The ‘Contact’ or ‘Hermetic’ PSV sealing system provides a nearly impenetrable seal.

PSV rolls are particularly well suited to conveyors that operate in very difficult conditions, where working loads are high and large lump material is conveyed; despite these conditions, no maintenance is required.

The effectiveness of a PSV roller sealing system provides the solution to the environmental challenges of dust, dirt, water, low and high temperatures or large temperature imbalances between day and night.