Tecnospiro Roscamat TS-VIII, Instruction Manual

Page: 21 / 24

TS VIII PNEUMATIC MOTOR 21
11.3 TURNING TORQUE (Nm) FOR THREADING
Metric thread Steel > 100 kg. Steel 80-100 kg. Steel < 80 kg.
Aluminium F.
Grey
3 0.9 0.6 0.5 0.4
4 2 1.3 1.2 0.8
5 3 2 2 1.3
6 5 4 4 2.4
8 11 8 8 5
10 20 15 14 9
12 33 24 23 14
14 50 36 35 22
16 57 42 40 26
18 101 73 70 45
20 112 81 78 50
22 123 90 86 55
24 194 140 135 86
27 218 158 152 97
30 330 240 230 150
33 364 260 252 160
36 - - 360 230
39 - - - 250
42 - - - 340
11.4 TAPS FOR THREAD CUTTING BY MACHINE
Blind hole Spiral grooved tap.
Lubrication.
Through hole
Tap with straight grooves and
helix inlet.
Steel > 80 kg. Angle of Breakout 8-10. Cutting oil with additives.
Steel < 80 kg. Angle of Breakout 12-14.
Cutting oil.
Steel < 50 kg. Stainless
steel Angle of Breakout 14-16.
Treatment of Surface.
Grey casting
Tap with straight grooves.
Treatment of Surface
Nitrided.
Angle of Breakout 5.
Petroleum, Cutting fluid, dry.
Duraluminium Angle of Breakout 12-15. Cutting fluid, dry.
Aluminium
Angle of Breakout 17-25.
Cutting oil with additives.
Plastics Cutting fluid, dry.