Single Phase Electric Chain Hoists

Single phase electric chain hoists, with compact and tough shape, made of high aluminum alloy shell or iron shell, which is light but hard. Our single phase electric chain hoists adopt three-phase induction or single phase induction motors. Single phase electric chain hoists are simpler compare to three phase electric chain hoists. They are developed with new techniques and renewal and upgrading. All single phase electric chain hoists products in experienced strict quality management and are controlled from purchasing to delivery. For the sake of safety and reliability, single phase electric chain hoists are equipped with sensitive steady electro-magnetic braking device-inverse service and sequence protecting device-limit switch with lowest repair rate.
The principle of phase change is to use 1 phase, also called "split-phase" capacitor motor or use VFD then change 3 phase to 1 phase, the advantage of using VFD is more reliable and safety, but the disadvantage is the price is much higher than with capacitor motor. While considering the high efficiency and reliability of single phase, it is recommended for customers to use VFD to achieve the exchange of 3 phase and single phase. Also, it can automatically keep the output voltage stable when input voltage fluctuating. The primary difference between single phase and three phases lie on voltage that received through each type of wire.