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R911279599 (MHD112D-024-NG3-BN)

MHD Synchronous Motors

  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

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5 Minutes 2 Seconds

The MPN R911279599 (MHD112D-024-NG3-BN) is a synchronous servo motor from Bosch Rexroth, designed for applications requiring high dynamic performance, such as machine tools and automated systems. This model features a holding brake with 70.0 Nm torque, a plain shaft with sealing ring, and a cooling system utilizing liquid cooling. It supports a continuous torque of 48.0 Nm at standstill, peak current of 59.0 A, and operates at up to 2000 min⁻¹. The motor employs digital servo feedback (HSF) for position detection and uses a relative encoder. It has a flange size of 192 mm, centering diameter of 130 mm, and an output connector for power connection at side B. Encapsulation meets IP65 for environmental protection, and the unit supports operation at altitudes up to 1000 m.

Technical Specifications

MHD Motor Size
112

Characteristic Motor Speed
2000 min⁻¹

Peak Current
59.0 A

Low Inertia Mass
Yes

Commutation Type
Electronic

Shaft Type
Plain with sealing ring

Torque Constant (at 20°c)
1.28 Nm/A

Winding Resistance
1.45 Ohms

Cooling Method
Natural convection or surface cooling

Feedback Type
Digital Servo

Power Connection
Flanged socket at side B

Housing Color
Prime black

Mounting Altitude
1000 m above sea level or less

Protection Degree
IP 65

What practical advantages does liquid cooling provide on the MHD112D-024-NG3-BN in closed cabinets?

It shunts losses out of the enclosure for sustaining torque under heavy cycles and reducing cabinet thermal load compared with convection-cooled frames. It supports tighter enclosures and improves component life in demanding automation cells.

Why use digital servo feedback (HSF) with relative position detection on this model, and what does it imply for commissioning?

The HSF provides precise velocity/position signals for fast loops and smooth interpolation, while the relative variant requires a homing routine at power-up. It simplifies wiring/commissioning versus some resolver chains while maintaining high control fidelity.

How is the 70.0 Nm holding brake on the MHD112D-024-NG3-BN applied in vertical or safety-critical axes?

The integrated brake prevents back-driving on power loss and secures vertical or overhung loads during e-stop for reducing drift risk. It complements the drive’s Safe Torque Off strategy in machine tools and handling systems.

What do the 130 mm centering diameter and 192 mm flange accomplish mechanically?

This geometry improves concentricity and face alignment, for raising shaft stiffness under dynamic radial loads and easing repeatable installation. Its standardized pilot/flange also simplifies interchange across MHD size-112 variants during service.

How do the plain shaft and shaft seal on MHD112D-024-NG3-BN impact coupling choice and ingress resistance?

The plain shaft supports shrink-fit, clamp or sleeve couplings for low-runout assemblies, while the seal resists contamination at the interface. It together with sealed bearings reduces maintenance in dusty or oily environments.

MHD112D024NG3BN

MHD112D 024 NG3 BN

mhd112d-024-ng3-bn

Internal Product Review

The Indramat’s MHD112D-024-NG3-BN servo motor is designed with a winding orientation that supports 48 Nm standstill torque. It includes a 70 Nm brake for safe operations and its liquid cooling maintains thermal stability. This motor has a 130 mm pilot and 192 mm flange that streamlines rigid mounting. Its side-B power and sealed plain shaft suits machine tools, packaging and printing automation systems.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MHD112D-024-NG3-BN.
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