Radial piston motor Rexroth MCR-A for frame integrated drives MCR10A1250A75Z32B7M1L42

▶ Frame size MCR3, MCR5, MCR10, MCR15
▶ Displacement 160 cc to 2150 cc
▶ Diff erential pressure up to 450 bar
▶ Torque output up to 13687 Nm
▶ Speed up to 875 rpm
▶ Open and closed circuits

This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.

Contact Us
Categories: , , Tags: , , , , , , , Brand:

Bosch Rexroth MCR-A Series Radial Piston Motor

1. Application Range (Applications)

The Bosch Rexroth MCR-A series is a high-torque radial piston motor with frame-integrated design, specifically developed for hydrostatic wheel drive systems and heavy-duty mobile machinery requiring compact installation, high torque density, and excellent low-speed performance.

1.1 Mobile Machinery Applications

(1) Construction Equipment

  • Wheel loaders (compact, mid-size, and heavy-duty)
  • Mini loaders and skid steer loaders
  • Soil compactors and rollers
  • Concrete mixers (self-propelled types)
  • Road maintenance machines
  • Drilling and piling rigs (auxiliary drive systems)

(2) Agricultural Machinery

  • Self-propelled harvesters (corn, wheat, sugarcane)
  • Forage harvesters and feed mixers
  • Fertilizer spreaders
  • Sprayers and irrigation vehicles
  • Tractor auxiliary hydrostatic drives

(3) Forestry Machinery

  • Wood chippers
  • Forestry mulchers
  • Log transporters
  • Tree harvesters (wheel drive systems)

(4) Material Handling & Industrial Vehicles

  • Heavy-duty conveyor systems
  • Automated transport platforms
  • Mining auxiliary vehicles
  • Terminal handling equipment
  • Industrial towing vehicles

(5) Special Purpose Machines

  • Military and off-road vehicles
  • Drilling platforms and crawler carriers
  • Airport ground support vehicles
  • Utility and rescue vehicles

1.2 Typical Operating Functions

The MCR-A is widely used for:

  • Direct wheel hub drive (no gearbox required)
  • Hydrostatic traction drive systems
  • Low-speed high-torque propulsion
  • Bi-directional travel systems
  • High shock-load applications

Bosch Rexroth MCR-A Series Radial Piston Motor

1. General Technical Data

Item Specification
Product type Radial piston motor
Series MCR-A
Design principle Multi-stroke radial piston (cam ring / eccentric shaft)
Displacement type Fixed displacement
Mounting concept Frame-integrated wheel drive motor
Rotation Bi-directional

2. Displacement & Frame Sizes

Frame Size Displacement Range (cm³/rev) Typical Application
MCR-A 05 ~160 – 250 Small skid steer, compact loader
MCR-A 10 ~250 – 400 Compact wheel loader
MCR-A 15 ~400 – 630 Medium construction machinery
MCR-A 20 ~630 – 1000 Agricultural & industrial vehicles
MCR-A 25 ~1000 – 1600 Heavy-duty loaders, forestry
MCR-A 30 ~1600 – 2150 Mining & high torque drive systems

3. Pressure Ratings

Parameter Value
Nominal operating pressure 350 – 450 bar
Maximum pressure (peak) Up to 500 bar
Case drain pressure ≤ 2 – 3 bar
Pressure medium Mineral oil / biodegradable hydraulic oil

4. Speed Range

Parameter Value
Minimum stable speed 5 – 10 rpm
Normal operating speed 10 – 600 rpm
Maximum speed Up to 800 – 1000 rpm (depends on size/load)

5. Torque Output

Frame Size Approx. Torque Range
Small (05–10) 1,000 – 3,000 Nm
Medium (15–20) 3,000 – 8,000 Nm
Large (25–30) 8,000 – 20,000 Nm

6. Efficiency

Parameter Value
Volumetric efficiency Up to 95%
Mechanical efficiency Up to 90%
Overall efficiency High under partial load conditions

7. Hydraulic Connections

Port Function
A / B Main pressure ports
L Case drain (mandatory)
X (optional) Control / 2-speed function
Z (optional) Brake release port
S (optional) Speed sensor interface
F (optional) Flushing valve port

8. Design Features

Feature Description
Output shaft Splined / keyed / flange type
Bearing system Heavy-duty tapered roller bearings
Housing High-strength cast housing
Load capacity High radial & axial load resistance
Mounting Direct wheel hub or axle integration

9. Optional Functions

Option Function Description
Multi-disc brake Spring applied, hydraulic released parking brake
Two-speed function High/low speed hydraulic switching
Speed sensor Inductive or Hall effect sensor
Freewheeling Mechanical disengagement option
Flushing valve Cooling for high-duty cycle operation

10. Operating Conditions

Item Specification
Hydraulic fluid Mineral oil (HLP/HVLP), biodegradable fluids optional
Viscosity range 10 – 1000 cSt (operating dependent)
Oil cleanliness ISO 4406: 18/16/13 or better
Ambient temperature -30°C to +80°C (typical system dependent)
Max oil temperature 80 – 90°C
Bosch Material No. Model Code Series Frame Size Displacement Configuration
R921812481 AEMCR10A1070G158Z32A0M1L11SO519B MCR-A MCR10 1070 cc/rev AE Version
R921812479 AEMCR10A1070G158Z32B7M1L11SO519B MCR-A MCR10 1070 cc/rev AE Version
R921812482 AEMCR10A1120G158Z32A0M1L11SO519A MCR-A MCR10 1120 cc/rev AE Version
R921812480 AEMCR10A1120G158Z32B7M1L11SO519A MCR-A MCR10 1120 cc/rev AE Version
R921812907 AEMCR10A780A75Z32B5M1L42P3SO999 MCR-A MCR10 780 cc/rev AE Version
R921812879 AEMCR5A380A60Z33B4M1L12F0SO506 MCR-A MCR5 380 cc/rev AE Version
R921813111 MCR10A1120A75Z32A0M1L11SO506A MCR-A MCR10 1120 cc/rev Standard
R921811933 MCR10A1250A75Z32B7M1L42 MCR-A MCR10 1250 cc/rev Standard
R921812905 MCR10A1250A75Z32B7M1L42SO506A MCR-A MCR10 1250 cc/rev Standard
R921812658 MCR10A1250G137Z33B4M1L12SO564D MCR-A MCR10 1250 cc/rev Standard
… … … … … …

A: We are factory and trading company.

A: Generally it is 3-5 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.

A: We can provide samples, but not for free.

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

If you have more questions, pls feel free to contact us as below:

sales@bailehydraulic.com

WeChat/WhatsApp：0086 18060096097

Related products