HF-SP421B Rated speed 1000r/min Rated output 4.2kw power servo motor 11.0kW

Rated speed 1000r/min Rated output 4.2kw HF-SP421B power servo motor 

HF-SP421B Description

HF-SP421B Key Features

• Medium Inertia Design: Balances high torque output and dynamic response, ideal for heavy‑load, medium‑speed motion systems.
• High‑Resolution Encoder: 18‑bit absolute encoder (262,144 pulses/rev) for ultra‑precise positioning and low‑speed stability.
• Built‑in Electromagnetic Brake: Provides safe holding torque when power is off, preventing unintended axis movement and enhancing operational safety.
• IP67 Protection Rating: Fully sealed against dust ingress and temporary water immersion, suitable for wet, dusty, and harsh industrial environments.
• High Overload Capacity: 3× rated torque (120 Nm) peak output for short‑duration heavy loads and rapid acceleration demands.
• Low Vibration & Noise: Precision rotor balancing and optimized winding design for smooth, quiet operation across speed ranges.
• Robust Thermal Design: Efficient heat dissipation supports continuous duty operation at rated load without derating up to 40°C ambient temperature.
• Standard Flange Mount: 176 × 176 mm standard flange for easy mechanical integration and compatibility with common mounting setups.
• Wide Compatibility: Works with standard servo amplifiers supporting position, speed, and torque control modes via pulse or analog command inputs.

HF-SP421B Materials & Applications

Materials

• Housing: High‑strength die‑cast aluminum alloy with corrosion‑resistant coating, ensuring rigidity and thermal conductivity.
• Rotor & Stator: High‑grade silicon steel laminations for low iron loss and high magnetic efficiency; high‑temperature resistant copper windings.
• Shaft: Precision‑ground hardened alloy steel, high wear resistance and concentricity; equipped with oil seal for IP67 sealing.
• Encoder: Industrial‑grade absolute optical encoder with sealed housing for dust/moisture resistance.
• Brake: Electromagnetic friction brake with heat‑resistant friction materials, reliable holding performance.
• Connectors & Wiring: IP67‑rated waterproof connectors; insulated, high‑temperature resistant cables for reliable electrical connection.

Typical Applications

• Industrial robots (articulated, gantry, palletizing)
• High‑precision X‑Y/Z positioning tables and machine tools
• Injection molding machines, die‑casting machines
• Material handling systems, conveyors, hoists, and elevators
• Packaging machinery, printing, and textile equipment
• Semiconductor manufacturing and assembly equipment
• Large automation machinery requiring high torque and stable motion control

HF-SP421B Important Parameters