BMT Series Hydraulic Motor
Products: Orbital Hydraulic Motors
The BMT series cycloidal hydraulic motors are advanced hydraulic motors featuring a face-port distribution design. These motors utilize a column-type rotor-stator assembly and are characterized by high operating pressure, high efficiency, excellent overall efficiency retention, and a long service life. Based on the standard design, multifunctional variants can be customized to meet specific user requirements.
Description:
BMT and BMTZ orbital hydraulic motors are designed for medium- to heavy-duty mobile machinery and industrial hydraulic systems requiring high torque, high flow and reliable load capacity. With nominal displacements from 160 to 800 cm³/rev., continuous working pressure differences up to 20 MPa and continuous torque up to 1,550 N·m, the series provides a powerful drive solution for demanding hydraulic applications.
Key Specifications
• Nominal displacement range: 160–800 cm³/rev.
• Actual displacement range: 166.6–853.1 cm³/rev.
• Max. continuous working pressure difference: up to 20 MPa.
• Max. continuous torque: up to 1,550 N·m.
• Max. continuous flow: up to 125 L/min.
• Max. inlet pressure: 21 MPa continuous / 25 MPa intermittent / 30 MPa peak.
• BMT and BMTZ mounting, shaft, port and rotation options available.
BMT / BMTZ Series Technical Data
Technical ratings apply to both BMT and BMTZ variants. Mounting, connection dimensions and available configurations may differ.
BMT / BMTZ 160–250
BMT-160
• Actual Displacement: 166.6 cm³/rev. • Max. Speed: 590 / 740 rpm • Max. Torque: 485 / 580 N·m • Max. Working Pressure Difference: 20 / 24 MPa • Max. Flow: 100 / 125 L/min
Continuous / Intermittent values.
BMT-200
• Actual Displacement: 210 cm³/rev.
• Max. Speed: 580 / 710 rpm
• Max. Torque: 613 / 735 N·m
• Max. Working Pressure Difference: 20 / 24 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
BMT-230
• Actual Displacement: 234.5 cm³/rev.
• Max. Speed: 520 / 630 rpm
• Max. Torque: 675 / 825 N·m
• Max. Working Pressure Difference: 20 / 24 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
BMT-250
• Actual Displacement: 267.9 cm³/rev.
• Max. Speed: 460 / 555 rpm
• Max. Torque: 770 / 935 N·m
• Max. Working Pressure Difference: 20 / 24 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
BMT / BMTZ 315–800
BMT-315
• Actual Displacement: 337 cm³/rev.
• Max. Speed: 365 / 440 rpm
• Max. Torque: 980 / 1,170 N·m
• Max. Working Pressure Difference: 20 / 24 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
BMT-400
• Actual Displacement: 426.7 cm³/rev.
• Max. Speed: 290 / 350 rpm
• Max. Torque: 1,120 / 1,300 N·m
• Max. Working Pressure Difference: 18 / 21 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
BMT-500
• Actual Displacement: 535.8 cm³/rev.
• Max. Speed: 230 / 280 rpm
• Max. Torque: 1,245 / 1,400 N·m
• Max. Working Pressure Difference: 16 / 18 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
BMT-630
• Actual Displacement: 672.1 cm³/rev.
• Max. Speed: 182 / 220 rpm
• Max. Torque: 1,400 / 1,600 N·m
• Max. Working Pressure Difference: 12 / 16 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
BMT-800
• Actual Displacement: 853.1 cm³/rev.
• Max. Speed: 143 / 175 rpm
• Max. Torque: 1,550 / 1,600 N·m
• Max. Working Pressure Difference: 10.5 / 13 MPa
• Max. Flow: 125 / 150 L/min
Continuous / Intermittent values.
Max. Inlet Pressure
21 MPa rated / 21 MPa continuous / 25 MPa intermittent / 30 MPa peak.
Operating Definitions
Continuous values refer to the maximum values at which the motor can operate continuously.
Intermittent values refer to the maximum values at which the motor operates for up to 6 seconds within one minute.
Peak values refer to the maximum values at which the motor operates for up to 0.6 seconds within one minute.
Values shown are for preliminary model selection. Refer to the PDF datasheet for rated and peak values, detailed performance data, shaft seal pressure, axial and radial load information, mounting dimensions and ordering information.
Available Configurations
Multiple mounting, shaft, port, rotation and finish options are available for different equipment and hydraulic system requirements.
Structures & Mounting
• Standard BMT configuration
• Alternative BMTZ mounting configuration
• 4-bolt square flange options
• 2-bolt diamond flange options
• Pilot Ø100, Ø125 and Ø127 options
Shaft Options
• Straight keyed shafts
• Involute spline shafts
• Straight-sided spline shafts
• Tapered shaft options
• Metric and imperial shaft sizes
Port Options
• G thread options
• Metric thread options
• UN O-ring ports
• Subplate mounting options
• Multiple drain-port configurations
Rotation & Special Options
• Standard rotation
• Reverse rotation
• Unpainted, blue, black or silver-gray finish
• Standard and customized configurations
Available configurations vary by displacement and motor structure. Please provide the existing model, nameplate, mounting flange, shaft dimensions, port threads, drain-port requirements and application information for final confirmation.
BMT and BMTZ Structure Options
BMT and BMTZ variants share the same main technical ratings but use different mounting flange, connection and dimensional configurations. Final model selection should be confirmed using the existing motor dimensions, shaft details, port arrangement and application requirements.
Designed for high torque mobile drives
High Torque Output
Delivers strong low-speed torque for demanding hydraulic drive functions.
Larger Displacement Range
The 160–850 cm³/rev displacement range supports larger speed and torque requirements.
Heavy Mobile Drive Use
Designed for continuous work in heavy mobile machinery hydraulic systems.
Construction Machinery Ready
Suitable for construction equipment, agricultural machines and industrial hydraulic drives.
Applications
Harvesting equipment
Tractors & attachments
Precision Farming Solutions
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