R911279424 (MHD112C-058-PP3-AN)
MHD Synchronous Motors
Technical Specifications
Holding Brake Presence
Yes
Frame Size
112
Frame Length
C
Winding Code
058
Motor Housing Length
458mm
Centering Diameter
130mm
Flange Size
192mm
Shaft Design
With sealing ring and key
Shaft Diameter
32mm
Power Connector Location
Side A
Holding Brake Holding Torque
70Nm
Holding Brake Rated Voltage
24V
Holding Brake Rated Current
1.29A
Holding Brake Connection Time
53ms
Holding Brake Disconnection Time
97ms
Holding Brake Weight
3.8kg
Motor Weight
45kg
Total Package Weight
48.8kg
Peak Current
239A
Torque Constant at 20C
0.8Nm/A
Voltage Constant at 20C
72.7V/1000 RPM
Winding Resistance at 20C
0.12 Ohms
Winding Inductivity
0.12 millihenry
No of Pole Pairs
4
Feedback Type
Multiturn absolute encoder
Cooling Method
Natural convection or surface cooling
Rated Speed with 60K Overtemperature (Natural Convection)
2000RPM
Rated Torque with 60K Overtemperature (Natural Convection)
15.3Nm
Rated Output Current with 60K Overtemperature (Natural Convection)
15.2A
Rated Voltage with 60K Overtemperature (Natural Convection)
148V
Frequently Asked Questions
What role does the 70 Nm holding brake play on the MHD112C-058-PP3-AN during power-off or fault conditions?
The brake clamps the rotor with 70 Nm to secure vertical or overhauling loads when torque current is absent. It enables controlled stops, protects mechanics during faults and simplifies safety compliance for suspended tooling.
How does the liquid-cooled housing of the MHD112C-058-PP3-AN affect thermal behavior during high-duty cycles?
The liquid circulation in the stator jacket extracts losses for keeping windings within limits during sustained duty. It stabilizes torque and reduces thermal derating that is suitable for enclosed cabinets and dense multi-axis packaging or printing machines.
Why is the digital servo feedback with integrated absolute (>4096 rev) encoder advantageous on MHD112C-058-PP3-AN?
The integrated multi-turn absolute encoder (>4096 revolutions) preserves axis position after a power cycle for avoiding homing sequences and downtime. Its digital commutation yields precise phase alignment and smoother torque at crawl speeds for accurate indexing and registration.
How do the 130 mm centering diameter and 192 mm flange influence alignment and structural stiffness?
The 130 mm pilot establishes concentricity with the machine face for preventing radial misalignment and coupling fretting. Its 192 mm square flange increases joint rigidity to improve dynamic positioning fidelity during reversals and reducing bearing loads from misaligned fastening surfaces.
What reliability benefits come from the keyed, sealed shaft on the MHD112C-058-PP3-AN?
It transfers torque without relying solely on frictional clamping for preventing hub slippage during emergency deceleration. Its contact seal limits coolant or dust ingress for preserving bearing grease and maintaining encoder signal quality on MHD112C-058-PP3-AN across extended duty cycles.
Common Misspellings
MHD112C058PP3AN
MHD112C 058 PP3 AN
mhd112c-058-pp3-an
Internal Product Review
The Rexroth Indramat’s MHD112C-058-PP3-AN servo motor pairs multi-turn absolute digital feedback that offers greater than 4096 revolutions for positioning with liquid cooling for stable motion. It delivers 38 Nm at standstill and includes a 70 Nm holding brake. This unit is equipped with a keyed, sealed shaft and 130/192 mm mounting for easing integration in packaging, printing and CNC equipment.
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