Vulcan’s success with the 80C lead its customers to ask the same question they asked about the 08: could a larger hammer be fit in the frame. In the case of the 08, there was already the 0R and 010, and the 012, 508, 510 and 512 were to come. As was the case with the 65C, Vulcan simply put a false head on the top to increase the weight needed to keep the hammer in place due to the increased pressure. The result was the 85C and the 100C. General arrangements are below.
Specifications are below.