Cigweld COMET cutting nozzles can oxy-fuel cut mild steel and other common fabrication materials. They’re used for straight cutting, trimming, plate preparation, and general demolition work when paired with compatible COMET cutting torches and gas equipment.
Oxy-acetylene cutting nozzles utilise acetylene as the fuel gas, while other fuel gases (such as LPG or propane) require different nozzle designs that match their combustion and flow properties. Oxy-acetylene cutting nozzles have port designs and flow characteristics optimised for oxy-acetylene flame settings.
Select your oxy-acetylene cutting nozzle sizes based on the material thickness, the required cut quality, and your desired cutting speed. A thinner plate uses smaller nozzles, while a heavier plate needs larger nozzles with higher gas flow. Always refer to the cutting data for the specific Cigweld nozzle, and set your gas pressures accordingly.
No. Using a single nozzle size for every job can result in poor cut quality, excessive slag, and wasted gas. Undersized nozzles struggle on thick material, while oversized nozzles can overheat and damage the thin plate. It’s best to keep a range of Cigweld cutting nozzle sizes on hand and match them to the job.
Signs that a nozzle may need replacing include difficulty achieving a stable flame, uneven preheat ports, poor cut quality, or excessive slag, even with correct settings. Physical damage, blocked and uncleanable ports, and distorted tip faces are all indicators that it’s time to replace the nozzle.
Allow the nozzle to cool, then use the correct tip cleaners and soft brushes to remove slag and spatter from the ports. Avoid using drills, files, or sturdy objects that can damage the precision-machined passages. Keep the nozzle seating surfaces clean so it seals properly in the COMET cutting torch.
You can use Cigweld cutting nozzles with specific COMET cutting torch models and heads. Check the product information or compatibility charts to ensure you select the correct nozzle series and size for your torch. Using the right combination helps maintain safety and performance.
Many oxy-acetylene cutting nozzles are designed explicitly for acetylene use and should not be used with other fuel gases unless specified by the manufacturer. Always check the nozzle markings and documentation for accuracy. If you need to use LPG or another gas, select the correct Cigweld nozzle type for that gas.
Incorrect gas pressures can cause backfiring, poor cut quality, unstable flame, and increased wear on the nozzle and torch. Running pressures that are too high can be unsafe, while pressures that are too low may not provide sufficient support for the cut. Always set pressures to the recommended values for your chosen Cigweld cutting nozzle size.
Yes. Flashback arrestors are an essential safety device when using oxy-fuel equipment, including COMET cutting nozzles. They help protect operators and equipment in the event of a flashback, and should be installed, inspected, and replaced according to safety guidelines and manufacturer recommendations.
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