Issue link: http://read.dmtmag.com/i/30867
Cutting & Heating Tips ProStar ® Cutting Tips ProStar Replacement Cutting Torch Tips Manufactured to meet the most rigid requirements of the metal fabrication industry, ProStar replacement torch tips are designed to fit the majority of gas equipment manufacturer styles for use in many common and special applications. Airco® General Cutting Tip Operating Ranges Material Thickness in. (mm) 1/8 (3.2) 1/4 (6.3) 1/2 (12.7) 3/4 (19.0) 1 (25.4) 1-1/2 (31.8) 2 (50.8) 4 (101.6) 5 (127.0) 6 (152.4) 8 (203.2) 10 (254.0) 12 (304.8) Recommended Tip Number 00 0 1 1 2 2 3 3 4 6 6 7 8 Oxygen Drill Size 68 60 56 56 54 54 52 49 44 38 31 28 20 Pressure (psig) 20–25 25–30 30–35 30–35 34–40 40–45 40–45 40–50 45–55 45–55 45–55 45–55 45–55 Fuel Gas Pressure (psig) 3–5 3–5 3–5 3–5 3–7 3–7 5–10 5–10 6–11 7–13 8–14 10–15 10–15 Cutting (ipm) 27–30 26–29 20–24 17–21 14–18 13–17 12–15 8–11 7–9 6–8 5–6 4–5 3–4 All data are approximate for estimating purposes and will vary due to materials, working conditions and operator skill and experience. Selecting the Right Tip 1-Piece vs. 2-Piece Tip When using Acetylene as a fuel gas, always use a one-piece tip. When using other fuel gases, a two- piece tip provides the most efficient operation for normal cutting. Harris® Koike® Oxweld® Smith® Purox® Victor® Choose Preheat Capacity The choice of tip depends on preheat capacity; rust and scale coated steel, as well as bevel cutting, requires heavy preheat. Choose Tip Series Select the size recommended for the thickness of steel to be cut; oversized tips waste gas; use the oxygen pressure recommended for the tip. A11 GAS EQUIPMENT