(Solid Blue)
Loads are shown in Newtons.
Efficient Operating Range is 20% to 30% deflection of free length. Maximum deflection is 30%; Long Life deflection is 25%; Optimum Life deflection is 20%. 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.
| 30% Deflection | 25% Deflection | 20% 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) |
| MD10-25 | 25 | 120 | 7.5 | 100.8 | 6.3 | 80 | 5.0 | 9.5 | 16 | 10 | 5 |
| MD10-32 | 32 | 124.8 | 9.6 | 104 | 8.0 | 83.2 | 6.4 | 12.2 | 13 | 10 | 5 |
| MD10-38 | 38 | 135.7 | 11.4 | 113.1 | 9.5 | 90.4 | 7.6 | 14.4 | 11.9 | 10 | 5 |
| MD10-44 | 44 | 136 | 13.2 | 113.3 | 11.0 | 90.6 | 8.8 | 16.7 | 10.3 | 10 | 5 |
| MD10-51 | 51 | 136.2 | 15.3 | 113.9 | 12.8 | 90.8 | 10.2 | 19.4 | 8.9 | 10 | 5 |
| MD10-64 | 64 | 144 | 19.2 | 120 | 16.0 | 96 | 12.8 | 24.3 | 7.5 | 10 | 5 |
| MD10-76 | 76 | 120.8 | 22.8 | 100.7 | 19.0 | 80.6 | 15.2 | 28.9 | 5.3 | 10 | 5 |
| MD10-305 | 305 | 164.7 | 91.5 | 137.3 | 76.3 | 109.8 | 61.0 | 116.0 | 1.8 | 10 | 5 |
| MD12-25 | 25 | 225 | 7.5 | 189 | 6.3 | 150 | 5.0 | 9.5 | 30 | 12.5 | 6.3 |
| MD12-32 | 32 | 238.1 | 9.6 | 198.4 | 8.0 | 158.7 | 6.4 | 12.2 | 24.8 | 12.5 | 6.3 |
| MD12-38 | 38 | 244 | 11.4 | 203.3 | 9.5 | 162.6 | 7.6 | 14.4 | 21.4 | 12.5 | 6.3 |
| MD12-44 | 44 | 244.2 | 13.2 | 203.5 | 11.0 | 162.8 | 8.8 | 16.7 | 18.5 | 12.5 | 6.3 |
| MD12-51 | 51 | 237.2 | 15.3 | 198.4 | 12.8 | 158.1 | 10.2 | 19.4 | 15.5 | 12.5 | 6.3 |
| MD12-64 | 64 | 232.3 | 19.2 | 193.6 | 16.0 | 154.9 | 12.8 | 24.3 | 12.1 | 12.5 | 6.3 |
| MD12-78 | 78 | 232.6 | 22.8 | 193.8 | 19.0 | 155 | 15.2 | 28.9 | 10.2 | 12.5 | 6.3 |
| MD12-89 | 89 | 224.3 | 26.7 | 187.3 | 22.3 | 149.5 | 17.8 | 33.8 | 8.4 | 12.5 | 6.3 |
| MD12-305 | 305 | 192.2 | 91.5 | 160.2 | 76.3 | 128.1 | 61.0 | 116.0 | 2.1 | 12.5 | 6.3 |
| MD16-25 | 25 | 370.5 | 7.5 | 311.2 | 6.3 | 247 | 5.0 | 9.5 | 49.4 | 16 | 8 |
| MD16-32 | 32 | 356.2 | 9.6 | 296.8 | 8.0 | 237.4 | 6.4 | 12.2 | 37.1 | 16 | 8 |
| MD16-38 | 38 | 386.5 | 11.4 | 322.1 | 9.5 | 257.6 | 7.6 | 14.4 | 33.9 | 16 | 8 |
| MD16-44 | 44 | 396 | 13.2 | 330 | 11.0 | 264 | 8.8 | 16.7 | 30 | 16 | 8 |
| MD16-51 | 51 | 403.9 | 15.3 | 337.9 | 12.8 | 269.3 | 10.2 | 19.4 | 26.4 | 16 | 8 |
| MD16-64 | 64 | 393.6 | 19.2 | 328 | 16.0 | 262.4 | 12.8 | 24.3 | 20.5 | 16 | 8 |
| MD16-76 | 76 | 405.8 | 22.8 | 338.2 | 19.0 | 270.6 | 15.2 | 28.9 | 17.8 | 16 | 8 |
| MD16-89 | 89 | 405.8 | 26.7 | 339 | 22.3 | 270.6 | 17.8 | 33.8 | 15.2 | 16 | 8 |
