MHD112C-035-PP3-BN

MHD Synchronous Motors

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The MHD112C-035-PP3-BN is a servo motor manufactured by Bosch Rexroth Indramat, part of the MHD Synchronous Motors series. It features a liquid cooling housing and a digital servo feedback w/ integrated encoder offering absolute position detection for over 4096 revolutions. With a continuous standstill torque of 38.0 Nm and a holding brake torque of 70.0 Nm, it ensures secure holding. Additional specs include a keyed shaft with seal, a centering diameter of 130 mm, flange size of 192 mm, and side B 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 w/ integrated encoder

Type of Position Detection
Absolute (>4096 revolutions)

Continuous Torque at Standstill
38.0 Nm

Motor Length
C

Centering diameter
130 mm

Flange size
192 mm

Motor Size
112

Shaft Design
Keyed Shaft

Shaft Seal
Yes

Power Connection Direction
to side B

Power ConnectionType
Output Connector

Product Type
Servo Motor

Winding Code
035

Frequently Asked Questions

For MHD112C-035-PP3-BN, how is the 70 Nm holding-brake torque typically applied in machinery safety?

The brake secures vertical or overhung axes during E-stop and power-off for preventing drift. Its correct sizing against reflected load inertia and screw back-drive ensures static holding while drives are disabled.

What does the 38.0 Nm continuous torque at standstill imply for servo sizing on holding or inching axes?

It indicates the motor can produce 38 Nm indefinitely at zero speed with adequate cooling for simplifying axes that dwell under load. Its designers can reserve dynamic margin for acceleration without exceeding thermal limits.

Why is a keyed shaft with seal beneficial on MHD112C-035-PP3-BN in dusty or coolant-rich environments?

The key provides slip-free torque transmission to pulleys or pinions, while the shaft seal limits ingress of coolant and particulates. Its combination preserves coupling integrity and bearing life.

How do Ø130 mm centering and a 192 mm flange on MHD112C-035-PP3-BN aid mechanical interchangeability?

Those standardized pilot and bolt-circle dimensions simplify retrofits into ISO-style gearboxes and frames. Its consistent datum surfaces improve concentricity for reducing coupling misalignment and vibration in high-precision assemblies.

What advantages does its digital servo feedback with integrated multiturn absolute encoder (>4096 revolutions) provide?

The multiturn absolute tracking eliminates homing after power cycles and supports deterministic positioning across gear reductions. Its integrated electronics reduce cabling, improve noise immunity and enable higher control bandwidths for tight contouring.

Common Misspellings

Internal Product Review

The Rexroth Indramat’s MHD112C-035-PP3-BN servo motor comes in an IP65 housing that gets cooled through liquid cooling mechanism. It uses keyed shaft with seal and digital servo feedback with absolute encoder. This unit delivers 38 Nm continuous standstill torque and possesses a 70 Nm holding brake. It offers flange mounting and side-B power connection to suits packaging, printing, textiles and CNC machine tools.