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Extra Heavy Duty – ISO Metric Series

Extra-Heavy-Duty-metric-spring(Solid Yellow)
Loads are shown in Newtons.

Efficient Operating Range is 15% to 20% deflection of free length. Maximum deflection is 20%; Long Life deflection is 17%; Optimum Life deflection is 15%. Deflection beyond this Efficient Operating Range could result in premature spring failure. Travel to Solid is a reference dimension only and should never be approached during use.

20% Deflection 17% Deflection 15% Deflection
Part# Free
Length (mm)
Load (lbs Deflection Length Load (lbs) Deflection Length Load (lbs) Deflection Length Deflection Length
Travel To Solid
Load @
.1″ Deflection (lbs)
Hole Dia. (mm)
Rod Dia. (mm)
ED10-25 25 184 5.0 158.2 4.3 139.8 3.8 6.2 36.8 10 5
ED10-32 32 178.6 6.4 150.7 5.4 133.9 4.8 8.0 27.9 10 5
ED10-38 38 180.1 7.6 154.1 6.5 135.1 5.7 9.5 23.7 10 5
ED10-44 44 169 8.8 144 7.5 126.7 6.6 11.0 19.2 10 5
ED10-51 51 168.3 10.2 143.6 8.7 127.1 7.7 13.0 16.5 10 5
ED10-64 64 169 12.8 143.9 10.9 126.7 9.6 16.0 13.2 10 5
ED10-76 76 165.7 15.2 140.6 12.9 124.3 11.4 19.0 10.9 10 5
ED10-305 305 170.8 61.0 145.3 51.9 128.2 45.8 76.0 2.8 10 5
ED12-25 25 292.5 5.0 251.6 4.3 222.3 3.8 6.2 58.5 12.5 6.3
ED12-32 32 281 6.4 237.1 5.4 210.7 4.8 8.0 43.9 12.5 6.3
ED12-38 38 273.6 7.6 234 6.5 205.2 5.7 9.5 36 12.5 6.3
ED12-44 44 266.6 8.8 227.3 7.5 200 6.6 11.0 30.3 12.5 6.3
ED12-51 51 267.2 10.2 227.9 8.7 201.7 7.7 13.0 26.2 12.5 6.3
ED12-64 64 271.4 12.8 231.1 10.9 203.5 9.6 16.0 21.2 12.5 6.3
ED12-76 76 259.9 15.2 220.6 12.9 194.9 11.4 19.0 17.1 12.5 6.3
ED12-89 89 258.1 17.8 219 15.1 194.3 13.4 22.0 14.5 12.5 6.3
ED12-305 305 262.3 61.0 223.2 51.9 196.9 45.8 76.0 4.3 12.5 6.3
ED16-25 25 590 5.0 507.4 4.3 448.4 3.8 6.2 118 16 8
ED16-32 32 569.6 6.4 480.6 5.4 427.2 4.8 8.0 89 16 8
ED16-38 38 548 7.6 468.7 6.5 411 5.7 9.5 72.1 16 8
ED16-44 44 535.9 8.8 456.8 7.5 401.9 6.6 11.0 60.9 16 8
ED16-51 51 533.5 10.2 455 8.7 402.7 7.7 13.0 52.3 16 8
ED16-64 64 527.4 12.8 449.1 10.9 395.5 9.6 16.0 41.2 16 8
ED16-76 76 518.3 15.2 439.9 12.9 388.7 11.4 19.0 34.1 16 8
ED16-89 89 525.1 17.8 445.5 15.1 395.3 13.4 22.0 29.5 16 8
ED16-102 102 522.2 20.4 442.9 17.3 391.7 15.3 26.0 25.6 16 8
ED16-305 305 512.4 61.0 436 51.9 384.7 45.8 76.0 8.4 16 8
ED20-25 25 1465 5.0 1259.9 4.3 1113.4 3.8 6.2 293 20 10
ED20-32 32 1433.6 6.4 1209.6 5.4 1075.2 4.8 8.0 224 20 10
