MKD112C-058-KP3-AN
MKD Synchronous Motors
The MKD112C-058-KP3-AN is a synchronous motor manufactured by Bosch Rexroth Indramat as part of the MKD Synchronous Motors series, delivering a continuous torque at standstill of 38.0 Nm and a peak torque of 70 Nm. It features resolver feedback w/ integrated encoder for absolute position detection (>4096 revs), a shaft with keyway and seal, a holding brake with 70 Nm torque, standard water cooling, an output connector, a maximum speed of 4500 RPM, a flange size of 192 mm, and a continuous current of 20.0 A.
Technical Specifications
Shaft Design
Shaft with keyway
Shaft Seal
Yes
Holding Brake
With holding brake
Holding Brake Torque
70 Nm
Other Designs
None
Encoder Type
Resolver feedback w/ integrated encoder
Position Detection
Absolute (>4096 revs)
Continuous Torque at Standstill
38.0 Nm
Motor Length
C
Motor Size
112
Flange size
192 mm
Connection Type
Output connector
Product type
Servo Motor
Winding Code
058
Cooling Method
Standard water cooling
Max Speed
4500 RPM
Motor Type
Synchronous Motor
Peak Torque
70 Nm
Continuous Current
20.0 A
Frequently Asked Questions
What thermal advantages does the MKD112C-058-KP3-AN’s standard water cooling confer compared with purely convection-cooled variants?
The liquid heat extraction lowers winding/iron temperatures at equivalent load for enabling sustained operation at 20 A without derate in dense cabinets. Its reduced thermal drift helps maintain tight servo gains over extended duty cycles.
Why pair a 70 Nm holding brake with a 38.0 Nm continuous stall torque on MKD112C-058-KP3-AN?
The brake’s higher static torque secures vertical or overhauling loads during power loss or E-stop. It decouples load retention from electromagnetic torque production, preserving axis position without energizing the motor.
How does the keyed, sealed shaft on MKD112C-058-KP3-AN affect coupling design and ingress protection?
The keyway provides positive torque transmission without shrink-fit, easing serviceability. The shaft seal limits coolant and dust ingress at the bearing, prolonging lubricant life and minimizing runout growth.
What field-weakening considerations apply when running MKD112C-058-KP3-AN near 4500 rpm while preserving resolver accuracy?
Limit d-axis current to maintain demagnetization margins and voltage reserve. Recalibrate velocity observers at high speed; ensure resolver-to-digital tracking bandwidth handles increased electrical frequency without count slip.
How does the “058” winding code influence drive DC-bus sizing and regenerative energy handling on MKD112C-058-KP3-AN?
The winding constant sets back-EMF and current demand versus speed; confirm DC-bus voltage aligns with the 4500 rpm corner. Provide sufficient braking resistor capacity or shared-bus absorption for decel-intensive motion profiles.
Common Misspellings
MKD 112C-058-KP3-AN
MKD-112C-058-KP3-AN
MKD112C-O58-KP3-AN
MKD112C058KP3AN
MKD112C 058 KP3 AN
mkd112c-058-kp3-an
Internal Product Review
The MKD112C-058-KP3-AN motor is engineered by Indramat that possess a a keyed, sealed shaft with resolver-based absolute feedback for multi-turn positioning. It uses standard water cooling for thermal stability and supports up to 20 A of continuous current. This AC motor provides 38 Nm stall torque at up to 4500 rpm and it suits CNC machining, packaging lines, printing presses and textile handling.
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