Spring Type Spring Type |
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![]() | Die |
System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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End Type End Type |
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![]() | Closed and Ground |
Load Rating Load Rating |
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Compressed Length @ Maximum Load Compressed Length@ Maximum Load |
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Wire Thickness Wire Thickness |
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Rate Rate |
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Material Material |
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Wire Width Wire Width |
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Specifications Met Specifications Met |
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The colors and sizes of these springs follow ISO 10243 for metric die springs. Made of chrome-silicon steel, they have high tensile strength for reliable, long-lasting operation in repetitive applications, such as punching and stamping. All have closed and ground ends, which provide a flat mounting surface for even movement and distribution of loads.
Deflection is the distance the spring compresses, expressed as a percentage of its length.
As you squeeze a die spring, it gets harder to push. Rate is the amount of force required for every millimeter of compression. The higher the rate, the harder it is to compress the spring.
For technical drawings and 3-D models, click on a part number.
Wire | ||||||||||
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Lg., mm | Thick., mm | Wd., mm | Compressed Lg. @ Max. Load, mm | Deflection @ Max. Load | Max. Load, lbs. | Rate, lbs./mm | Material | End Type | Each | |
Green (Light Load Rating) | ||||||||||
For 10 mm Hole Dia. (For 5 mm Shaft Dia.) | ||||||||||
25 | 0.99 | 1.78 | 14.7 | 35% | 19 | 2.2 | Chrome-Silicon Steel | Closed and Ground | 0000000 | 00000 |
For 12.5 mm Hole Dia. (For 6 mm Shaft Dia.) | ||||||||||
25 | 1.32 | 2.36 | 14.7 | 35% | 35 | 4 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 16 mm Hole Dia. (For 8 mm Shaft Dia.) | ||||||||||
25 | 1.75 | 2.77 | 14.7 | 35% | 46 | 5.2 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 20 mm Hole Dia. (For 10 mm Shaft Dia.) | ||||||||||
25 | 1.91 | 4.19 | 14.8 | 35% | 109 | 12.5 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 25 mm Hole Dia. (For 12.5 mm Shaft Dia.) | ||||||||||
25 | 2.54 | 5.46 | 14.8 | 35% | 196 | 22 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
Blue (Medium Load Rating) | ||||||||||
For 10 mm Hole Dia. (For 5 mm Shaft Dia.) | ||||||||||
25 | 1.17 | 1.85 | 15.5 | 30% | 26 | 3.5 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 12.5 mm Hole Dia. (For 6 mm Shaft Dia.) | ||||||||||
25 | 1.55 | 2.39 | 15.5 | 30% | 50 | 6.7 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 16 mm Hole Dia. (For 8 mm Shaft Dia.) | ||||||||||
25 | 2.06 | 3.12 | 15.5 | 30% | 83 | 11.1 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 20 mm Hole Dia. (For 10 mm Shaft Dia.) | ||||||||||
25 | 2.36 | 3.96 | 15.6 | 30% | 165 | 22 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 25 mm Hole Dia. (For 12.5 mm Shaft Dia.) | ||||||||||
25 | 2.92 | 5.54 | 15.6 | 30% | 247 | 33 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
Red (Heavy Load Rating) | ||||||||||
For 10 mm Hole Dia. (For 5 mm Shaft Dia.) | ||||||||||
25 | 1.37 | 1.83 | 17.5 | 25% | 31 | 4.9 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 12.5 mm Hole Dia. (For 6 mm Shaft Dia.) | ||||||||||
25 | 1.83 | 2.41 | 17.5 | 25% | 59 | 9.4 | Chrome-Silicon Steel | Closed and Ground | 0000000 | 0000 |
For 16 mm Hole Dia. (For 8 mm Shaft Dia.) | ||||||||||
25 | 2.36 | 3.18 | 17.5 | 25% | 106 | 17 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 20 mm Hole Dia. (For 10 mm Shaft Dia.) | ||||||||||
25 | 3.18 | 4.19 | 17.5 | 25% | 303 | 48 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 25 mm Hole Dia. (For 12.5 mm Shaft Dia.) | ||||||||||
25 | 4.01 | 5.61 | 17.5 | 25% | 526 | 84 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
Yellow (Extra Heavy Load Rating) | ||||||||||
For 10 mm Hole Dia. (For 5 mm Shaft Dia.) | ||||||||||
25 | 1.50 | 2.03 | 18.8 | 20% | 41 | 8.2 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 12.5 mm Hole Dia. (For 6 mm Shaft Dia.) | ||||||||||
25 | 2.13 | 2.46 | 18.8 | 20% | 65 | 13.1 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 16 mm Hole Dia. (For 8 mm Shaft Dia.) | ||||||||||
25 | 2.79 | 3.20 | 18.8 | 20% | 132 | 26 | Chrome-Silicon Steel | Closed and Ground | 00000000 | 0000 |
For 20 mm Hole Dia. (For 10 mm Shaft Dia.) | ||||||||||
25 | 4.09 | 4.06 | 18.8 | 20% | 329 | 65 | Chrome-Silicon Steel | Closed and Ground | 0000000 | 0000 |