Mitsubishi HG-SN Medium Inertia Servo Motor

The Mitsubishi HG-SN Medium Inertia Servo Motor is the benchmark servo motor for machine tools, semiconductor handling, and precision assembly automation across Saudi Arabia's rapidly expanding industrial base. Covering a power range from 0.1 kW to 7 kW with rated torques from 0.32 N·m to 22.3 N·m, the HG-SN series bridges the gap between the compact HG-KR low-inertia motor and the heavy-duty HG-RR series, making it the most versatile single-family choice for general-purpose motion applications. The HG-SN52J model — rated 0.5 kW at 3000 rpm — features an integrated 22-bit absolute encoder providing 4,194,304 pulses per revolution, delivering sub-micron positioning repeatability without a separate battery backup unit in conjunction with the MR-J4 or MR-J5 amplifier families. The IP67 ingress protection rating makes the HG-SN uniquely suited to Saudi Arabia's dusty, high-humidity coastal environments in Jeddah and Dammam, where IP54-rated motors suffer premature bearing contamination in open-loop packaging and food-processing lines.

The HG-SN's medium-inertia rotor design offers an inertia ratio that matches the load inertia of typical industrial machinery without requiring a gearbox or coupling mass correction in most applications. This directly reduces the commissioning time for one-shot auto-gain tuning on the MR-J4/J5 amplifier — Mitsubishi's adaptive vibration suppression function (advanced vibration suppression II) identifies and damps the first two mechanical resonance frequencies automatically, enabling stable high-speed operation even on long-reach robot arms or cross-slide structures with compliance. The motor winding insulation class F (155°C) and thermistor protection accommodate the high ambient temperatures encountered inside Saudi machine tool enclosures in summer months, where coolant temperatures and radiated heat can elevate the motor enclosure temperature to 45°C above the 40°C rated ambient before derating applies.

In the Kingdom of Saudi Arabia, the HG-SN servo motor underpins automation investment across Vision 2030's advanced manufacturing pillar: NIDEC-SHIMPO and other gearbox integrators deploy HG-SN motors on CNC turning centres sold to SABIC's Hadeed subsidiary; FANUC-alternative machine builders in the Saudi Packaging Machinery cluster around the Riyadh Dry Port select HG-SN as a direct replacement for legacy Japanese servo motors because of interchangeable flange dimensions; and inspection-line assembly robots at the recently opened GE Healthcare facility in Riyadh use HG-SN54J 1 kW motors on the gripper axes. The motor's flange-mount design (IEC 72-1 standard flanges from 60 mm to 130 mm square) ensures bolt-for-bolt compatibility with competitive products, minimising retrofit engineering cost on existing machine structures.

Razz Middle East maintains stock of the most popular HG-SN frame sizes in our Riyadh warehouse, with next-day delivery capability to Jeddah, Al Khobar, and Jubail. Our motion engineers provide inertia ratio analysis, cable routing diagrams, and MR-Configurator2 parameter files pre-loaded for standard application profiles, ensuring plug-and-play integration. Spare shaft seals and encoder connectors are also stocked locally for rapid maintenance response. All HG-SN motors carry Mitsubishi Electric's standard 18-month warranty from date of shipment, extensible to 36 months under the Razz service agreement.