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Die Springs

   
 
Die Spring In Is & Jis Stnd
Hss Die Punces
Ball Cages
Anti Vibration Machine Mounts
 
   
 
Guide Line - Spring selection and operating condition :-
   
 

  • 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.

   
   
 
Spring Compression Table
   
 
Series
Load
Colour
Long Life
Medium Life
Average Life
Equivalent Standard
 

Die Spring (Equivalent to ISO 10243)

SLG
Lightest Load
Pista
30%
40%
50%
ISO 10243
SGR
Light Load
Green
25%
30%
40%
ISO 10243
SBL
Medium Load
Blue
25%
30%
37.5%
ISO 10243
SRE
Heavy Load
Red
20%
25%
30%
ISO 10243
SYE
Extra Heavy Load
Yellow
17%
20%
25%
ISO 10243
SUL
Ulra Load
Silver
10%
12%
15%
ISO 10243
 
Die Spring (Equivalent to JIS B 5012)
 
SSF
Lightest Load
Yellow
40%
45%
50%
JSB B 5012
SSl
Light Load
Sky Blue
32%
36%
40%
JSB B 5012
SSM
Medium Load
RED
25.6%
28.8%
32%
JSB B 5012
SSH
Heavy Load
Dark Green
19.2%
21.6%
24%
JSB B 5012
SSB
Extra Heavy Load
Brown
16%
18%
20%
JSB B 5012
SSR
High Compression
Ivory
45%
50%
60%
JSB B 5012
STD
High Compression
Violet
45%
50%
60%
JSB B 5012
 
   
 

Spring Geometry

   
 
spring_geometry_image
   
   
 
specification
   
   
 
Die Spring Equivalent to ISO - 10243
   
 
die_spring_equivalent_to_iso-10243
   
   
 
Die Spring Equivalent to ISO - 10243
   
 
sbl_series
   
 
sre_series
   
 
sye_serie
   
 
sul_series
   
   
 
Die Spring with Round wire
   
 
r_series
   
   
 
Die Spring Equivalent to JIS 5012
   
 
ssf_series
   
 
ssl_series
   
 
ssm_series
   
 
ssh_serie
   
 
ssb_series