Fanuc S servo digital exchange, used surplus fully tested, and NEW are available on the A06B-6058-H221 Fanuc AC dual axis servo amplifier drive unit. The drive is normally fitted with either Fanuc Model 2 or 1-0SP motors on both axis. The servo amp is a small yellow cased sized drive unit. If required full testing of the A06B-6058-H221 for fault diagnosis on both or either axis if uncertainty exists is possible or full repair / rebuild services are available. CNC offer all work in house and do not outsource any repairs to S series H221 digitial servos or testing outside of CNC.