Heavy Duty (Red) ISO Die Springs - Size, Deflection, and Load Chart

  For Optimum Life For Long Life Max. Operating Def. Max.
Deflection*
Hole
(A)
Rod
(B)
Free
Length
(C)
Part
Number
Load @
1 mM Def.
(N)
Load
(N)
Deflection
(15% of
Length)
Load
(N)
Deflection
(20% of
Length)
Load
(N)
Deflection
(25% of
Length)
10 5 25
32
38
44
51
64
76
305
ISO310025
ISO310032
ISO310038
ISO310044
ISO310051
ISO310064
ISO310076
ISO310305
22.1
17.5
17.1
15.0
12.8
10.7
7.5
2.1
82.9
84.0
97.5
99.0
97.9
102.7
85.5
96.1
3.8
4.8
5.7
6.6
7.7
9.6
11.4
45.8
110.5
112.0
130.0
132.0
130.6
137.0
114.0
128.1
5.0
6.4
7.6
8.8
10.2
12.8
15.2
61.0
138.1
140.0
162.5
165.0
163.2
171.2
142.5
160.1
6.3
8.0
9.5
11.0
12.8
16.0
19.0
76.3
7.5
9.6
11.4
13.2
15.3
19.2
22.8
91.5
12.5 6.3 25
32
38
44
51
64
76
89
305
ISO312025
ISO312032
ISO312038
ISO312044
ISO312051
ISO312064
ISO312076
ISO312089
ISO312305
42.1
33.2
29.3
24.6
19.6
15.0
13.2
11.4
2.8
157.9
159.4
167.0
162.4
149.9
144.0
150.5
152.2
128.1
3.8
4.8
5.7
6.6
7.7
9.6
11.4
13.4
45.8
210.5
212.5
222.7
216.5
199.9
192.0
200.6
202.9
170.8
5.0
6.4
7.6
8.8
10.2
12.8
15.2
17.8
61.0
263.1
265.6
278.4
270.6
249.9
240.0
250.8
253.7
213.5
6.3
8.0
9.5
11.0
12.8
16.0
19.0
22.3
76.3
7.5
9.6
11.4
13.2
15.3
19.2
22.8
26.7
91.5
16 8 25
32
38
44
51
64
76
89
102
305
ISO316025
ISO316032
ISO316038
ISO316044
ISO316051
ISO316064
ISO316076
ISO316089
ISO316102
ISO316305
75.7
52.8
48.5
42.8
37.1
30.3
25.7
21.7
19.3
7.1
283.9
253.4
276.5
282.5
283.8
290.9
293.0
289.7
295.3
324.8
3.8
4.8
5.7
6.6
7.7
9.6
11.4
13.4
15.3
45.8
378.5
337.9
368.6
376.6
378.4
387.8
390.6
386.3
393.7
433.1
5.0
6.4
7.6
8.8
10.2
12.8
15.2
17.8
20.4
61.0
473.1
422.4
460.8
470.8
473.0
484.8
488.3
482.8
492.2
541.4
6.3
8.0
9.5
11.0
12.8
16.0
19.0
22.3
25.5
76.3
7.5
9.6
11.4
13.2
15.3
19.2
22.8
26.7
30.6
91.5
20 10 25
32
38
44
51
64
76
89
102
115
127
139
152
305
ISO320025
ISO320032
ISO320038
ISO320044
ISO320051
ISO320064
ISO320076
ISO320089
ISO320102
ISO320115
ISO320127
ISO320139
ISO320152
ISO320305
216.0
168.0
129.0
112.0
94.0
72.1
59.7
50.5
44.2
38.4
34.1
31.0
28.2
15.0
810.0
806.4
735.3
739.2
719.1
692.2
680.6
674.2
676.3
662.4
649.6
646.4
643.0
686.3
3.8
4.8
5.7
6.6
7.7
9.6
11.4
13.4
15.3
17.3
19.1
20.9
22.8
45.8
1080.0
1075.2
980.4
985.6
958.8
922.9
907.4
898.9
901.7
883.2
866.1
861.8
857.3
915.0
5.0
6.4
7.6
8.8
10.2
12.8
15.2
17.8
20.4
23.0
25.4
27.8
30.4
61.0
1350.0
1344.0
1225.5
1232.0
1198.5
1153.6
1134.3
1123.6
1127.1
1104.0
1082.7
1077.3
1071.6
1143.8
6.3
8.0
9.5
11.0
12.8
16.0
19.0
22.3
25.5
28.8
31.8
34.8
38.0
76.3
7.5
9.6
11.0
13.0
15.0
19.0
23.0
27.0
31.0
35.0
38.0
42.0
46.0
91.0
25 12.5 25
32
38
44
51
64
76
89
102
115
127
139
152
178
203
305
ISO325025
ISO325032
ISO325038
ISO325044
ISO325051
ISO325064
ISO325076
ISO325089
ISO325102
ISO325115
ISO325127
ISO325139
ISO325152
ISO325178
ISO325203
ISO325305
375.0
297.0
219.0
187.0
156.0
123.0
99.0
84.0
73.0
65.0
57.7
52.7
47.8
41.0
35.8
22.9
1406.3
1425.6
1248.3
1234.2
1193.4
1180.8
1128.6
1121.4
1116.9
1121.3
1099.2
1098.8
1089.8
1094.7
1090.1
1047.7
3.8
4.8
5.7
6.6
7.7
9.6
11.4
13.4
15.3
17.3
19.1
20.9
22.8
26.7
30.5
45.8
1875.0
1900.8
1664.4
1645.6
1591.2
1574.4
