MHD112D-024-NP3-AN

MHD Synchronous Motors

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The MHD112D-024-NP3-AN is a servo motor by Bosch Rexroth Indramat in the MHD Synchronous Motors series, offering liquid cooling and digital servo feedback (HSF) encoder with relative position detection. This motor size 112 unit delivers 48.0 Nm continuous torque at standstill and 70.0 Nm brake torque, features a 130 mm centering diameter, keyed shaft, and side-A output connector power connection.

Technical Specifications

Holding Brake
With holding brake

Holding Brake Torque
70.0 Nm

Housing Cooling Type
Liquid cooling

Encoder Type
Digital servo feedback (HSF)

Type of Position Detection
Relative

Continuous Torque at Standstill
48.0 Nm

Motor Length
D

Centering diameter
130 mm

Flange size
192 mm

Motor Size
112

Shaft Design
Keyed Shaft

Shaft Seal
Yes

Power Connection Direction
to side A

Power Connection Type
Output Connector

Product Type
Servo Motor

Winding Code
024

Frequently Asked Questions

How does the 70 Nm holding-brake torque interact with vertical-axis safety in CNC or gantry systems (MHD112D-024-NP3-AN)?

The integrated brake maintains load position on power-off for resisting back-driving on Z-axes or lifts. It complements safe-torque-off in the drive to reduce drift during e-stops and simplifying mechanical counterbalance sizing.

Why is a keyed shaft with a shaft-seal relevant for the MHD112D-024-NP3-AN in wash-down or dusty lines?

The keyway per DIN practices provides positive mechanical torque transfer and repeatable phasing. Its seal limits ingress along the shaft for supporting IP-style protection measures used around fluids, powders and paper dust in packaging or textile processing.

What advantages does the digital servo feedback (HSF) with relative position detection provide for multi-axis synchronization?

The HSF feedback delivers fine electrical angle resolution and low latency for improving current/velocity loop bandwidth. Its relative detection simplifies homing strategies with external markers for enabling rapid phase alignment for coordinated axes in packaging form-fill-seal or print register control.

How does the liquid-cooling scheme in the MHD112D-024-NP3-AN influence continuous torque stability during high duty cycles?

Its liquid cooling extracts losses directly from the stator jacket for limiting hot-spot growth and winding temperature rise. It keeps copper resistance drift low for sustaining the specified 48 Nm standstill torque and reducing thermal derating during dense motion profiles.

What commissioning notes apply when homing a relative-encoder MHD112D-024-NP3-AN on linear axes?

It is recommended to provide a repeatable reference via limit switch or marker pulse and store offsets in the drive and validate polarity as well as commutation alignment at low current to prevent load shock during first motion.

Common Misspellings

Internal Product Review

The Bosch Rexroth Indramat’s MHD112D-024-NP3-AN servo motor is designed with a mechanically balanced keyed design of shaft that possess an embedded sealing ring as well for protection. It provides relative position detection through its integrated HSF digital feedback system. This motor delivers 48 Nm of continuous torque and it includes a 70 Nm brake. Its 130 mm centering diameter and side-A output connector suit printing, packaging, textiles, CNC tooling and robotics assemblies.