Blue Lamina Die Springs | Medium Duty
Blue Lamina die springs are made by Dayton Lamina and color coded white with blue stripes to indicate that the springs have a medium pressure rating. The brand name is DieMax.
The efficient Operating Range is 25% to 40% of the free length (L). Maximum deflection = 40%. Average life = 35%. Long life = 25%. Travel to solid is for reference only and not intended for operation. Deflection beyond the efficient Operating Range could create a safety hazard or and result in premature spring failure.
The chart below provides the 40% deflection (F) and spring force in pounds for each medium duty DieMax blue die spring. Also shown is the travel to solid deflection (S) and the spring force constant (K) for each spring.
Use the following equation to calculate the spring force in pounds for a given spring and deflection; Force = K x 10 x F, where K is the force constant and F is the deflection in inches.
| 40% Deflection | Travel to Solid | Load @ .1″ | |||||
| Hole Dia. (D) | Rod Dia. (d) | Free Length (L) | Buy Online (SKU) | Spring Force (lbs) | Deflection (inches) (F) | Deflection (inches) (S) | Constant (lbs) (K) |
| 3/8 | 3/16 | 1.00 | M100L | 24.8 | 0.40 | 0.52 | 6.2 |
| 1.25 | M100AL | 26.5 | 0.50 | 0.69 | 5.3 | ||
| 1.50 | M101L | 24.9 | 0.60 | 0.82 | 4.2 | ||
| 1.75 | M101AL | 24.5 | 0.70 | 0.97 | 3.5 | ||
| 2.00 | M102L | 23.2 | 0.80 | 1.06 | 2.9 | ||
| 2.50 | M103L | 24.4 | 1.00 | 1.38 | 2.4 | ||
| 3.00 | M104L | 25.2 | 1.20 | 1.6 | 2.1 | ||
| 12.00 | M105L | 26.9 | 4.80 | 6.89 | 0.6 | ||
| 1/2 | 9/32 | 1.00 | M110L | 42.8 | 0.40 | 0.55 | 10.7 |
| 1.25 | M110AL | 41.0 | 0.50 | 0.7 | 8.2 | ||
| 1.50 | M111L | 40.8 | 0.60 | 0.84 | 6.8 | ||
| 1.75 | M111AL | 42.0 | 0.70 | 1.02 | 6.0 | ||
| 2.00 | M112L | 42.4 | 0.80 | 1.18 | 5.3 | ||
| 2.50 | M113L | 43.0 | 1.00 | 1.48 | 4.3 | ||
| 3.00 | M114L | 40.8 | 1.20 | 1.75 | 3.4 | ||
| 3.50 | M115L | 40.6 | 1.40 | 2.08 | 2.9 | ||
| 4.50 | M115AL | 43.2 | 1.80 | 2.68 | 2.4 | ||
| 5.50 | M115BL | 44.0 | 2.20 | 3.28 | 2.0 | ||
| 6.50 | M115CL | 36.4 | 2.60 | 3.85 | 1.4 | ||
| 7.50 | M115DL | 36.0 | 3.00 | 4.23 | 1.2 | ||
| 12.00 | M116L | 33.6 | 4.80 | 6.76 | 0.7 | ||
| 5/8 | 11/32 | 1.00 | M120L | 68.0 | 0.40 | 0.5 | 17.0 |
| 1.25 | M120AL | 65.0 | 0.50 | 0.63 | 13.0 | ||
| 1.50 | M121L | 66.6 | 0.60 | 0.81 | 11.1 | ||
| 1.75 | M121AL | 67.2 | 0.70 | 0.95 | 9.6 | ||
| 2.00 | M122L | 70.4 | 0.80 | 1.11 | 8.8 | ||
| 2.50 | M123L | 63.0 | 1.00 | 1.34 | 6.3 | ||
| 3.00 | M124L | 67.2 | 1.20 | 1.73 | 5.6 | ||
| 3.50 | M125L | 67.2 | 1.40 | 2.04 | 4.8 | ||
| 4.00 | M126L | 70.4 | 1.60 | 2.35 | 4.4 | ||
| 12.00 | M127L | 73.0 | 4.80 | 7.17 | 1.5 | ||
| 3/4 | 3/8 | 1.00 | M1L | 127.2 | 0.40 | 0.5 | 31.8 |
| 1.25 | M1AL | 128.0 | 0.50 | 0.6 | 25.6 | ||
| 1.50 | M2L | 120.0 | 0.60 | 0.73 | 20.0 | ||
| 1.75 | M2AL | 123.2 | 0.70 | 0.87 | 17.6 | ||
| 2.00 | M3L | 115.2 | 0.80 | 0.97 | 14.4 | ||
| 2.50 | M4L | 120.0 | 1.00 | 1.22 | 12.0 | ||
| 3.00 | M5L | 115.2 | 1.20 | 1.51 | 9.6 | ||
| 3.50 | M6L | 112.0 | 1.40 | 1.76 | 8.0 | ||