1504.8
1495.2
1489.2
1495.0
1465.6
1465.1
1453.1
1459.6
1453.5
1396.9
5.0
6.4
7.6
8.8
10.2
12.8
15.2
17.8
20.4
23.0
25.4
27.8
30.4
35.6
40.6
61.0
2343.8
2376.0
2080.5
2057.0
1989.0
1968.0
1881.0
1869.0
1861.5
1868.8
1832.0
1831.3
1816.4
1824.5
1816.9
1746.1
6.3
8.0
9.5
11.0
12.8
16.0
19.0
22.3
25.5
28.8
31.8
34.8
38.0
44.5
50.8
76.3
7.5
9.6
11.0
13.0
15.0
19.0
23.0
27.0
31.0
35.0
38.0
42.0
46.0
53.0
61.0
91.0
32 16 38
44
51
64
76
89
102
115
127
139
152
178
203
254
305
ISO332038
ISO332044
ISO332051
ISO332064
ISO332076
ISO332089
ISO332102
ISO332115
ISO332127
ISO332139
ISO332152
ISO332178
ISO332203
ISO332254
ISO332305
388.0
324.0
272.0
212.0
172.0
141.0
122.0
107.0
93.0
86.0
78.0
67.2
59.1
46.4
38.0
2211.6
2138.4
2080.8
2035.2
1960.8
1882.4
1866.6
1845.8
1771.7
1793.1
1778.4
1794.2
1799.6
1767.8
1738.5
5.7
6.6
7.7
9.6
11.4
13.4
15.3
17.3
19.1
20.9
22.8
26.7
30.5
38.1
45.8
2948.8
2851.2
2774.4
2713.6
2614.4
2509.8
2488.8
2461.0
2362.2
2390.8
2371.2
2392.3
2399.5
2357.1
2318.0
7.6
8.8
10.2
12.8
15.2
17.8
20.4
23.0
25.4
27.8
30.4
35.6
40.6
50.8
61.0
3686.0
3564.0
3468.0
3392.0
3268.0
3137.3
3111.0
3076.3
2952.8
2988.5
2964.0
2990.4
2999.3
2946.4
2897.5
9.5
11.0
12.8
16.0
19.0
22.3
25.5
28.8
31.8
34.8
38.0
44.5
50.8
63.5
76.3
11.0
13.0
15.0
19.0
23.0
27.0
31.0
35.0
38.0
42.0
46.0
53.0
61.0
76.0
91.0
40 20 51
64
76
89
102
115
127
139
152
178
203
254
305
ISO340051
ISO340064
ISO340076
ISO340089
ISO340102
ISO340115
ISO340127
ISO340139
ISO340152
ISO340178
ISO340203
ISO340254
ISO340305
350.0
269.0
219.0
190.0
163.0
142.0
128.0
115.0
105.0
89.0
77.0
61.0
51.0
2677.5
2582.4
2496.6
2536.5
2493.9
2449.5
2438.4
2397.8
2394.0
2376.3
2344.7
2324.1
2333.3
7.7
9.6
11.4
13.4
15.3
17.3
19.1
20.9
22.8
26.7
30.5
38.1
45.8
3570.0
3443.2
3328.8
3382.0
3325.2
3266.0
3251.2
3197.0
3192.0
3168.4
3126.2
3098.8
3111.0
10.2
12.8
15.2
17.8
20.4
23.0
25.4
27.8
30.4
35.6
40.6
50.8
61.0
4462.5
4304.0
4161.0
4227.5
4156.5
4082.5
4064.0
3996.3
3990.0
3960.5
3907.8
3873.5
3888.8
12.8
16.0
19.0
22.3
25.5
28.8
31.8
34.8
38.0
44.5
50.8
63.5
76.3
15.0
19.0
23.0
27.0
31.0
35.0
38.0
42.0
46.0
53.0
61.0
76.0
91.0
50 25 64
76
89
102
115
127
139
152
178
203
254
305
ISO350064
ISO350076
ISO350089
ISO350102
ISO350115
ISO350127
ISO350139
ISO350152
ISO350178
ISO350203
ISO350254
ISO350305
413.0
339.0
288.0
245.0
215.0
192.0
168.0
154.0
134.0
117.0
89.0
73.0
3964.8
3864.6
3844.8
3748.5
3708.8
3657.6
3502.8
3511.2
3577.8
3562.7
3390.9
3339.8
9.6
11.4
13.4
15.3
17.3
19.1
20.9
22.8
26.7
30.5
38.1
45.8
5286.4
5152.8
5126.4
4998.0
4945.0
4876.8
4670.4
4681.6
4770.4
4750.2
4521.2
4453.0
12.8
15.2
17.8
20.4
23.0
25.4
27.8
30.4
35.6
40.6
50.8
61.0
6608.0
6441.0
6408.0
6247.5
6181.3
6096.0
5838.0
5852.0
5963.0
5937.8
5651.5
5566.3
16.0
19.0
22.3
25.5
28.8
31.8
34.8
38.0
44.5
50.8
63.5
76.3
19.0
23.0
27.0
31.0
35.0
38.0
42.0
46.0
53.0
61.0
76.0
91.0
Hole
(A)
Rod
(B)
Free
Length
(C)
Part
Number
Load @
1 mM Def.
(N)
Load
(N)
Deflection
(15% of
Length)
Load
(N)
Deflection
(20% of
Length)
Load
(N)
Deflection
(25% of
Length)
Max.
Deflection*
  For Optimum Life For Long Life Max. Operating Def.
* Theoretical limit. Not intended for operational use.