1. Construction and Components:
- The primary components include a load chain, lifting hook, lifting wheel or drum, and a housing containing the gearing mechanism.
- Available in both manual (hand-operated) and powered (electric or pneumatic) configurations.
2. Load Capacity:
- Chain hoists are available in a range of load capacities, from a few hundred kilograms to several tons, making them versatile for various lifting tasks.
3. Types of Chain Hoists:
- Manual Chain Hoist:
- Operated by pulling the hand chain to lift the load.
- Suitable for lighter loads and applications where power is not readily available.
- Electric Chain Hoist:
- Powered by an electric motor, allowing for easier and more efficient lifting.
- Ideal for heavier loads and frequent lifting tasks.
- Pneumatic Chain Hoist:
- Powered by compressed air, suitable for environments where electricity is not preferred or hazardous.
4. Lifting Mechanism:
- The load chain is wound around the lifting wheel or drum, which is connected to the hoist’s internal gears.
- When the chain is pulled or the hoist is powered, the load is lifted as the chain wraps around the drum.
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