The Mitsubishi HF-H354S belongs to Mitsubishi Electric’s HF series of AC brushless rotary servo motors, designed for demanding factory automation tasks such as CNC machine tools, industrial robots, packaging, and high‑speed positioning systems. With a rated output of 3.5kW at 3000rpm (200Hz), it delivers high torque density and fast dynamic response, making it suitable for axes that require rapid acceleration, deceleration, and precise speed control. The motor is typically paired with Mitsubishi servo amplifiers to form a closed‑loop system featuring advanced vector control, smooth low‑speed operation, and excellent speed/position stability.
The HF-H354S uses a 3‑phase 393V winding with 7.8A rated current and is built on a compact, robust frame weighing about 19kg, helping to reduce machine footprint while maintaining mechanical rigidity. It is normally supplied with a straight shaft and an integrated absolute feedback encoder (18‑bit class in variants such as HF‑H354S‑A48), enabling high‑resolution position feedback without homing on power‑up. High‑quality bearings, optimized rotor design, and efficient cooling support continuous duty in harsh industrial environments, while Mitsubishi’s ecosystem ensures easy integration, diagnostics, and energy‑efficient operation.
