When a chain hoist is overloaded, multiple critical components may be damaged, which not only affects the normal operation of the crane, but also poses safety hazards to operators and the surrounding environment. Here are some of the main components that may be damaged due to overloading:

Chain:

The chain is the main component that bears the load in a chain hoist. Overloading can cause the chain to bear excessive tension, thereby accelerating the wear, fracture, or plastic deformation of the chain. Once the chain breaks, the load may suddenly lose control, causing serious consequences.

Gears and gearboxes:

Gears and gearboxes are important components in chain hoists that transmit power and change the direction of motion. Overloading can increase the meshing pressure of gears, leading to increased gear wear, and may even result in serious faults such as tooth breakage and tooth breakage. Meanwhile, the gearbox may also be damaged due to excessive load.

Braking system:

The braking system is a key component that ensures the safe stopping and positioning of chain hoists. Overloading can increase the load on the braking system, leading to overheating, increased wear, or failure of the brakes. Once the braking system fails, the crane will be unable to accurately stop or locate, leading to accidents.

Motor and transmission system:

The motor is the power source of the chain hoist, and the transmission system is responsible for transmitting the power of the motor to the load. Overloading can cause the motor to operate excessively, resulting in overheating, burning, and other malfunctions. Meanwhile, components such as bearings and couplings in the transmission system may also be damaged due to excessive load.

Structural and supporting components:

The structural components and supporting parts of a chain hoist, such as the boom, legs, base, etc., may also be damaged under overload conditions. These components need to withstand various forces and moments from the load, and overloading can cause the stress of these components to exceed the design limit, leading to deformation, cracking, or fracture and other failures.

Electrical control system:

The electrical control system is the nerve center of the chain crane, responsible for controlling various functions and parameters of the crane. Although the electrical control system itself does not directly bear the load, overloading can cause electrical components (such as contactors, relays, etc.) to withstand excessive current or voltage shocks, leading to faults or damage.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment