How does a snatch block function in rigging?

A snatch block functions by acting as a pulley system that redirects the force applied to the rigging and effectively doubles the lifting capacity when used correctly. When a cable or rope passes through the snatch block, it changes the direction of the pull, which can greatly assist in maneuvering loads in a controlled manner. This type of block allows for better mechanical advantage, enabling the operator to lift heavier loads with less force, as the system can distribute the load more evenly and efficiently.

In practical applications, this capability is essential in rigging scenarios where space is limited, or access to the load is challenging. The design of a snatch block often includes a wheel and side plates that can be opened, allowing for easy installation of the cable or rope without having to remove it from the load. This flexibility enhances the overall functionality of the rigging setup, making snatch blocks integral for safely and effectively moving heavy objects in industrial environments. Other options do not accurately represent the true function and purpose of a snatch block in the rigging process.