MHD112C-058-PP3-BN

MHD Synchronous Motors

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The MHD112C-058-PP3-BN servo motor from Bosch Rexroth Indramat is part of the MHD Synchronous Motors series. It features a digital servo feedback encoder with integrated multiturn absolute position detection, a 70.0 Nm holding brake, liquid cooling housing, and a keyed shaft design. The motor delivers a continuous torque at standstill of 38.0 Nm and supports up to 4500 RPM. Power enters via an output connector on side B.

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
058

Frequently Asked Questions

What advantages does the digital servo feedback with multiturn absolute detection provide in commissioning and safety? (MHD112C-058-PP3-BN)

The integrated multiturn encoder supplies absolute position over >4096 revolutions for eliminating homing moves after power cycles. Its drive controllers read motor/loop data instantly for shortening commissioning while improving safe stop/hold behavior when combined with the holding brake.

Why is the 70 Nm holding brake significant for vertical axes and emergency stops on MHD112C-058-PP3-BN?

The brake torque secures suspended loads and resists back-driving during power loss or E-stop for protecting mechanics and workpieces. Its on lift, gantry and spindle-orient axes it keeps position until torque-producing current is re-established.

How do the mechanical interfaces (192 mm flange, 130 mm pilot) simplify retrofit of MHD112C-058-PP3-BN into legacy frames?

Its standardized mounting, 192 mm square flange with 130 mm centering helps align to existing gearboxes and machine plates without adapter rings. Its reduces alignment runout for improving coupling life and minimizing install time.

How does the keyed, sealed shaft and side-B power connector on MHD112C-058-PP3-BN impact integration and reliability?

The keyed shafts provide positive torque transmission and repeatable phase alignment to couplings, while the seal limits ingress at the journal. Its side-B power orientation eases cable routing in cabinets located behind the motor.

How does absolute feedback (>4096 rev) on MHD112C-058-PP3-BN reduce cycle time in multi-shift manufacturing?

The no-home startup means machines resume coordinated motion immediately after power-on for removing non-productive homing strokes. It compounds into measurable throughput gains, especially on synchronized webs and pallet transfer lines.

Common Misspellings

Internal Product Review

The Indramat’s MHD112C-058-PP3-BN servo motor combines liquid-cooled housing, digital servo feedback with multiturn absolute detection and a 70 Nm brake. It sustains 38 Nm torque at standstill and reaches 4500 rpm with a keyed, sealed shaft. This motor provides side-B power connector to flexible cable routing in applications like machine tools, packaging, textile automation and transfer systems.