Variable Frequency Construction Hoist

The variable frequency construction hoist is designed to meet the increasing needs for high-rise construction. Its maximum lifting speed reaches 96m/min.

Features
1.This construction hoist is equipped with the most advanced variable frequency speed control device and microcomputer PLC (Programmable Logic Controller).

2. The continuously variable speed controller enables the industrial hoist to start and brake without impact and to run more smoothly. This remarkably reduces the impact on the mechanical components and avoids the abrasion of gears, racks and brake, prolonging the service life of those components.

3. Thanks to the open loop V/F control, the speed control accuracy is limited within ±2% to 3%. Consequently, the variable frequency construction hoist can stop slowly and accurately, and the sliding caused by large load while going down is successfully averted as well.

4. The variable frequency speed control system supports current limiting. As the current for starting the motor is small, the impact on the power grid is weakened. The motor can easily get started without being affected by the voltage drop caused by cables in long distance power supply. This system also moderates the effect on other electric equipment so that energy consumption is reduced.

5. The variable frequency system of our personnel hoist comes with multiple safety protection functions, including overvoltage protection, undervoltage protection, overload protection, overcurrent protection, etc.

7. The software programming technology of PLC simplifies the manipulation process, averts the risk of incorrect operation, and improves operational safety.

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