A die spring is a type of heavy duty compression spring manufactured using round wire specifically designed to be used in ‘Dies’ or as heavy duty coil springs in any heavy stress, heavy load applications such as clutches, brakes, farm machinery and aircraft mechanisms..
Lee Die springs are generally much cheaper than comparative rectangular wire springs, offering a distinct value advantage. In recent independant research by the Institute of Spring Technology* Lee Spring Die springs demonstrated a life expectancy equal to traditional rectangular wire.
* The UK Institute of Spring technology is the UK based centre of excellence for spring research offering a wide range of services to the spring industry covering all aspects of spring technology and testing.
- First determine how the die spring will be used. Is it required to withstand extra stress and rapid cycles, or will it be used for short runs?
- Use as many springs in the die as space permits with the least amount of deflection and operate within the ideal operating range.
- Ensure hole and rod sizes are properly matched with the spring, as faulty spring guidance can cause buckling and spring failure.
- Regular preventive die maintenance and replacement of die springs should be occur at appropriate intervals, helping to prevent operational downtime. All springs should be replaced at the same time to help provide an even load distribution.
- Die springs should not be reworked by grinding the inside or outside diameter, or by cutting off any of the coils as this could result in die damage and premature spring failure.
- Lee Spring offers five different types of HEFTY Die Springs, from medium load to extra heavy load springs.
Search the Lee Spring catalogue, using the guides and advice to find the right spring to suit your application. If you can’t see what you need, contact Lee Spring to find out about our custom spring design service.