Hoists and Cranes
A hoist is used to move loads vertically by a drum (or wheel) on which wraps a rope, a wire rope or a chain. Hoist can be operated manually, electrically or pneumatically.
A crane is more complex than hoist and it moves heavy loads in different directions (in addition to vertical). There are different types of cranes including: overhead crane, truck-mounted crane, tower crane and etc.
An overhead crane has parallel runways with a traveling bridge. A hoist is the lifting component of the crane which travels along the bridge.
You can find great prices on different types of hoists and cranes in Hardwire Trading Company.
All Hoists and Cranes
Electric Chain Hoist
Electric Chain Hoist
A hoist is used to move loads vertically by a drum (or wheel) on which wraps a rope, a wire rope or a chain. Hoist can be operated manually, electrically or pneumatically.
An electric chain hoist uses a motor which converts electrical energy into mechanical energy to lift and lower heavy loads. It has a brake to ensure the load is carefully held while lifting. Using electric hoist increases the speed of the hoist and reduces power consumption and the time needed to complete the lifting application.
Electric chain hoists can be used on overhead or jib cranes.
Electric chain hoists are more popular than wire rope ones due to its ease of use and true vertical lifting (without side pulling).
Electric Wire Rope Hoist
Electric Wire Rope Hoist
A hoist is used to move loads vertically by a drum (or wheel) on which wraps a rope, a wire rope or a chain. Hoist can be operated manually, electrically or pneumatically.
An electric wire rope hoist is an electrically powered hoist designed for lifting heavy loads. Wire rope hoists use wire rope as a lifting element.
Manual Chain Hoist
Manual Chain Hoist
The manual chain hoist is the most economical way for lifting heavy loads. Manual chain hoists are used in construction, maintenance, and lifting applications.
Manual chain hoists are equipped with two chains:
Hand chain: a continuous chain which is looped around a wheel. The wheel allows pulling of the hand chain to drive the hoist.
Lifting chain: the lifting chain moves up and down when the hand chain is pulled.
Pneumatic Hoist
Pneumatic Hoist
Pneumatic hoist (also called air chain hoist) is very similar to electric chain hoist in features, except it has a compressed air feed instead of an electric power supply.
The main advantage of the pneumatic hoist is that it is 100% duty cycle which means it is suitable for constant use such as a production line. The pneumatic hoist is particularly suitable for long lifts where an electric hoist would overheat and for potentially explosive environments where sparks can cause explosion and an electric power source cannot be used.
Spark Resistant Hoist
Spark Resistant Hoist
The contact and friction between different parts of a hoist can cause sparks which can ignite flammable gas and dust.
There are several key factors which affects the potential ignition, including: the type of materials in contact, the pressure or speed of material contact, corrosion on contacting surfaces and lubrication.
Contact between steel materials can cause spark, so hoists made of steel parts are not suitable for potentially explosive environments.
The spark resistant hoists cost more than regular ones and they may decrease the lifting capacity.