螺旋升降机是由蜗轮蜗杆、箱体、轴承、丝杠等零部件组成。工作原理为：电机或者手动驱动蜗杆旋转，蜗杆驱动蜗轮减速旋转，蜗轮内腔加工为内螺纹，驱动丝杠上下移动，由于内部有蜗轮蜗杆，丝杠的减速作用，达到放大推力的作用。通过驱动蜗杆旋转，实现丝杠的上下移动，达到推拉或者顶升的作用。
自锁性能普通齿丝杠电动推杆和螺旋升降机，由于综合传动效率低，大部分有绝对动载自锁功能，增加设备运行的安全性；滚珠丝杠电动推杆和螺旋升降机不自锁；精度定位综合位置精度可达0,1mm; 伺服电动缸位置精度可至6um;精确控制配置编码器，通过变频器或控制器控制，实现闭环精确定位；如精度要求不高，可配备电位计实现在线控制。
同步性单减速电机通过机械联结同时驱动多台推杆，实现同步升降并绝对同步；驱动系统：直流电机12/24V, 单项交流电机，三相交流电机，无需气源/液压源；过载保护可配备安全离合器防过载；也可配备过载压力传感器防过载；负载高推/拉力可至300吨；其他维护简单，噪音低，可在高/低温，防腐/防爆恶劣环境正常工作。
The importance of safety is very important in all kinds of equipment. The screw jacks used in the lifting stage will have higher safety requirements. In order to ensure the safety of the performers, the design of the lifting platform will be larger, and the lift used will also be Larger, the elevator used in large theaters will now have a diameter of more than 3 meters, and the stability and safety have also been greatly improved.