Restack and Rebar a Rotor

Wednesday, February 20, 2013

This is for a 4,000HP, 2-pole (3600rpm) rotor. Ron, with the assistance of Steve and John, is heating it up to 1,300 degrees (shown here) to melt the solder so they can slip on the new copper rings, which were manufactured by York.

First, they restacked a new lamination, and then they put in new copper bars before heating it up. Finally, they will let it cool down over night before balancing and machining it, and assemble before delivering it to a waiting customer.