R911311482 (MHD115A-035-PG0-BA)

MHD Synchronous Motors

Bosch Rexroth Indramat MHD115A-035-PG0-BA Main (Front Left) image

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The R911311482 (MHD115A-035-PG0-BA) is a Bosch Rexroth servo motor featuring a multiturn absolute digital encoder for position detection exceeding 4096 revolutions. It employs natural convection cooling, has no holding brake, and provides a continuous standstill torque of 32.0 Nm with a current draw of 31.5 A. The unit delivers 12.6 kW rated power at 3000 RPM and operates up to a maximum speed of 4500 RPM. The plain shaft design includes a seal, the winding resistance is 0.46 ohms, and insulation class F along with IP65 protection rating and an additional coating ensure robust operation in demanding environments. Housing includes a side B power connector, centering diameter of 180 mm, flange size 192 mm, and motor size 115 length A.

Technical Specifications

Rated torque
8.5 (natural cooling at 60 K)

Voltage
345 volts

Rated speed
3000 RPMs

Thermal time constant
60 minutes (natural cooling at 100 K)

Continuous torque
36.5 Nm (current consumption of 31.5 A)

Operating temperature
0 to +40 degrees Celsius

Storage and transportation temperature
-20 to +80 degrees Celsius

Altitude
1000 meters above sea level

Encoder type
multiturn absolute digital

Power connector location
A-side of the housing

Shaft
output plain shaft with a sealing ring

Winding resistance
0.46 ohms (surface-cooled at 60/100 K temperature)

Rated power
12.6 kW (surface-cooled at 60/100 K temperature)

Moment of inertia
65.0 x 10-4 kgm2

Maximum speed
4500 RPMs

Insulation
class-F

Protection rating
IP65

Protective coating
Black Paint.

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Internal Product Review

The Bosch Rexroth MHD115A-035-PG0-BA servo motor integrates digital feedback technology with a relative position detection system for precise movement. Designed with a 192 mm flange, sealed plain shaft, and natural convection cooling, it ensures efficient performance. It’s widely applied in automated packaging, pick-and-place robotics, and high-speed conveyor operations.