R series. Small and medium capacity series featuring high power rate
T series. Medium and large capacity series featuring high torque
S series. Series having a broad range of offerings from small capacity to large capacity

High performance and high efficiency PM motorPM Servo Motor

We offer the series of PM servo motor upto the world's largest class of 400 kW.
It features high power rate, high response, and high output.

  • Low voltage
    Rated voltages are 200 V class and 400 V class.
  • AC
    It is an AC-driven motor.
  • For variable speed machinery
    It is a motor for variable speed machinery.
  • High efficiency
    Its high efficiency realized energy-saving.
  • Fully enclosed type
    It has an enclosure that is protected against solid foreign objects of 1.0 mm Ø except the external fan part (IP4X)/.
  • Horizontal type
    The installation method is horizontal.
  • Vertical type
    The installation method is vertical.
  • Flange
    The installation method is flange mounting.

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Product Features

Efficiency was drastically improved by reducing the heat loss of the main body of the electric motor. In addition, it demonstrates an excellent energy saving effect. This was made possible by converting the oil hydraulic pump doing the continuous operation into motorized oil hydraulic servo.
Further, not only do we provide the standard series but we also offer custom made model to meet customers' needs. We could handle unique shapes such as a thin type, a hollow shaft type, and a built-in type.
Three series of "high response (R series)," "high torque (T series)," and "general purpose (S series)" are provided to meet the customer's needs and the mechanical characteristics. The maximum torque can be selected from 4 types of 150%, 200%, 250%, and 300%.
Various types and various optional designs of the structure of the motor are available. We provide the optimal product to nicely fit with the customer's machine design.

  • Implementation of energy saving and high efficiency of the oil hydraulic servo system
  • Compact size, high power rate, high response
  • Series of various capacities
  • Customizable

Applications and Solutions

It is widely adopted to motorize oil hydraulic equipment.

For Active vibration control system
It is a system that can buffer seismic forces to reduce building tremors from earthquake or strong wind by controlling the oscillating body installed on the roof of the building. A low inertia PM motor is applied as a drive unit for such system. Compared with the induction motor with same output, a low intertia PM motor could be made in a compact design and it is ideal as it could be put into the limited installation space of the building rooftop.
For injection molding machine
A servo motor has been used for this application which requires high response and high torque, with a power rate equivalent to that of oil hydraulic equipment. The gearless model is also possible.
For press machine
Amid the rising needs for energy saving, a large capacity servo motor has been applied replacing the hydraulic motor.


Name of series Motor output(kW)
R series(high response) 3.7-75
T series(high torque) 45-400
S series(general purpose) 3.7-400

For the specifications not covered in this table, please feel free to contact us by filling this Internet inquiry form.

What is a PM motor

The PM motor is a permanent magnet type synchronous motor that does not require any DC excitation. The rotor has the same structure as a cage type induction motor, and it has a built-in magnet to exhibit the performance of a synchronous motor.
Because it can be started with commercial electric power and operated by synchronizing the frequency, highly accurate speed control can be easily performed without feedback control such as encoding.

Quick reference table

This is a quick reference table showing the ranges of each series motor voltage and capacity . Just one look, you could see our offerings.

PM motor

Category Voltage Output(kw)

PM servo motor

200 V / 400 V Series

Self-starting PM motor

200 V / 400 V Series

Energy saving PM motor

200 V / 400 V Series

Sensorless PM motor

PM Motors for Elevator

200 V / 400 V Series
Inquiries about this product

Frequently Asked Questions (FAQs) on this product