| MD16-102 | 102 | 413.1 | 30.6 | 344.3 | 25.5 | 275.4 | 20.4 | 38.8 | 13.5 | 16 | 8 |
| MD16-305 | 305 | 439.2 | 91.5 | 366.2 | 76.3 | 292.8 | 61.0 | 116.0 | 4.8 | 16 | 8 |
| MD20-25 | 25 | 735 | 7.5 | 617.4 | 6.3 | 490 | 5.0 | 9.4 | 98 | 20 | 10 |
| MD20-32 | 32 | 697 | 9.6 | 580.8 | 8.0 | 464.6 | 6.4 | 12.0 | 72.6 | 20 | 10 |
| MD20-38 | 38 | 638.4 | 11.4 | 532 | 9.5 | 425.6 | 7.6 | 14.0 | 56 | 20 | 10 |
| MD20-44 | 44 | 627 | 13.2 | 522.5 | 11.0 | 418 | 8.8 | 16.5 | 47.5 | 20 | 10 |
| MD20-51 | 51 | 638 | 15.3 | 533.8 | 12.8 | 425.3 | 10.2 | 19.0 | 41.7 | 20 | 10 |
| MD20-64 | 64 | 620.2 | 19.2 | 516.8 | 16.0 | 413.4 | 12.8 | 24.0 | 32.3 | 20 | 10 |
| MD20-76 | 76 | 572.3 | 22.8 | 476.9 | 19.0 | 381.5 | 15.2 | 28.0 | 25.1 | 20 | 10 |
| MD20-89 | 89 | 587.4 | 26.7 | 490.6 | 22.3 | 391.6 | 17.8 | 33.0 | 22 | 20 | 10 |
| MD20-102 | 102 | 605.9 | 30.6 | 504.9 | 25.5 | 403.9 | 20.4 | 38.0 | 19.8 | 20 | 10 |
| MD20-115 | 115 | 624.5 | 34.5 | 521.3 | 28.8 | 416.3 | 23.0 | 43.0 | 18.1 | 20 | 10 |
| MD20-127 | 127 | 632.5 | 38.1 | 527.9 | 31.8 | 421.6 | 25.4 | 48.0 | 16.6 | 20 | 10 |
| MD20-139 | 139 | 629.7 | 41.7 | 525.5 | 34.8 | 419.8 | 27.8 | 52.0 | 15.1 | 20 | 10 |
| MD20-152 | 152 | 601.9 | 45.6 | 501.6 | 38.0 | 401.3 | 30.4 | 57.0 | 13.2 | 20 | 10 |
| MD20-305 | 305 | 741.2 | 91.5 | 618 | 76.3 | 494.1 | 61.0 | 114.0 | 8.1 | 20 | 10 |
| MD25-25 | 25 | 1102.5 | 7.5 | 926.1 | 6.3 | 735 | 5.0 | 9.4 | 147 | 25 | 12.5 |
| MD25-32 | 32 | 1132.8 | 9.6 | 944 | 8.0 | 755.2 | 6.4 | 12.0 | 118 | 25 | 12.5 |
| MD25-38 | 38 | 1060.2 | 11.4 | 883.5 | 9.5 | 706.8 | 7.6 | 14.0 | 93 | 25 | 12.5 |
| MD25-44 | 44 | 1066.6 | 13.2 | 888.8 | 11.0 | 711 | 8.8 | 16.5 | 80.8 | 25 | 12.5 |
| MD25-51 | 51 | 1049.6 | 15.3 | 878.1 | 12.8 | 699.7 | 10.2 | 19.0 | 68.6 | 25 | 12.5 |
| MD25-64 | 64 | 1017.6 | 19.2 | 848 | 16.0 | 678.4 | 12.8 | 24.0 | 53 | 25 | 12.5 |
| MD25-76 | 76 | 985 | 22.8 | 820.8 | 19.0 | 656.6 | 15.2 | 28.0 | 43.2 | 25 | 12.5 |
| MD25-89 | 89 | 1019.9 | 26.7 | 851.9 | 22.3 | 680 | 17.8 | 33.0 | 38.2 | 25 | 12.5 |
| MD25-102 | 102 | 1009.8 | 30.6 | 841.5 | 25.5 | 673.2 | 20.4 | 38.0 | 33 | 25 | 12.5 |
| MD25-115 | 115 | 966 | 34.5 | 806.4 | 28.8 | 644 | 23.0 | 43.0 | 28 | 25 | 12.5 |
| MD25-127 | 127 | 986.8 | 38.1 | 823.6 | 31.8 | 657.9 | 25.4 | 48.0 | 25.9 | 25 | 12.5 |
| MD25-139 | 139 | 967.4 | 41.7 | 807.4 | 34.8 | 645 | 27.8 | 52.0 | 23.2 | 25 | 12.5 |
| MD25-152 | 152 | 948.5 | 45.6 | 790.4 | 38.0 | 632.3 | 30.4 | 57.0 | 20.8 | 25 | 12.5 |
