The Mini-Pamper hull-cleaning machine is fitted with two counter-rotating brushes that create a suction force of several hundred kilograms on to the hull.
If these brushes were allowed to operate without control they would abrade and damage the underlying surface. The onboard control mechanism incorporated into the brush mountings of Mini-Pamper counters this suction force and transfers the load on to the chassis. There is ample force to create a stable platform that can be driven and steered