Product Showcase
More Marsh Mellows® mean fewer coil spring breakages with less noise and downtime.
Product/Service Name
Firestone Marsh Mellow springs.
Function/ApplicationsExpanded ranges of compact and highly efficient isolators that eliminate
damage and production interruptions caused by coil spring breakages are
being introduced by Air Spring Supply.
Firestone Marsh Mellow® springs are engineered for immense strength and longevity with a hollow centres surrounded by a solid rubber core and
fabric ply reinforced body to deliver constant vibration isolation with changing loads.
Their unique construction delivers low natural spring frequencies to provide excellent isolation of forced frequencies in the range of 13-20-HZ
(800-1200 cycles a minute)
This outstanding performance – and a maximum load range now extending from 1.4 kN up to 88 kN (on special order) – makes them particularly suitable for vibration isolation applications beneath such equipment as bin
hoppers, compressors, crushers, blowers, motors, HVAC installations and
vibrating screens.
Marsh Mellows also make ideal shock absorbers for conveyor, steel product, timber product and other materials handling applications, articularly in mills and mines where their corrosion-resistant durability means they will survive damp and corrosive environments where standard coil springs may fail.
Marsh Mellows have no moving parts and require no maintenance or
lubrication, so they are ideal for applications in grimy and demanding
environments such as mining and resources, bulk materials handling,
manufacturing, metals and primary product processing.
And because they reduce structurally transmitted noise caused by
vibration, Marsh Mellows have considerable OHS and comfort benefits by
being quiet in operation – unlike coil springs, which often suffer coil chatter and readily transmit high frequency structural noise.
Their terrifically rugged rubber construction eliminates the problem with
coil springs of cracking to allow fragments of metal to damage equipment.
Additionally, Marsh Mellow springs exhibit exceptionally high overload
characteristics and offer some support even during failure.
Differentiating FeaturesOther advantages of Marsh Mellows include:
• High load carrying capacity because of their superior deflection capabilities and the load carrying influences of the fabric reinforcement.
This means they can carry a greater load than an all-rubber part of the
same modulus and dimensions at a superior natural frequency.
• Increased stability at higher percentages of compression. As height
compresses, the fabric-reinforced rubber plies pantograph and the diameter grows. This supports the rubber core laterally even in an emergency at 30-40 per cent compression.
• Lower cost. Marsh Mellow springs’ higher load capability means fewer
springs may be needed in an application, resulting in less overall cost.