ED20-38 38 1345.2 7.6 1150.5 6.5 1008.9 5.7 9.5 177 20 10
ED20-44 44 1311.2 8.8 1117.5 7.5 983.4 6.6 11.0 149 20 10
ED20-51 51 1305.6 10.2 1113.6 8.7 985.6 7.7 13.0 128 20 10
ED20-64 64 1267.2 12.8 1079.1 10.9 950.4 9.6 16.0 99 20 10
ED20-76 76 1241.8 15.2 1053.9 12.9 931.4 11.4 19.0 81.7 20 10
ED20-89 89 1237.1 17.8 1049.5 15.1 931.3 13.4 22.0 69.5 20 10
ED20-102 102 1236.2 20.4 1048.4 17.3 927.2 15.3 26.0 60.6 20 10
ED20-115 115 1219 23.0 1038.8 19.6 916.9 17.3 29.0 53 20 10
ED20-127 127 1206.5 25.4 1026 21.6 907.3 19.1 32.0 47.5 20 10
ED20-139 139 1195.4 27.8 1014.8 23.6 898.7 20.9 35.0 43 20 10
ED20-152 152 1185.6 30.4 1006.2 25.8 889.2 22.8 38.0 39 20 10
ED20-305 305 1293.2 61.0 1100.3 51.9 971 45.8 76.0 21.2 20 10
ED25-32 32 2396.2 6.4 2021.8 5.4 1797.1 4.8 8.0 374.4 25 12.5
ED25-38 38 2196.4 7.6 1878.5 6.5 1647.3 5.7 9.5 289 25 12.5
ED25-44 44 2147.2 8.8 1830 7.5 1610.4 6.6 11.0 244 25 12.5
ED25-51 51 2116.5 10.2 1805.3 8.7 1597.8 7.7 13.0 207.5 25 12.5
ED25-64 64 2060.8 12.8 1754.9 10.9 1545.6 9.6 16.0 161 25 12.5
ED25-76 76 1988.2 15.2 1687.3 12.9 1491.1 11.4 19.0 130.8 25 12.5
ED25-89 89 1966.9 17.8 1668.6 15.1 1480.7 13.4 22.0 110.5 25 12.5
ED25-102 102 1964.5 20.4 1666 17.3 1473.4 15.3 26.0 96.3 25 12.5
ED25-115 115 1971.1 23.0 1679.7 19.6 1482.6 17.3 29.0 85.7 25 12.5
ED25-127 127 1938 25.4 1648.1 21.6 1457.3 19.1 32.0 76.3 25 12.5
ED25-152 152 1930.4 30.4 1638.3 25.8 1447.8 22.8 38.0 63.5 25 12.5
ED25-178 178 1918.8 35.6 1633.2 30.3 1439.1 26.7 44.0 53.9 25 12.5
ED25-203 203 1908.2 40.6 1621.5 34.5 1433.5 30.5 51.0 47 25 12.5
ED25-305 305 1884.9 61.0 1603.7 51.9 1415.2 45.8 76.0 30.9 25 12.5
ED32-38 38 4014.3 7.6 3433.3 6.5 3010.7 5.7 9.5 528.2 32 16
ED32-44 44 3734.7 8.8 3183 7.5 2801 6.6 11.0 424.4 32 16
ED32-51 51 3600.6 10.2 3071.1 8.7 2718.1 7.7 13.0 353 32 16
ED32-64 64 3445.8 12.8 2934.3 10.9 2584.3 9.6 16.0 269.2 32 16
ED32-76 76 3321.2 15.2 2818.7 12.9 2490.9 11.4 19.0 218.5 32 16
ED32-89 89 3209.3 17.8 2722.5 15.1 2416 13.4 22.0 180.3 32 16
ED32-102 102 3162 20.4 2681.5 17.3 2371.5 15.3 26.0 155 32 16
ED32-115 115 3220 23.0 2744 19.6 2422 17.3 29.0 140 32 16
ED32-127 127 3149.6 25.4 2678.4 21.6 2368.4 19.1 32.0 124 32 16
ED32-152 152 3100.8 30.4 2631.6 25.8 2325.6 22.8 38.0 102 32 16
ED32-178 178 3139.9 35.6 2672.5 30.3 2354.9 26.7 44.0 88.2 32 16
ED32-203 203 3507.8 40.6 2980.8 34.5 2635.2 30.5 51.0 86.4 32 16
