The A06B‑0236‑B400 αiS8/4000HV AC servo motor belongs to Fanuc’s αiS 8/4000HV (400 V high‑voltage) servo series, designed for high‑speed, high‑torque CNC feed‑axis applications. It features 8 Nm stall torque and 4000 rpm maximum speed, providing strong acceleration and deceleration for demanding cuts while maintaining ultra‑smooth motion and positioning accuracy.
This Fanuc servo motor is a 3‑phase brushless AC synchronous servo with a straight shaft and 24 VDC holding brake, enabling safe, held‑position operation when power is off. It runs from ≈366 VAC, 3‑phase, 200 Hz, with about 5.8 A current and ≈2‑3 kW continuous output (roughly 2.3–3.8 kW depending on source‑quoted rating). The motor integrates an αi absolute encoder (aA1000i) for high‑resolution feedback that pairs seamlessly with Fanuc αi/αiS 400V amplifiers and CNC controllers, ensuring tight control over speed and position.
Physically, the A06B‑0236‑B400 is compact for its power class, weighing about 10 kg, and is built with IP65‑rated shaft seals and robust construction for industrial environments. It is commonly used on medium‑duty CNC machining centers, turning machines, and multi‑axis automation cells where high‑acceleration, high‑torque performance is required. With 12‑month warranty for new units and fast delivery from many suppliers, this αiS8/4000HV servo motor is an excellent choice for upgrades, rebuilds, and high‑performance motion‑control projects.
