Die Springs For 3D Printers And Die Machinery Pack Of 20 Red Spiral Compression Springs 12mm Outer Diameter 20mm Free Length Closed End Medium Load Made Of 65Mn Steel Ideal For Stamping Moulds And Electric Parts

12mm OD Compression Die Springs, 20mm Free Length, 65Mn Steel
✔️ 12mm OD, 6mm ID, 20mm free length; 32% max compression; red finish

These red, rectangular-section compression die springs are built from 65Mn steel and come in a pack of 20. They’re designed for stamping dies, die machinery, plastic injection tooling, and 3D printer components where reliable preload and controlled compression are critical.

✅ 65Mn steel, red-painted surface resists rust
✅ Outer diameter 12mm (0.47"), inner diameter 6mm (0.24"), free length 20mm (0.79")
✅ Max compression rate 32%, medium load

💡 What is a compression die spring used for in stamping dies and metal forming?

In tooling, these springs provide reliable preload and controlled compression to keep components aligned and moving predictably.

• Handy for stamping dies and die machinery to maintain preload
• Provides consistent actuation in plastic injection tooling and 3D printer components
• 65Mn steel with red-coated finish resists rust and extends life