Trippers are used to discharge bulk material from the belt conveyor. Trippers can be stationary or movable.
- Stationary trippers are used when the discharge needs to occur in the same place.
- Movable trippers are most appropriately used to load large stockpiles or bunkers to spread the material over a larger area than can be accommodated by a stationary tripper.
- Movable trippers have a frame mounted on flanged wheels, which engage rails parallel to the belt conveyor.