Milling system : cracker, muller, milling machine, conveyor, hoist , material house, fluidized bed furnace, helix mixing blade, ripe power house, static dust catcher and shaking motor.

This paper simplifies the gear change calculation and machine adjustment in machining equiangular helix conical milling cutter with non-circular gear method.

Considering the features of multi-edges and helix flutes for end milling, a cutting force discrete model base on single point cutting tools model was built.