Product Details

FANUC A06B-0086-B503#0100 is βiS B30/2000 AC servo motor with keyway shaft and built-in 24V holding brake, belonging to FANUC Beta iS servo series, compatible with βiS servo amplifiers and FANUC 0i-MF, 0i-MF Plus CNC systems. The #0100 suffix represents sealed B128iA absolute encoder version, which is configured for overseas machine tool after-sales replacement. It adopts 200V three-phase AC power supply, rated speed 2000rpm, delivering the strongest torque performance in this low-speed series for ultra-heavy roughing machining. The integrated power-off electromagnetic brake locks the shaft instantly upon power loss, effectively preventing vertical Z-axis falling on super heavy mold machining centers and large gantry milling machines. The sealed encoder assembly offers excellent resistance against coolant mist and fine dust, maintaining stable signal feedback in harsh workshop environments. The keyway shaft is designed for timing belt and pulley transmission, sustaining steady torque transfer and preventing slippage under extreme heavy cutting load.

This servo motor integrates stator winding, high inertia rotor assembly, sealed B128iA absolute encoder and spring static holding brake inside red-capped aluminum housing. The B128iA absolute encoder transmits high-precision angle feedback to servo amplifier, supporting closed-loop position, speed and torque control. The built-in brake is power-release type, only for static shaft holding instead of dynamic braking during high-speed movement. It comes with keyway shaft matched with synchronous pulley and gear set for belt-driven mechanical layout. Two separate connectors are arranged at the rear for power cable and encoder cable, following FANUC standard pin definition for convenient wiring and maintenance.

The front shaft sealing structure reaches IP65 protection grade, resisting coolant splashes, cutting oil mist and fine metal dust in CNC workshops. The internal bearing set uses long-life grease lubrication to support continuous low-speed heavy cutting cycles. Its high inertia rotor delivers outstanding anti-interference performance during massive material removal, ensuring consistent and smooth feed movement for large mold roughing and finishing. Users can adjust servo gain, soft limit and brake delay parameters on CNC system to match vertical axis gravity balance and ultra-heavy low-speed belt transmission characteristics.

It serves as a direct replacement spare part for original #0100 coded keyway shaft βiS B30/2000 servo motors suffering from bearing abnormal noise, encoder signal loss, brake slip, shaft wear and winding burnout. Every unit will pass winding insulation test, encoder position reading test, brake holding force verification and servo amplifier matching test before shipment, ensuring stable torque output and reliable static locking performance. Replacing this servo motor can restore ultra-heavy-load low-speed feed axis motion rapidly, avoid machine shutdown caused by cutting interruption and vertical axis sliding. It is widely deployed in export heavy gantry machining centers, super large mold processing equipment and other belt-driven CNC feed axis applications.