Marsh Mellow 'unbreakable' isolators

New hollow-core rubber and fabric Marsh Mellow springs developed by air spring producer Firestone cannot break or corrode like metal springs and are clean and silent in use.

Vibration occurs in all rotating or reciprocating machinery as a result of forces generated within it. Sometimes the vibration is intended, as in vibrating screens and vibrating conveyor sections, used by the food, beverage and the mineral processing and bulk handling industries.

A simple, robust, and effective means of solving vibration and isolation problems has now been provided by Marsh Mellow springs, which are fabric-reinforced solid rubber isolators used for quiet isolation of machinery vibration and for general shock absorption throughout industry.

The cylindrical springs, developed by Firestone, are constructed of a solid rubber core with a hollow centre and several plies of fabric-reinforced rubber as an outer cover. The plies provide the springs with stability as well as a consistent cylindrical shape.

Marsh Mellow springs are quiet in operation, unlike steel springs which readily transmit high frequency structural noise and often suffer from coil chatter. A failing coil spring may crack, causing fragments of the coil to damage equipment, resulting in expensive downtime. This problem is eliminated with Marsh Mellow springs, which are tolerant of overload.