8 Wheels Sheaves Lifting Platform Pulley Block

8 Wheels Sheaves Lifting Platform Pulley Block

The mechanical advantage of a pulley block system increases with the number of supporting strands, with each additional strand doubling the mechanical advantage. For a pulley block system with two pulleys (a double pulley system), the mechanical advantage is 4, allowing the system to lift a load four times heavier than the input force applied.

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