Electrics vs. Hydraulics
Hydraulic sets are formed of lifting units (cylinders) connected by hoses on a pump powered by a hand crank or an electric drive. In case of manual drive it is easy to lift heavy loads (to 800 kg) without necessity connection to the power network.
System with electric units are appropriate especially where is less space for fastening the pump also is not required minimum of return force as by the hydraulic system.