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BMS series Hydraulic motor

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Description

BMS Hydraulic Motor

The BMS series hydraulic motor is a high-performance orbital hydraulic motor designed for continuous operation, widely used in various industrial and agricultural applications. Below are the complete technical specifications, including model parameters, key features, and performance data, to help you select the right product for your needs.

BMS Series Hydraulic Motor Core Specifications (Model List)

Model
Displacement (cm³/rev)
Max Continuous Pressure (MPa)
Max Intermittent Pressure (MPa)
Max Continuous Torque (N·m)
Speed Range (rpm)
Max Output Power (kW)
BMS 80
80.5
17.5
20.5
194
5 – 805
16
BMS 100
100.5
17.5
20.5
242
5 – 745
18
BMS 125
126.3
17.5
20.5
303
5 – 590
18
BMS 160
160.8
16.0
20.5
358
5 – 465
18
BMS 200
200.9
16.0
20.5
438
5 – 370
18
BMS 250
252.6
12.5
20.0
440
5 – 295
11
BMS 315
321.5
12.5
20.0
551
5 – 230
10
BMS 400
401.9
10.0
15.5
560
5 – 185
8
BMS 500
476.5
8.0
12.0
728
5 – 155
9

Key Features of BMS Series Hydraulic Motors

  • Disc-type distribution valve, driven by a short cardan shaft, reducing internal hydraulic losses by separating output shaft loads from hydraulic oil distribution.
  • Tapered roller bearings on the output shaft, capable of absorbing high static and dynamic radial loads, higher than spool valve models.
  • Geroler gear set design with rollers, ensuring high volumetric and mechanical efficiency.
  • Low pressure start, reinforced shaft seal, and high startup torque, able to withstand significant back pressures.
  • Compact size, easy installation, and flexible design with various mounting flanges, shafts, and ports.
  • Interchangeable with Danfoss, Eaton, and M+S series hydraulic motors, suitable for various harsh working conditions.

Performance Characteristics

BMS hydraulic motors are orbital type, dedicated to continuous operation with stable performance. The displacement ranges from 80.5 cm³/rev to 476.5 cm³/rev, covering a wide range of torque and speed needs. The maximum inlet pressure can reach 23 MPa, ensuring strong power output for heavy-duty applications. The motors feature smooth operation, long service life, and high efficiency, making them ideal for medium-duty working scenarios.

Application Areas

BMS series hydraulic motors are widely used in various industries, including:
  • Construction machinery: Rollers, cement mixers, cleaning cars, and construction equipment.
  • Agricultural machinery: Combine harvesters, mowers, seeders, rotary tillers, and feed mixers.
  • Material handling equipment: Conveyors, lifting equipment, and winding machines.
  • Other fields: Road sweepers, refuse lorries, forestry equipment, and marine equipment.

Model Coding Explanation

The BMS series model coding consists of 7 parts, indicating the motor type, variant, displacement, flange, shaft, and other specifications. For example, “BMS 80 E4 B D B” means:
  1. Type: BMS (disc valve type orbital motor)
  2. Variant: Omit (standard), S (short version), W (wheel version)
  3. Displacement: 80 (80.5 cm³/rev)
  4. Flange: E4 (square flange with 4 mounting holes)
  5. Shaft: B (ø 32 cylindrical shaft with parallel key)

Shipping & Delivery

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