Die springs are widely used in the stamping die, metal die-casting mold, plastic mold and other elastic motion precision machinery and equipment, automotive and other fields. Rectangular die spring has the advantages of small volume, good elasticity, high rigidity, high precision, material is rectangular, surface color coating (plating) to distinguish different loading, the characteristics of beautiful appearance and so.
Description of spring parameters
1. The outer diameter and color are unchanged, only the length is changed, the ultimate pressure value of the spring is fixed, and the force per millimeter of the spring changes with the length.
2. Spring force per millimeter, also called spring constant K= maximum force/(spring length x compression ratio)
unit N/mm(kgf/mm)
For example
SWF25*100,K=490/(100X0.5)=9.8N/mm
SWF25*125,K=490/(125X0.5)=7.84N/mm
Any length can be calculated by this.
3.Please note that the spring can't be pressed to the limit for a long time, and it is not recommended to splice it up and down, otherwise the service life will be shortened sharply and it will not rebound in place.
4.Yellow, blue and red green tea, the line thickness increases in turn, the strength increases in turn, and the compression decreases in turn.
5.Unit conversion: 1Kg=9.8N, empty distance is the gap between spring coils, line width = (outside diameter-inside diameter) /2, line thickness is the thickness of each coil of spring wire when the spring is vertically placed, and maximum stroke = length x ultimate compression ratio.
We have standard-sized springs with diameters of φ6~φ60 in stock, which can usually be delivered within 3 working days. If you need to customize non-standard parts, the delivery time is generally 15-20 days. For the customization of non-standard parts, please give us your drawings, clearly indicating the requirements of size, tolerance, material and quantity, and then we will quote you a preferential price.
Springs are wrapped in soft materials and packed in cartons. As for shipping, all well-known express delivery companies and ocean shipping companies can choose, but only EMS can be used in remote areas. Terms of shipment, such as EXW, FOB and CIF, are available.