BMT Series Cycloidal Hydraulic Motor

Description :

The BMT series cycloidal hydraulic motor features an advanced planar flow structure with a column-type rotor, delivering high working pressure, efficiency, and durability.

It supports customizable multifunctional designs based on user requirements. Key features include:

Optimized stator design for low starting pressure, high efficiency, and strong retention.
High working pressure and large output torque, with a tapered roller bearing structure that enhances shaft and radial load capacity, enabling direct drive of working mechanisms and expanding application range.
Advanced planar flow distribution ensures high accuracy, robust wear compensation, high volumetric efficiency, extended motor life, and stable speed and load characteristics.

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Product Description:

The BMT Series Cycloidal Hydraulic Motor is a heavy-duty Low-Speed High-Torque (LSHT) orbital hydraulic motor engineered for demanding hydraulic drive applications. Utilizing advanced Geroler gear technology and a reinforced output shaft structure, the BMT motor provides exceptional torque output, high efficiency, smooth low-speed performance, and outstanding durability under continuous heavy-load conditions.

The BMT Series is widely used in construction machinery, agricultural equipment, mining machinery, forestry equipment, hydraulic winches, conveyors, drilling machines, and industrial hydraulic drive systems.

Type		BMT160	BMT200	BMT230	BMT250	BMT315	BMT400	BMT500	BMT630	BMT800
Geometric displacement	(cm3/rev)	161.1	201.4	232.5	251.8	326.3	410.9	523.6	629.1	801.8
Max.speed	rated (rpm)	470	475	412	381	294	228	183	150	121
	cont. (rpm)	625	625	536	500	380	305	240	196	154
	int. (rpm)	780	750	643	600	460	365	285	233	185
Max.Torque	rated (N*m)	379	471	530	582	758	896	1063	1156	1207
	cont. (N*m)	470	590	670	730	950	1080	1220	1318	1464
	int. (N*m)	560	710	821	880	1140	1260	1370	1498	1520
	peak (N*m)	669	838	958	1036	1346	1450	1644	1619	1665
Max.output	rated (Kw)	18.7	23.4	23.2	23.2	23.3	21.4	20.4	18.2	15.3
	cont. (Kw)	27.7	34.9	34.7	34.5	34.9	31.2	28.8	25.3	22.2
	int. (Kw)	32	40	40	40	40	35	35	27.5	26.8
Max.pressuredrop	rated (Mpa)	16	16	16	16	16	15	14	12	10.5
	cont. (Mpa)	20	20	20	20	20	18	16	14	12.5
	int. (Mpa)	24	24	24	24	24	21	18	16	13
	peak (Mpa)	28	28	28	28	28	24	21	19	16
Max.flow	rated (L/min)	80	100	100	100	100	100	100	100	100
	cont (L/min)	100	125	125	125	125	125	125	125	125
	int (L/min)	125	150	150	150	150	150	150	150	150
Max.inlet pressure	rated (L/min)	21	21	21	21	21	21	21	21	21
	cont (L/min)	21	21	21	21	21	21	21	21	21
	int (L/min)	25	25	25	25	25	25	25	25	25
	peak (L/min)	30	30	30	30	30	30	30	30	30
Weight	Weight (kg)	19.5	20	20.4	20.5	21	22	23	24	25

Working Principle

The BMT Series motor operates through a precision-engineered Geroler rotor-stator assembly.

Hydraulic oil enters the motor through the inlet port.
The internal distribution valve directs pressurized oil into the Geroler chambers.
Pressure differences cause the rotor to rotate within the stator.
Rotational force is transmitted to the output shaft.
Return oil exits through the outlet port and returns to the hydraulic tank.

This design converts hydraulic energy into powerful rotary motion while maintaining high efficiency and smooth operation throughout the speed range.

Product Features

Advanced Geroler gear set design
High starting torque and low-speed stability
High volumetric and mechanical efficiency
Heavy-duty bearing structure
High radial and axial load capacity
Smooth operation under heavy loads
Bi-directional rotation
Compact design with high power density
Low noise and vibration levels
Long service life with minimal maintenance
Multiple mounting, shaft, and port configurations available

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BMT Series Cycloidal Hydraulic Motor

Working Principle

Product Features

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