tubing pliers, bolt drilling rigs (BMH-315/400 model)
Hydraulic traction shearer (end face distribution design adapted to high pressure working conditions)

Agricultural and marine equipment
Harvester drive, spreader (BMH-160/200)
Fishing reel net winch (corrosion-resistant design)

Industrial automation
Injection molding machine, manipulator (high precision and low speed control)
Conveyor, operating machine (strong axial load tolerance)
Technical advantage
Efficient flow distribution: The axial flow distribution structure (6/7 gear rotor stator) achieves low starting pressure (<0.5MPa) and high mechanical efficiency (>85%).
High pressure adaptation: the working pressure reaches 12-14 MPa, the peak is 16-20 MPa, and the series/parallel hydraulic system is supported.
Long-life design: the inlaid rotating stator automatically compensates for wear, and the linkage shaft is optimized to reduce the failure rate.
Selection reference
Torque matching：
Torque (N·m) = displacement × working pressure / 20n
Example: BMH-315 @12 MPa → 315×12/62.83 ≈60 N·M.
Maintenance recommendations: Regularly check the wear and tear of the shaft seal to avoid oil pollution (NAS 1638 level 8 or less is recommended).
Note: BMH-500 needs to limit the continuous running time at >14 MPa to prevent the distribution disc from overheating.