When we use lifting equipment, the speed is not fixed, so we need to adjust the speed. So how many adjustments are they divided into? Which one is the most ideal? A brief introduction.

　　1. Electric hoist motor rotor resistance speed regulation, low price, extremely unstable.

　　2. Self excited power braking speed regulation is relatively reliable but inconvenient to operate.

　　3. Hydraulic push rod speed regulation. Modifications must be made to the crane machinery department before use.

　　4. The speed of Eddy current brake is very fast.

　　5. Variable frequency speed regulation, also known as variable frequency chain electric hoist. He is the most ideal speed control. Relatively reliable in all aspects. And it's more convenient to use. Easy to maintain.????