R911280056 (MKD112C-024-KG3-BN)

MKD Synchronous Motors

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The R911280056 (MKD112C-024-KG3-BN) is a Bosch Rexroth servo motor designed for industrial automation applications. This motor features a plain shaft with seal, integrated resolver feedback for absolute position detection over more than 4096 revolutions, and a holding brake with 70 Nm torque. It achieves continuous standstill torque of 38.0 Nm and a rated torque of 48 Nm. The winding code is 024, supporting operation at speeds up to 4500 RPM and a rated power output of 12 kW. The unit has a centering diameter of 130 mm, a motor length of type C and motor size 112, and uses a radial cooling system. It is equipped with lifetime-lubricated bearings and electronic commutation for sustained start-stop performance and optimal torque across a wide speed range. The stator design enhances heat dissipation and overload capacity.

Technical Specifications

Product Type
Servo Motor

Industry Use
Industrial Automation

Protection Rating
IP 65

Characteristic Speed
2000 rpm

Peak Speed
4000 rpm

Continuous Torque at 60K Motor Overtemperature
38 Nm

Peak Current
120 A

Winding Resistance
0.44 mH

Lubrication
Grease lubricated bearings

Design
Maintenance free, Brushless

Frequently Asked Questions

How does the 3.18 Nm/A torque constant on MKD112C-024-KG3-BN influence current loop sizing and drive selection?

It defines torque per ampere that directly impacts commanded current, amplifier headroom and thermal utilization. Its correct Kt matching with Rexroth digital controllers keeps current loops linear and minimizes copper losses during continuous S1 operation.

What is the functional role of the 70 Nm holding brake on MKD112C-024-KG3-BN for vertical or indexing axes?

The electrically-released brake locks the shaft when de-energized for preventing gravitational creep or drift during e-stop and homing. It stabilizes position during power loss to enable safe fixturing and repeatable restart sequences.

Why use resolver-based absolute position detection (>4096 revs) on MKD112C-024-KG3-BN instead of an optical encoder?

The resolvers are tolerant to electrical noise, temperature swings and vibration, while the multiturn absolute memory removes homing cycles after outages. It shortens cycle time and improves startup repeatability in automated lines.

How do IP65 protection and a shaft seal benefit MKD112C-024-KG3-BN in packaging and printing environments?

They resist particulate and low-pressure washdown ingress for protecting bearings and feedback interfaces in ink, dust or moisture-laden zones. It supports uptime on conveyors, folders and form-fill-seal stations.

What retrofit advantages come from the MKD112 frame (192 mm flange) and Side-B connector orientation on MKD112C-024-KG3-BN?

The standardized flange envelope eases drop-in replacements across MKD112 variants. Its side-B power/feedback exits simplify cable routing away from guards to improve EMC and service access in tight cabinets.

Common Misspellings

Internal Product Review

The MKD112C-024-KG3-BN servo motor from Indramat delivers 38 Nm stall torque. It rated torque constant is specified as 3.18 Nm/A and it has IP65 sealing on a plain-shaft. This motor uses resolver-based absolute feedback with 4096 revolutions and it is equipped with a 70 Nm brake to support precise positioning. It fits into machine-tool axes, packaging lines and printing/handling automation, while operates at 3000 RPM speed.

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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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

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.