| MD25-178 | 178 | 950.5 | 53.4 | 792.1 | 44.5 | 633.7 | 35.6 | 67.0 | 17.8 | 25 | 12.5 |
| MD25-203 | 203 | 962.2 | 60.9 | 802.6 | 50.8 | 641.5 | 40.6 | 76.0 | 15.8 | 25 | 12.5 |
| MD25-305 | 305 | 933.3 | 91.5 | 778.3 | 76.3 | 622.2 | 61.0 | 114.0 | 10.2 | 25 | 12.5 |
| MD32-38 | 38 | 2109 | 11.4 | 1757.5 | 9.5 | 1406 | 7.6 | 14.0 | 185 | 32 | 16 |
| MD32-44 | 44 | 2085.6 | 13.2 | 1738 | 11.0 | 1390.4 | 8.8 | 16.5 | 158 | 32 | 16 |
| MD32-51 | 51 | 2050.2 | 15.3 | 1715.2 | 12.8 | 1366.8 | 10.2 | 19.0 | 134 | 32 | 16 |
| MD32-64 | 64 | 1900.8 | 19.2 | 1584 | 16.0 | 1267.2 | 12.8 | 24.0 | 99 | 32 | 16 |
| MD32-76 | 76 | 1835.4 | 22.8 | 1529.5 | 19.0 | 1223.6 | 15.2 | 28.0 | 80.5 | 32 | 16 |
| MD32-89 | 89 | 1845 | 26.7 | 1540.9 | 22.3 | 1230 | 17.8 | 33.0 | 69.1 | 32 | 16 |
| MD32-102 | 102 | 1799.3 | 30.6 | 1499.4 | 25.5 | 1199.5 | 20.4 | 38.0 | 58.8 | 32 | 16 |
| MD32-115 | 115 | 1776.8 | 34.5 | 1483.2 | 28.8 | 1184.5 | 23.0 | 43.0 | 51.5 | 32 | 16 |
| MD32-127 | 127 | 1706.9 | 38.1 | 1424.6 | 31.8 | 1137.9 | 25.4 | 48.0 | 44.8 | 32 | 16 |
| MD32-139 | 139 | 1763.9 | 41.7 | 1472 | 34.8 | 1175.9 | 27.8 | 52.0 | 42.3 | 32 | 16 |
| MD32-152 | 152 | 1723.7 | 45.6 | 1436.4 | 38.0 | 1149.1 | 30.4 | 57.0 | 37.8 | 32 | 16 |
| MD32-178 | 178 | 1735.5 | 53.4 | 1446.3 | 44.5 | 1157 | 35.6 | 67.0 | 32.5 | 32 | 16 |
| MD32-203 | 203 | 1820.9 | 60.9 | 1518.9 | 50.8 | 1213.9 | 40.6 | 76.0 | 29.9 | 32 | 16 |
| MD32-254 | 254 | 1630.7 | 76.2 | 1358.9 | 63.5 | 1087.1 | 50.8 | 95.0 | 21.4 | 32 | 16 |
| MD32-305 | 305 | 1674.5 | 91.5 | 1396.3 | 76.3 | 1116.3 | 61.0 | 114.0 | 18.3 | 32 | 16 |
| MD40-51 | 51 | 2778.5 | 15.3 | 2324.5 | 12.8 | 1852.3 | 10.2 | 19.0 | 181.6 | 40 | 20 |
| MD40-64 | 64 | 2688 | 19.2 | 2240 | 16.0 | 1792 | 12.8 | 24.0 | 140 | 40 | 20 |
| MD40-76 | 76 | 2462.4 | 22.8 | 2052 | 19.0 | 1641.6 | 15.2 | 28.0 | 108 | 40 | 20 |
| MD40-89 | 89 | 2421.7 | 26.7 | 2022.6 | 22.3 | 1614.5 | 17.8 | 33.0 | 90.7 | 40 | 20 |
| MD40-102 | 102 | 2478.6 | 30.6 | 2065.5 | 25.5 | 1652.4 | 20.4 | 38.0 | 81 | 40 | 20 |
| MD40-115 | 115 | 2477.1 | 34.5 | 2067.8 | 28.8 | 1651.4 | 23.0 | 43.0 | 71.8 | 40 | 20 |
| MD40-127 | 127 | 2388.9 | 38.1 | 1993.9 | 31.8 | 1592.6 | 25.4 | 48.0 | 62.7 | 40 | 20 |
| MD40-139 | 139 | 2397.8 | 41.7 | 2001 | 34.8 | 1598.5 | 27.8 | 52.0 | 57.5 | 40 | 20 |
| MD40-152 | 152 | 2353 | 45.6 | 1960.8 | 38.0 | 1568.6 | 30.4 | 57.0 | 51.6 | 40 | 20 |
