Endless spiral
Endless spirals are rolled out of one single piece. In lengths of 3.000 mm and made of the following materials: ST 37 and stainless steel 304, with a left or a right pitch. The following table shows the standard sizes of endless spirals.
Endless spirals (parameters in mm)
| outer diameter | inner diameter | thickness | pitch blade inside/ outside |
|---|---|---|---|
| 80 | 17 | 80 | 2,5/1,2 |
| 90 | 25 | 90 | 2,5/1,3 |
| 100 | 34 | 100 | 2,5/1,3 |
| 120 | 34 | 120 | 2,5/1,3 |
| 125 | 34 | 125 | 2,5/1,3 |
| 140 | 42 | 140 | 2,5/1,3 |
| 150 | 49 | 150 | 3,0/1,6 |
| 160 | 49 | 160 | 3,0/1,6 |
| 160 | 49 | 160 | 6,0/3,0 |
| 180 | 49 | 180 | 3,0/1,5 |
| 200 | 49 | 200 | 3,5/1,7 |
| 200 | 49 | 200 | 6,0/3,0 |
| 250 | 60 | 250 | 4,0/2,0 |
| 250 | 60 | 250 | 6,0/3,0 |
| 250 | 76 | 250 | 6,0/3,0 |
| 300 | 76 | 300 | 5,0/2,5 |
| 300 | 76 | 300 | 6,0/3,0 |
| 315 | 76 | 315 | 5,0/2,5 |
| 350 | 89 | 350 | 5,0/2,5 |
| 350 | 89 | 350 | 6,0/3,0 |
| 400 | 102 | 400 | 6,0/3,0 |
| 400 | 102 | 400 | 8,0/4,0 |
| 450 | 102 | 450 | 7,0/3,5 |