This machine uses four independent steel ropes to do traction and tractiondrive. Comparing with traditional hoist, the possibility of rope broken isless, and this machine guarantees no overshooting. The safety devices forpreventing falling, stopping and control position of up and down were wellinstalled. The machine cage can be stopped on each floor, which controlled bydigital circuit. The control buttons are placed under diaphragm type servomotorpanels, which is waterproof and dustproof. TV monitor and intercom areinstalled, so the operators can know well the working status of machine cage intime. This machine is an ideal lift equipment, which has below advantages: easyoperation, low noise, good lift speed and electricity saving.