| MD40-178 | 178 | 2354.9 | 53.4 | 1962.5 | 44.5 | 1570 | 35.6 | 67.0 | 44.1 | 40 | 20 |
| MD40-203 | 203 | 2235 | 60.9 | 1864.4 | 50.8 | 1490 | 40.6 | 76.0 | 36.7 | 40 | 20 |
| MD40-254 | 254 | 2293.6 | 76.2 | 1911.4 | 63.5 | 1529.1 | 50.8 | 95.0 | 30.1 | 40 | 20 |
| MD40-305 | 305 | 2250.9 | 91.5 | 1877 | 76.3 | 1500.6 | 61.0 | 114.0 | 24.6 | 40 | 20 |
| MD50-64 | 64 | 4012.8 | 19.2 | 3344 | 16.0 | 2675.2 | 12.8 | 24.0 | 209 | 50 | 25 |
| MD50-76 | 76 | 3830.4 | 22.8 | 3192 | 19.0 | 2553.6 | 15.2 | 28.0 | 168 | 50 | 25 |
| MD50-89 | 89 | 3738 | 26.7 | 3122 | 22.3 | 2492 | 17.8 | 33.0 | 140 | 50 | 25 |
| MD50-102 | 102 | 3641.4 | 30.6 | 3034.5 | 25.5 | 2427.6 | 20.4 | 38.0 | 119 | 50 | 25 |
| MD50-115 | 115 | 3657 | 34.5 | 3052.8 | 28.8 | 2438 | 23.0 | 43.0 | 106 | 50 | 25 |
| MD50-127 | 127 | 3695.7 | 38.1 | 3084.6 | 31.8 | 2463.8 | 25.4 | 48.0 | 97 | 50 | 25 |
| MD50-139 | 139 | 3627.9 | 41.7 | 3027.6 | 34.8 | 2418.6 | 27.8 | 52.0 | 87 | 50 | 25 |
| MD50-152 | 152 | 3648 | 45.6 | 3040 | 38.0 | 2432 | 30.4 | 57.0 | 80 | 50 | 25 |
| MD50-178 | 178 | 3711.3 | 53.4 | 3092.8 | 44.5 | 2474.2 | 35.6 | 67.0 | 69.5 | 50 | 25 |
| MD50-203 | 203 | 3641.8 | 60.9 | 3037.8 | 50.8 | 2427.9 | 40.6 | 76.0 | 59.8 | 50 | 25 |
| MD50-229 | 229 | 3496.8 | 68.7 | 2916.6 | 57.3 | 2331.2 | 45.8 | 86.0 | 50.9 | 50 | 25 |
| MD50-254 | 254 | 3345.2 | 76.2 | 2787.7 | 63.5 | 2230.1 | 50.8 | 95.0 | 43.9 | 50 | 25 |
| MD50-305 | 305 | 3531.9 | 91.5 | 2945.2 | 76.3 | 2354.6 | 61.0 | 114.0 | 38.6 | 50 | 25 |
| MD63-76 | 76 | 7113.6 | 22.8 | 5928 | 19.0 | 4742.4 | 15.2 | 28.0 | 312 | 63 | 38 |
| MD63-89 | 89 | 6942 | 26.7 | 5798 | 22.3 | 4628 | 17.8 | 33.0 | 260 | 63 | 38 |
| MD63-102 | 102 | 6762.6 | 30.6 | 5635.5 | 25.5 | 4508.4 | 20.4 | 38.0 | 221 | 63 | 38 |
| MD63-115 | 115 | 6451.5 | 34.5 | 5385.6 | 28.8 | 4301 | 23.0 | 43.0 | 187 | 63 | 38 |
| MD63-127 | 127 | 6400.8 | 38.1 | 5342.4 | 31.8 | 4267.2 | 25.4 | 48.0 | 168 | 63 | 38 |
| MD63-152 | 152 | 6201.6 | 45.6 | 5168 | 38.0 | 4134.4 | 30.4 | 57.0 | 136 | 63 | 38 |
| MD63-178 | 178 | 6087.6 | 53.4 | 5073 | 44.5 | 4058.4 | 35.6 | 67.0 | 114 | 63 | 38 |
| MD63-203 | 203 | 6090 | 60.9 | 5080 | 50.8 | 4060 | 40.6 | 76.0 | 100 | 63 | 38 |
| MD63-229 | 229 | 6128 | 68.7 | 5111.2 | 57.3 | 4085.4 | 45.8 | 86.0 | 89.2 | 63 | 38 |
| MD63-254 | 254 | 5974.1 | 76.2 | 4978.4 | 63.5 | 3982.7 | 50.8 | 95.0 | 78.4 | 63 | 38 |
| MD63-305 | 305 | 5920.1 | 91.5 | 4936.6 | 76.3 | 3946.7 | 61.0 | 114.0 | 64.7 | 63 | 38 |
