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A. The Draper 85937 is an oxy-acetylene cutting torch for cutting steel by igniting the metal in a stream of oxygen once heated to ignition temperature. It can also be used for heating, bending, and brazing with appropriate nozzles.
A. Essential safety equipment: flashback arrestors on both oxygen and acetylene hoses (fit close to the torch), compatible regulators for each gas, certified hoses, shade 5 welding goggles or a welding mask for cutting/welding, and fire-resistant clothing. Never use oxy-acetylene without flashback arrestors.
A. A flashback is when the flame burns back inside the hose and torch, potentially reaching the cylinder. Causes: blocked nozzle, hoses touching the work, incorrect pressures, or overheated torch. Prevention: always use flashback arrestors on both hoses, use correct gas pressures, keep nozzles clean, and purge hoses before lighting.
A. A neutral flame (equal oxygen and acetylene) is used for most welding — the inner cone is clearly defined with no excess feather. A reducing (carburising) flame has excess acetylene (used for hard-facing). An oxidising flame has excess oxygen (used for some brazing). Adjust valves slowly from a reducing flame to neutral.
A. Nozzle size is selected by material thickness — smaller numbers for thin sheet, larger for heavy sections. The full range of compatible nozzles (including cutting, welding, and heating nozzles) is in the Oxy-Acetylene Consumables section.
A. To light: open acetylene slightly, ignite with a friction lighter (never matches), increase acetylene to remove smoke, add oxygen to reach the required flame. To shut down: close the oxygen valve first, then the acetylene — this prevents soot deposition in the nozzle.
A. Propane can be used for heating and cutting (with a propane cutting nozzle) but not for welding — propane produces an oxidising flame that cannot create the neutral or reducing flame required for fusion welding. Propane cutting nozzles and regulators differ from acetylene types.
A. Store cylinders upright, secured against tipping. Store oxygen and acetylene separately or with at least 3m between them. Keep away from heat sources and flammable materials. Never store with regulators fitted when not in use. Cylinders must meet local regulations on storage quantity.
A. Essential accessories include a welding helmet, leather gauntlets, an earth clamp, and consumables for your welding process — wire and gas for MIG, electrodes for ARC/MMA, tungsten and gas for TIG. A wire brush and chipping hammer are needed for post-weld cleanup. A welding cart keeps your machine mobile.
A. Yes — UK stocked for fast despatch. Check availability at PartsForMachines.com. Orders placed before the daily cut-off are dispatched same or next working day. Check the product page for current delivery estimates.
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