MITSUBISHI

This is the Mitsubishi HG-KR / HG-KN series of AC servo motors, a 4th generation small-power low-inertia servo motor. Typical representative models include HG-KN43J-S100, HG-KR43BJ, etc.
HG-KR Series Servo Motors
Physical sample of HG-KN43J
Model Segmentation Explanation (taking HG-KN43J-S100 as an example)
HG: Mitsubishi AC servo motor series code
KN/KR: Low inertia small servo, compact in size, fast response; KR with electromagnetic brake, KN without brake
43: Power 400W (13=100W, 23=200W, 73=750W)
J: Standard flange installation, encoder plug side-mounted
S100: Incremental 22-bit high-precision encoder
Double black plugs: Power supply line for power, encoder signal line
II. Core Product Usage
Core Function
Servo motors combined with servo drivers achieve high-precision position, speed, and torque closed-loop control. Compared to ordinary motors / stepper motors, they have higher positioning accuracy, faster acceleration and deceleration response, stable low-speed torque, and support high-speed start-stop and multi-axis synchronization.
Main Industrial Application Scenarios
Numerical control processing equipment
Small CNC engraving machines, drilling machines, grinding machine feed axes, precise control of tool movement, micrometer-level positioning.
Automation production line equipment
Labeling machines, packaging machines, cutting machines: precise cutting of roll materials, precise labeling, film tension control during winding;
Transplanting mechanical hands, XYZ three-axis slide tables, loading and unloading mechanisms, rapid point-to-point transportation.
Electronic semiconductor equipment
SMT soldering machines, terminal pressing machines, inspection and sorting machines, dispensing machines, precise positioning of small components.
Textile / printing equipment
Printing machines, digital printers, winding machines, multi-axis synchronization to ensure no deviation in material movement.
Robots and special machines
Small four-axis mechanical hands, laser marking machines, screw locking machines, fixture rotating tables.
Unique Advantages of This Series (HG-KN/KR)
Low inertia design: rotor weight is light, acceleration and deceleration are extremely fast, suitable for high-frequency start-stop positions;
Compact size: smaller in size compared to the same power, saving equipment installation space;
22-bit high-resolution encoder: positioning accuracy far exceeds ordinary stepper motors, no step loss;
Optional brake model (suffix B): power-off locking of the shaft, preventing shaft sliding, essential for vertical-axis equipment;
Compatible with MR-JE economy type, MR-J4 high-performance two types of drivers, balancing cost and performance.
III. Complementary Combinations
The motor must be used with the same series servo driver:
HG-KN/KR → MR-J4-□B (high-performance) / MR-JE-□A (economy type)
Through pulses, bus (Modbus/SSCNET) and Mitsubishi FX/Q/L series PLC linkage, complete automated motion control logic.