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与锤不同,螺旋压力机工作部分80％以上的动能在向转飞轮上。工作力则由压机框架产生的弹性力所平衡,故传递给基础的仅仅是较小的冲击力,它的大小与直线运动部分的回程和停止时的速度有关。这里,作用于基础的主要动力是与快速变换飞轮回转方向相关的冲击力矩。除压机框架的惯性力矩之外,该冲击力全部传给了基础。停车时传给基础的是垂直冲击力:
Unlike hammers, the kinetic energy of more than 80% of the working part of a screw press is on the flywheel. The working force is balanced by the elastic force generated by the press frame. Therefore, the force transmitted to the foundation is only a small impact, and its size is related to the speed at the time of returning and stopping of the linear motion portion. Here, the main motive force acting on the foundation is the impact moment associated with rapidly changing the direction of rotation of the flywheel. In addition to the moment of inertia of the press frame, the impact is transmitted to the foundation. Parking is based on the vertical impact: