Shama Spring offers a complete line ofdie springsin bothoil-temperedandchrome-alloymaterials. Die springs are used primarily in die machinery. However, they are also well-suited for many applications where high-static or shock-load stresses are required, or when maximum cycle-life is important. Rectangular wire is employed to reduce the solid height and increase the space efficiency of the design.
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Die Spring Characteristics
|Dimension||Diameter 20 mm|
|Wire Diameter||10 mm|
|Brand||Shama Spring Industries|
|Surface Treatment||Color Coated|
Shama Spring has designed and manufactures a complete line of industrial die springs. Generally used in die machinery, they are well-suited for many applications where high-static or shock-load stresses are required or when maximum cycle-life is important.
Measuring Die Springs
- Measure the Hole Diameter (also known as Outside Diameter)
- Measure the Rod Diameter (also known as Inside Diameter)
- Measure the Free Length (no load on the spring)
- Measure the Wire Size (both width and thickness dimensions)
- Use our search feature or catalog to find the correct color code and size for your needs.
For example, if a die spring measures .96″ on the hole dimension, it will fit into a 1″ hole. If it measures .56″ on the rod dimension, it will fit over a .50″ rod. Note: Die springs are manufactured to a “GO/NO-GO” dimension.
Hole and Rod Diameter
The die spring containment hole diameter sizes used in our online and print catalogs must be considered to eliminate possible spring-to-wall friction caused by heat, wear due to fabrication tolerances, and interference from the spring diameter growth due to compression. If the spring is long for its diameter, an internal supporting rod may be required to eliminate spring buckling.
Thermal effects are frequently ignored in spring failure or load-loss analysis. The maximum rated service temperature for chrome-alloy steel is about 440° F. The following table reflects the approximate load losses due to heat that can be expected with die springs.
Die springs of oil-tempered material are available as unfinished only. A colour coding system is employed for our chrome-alloy line for instant visual identification of the spring’s work range and to prevent errors in spring selection and installation. The colour coding is a light coating of water-based paint.
- Light Duty – Blue
- Medium Duty – Red
- Heavy Duty – Gold
- Extra-Heavy Duty – Green
- Light Load – Green
- Medium Load – Blue
- Heavy Load – Red
- Extra-Heavy Load – Yellow
- Available Length:25 mm to 305 mm
- Available Diameter: 20-60 mm
- Wire Diameter: 10-20 mm
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