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304-407-D

304-407-D

Raymond® ISO D-Line series Die Springs (direct replacement for other Die Springs on the market) are offered in six robust duty ranges: ultra-light, light, medium, heavy, extra heavy, and ultra-strong.
ISO D-Line Die Springs are ideal for sheet metal forming or other press tool applications that need a spring force applied or other applications that need to store and release energy. Die Springs can apply a higher force per inch of compression or deflection than traditional, round wire Compression Springs. Utilizing Raymond® Die Springs enables high lifecycles, longer durability, and longer time between maintenance teardowns.

Diagram / specifications section

FLFree Length (in)1.732
HHole Fit Diameter (in)0.75
PLoad at D1 (lbf)115.4
PLoad at D2 (lbf)138.5
PLoad at D3 (lbf)184.6
DMaximum Operating Deflection D3 (in)0.693
DMaxiumum Deflection for Long Life D2 (in)0.52
DMaxiumum Deflection for Optimal Life D1 (in)0.433
RRod Fit Diameter (in)0.394
RSpring Rate (lbs/in)266.4

Item specifications

  • ColorBlue
  • MaterialChromium Silicon Wire
  • Material Chemistry/DimensionalASTM A877
  • Material TypeAlloy Steel
  • Weight (lb)0.09266

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