Electric Hoists

An electric hoist is a suspended lifting mechanism used in construction, the automotive industry and other fields. Its compact size and reliability allow it to be used for quickly lifting loads. Electric models lift greater mass than manual ones, where physical effort is required to lift the load.

Design

An electric hoist is structurally similar to a manual one, except for the drive. The design includes an electric motor, a drum for rotating the chain or wire rope element, a gearbox and a hook for securing the load. The hoist can be connected to 220 V or 380 V networks, depending on the power of the electric motor.

Types of electric hoists

Two types of electric hoists are produced in series:

1. Stationary. Fixed to a beam and move loads in a vertical plane. Used in automotive workshops, garages and construction. Load capacity — from 2 t to 20 t and more.
2. Mobile chain or wire rope mechanisms. The unit housing is fixed to a trolley — a mobile mechanism — allowing the load to be raised and lowered and then moved to the required location. Suitable for spaces over 200 square meters, where it is not possible to move a bulky load by hand. Models with a trolley are popular.

Operating advantages

1. The performance of electric hoists is higher than that of manual ones: instead of physical effort, an electric drive is used, which increases the speed of lifting the load.
2. Economical energy consumption: reduces the time needed to lift the load and the number of personnel operating the unit.
3. Safety: the operator works remotely and controls the hoist with a remote control.

Operating rules

1. Hoists must not be used to transport personnel.
2. Overloading the mechanism is prohibited — this leads to a hazardous situation.
3. Electric hoists are not used for transporting explosive and flammable substances.

How to choose

Selection criteria — the mechanism’s load capacity, the power of the drive unit, the length of the rope and the speed at which the flexible rigging element winds onto the drum. The material of the housing and rope is selected based on operational requirements.