Die Springs

In our assortment: American Die springs  (oval wire), ISO Die springs (rectangular wire) en Die springs made from round wire



American Die Springs


Die springs are developed to create high forces in small areas, as in Die sets. Because of the high frequenties and forces in the die sets, the demands of the springs are very high.


American duty springs are made of very high quality chromium vanadium steel (50CrV4/DIN17225/SAE 6150). Because of her oval wire profile a maximum of force and a maximum of lifecycle can be achieved.

American Die springs are marked by colour codes as follows:

 

Light duty 

Blue

Medium duty 

Red

Heavy duty

yellow/copper

Extra heavy duty

Green

 

To count the force at a certain loaded length, you have to multiply the compression lenght with the force rate of the spring.

 

Workingtemperature: max. 200 ° C.

 

In case of higher frequencies, than 1000 strokes per hour, the following values are allowed on the springstroke (Sn) as a percentage of the free length of the die springs:

 

  • blue springs:          25-30%   of free length

  • red springs:           20-25%   of free length

  • yellow springs:       15-20%   of free length

  • green springs:        15%        of free length

 

The tolerances at loaded length are as follows:

 

  •    0   -  60    mm    2,5 mm
  •   61  - 105   mm     3,5 mm
  • 106  - 200   mm     5,0 mm
  • 201  - 250   mm     6,5 mm
  • 251  - 305   mm     10  mm

 

ISO Duty springs

 

The ISO die springs are made according ISO 10243. They are made of Chromium Vanadium steel of a high tensile strenght. The ends are squared and grounded. Other coatings are on request deliverable. Please contact our department engineering. 

 

The workingtemperature is till 230 grades celcius. 

 

The color codes of ISO die springs are as follows:

  

Ultra Light duty       

Light green

Light duty

Green

Medium duty

Blue

Heavy duty

Red  

Extra heavy duty

Yellow

Ultra heavy duty

Silver

Hyper heavy duty

White

  

 

In the tabel you will find the values of the max. Spring stroke with the allowed force at a static charge. At a dynamic charge the below mentioned percentages has to be used to find the max. allowed. spring stroke.

 

                             

Dynamic 3 milj. cycli 

 Dynamic 1.5 milj.cycli   

       Static         

Light green           

             30% of Lo   

  40% of Lo                  

     45%  of Lo   

Green

             25% of Lo

   30% of Lo   

     35%  of Lo 

Blue

             25% of Lo

   30% of Lo

 33,75%  of Lo

Red  

             20% of Lo

   25% of Lo

 27,50%  of Lo

Yellow    

             17% of Lo

   20% of Lo

 22,50%  of Lo

Silver

             10% of Lo   

   12% of Lo

13,50%  of Lo  

White

              5% of Lo  

  6,5% of Lo

   7,50%  of Lo   

 

 

Die springs with round wire

 

These Die spings are made of round wire. They are deliverable in 3 versions, light, medium duty and heavy duty with diameters Φ10, Φ12.5 and Φ16 mm.

                            

Dynamic 3 milj. cycli 

 Dynamic1.5 milj.cycli 

                    Static     

Version               

Green

   25 % of Lo

   30% of Lo

    35%  of Lo

light duty

Blue

   25 % of Lo

   30% of Lo

      33,75% of Lo 

medium duty

Red

   20 % of Lo

   25% of Lo

 27,5% of Lo

heavy duty

 

 

Download herewith our catalogue:

Duty springs American(PDF) — downloaden

Duty springs according to ISO / roundwire (PDF) — downloaden

 

Click here to go to our seaching engine and webshop of standardsprings and normcomponents

 

 

 

If you need more information mail to sales@tevema.com  or call to (+31)-(0)20-6822961.

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* Please keep in mind our minimum order amount of Euro 30,-  for shipments abroad (European Union)!

For shipments outside the European Union our minimum order amount is Euro 50,- and Euro 25,- administration costs will be added for payments in advance!