TOOTH SELECTION CHART FOR CUTTING OF PIPES / TUBES
D = Diameter
S = Wall thickness
D (mm)
20
40
60
80
100
120
150
200
300
400
500
600
700
S (mm)
Tooth pitch (TPI)
2
14
14
14
14
14
14
10-14
10-14
8-12
8-12
6-10
6-10
5-8
3
14
14
10-14
10-14
10-14
10-14
8-12
8-12
6-10
6-10
5-8
5-8
5-8
4
14
14
10-14
10-14
8-12
8-12
8-12
8-12
5-8
5-8
4-6
4-6
4-6
5
14
10-14
10-14
10-14
8-12
8-12
8-12
6-10
5-8
5-8
4-6
4-6
4-6
6
14
10-14
10-14
8-12
8-12
8-12
8-12
5-8
5-8
4-6
4-6
4-6
3-4
8
14
10-14
8-12
8-12
8-12
6-10
6-10
5-8
4-6
4-6
4-6
3-4
3-4
10
8-12
6-10
6-10
6-10
5-8
5-8
4-6
4-6
4-6
3-4
3-4
3-4
12
8-12
6-10
6-10
5-8
5-8
4-6
4-6
4-6
3-4
3-4
3-4
3-4
15
8-12
6-10
5-8
5-8
4-6
4-6
4-6
3-4
3-4
3-4
2-3
2-3
20
6-10
5-8
4-6
4-6
4-6
3-4
3-4
3-4
2-3
2-3
2-3
30
4-6
4-6
4-6
3-4
3-4
3-4
2-3
2-3
2-3
2-3
50
3-4
3-4
3-4
2-3
2-3
2-3
2-3
75
2-3
2-3
2-3
2-3
2-3
1.4-2
100
2-3
2-3
1.4-2
1.4-2
1.4-2
150
2-3
1.4-2
1.4-2
1.4-2
200
1.4-2
1.4-2
1.4-2
BLADE BREAK-IN EXTREMELY IMPORTANT
The extremely sharp tooth tip and edges of new blades must be broken-in before applying A good analogy is that of writing with a freshly sharpened wooden pencil.
RECOMENDED PROCEDURE
* Maintain proper blade speed for the material to be cut.
* Reduce blade feed pressure or feed rate by 50% for the first 300 to 500 square cm of material cut.
* Gradually increase feed pressure or feed rate after break-in to full pressure or rate.
