Such hoists change the power frequency through transducer and the lifting speed and the traveling speed to make the electric hoist travel more smoothly and more accurately.

• 变频功能型电动葫芦利用变频器使电源频率发生变化，实现电动葫芦起升机构和运行机构的变速，使电动葫芦运行更平稳、定位更准确。