Blue Lamina Die Springs | Medium Duty

Photo of Lamina DieMax blue die springBlue 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.

drawing of spring deflection parameters

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