| Minimum Bend Radius (MBR) is the minimum radius that material can be bent into and still spring back flat. If material is bent beyond its MBR it will retain set and cancel the effect of straightening. MBR is based on material thickness and composition. Rule of thumb: MBR = 360 times material thickness for mild steel.
The loop must be supported into and out of the loop by cascade rolls at both ends. Without support the weight of the loop will induce set in the material as it's pulled out of the loop.
The depth of a loop determines the length required and the amount of material stored.
Additional loop length doesn't increase the amount of material storage. Only greater depth increases storage.
Loop Size and Accumulation Chart
Using the chart:
select material thickness and passline intersect LENGTH shows
desired loop length and STORED shows amount of slack |
| Loop Depth Material Passline Height |
Material
Thickness |
36" |
48" |
60" |
72" |
| Length |
Stored |
Length |
Stored |
Length |
Stored |
Length |
Stored |
| 0.032 |
3.8' |
56" |
3.8' |
87" |
3.8' |
120" |
3.8' |
155" |
| 0.063 |
7.3' |
31" |
7.6' |
57" |
7.6' |
81" |
7.6' |
105" |
| 0.090 |
9.6' |
27" |
10.4' |
43" |
10.7' |
57" |
10.8' |
88" |
| 0.125 |
12' |
22" |
13.2' |
35" |
14.1' |
50" |
14.6' |
65" |
| 0.156 |
13.7' |
20" |
15.3' |
31" |
16.5' |
44" |
17.4' |
59" |
| 0.187 |
15.2' |
18" |
17.1' |
28" |
18.6' |
40" |
19.8' |
53" |
| 0.212 |
16.4' |
17" |
18.5' |
26" |
20.2' |
37" |
21.6' |
50" |
| 0.250 |
18' |
15" |
20.3' |
24" |
22.3' |
34" |
24' |
45" |
| 0.312 |
20.3' |
13" |
23' |
21" |
25.4' |
30" |
27.4' |
40" |
| 0.375 |
22.4' |
12" |
25.6' |
19" |
28.2' |
27" |
30.5' |
36" |
|
