Products: Composite Leaf Springs
Very thin layers of unidirectional Glass and Carbon reinforcement are laminated together to produce the best construction for highly fatigue resistance leaf springs. The layup of the fibres is optimised for the maximum performance for composite leaf springs unlike products which use woven reinforcement which can crack where the fibres are woven across each other. They are designed for very accurate tuning and outstanding life. They are used to replace steel leaf springs where the steel springs break due to repeated bending or are limited by the amount of continual bending that they can withstand.
Epoxy/Glass Springs
Large panels (2.4x1.2m) are made in thicknesses between 0.7 and 25mm and these are then cut and drilled to customers’ drawings. These have become the standard product for equipment where high performance leaf springs are required such as vibratory conveyors and feeders. Most have thicknesses between 1 & 8 mm with simple holes top and bottom for mounting. The largest market is in the food industry where they are used to move large quantities of free flowing materials such as peas, crisps, snack foods and cereals between machines and packing equipment. These types of machines are made without moving (just vibrating) parts so there is no need for belts, cogs, oil etc and are very easy to clean. Epoxy/glass springs are excellent electrical isolators.
Epoxy/Carbon Springs
Made in a similar way to Epoxy/Glass spring but using Carbon Fibre for the reinforcement. These have greater stiffness when compared to Epoxy/glass springs so they are used where even higher performance is needed. This greater stiffness means that thinner springs can be used for equivalent stiffness and on some equipment this is important. Carbon springs are also much lighter and will conduct electricity.
Spring Spacers
For leaf springs to work well they need to be very well “clamped” in position and it is often necessary to bank the springs together in “spring packs” in order to get the required performance. To stop the springs rubbing together they need to be separated by something very thin and rigid and spring spacers are used for this purpose. Any material that is thin and rigid can be used for this and the standard material is SRBF sheet. Spacers are made simply by punching out the necessary holes.
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