| 4.00 | M7L | 115.2 | 1.60 | 2.01 | 7.2 | ||
| 4.50 | M8L | 115.2 | 1.80 | 2.26 | 6.4 | ||
| 5.00 | M9L | 120.0 | 2.00 | 2.52 | 6.0 | ||
| 5.50 | M10L | 121.0 | 2.20 | 2.78 | 5.5 | ||
| 6.00 | M11L | 120.0 | 2.40 | 3.03 | 5.0 | ||
| 6.50 | M11BL | 117.0 | 2.60 | 3.3 | 4.5 | ||
| 7.50 | M11CL | 114.0 | 3.00 | 3.86 | 3.8 | ||
| 12.00 | M11AL | 115.2 | 4.80 | 6.16 | 2.4 | ||
| 1 | 1/2 | 1.00 | M12L | 220.0 | 0.40 | 0.49 | 55.0 |
| 1.25 | M12AL | 225.0 | 0.50 | 0.59 | 45.0 | ||
| 1.50 | M13L | 212.4 | 0.60 | 0.72 | 35.4 | ||
| 1.75 | M13AL | 210.0 | 0.70 | 0.85 | 30.0 | ||
| 2.00 | M14L | 208.0 | 0.80 | 0.98 | 26.0 | ||
| 2.50 | M15L | 202.0 | 1.00 | 1.23 | 20.2 | ||
| 3.00 | M16L | 198.0 | 1.20 | 1.5 | 16.5 | ||
| 3.50 | M17L | 210.0 | 1.40 | 1.75 | 15.0 | ||
| 4.00 | M18L | 192.0 | 1.60 | 2 | 12.0 | ||
| 4.50 | M19L | 189.0 | 1.80 | 2.25 | 10.5 | ||
| 5.00 | M20L | 192.0 | 2.00 | 2.51 | 9.6 | ||
| 5.50 | M21L | 193.6 | 2.20 | 2.76 | 8.8 | ||
| 6.00 | M22L | 192.0 | 2.40 | 3.04 | 8.0 | ||
| 7.00 | M23L | 201.6 | 2.80 | 3.52 | 7.2 | ||
| 8.00 | M24L | 192.0 | 3.20 | 4.14 | 6.0 | ||
| 12.00 | M24AL | 192.0 | 4.80 | 6.24 | 4.0 | ||
| 1-1/4 | 5/8 | 1.50 | M36L | 306.0 | 0.60 | 0.75 | 51.0 |
| 1.75 | M36AL | 296.8 | 0.70 | 0.87 | 42.4 | ||
| 2.00 | M37L | 288.0 | 0.80 | 0.95 | 36.0 | ||
| 2.50 | M38L | 288.0 | 1.00 | 1.25 | 28.8 | ||
| 3.00 | M39L | 288.0 | 1.20 | 1.54 | 24.0 | ||
| 3.50 | M40L | 280.0 | 1.40 | 1.8 | 20.0 | ||
| 4.00 | M41L | 281.6 | 1.60 | 2.05 | 17.6 | ||
| 4.50 | M42L | 288.0 | 1.80 | 2.3 | 16.0 | ||
| 5.00 | M43L | 272.0 | 2.00 | 2.56 | 13.6 | ||
| 5.50 | M44L | 281.6 | 2.20 | 2.78 | 12.8 | ||
| 6.00 | M45L | 288.0 | 2.40 | 3.02 | 12.0 | ||
| 7.00 | M46L | 291.2 | 2.80 | 3.5 | 10.4 | ||
| 8.00 | M47L | 281.6 | 3.20 | 4.02 | 8.8 | ||
| 10.00 | M48L | 288.0 | 4.00 | 5.02 | 7.2 | ||
| 12.00 | M48AL | 288.0 | 4.80 | 6.02 | 6.0 | ||
| 1-1/2 | 3/4 | 2.00 | M49L | 437.6 | 0.80 | 0.97 | 54.7 |
| 2.50 | M50L | 447.0 | 1.00 | 1.23 | 44.7 | ||
| 3.00 | M51L | 432.0 | 1.20 | 1.48 | 36.0 | ||
| 3.50 | M52L | 420.0 | 1.40 | 1.76 | 30.0 | ||
| 4.00 | M53L | 432.0 | 1.60 | 2.01 | 27.0 | ||
| 4.50 | M54L | 414.0 | 1.80 | 2.28 | 23.0 | ||
| 5.00 | M55L | 420.0 | 2.00 | 2.54 | 21.0 | ||
| 5.50 | M55AL | 407.0 | 2.20 | 2.78 | 18.5 | ||
| 6.00 | M56L | 408.0 | 2.40 | 3.04 | 17.0 | ||
| 7.00 | M56AL | 406.0 | 2.80 | 3.6 | 14.5 | ||
| 8.00 | M57L | 409.6 | 3.20 | 4.1 | 12.8 | ||
| 10.00 | M58L | 400.0 | 4.00 | 5.14 | 10.0 | ||
| 12.00 | M58AL | 393.6 | 4.80 | 6.14 | 8.2 | ||
| 2 | 1 | 2.50 | M70L | 1000.0 | 1.00 | 1.13 | 100.0 |
| 3.00 | M71L | 996.0 | 1.20 | 1.42 | 83.0 | ||
| 3.50 | M72L | 921.2 | 1.40 | 1.66 | 65.8 | ||
| 4.00 | M73L | 960.0 | 1.60 | 1.92 | 60.0 | ||
| 4.50 | M74L | 954.0 | 1.80 | 2.3 | 53.0 | ||
| 5.00 | M75L | 940.0 | 2.00 | 2.42 | 47.0 | ||
| 5.50 | M76L | 875.6 | 2.20 | 2.62 | 39.8 | ||
| 6.00 | M77L | 936.0 | 2.40 | 2.97 | 39.0 | ||
| 7.00 | M79L | 884.8 | 2.80 | 3.42 | 31.6 | ||
| 8.00 | M80L | 912.0 | 3.20 | 3.95 | 28.5 | ||
| 10.00 | M82L | 832.0 | 4.00 | 5 | 20.8 | ||
| 12.00 | M83L | 840.0 | 4.80 | 5.83 | 17.5 | ||