Page 7 - ProStar Product Guide

Recommended Operational Guidelines

HAND CUTTING OPERATING RANGES
Plate Cutting Oxygen Oxygen Oxygen Fuel Flow Fuel Cut Kerf Cutting Range
Thickness Speed Preheat Cut Flow Pressure cfh Pressure in
in ipm psig cfh psig psig
1/8 20 – 30 5 – 6 20 – 25 20 – 25 6 – 11 3 – 5 0.04
1/4 20 – 28 5 – 7 30 – 35 20 – 25 6 – 11 3 – 5 0.05
3/8 18 – 26 8 – 10 55 – 60 25 – 30 6 – 11 3 – 5 0.06 LIGHT DUTY HEAVY DUTY GAS EQUIPMENT
1/2 16 – 22 8 – 10 60 – 65 30 – 35 8 – 13 3 – 7 0.06
3/4 15 – 20 10 – 12 80 – 85 30 – 35 9 – 16 3 – 7 0.07 STRAIGHT CUTTING TORCH
1 13 – 18 12 – 15 140 – 160 35 – 40 10 – 18 3 – 7 0.09
2 10 – 12 14 – 18 210 – 240 40 – 45 14 – 25 4 – 8 0.11
3 10 – 12 16 – 20 280 – 320 40 – 45 18 – 28 5 – 11 0.12
4 6 – 9 20 – 30 390 – 450 45 – 55 20 – 30 6 – 13 0.15
6+* 4 – 6 25 – 35 500 – 600 30 – 40 22 – 30 8 – 14 0.15
*3/8” inside diameter (ID) minumum hose requirement

MACHINE CUTTING OPERATING RANGES
Plate Cutting Oxygen Oxygen Oxygen Fuel Flow Fuel Cut Kerf Tip
Thickness Speed Preheat Cut Flow Pressure cfh Pressure in
in ipm psig cfh psig psig
3/8 22 – 29 25 – 45 68 – 75 85 – 95 6 – 11 5 – 10 0.05 00
1/2 20 – 28 45 – 65 110 – 120 85 – 95 8 –13 5 – 10 0.06 0
3/4 18 – 26 45 – 75 110 – 120 85 – 95 9 – 16 5 – 10 0.06 0
1 17 – 24 75 – 100 145 – 160 85 – 95 10 – 18 5 – 10 0.07 1
2 11 – 15 90 – 110 230 – 250 85 – 95 14 – 25 7 – 12 0.09 2
3 9 – 11 90 – 110 230 – 250 85 – 95 18 – 28 7 – 12 0.09 2
4 7 – 10 100 – 120 285 – 320 85 – 95 22 – 35 7 – 12 0.11 3
6+ 4 – 7 100 – 120 285 – 320 85 – 95 27 – 37 10 – 15 0.11 3
8+ 4 – 6 110 – 130 390 – 450 85 – 95 25 – 65 10 – 15 0.14 4
10+ 3 – 5 120 – 140 670 – 720 85 – 95 25 – 65 10 – 15 0.18 5

STAY SAFE WHEN USING OXY-ACETYLENE
• Always wear the proper welding goggles, gloves, • Store and use cylinders in the upright position, and
and clothing. never store cylinders in temperatures over 125 °F (52 °C).
• Always use the proper regulator for the gas in the cylinder. • Remove lighters or matches from pockets when
• Always close the cylinder valves and replace cylinder welding or cutting.
caps when finished using cylinders. • Ensure welding hoses do not touch the torch flame or
• Always conduct a risk assessment before welding or sparks when cutting.
cutting, and have a fire extinguisher handy. • When using a torch, always be aware of others near you.

1-800 225 8247 www.praxairwelding.com A3