R911296590 (MHD112C-024-PP0-BP)

MHD Synchronous Motors

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The R911296590 (MHD112C-024-PP0-BP) is a brushless industrial synchronous servo motor with permanent magnet excitation, manufactured by Rexroth Indramat. It features a keyed shaft with seal, natural convection housing cooling with IP68 protection, and does not include a holding brake. The unit operates with digital servo feedback using an integrated encoder, supporting absolute position detection over 4096 revolutions. Continuous torque at standstill is rated at 38.0 Nm, with a nominal input current of 21.6 A at 2500 rpm, generating approximately 44.1 Nm and reaching up to 4000 rpm at a maximum current of 120 A. The flange size is 192 mm, centering diameter is 130 mm, and the power connection is directed to side B through an output connector. The torque constant is 1.6 Nm/A, and the voltage constant is 145.5 V/1000 rpm. Component specifications indicate motor size 112, motor length C, and winding code 024.

Technical Specifications

Product Type
Industrial Synchronous Motor

Excitation Type
Permanent Magnet

Commutable Peak Torque Range
Broad

Start-Stop Operation Frequency
High

Bearing Type
Grease-lubricated Ball Bearings

Bearing Service Life
30,000 hours

Operating Instructions
Motor Housing

Rated Input Current
21.6 amperes

Rated Output Torque
44.1-newton meters

Speed at Rated Current
2500 revolutions per minute

Max Input Current
120 amperes

Peak Speed
4000 revolutions per minute

Temperature for Operation
20 degrees Celsius

Torque Constant
1.6-newton meters per ampere

Voltage Constant
145.5 volts per 1000 revolutions

Frequently Asked Questions

How does the absolute multi-turn encoder in the MHD112C-024-PP0-BP improve commissioning and recovery after power loss?

It preserves position across >4096 revolutions to eliminate homing cycles and reduces start-up sequences after interruptions. It limits fixture collisions and increases throughput consistency on indexing tables and multi-axis gantries.

How does the 38 Nm continuous torque at standstill of MHD112C-024-PP0-BP translate to motion-axis design?

It enables stiff velocity loops with ample margin for static friction and process loads for improving contouring on mid-inertia axes. Its designers can pair moderate gear ratios without sacrificing holding ability during low-speed interpolation.

Why is a keyed shaft with shaft seal advantageous for MHD112C-024-PP0-BP in industrial duty?

The keyway provides positive mechanical drive for pulleys/couplings under cyclic torque for minimizing micro-slip. Its seal limits ingress of coolant and paper/food particulates for sustaining encoder integrity and bearing life in washdown-adjacent environments.

Which Bosch Rexroth drive families are typically used with MHD motors like MHD112C-024-PP0-BP, and why?

The MHD motors are specified to run with Rexroth/Indramat digital intelligent drive controllers (e.g., DDS/DKC generations) for ensuring correct feedback handling and parameter sets. Its matching controller families simplifies startup and preserves safety/diagnostic behavior.

What benefits arise from side-B power connector orientation on MHD112C-024-PP0-BP in tight machine bays?

The routing exits away from guarding or moving members for reducing bend-radius stress and EMI coupling into sensor harnesses. Its panel layouts gain clearance for drip-loops and serviceability without disturbing adjacent axes.

Common Misspellings

Internal Product Review

Bosch Rexroth manufactures the MHD112C-024-PP0-BP servo motor that delivers 38 Nm continuous torque and it includes a digital feedback encoder of greater than 4096-turn for position detection. It has a keyed, sealed shaft, 192 mm flange and 130 mm pilot for simplifying mounting. This unit has a side-B output connector and IP68 housing to suit installation in packaging, printing, machine-tool and materials-handling lines.

1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Indramat USA 1 Year Warranty

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.