Description Overview 30 pound hammers Suitable for plastic, heavy paper tubes, wood, coal, or any friable material such as minerals, computers, or hard drives Specifications 150 hp motor (needs a sheave for the main shaft and a starter for the 150 hp, probably a size 5) Weight: 12,000–13,000 pounds Feed opening: approximately 34 in x 42 in Bottom screen: 1 in Hopper height when installed: 9 in Condition Needs a main sheave and pulley for C belts on the main shaft for whatever speed is needed from 600–1000 rpm Needs a motor starter, size 5