**Air Hoist vs Electric Hoist: How Do They Work?**.
In order to understand how an air hoist works compared to an electric hoist, it is important to know the key differences between the two types of hoists and how they operate.
### Air Hoist Operation: Step-By-Step.
1. **Air Supply**: An air hoist operates using compressed air as its power source. The hoist is connected to an air compressor that supplies the necessary pressure.
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2. **Air Motor**: The air compressor sends compressed air to the air motor in the hoist. The air motor converts the energy from the compressed air into mechanical energy to power the hoist.
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3. **Lifting Mechanism**: The air motor drives a series of gears and a chain or wire rope mechanism to lift and lower the load. The operator controls the movement using a hand-held pendant or lever.
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4. **Safety Features**: Air hoists are designed with safety features such as overload protection and emergency stop buttons to ensure safe operation.
### Electric Hoist Operation: Step-By-Step.
1. **Power Source**: An electric hoist is powered by electricity from an electrical outlet or battery. It does not require an air compressor like the air hoist.
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2. **Electric Motor**: The electric hoist uses an electric motor to generate the power needed to lift and lower loads. The motor is connected to a gearbox that controls the speed and direction of the hoist.
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3. **Lifting Mechanism**: The electric motor drives a drum or a gear mechanism to lift and lower the load. The operator controls the movement using a push-button pendant or remote control.
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4. **Safety Features**: Electric hoists also have safety features such as thermal overload protection and limit switches to prevent overloading and ensure safe operation.
### Comparison.
- **Power Source**: Air hoists use compressed air, while electric hoists use electricity as their power source.
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- **Operation**: Air hoists require an air compressor and air motor to operate, while electric hoists use an electric motor.
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- **Control**: Air hoists are typically controlled using a hand-held pendant or lever, while electric hoists are controlled using push-button pendants or remote controls.
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- **Safety Features**: Both types of hoists have safety features, but the specific mechanisms may vary between air and electric hoists.
In conclusion, the choice between an air hoist and an electric hoist depends on the specific application and the availability of power sources. Each type of hoist has its own advantages and disadvantages, and understanding how they work is essential in selecting the right hoist for the job.
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