The spreader is linked to the crane through the rope, and its motion state is changed complicated in three-dimension with the accelerating and decelerating of trolley, hoist and gantry.
随着起重机大车、小车及起升机构的加速和减速，由钢丝绳连接的吊重的运动状态表现为一个复杂的空间运动。
2
Mould the base body in the mould, and lay on the cutting trolley for demoulding after turning the cast mould over 90 degree by the upset hoist.