Die Springs, Heavy Duty Die Springs, Dealer, Trader, Supplier, India

We are Dealer, Wholesaler, Trader, Retailer, Supplier of Die Springs, Heavy Duty Die Springs from Pune, Maharashtra, India.

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

Specifications

Sr. No.	Description	Terminology	Units
1.	Hole Diameter	Dh	mm
2.	Rod Diameter	Dd	mm
3.	Outside Diameter	Do	mm
4.	Inside Diameter	Di	mm
5.	Free Length	Lo	mm
6.	Spring Rate (Load reuired for 1mm compression)	C	kg / mm

Spring Compression Table in % of Length (Lo)
Series	Colour	Comp.% Lo
Die Spring ( Equivalent to ISO 10423 )
SGL	Pista	40.0
SGR	Green	30.0
SBL	Blue	30.0
SRE	Red	25.0
SYE	Yellow	20.0
SUL	Silver	12.0
Die Spring ( Equivalent to JIS 5012 )
SSF	Yellow	45.0
SSL	Sky Blue	36.0
SSM	Red	28.8
SSH	Dark Green	21.6
SSH	Brown	18.0

Die Spring Equivalent to ISO - 10243

Die Spring with Round wire

Die Spring Equivalent to JIS 5012