FIRESTONE Marsh Mellow springs, available from Air Springs Supply Pty Ltd , are engineered for immense strength and longevity.
The springs feature a hollow centre 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 13-20HZ (800-1200 cycles a minute).
This outstanding performance - and a maximum load range now extending from 1.4kN up to 88kN (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, particularly in mills and mines where their corrosion-resistant durability means they will survive damp and corrosive environments where standard coil springs may fail.
Other advantages of Marsh Mellow springs 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% compression.
* Lower cost - Marsh Mellow springs' higher load capability means fewer springs may be needed in an application, resulting in less overall cost.
The spring's components (rubber, bias plies, size of centre) are combined in different ways to meet specific load and performance requirements.