Fanuc Alpha A06B-6111 SPMi spindle drive. CNC West offers a large inventory of TYPE-I Fanuc Alpha i Spindle Amplifier Modules for service exchange and outright sale (exchange stock permitting). Also theĀ  capability and service too fault diagnose, repair, rebuild, refurbish and test within our closed loop Fanuc test rigs. Stocks range from 2.2kW through 55kW spindle amps powering a plethora of ai series spindle motors. These Fanuc alpha spindle amplifier modules are the second generation of Alpha spindle and CNC West offers 180 day warranty on exchange and repairs of the A06B-6111 series.