The SC200/200 type variable frequency construction hoist produced by our company has the advantages of reasonable design, novel structure, stable operation, energy-saving and electricity-saving, complete and reliable safety devices, convenient installation and maintenance, etc. , the main features are as follows: 1, the transmission mechanism is driven by two motors, the bevel gear hard tooth surface reducer (quality guarantee for 5 years) , so that the force on the gear rack is even, safe and stable. 2, to ensure the safe operation of the lift, the circuit is set up overload, speed limit and other safety switches, when the operation of the above-mentioned situation, the lift immediately automatically avoid accidents. There are also limit switches on all doors of the suspension cage. When any door is opened abnormally, the suspension cage can not start or stop running immediately. 3, each suspension cage is equipped with anti-falling safety device, which can effectively prevent the suspension cage from falling and ensure the safe and reliable operation of the lift. 4, the Elevator Electric Control System Circuit is simple, easy to operate and maintain, and reliable. When the lift is in normal operation, the lift can be operated in the suspension cage by a handle or a button. The lift can be stopped at any time at any place that needs to be stopped. The automatic stop is controlled by a limit switch at the upper and lower terminals at the upper and lower terminal stations, if the upper and lower terminal limit switches do not work due to failure, the limit switch set on the elevator can cut off the power supply in time to make its braking. 5. Through scientific and rigorous calculation, the steel structure design meets the requirements of reasonable structure, reliable strength and light weight. 6. The lift can be installed or disassembled by itself using the suspender on the suspension cage. The rest of the parts can be easily installed and disassembled, and parts can be easily replaced.