Mitsubishi Electric Q312B Programmable Logic Controller

The Mitsubishi Electric HC-SFS301K is an AC servo motor from the MELSERVO HC-SFS series, engineered for high-power, high-precision motion control in industrial automation systems. It delivers a rated output of about 3.0 kW at up to 3000 RPM from a 200–230 VAC supply, with a keyed shaft and an integrated electromagnetic brake (K variant) to secure loads. An absolute encoder with high resolution (typical 17-bit) provides reliable positioning, while flange mounting and natural- or fan-assisted cooling support versatile installation on CNC machines, material handling lines, and heavy-duty equipment. This medium inertia servo motor is designed for applications demanding stable torque, precise motion, and robust load-holding, operating from 0°C to 40°C and typically offering IP65 protection (excluding shaft). In practice, it is used for CNC machining centers, automated production lines, and packaging equipment where consistent performance and accurate control are critical. For maintenance and retrofits, Mitsubishi lists HF-SP301B as a common replacement, underscoring its role in legacy servo motor upgrades and replacements within Mitsubishi’s servo ecosystem.