MITSUBISHI HG-H453BS-D74 AC Servo Motor 3500rpm 4.5kW Brake D74

Buy online your MITSUBISHI HG-H453BS-D74 AC Servo Motor from our e-store Cnc-shopping, specialist in CNC machine-tools spare parts.

The MITSUBISHI HG-H453BS-D74 is a high-performance AC servo motor from the HG series, designed for CNC machine tools and industrial automation applications that require precise motion control and reliable positioning. With a rated output of 4.5 kW and a maximum speed of 3500 rpm, it delivers the torque and dynamic performance needed for demanding machine axes and continuous-duty industrial operations.

This model features an integrated D74 holding brake, which securely maintains axis position when power is removed. The brake is particularly beneficial for vertical axes, rotary positioning systems, and load-holding applications where preventing unintended movement is critical during machine shutdowns, maintenance procedures, or emergency stop conditions.

The motor is equipped with an OSA676S5AS absolute encoder offering an exceptionally high resolution of 67,108,864 pulses per revolution. This advanced feedback system provides highly accurate position information, enabling precise closed-loop control, excellent repeatability, and smooth motion performance when paired with a compatible MITSUBISHI MELSERVO servo amplifier.

Featuring a 176 mm square flange and a straight shaft, the HG-H453BS-D74 is commonly installed on machining centers, CNC lathes, transfer machines, feed axes, vertical Z axes, rotary positioning systems, and other industrial automation equipment. For replacement applications, matching the complete motor reference is essential to ensure compatibility with the existing encoder configuration, brake option, connector layout, and servo drive parameters.

Manufactured in Japan, this servo motor is frequently selected as a replacement solution for machines experiencing bearing wear, encoder failures, brake malfunctions, or other motor-related issues. Many maintenance departments keep this exact model in spare inventory to reduce downtime and ensure rapid recovery of critical production equipment.

Each motor can be tested on dedicated servo test benches and CNC simulation systems to verify motor operation, encoder feedback accuracy, electrical performance, and brake functionality before shipment. Depending on availability, the motor may be supplied as a replacement, tested, refurbished, or exchange unit. Repair services may also be available to support legacy CNC systems and extend the operational life of existing industrial machinery.

Frequently asked questions about HG-H453BS-D74:

Which MITSUBISHI servo amplifiers work with this motor
Pair the motor with an amplifier rated for 4.5 kW and the correct encoder option for the HG-H series. Share your drive part number and machine details and we will verify the match against MITSUBISHI pairing data.

Is the integrated brake suitable for vertical axes
Yes, the built-in holding brake is intended to keep the axis in position at standstill and during power-off. Control it via the amplifier’s brake output and confirm load conditions meet the brake’s holding capacity within the machine specification.

Can this be used as a drop-in replacement for an existing HG-H453BS-D74
Yes, when the full code matches and the same options are maintained. Verify flange size, shaft details, connectors and encoder option to ensure a direct mechanical and electrical swap.

Do you support repair or exchange for defective motors
We offer repair and exchange programs depending on incoming condition and stock. This helps reduce lead time and keeps your spare inventory optimized for critical machines.