ED32-254 254 3088.6 50.8 2626.6 43.2 2316.5 38.1 64.0 60.8 32 16
ED32-305 305 2989 61.0 2543.1 51.9 2244.2 45.8 76.0 49 32 16
ED40-51 51 6405.6 10.2 5463.6 8.7 4835.6 7.7 13.0 628 40 20
ED40-64 64 6233.6 12.8 5308.3 10.9 4675.2 9.6 16.0 487 40 20
ED40-76 76 5760.8 15.2 4889.1 12.9 4320.6 11.4 19.0 379 40 20
ED40-89 89 5713.8 17.8 4847.1 15.1 4301.4 13.4 22.0 321 40 20
ED40-102 102 5732.4 20.4 4861.3 17.3 4299.3 15.3 26.0 281 40 20
ED40-115 115 5635 23.0 4802 19.6 4238.5 17.3 29.0 245 40 20
ED40-127 127 5613.4 25.4 4773.6 21.6 4221.1 19.1 32.0 221 40 20
ED40-152 152 5107.2 30.4 4334.4 25.8 3830.4 22.8 38.0 168 40 20
ED40-203 203 5359.2 40.6 4554 34.5 4026 30.5 51.0 132 40 20
ED40-254 254 5435.6 50.8 4622.4 43.2 4076.7 38.1 64.0 107 40 20
ED40-305 305 5355.8 61.0 4556.8 51.9 4021.2 45.8 76.0 87.8 40 20
ED50-64 64 9075.2 12.8 7728.1 10.9 6806.4 9.6 16.0 709 50 25
ED50-76 76 8694.4 15.2 7378.8 12.9 6520.8 11.4 19.0 572 50 25
ED50-89 89 8455 17.8 7172.5 15.1 6365 13.4 22.0 475 50 25
ED50-102 102 8262 20.4 7006.5 17.3 6196.5 15.3 26.0 405 50 25
ED50-115 115 8096 23.0 6899.2 19.6 6089.6 17.3 29.0 352 50 25
ED50-127 127 8026.4 25.4 6825.6 21.6 6035.6 19.1 32.0 316 50 25
ED50-152 152 7265.6 30.4 6166.2 25.8 5449.2 22.8 38.0 239 50 25
ED50-203 203 7592.2 40.6 6451.5 34.5 5703.5 30.5 51.0 187 50 25
ED50-254 254 7772.4 50.8 6609.6 43.2 5829.3 38.1 64.0 153 50 25
ED50-305 305 7747 61.0 6591.3 51.9 5816.6 45.8 76.0 127 50 25

Die Springs Menu

  • Standard Inch Series
    • Medium Duty – Standard Inch Series
    • Medium Heavy Duty – Standard Inch Series
    • Heavy Duty – Standard Inch Series
    • Extra Heavy Duty – Standard Inch Series
  • ISO Inch Series
    • Light Duty – ISO Inch Series
    • Medium Duty ISO Inch Series
    • Heavy Duty – ISO Inch Series
    • Extra Heavy Duty – ISO Inch Series
  • ISO Metric Series
    • Light Duty – ISO Metric Series
    • Medium Duty – ISO Metric Series
    • Heavy Duty – ISO Metric Series
    • Extra Heavy Duty – ISO Metric Series

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Established in 1914, Peterson Spring is the largest privately held spring manufacturer in North America. Through designing, manufacturing and supplying springs, snap-rings, wire forms, clips, clamps, stampings, and a variety of sub-assemblies, Peterson Spring has expanded to 12 worldwide locations.
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