MHD041B-144-PG1-UN REXROTH Servo Motor

Description

REXROTH MHD041B-144-PG1-UN Servo Motor Introduction & Technical Specifications
Product Introduction
Brand: Bosch Rexroth (Rexroth)
Model: MHD041B-144-PG1-UN
Product Name: MHD Series Permanent Magnet Synchronous Servo Motor
Origin: Germany

Detailed Technical Parameters
The motor features overall dimensions of 198mm × 172mm × 310mm, with an 82mm standard flange mounting size and a 50mm centering diameter for the mounting base. It adopts a solid plain output shaft equipped with a built-in shaft seal to prevent dust ingress and grease leakage. The total net weight of the motor is 11.5 kilograms.
It operates with a three-phase rated voltage of 230V AC, which is fully compatible with conventional 220V industrial servo power supplies. The rated continuous working current is 4.5A. Its rated output power is 1.4kW, paired with a continuous rated torque of 1.9Nm, while the integrated power-off holding brake provides a locking torque of 22.0Nm for reliable mechanical positioning retention.
The standard operating speed range spans from 100rpm to 4000rpm, with support for limited short-term overspeed operation. The matched PG1 encoder offers 17-bit high-resolution detection, enabling precise digital position feedback. Designed in compliance with ISO 14 international flange mounting standards, the motor housing achieves an IP65 protection rating, providing effective resistance against dust and water splash.
It adopts natural convection air cooling with no external fan required. The applicable ambient temperature ranges from -10℃ to +40℃, ensuring stable operation under conventional industrial temperature and humidity conditions. Optimized moderate rotor inertia delivers rapid speed response and minimal position overshoot, while the 144 winding code represents a low-inductance winding design for superior high-frequency dynamic control performance.
Core Product Characteristics
Boasting outstanding torque density, the motor outputs powerful torque within a compact footprint, supporting miniaturized and compact equipment mechanical design.
The integrated 17-bit multi-turn absolute encoder eliminates repeated zero calibration after power failure, effectively improving equipment debugging efficiency and operational stability.
Constructed with high-strength cast aluminum housing and a reinforced anti-vibration, anti-corrosion structure, it adapts to harsh industrial workshop environments with dust, humidity and frequent vibration.
It supports mainstream industrial bus protocols including SERCOS III, EtherCAT and Profinet, enabling seamless docking with Rexroth servo drives and mainstream third-party motion controllers.
Equipped with excellent short-time overload capability, it meets the demands of instantaneous acceleration and heavy-load startup. The permanent magnet structure ensures high energy conversion efficiency and reduces long-term operating energy consumption.
The standard built-in power-off holding brake effectively locks the motor shaft, preventing position offset for vertical-axis mechanical structures.
The product has passed CE and UL industrial safety certifications, fully complying with global mainstream industrial electrical safety specifications.

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