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  • Select the spring carefully at the design stage.  • For longer stroke - select light load or medium load spring.   • For more load - select heavy load or extra heavy load....
  • Select the spring carefully at the design stage.   • For longer stroke - select light load or medium load spring.   • For more load - select heavy load or extra heavy load springs.   • Calculate spring stroke (required compression.)   • Pre-loading compression should be equal to 5 % of the length.   • Use guide pin, a locating bore as a guide - this is essential for spring having a free length / diameter ratio exceeding      3.5   • If possible use longer springs for lower loadings.   • Never compress springs beyond the average life load and compression.   • Always check spring holder heights and working strokes of moving elements after die tools has been reground.   • Protects springs from corrosive agents.   • Do not exceed a working temperature of 2500 C, No significant load reduction occurs up to 1200 C, beyond this    temperature an average loss of 1 % for every 400 C must be calculate.   • Do not replace one spring at a time, if they are multiple in use.   • Do not alter physical characteristics of springs like cutting of coils, grinding of internal or external diameter.
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