Laser cutting machine nozzle selection specifications
Jun 12, 2026
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laser cutting machine nozzle selection specifications
Should I buy a single-layer or double-layer cutting nozzle for my fiber laser cutting machine?
Applicable Equipment: Fiber Laser Cutting Machine
Applicable Industries: Sheet Metal Processing, Aluminum Profile/Door and Window Processing, Hardware Cutting
I. Single-Layer Cutting Nozzle (Single Spray) Usage Specifications
1. Applicable Gas: Nitrogen/Compressed Air
2. Applicable Materials: Stainless Steel, Aluminum Plate, Aluminum Profile, Copper, Galvanized Steel, and other non-carbon steel materials
3. Applicable Working Conditions: High-precision cutting of thin plates within 3mm; Small hole cutting, fine engraving, precision machining; Aluminum profile/aluminum alloy door and window cutting; Cutting of highly reflective materials (aluminum, copper) (with protective lens); Air-process cutting of thin carbon steel
4. Mnemonic: Stainless steel, aluminum, nitrogen, fine work → Use single-layer nozzle
II. Double-layer cutting nozzle (dual-spray) usage specifications
1. Applicable gas
Oxygen
2. Applicable materials
Carbon steel (iron plate, cold-rolled plate, hot-rolled plate)
3. Applicable working conditions
Conventional carbon steel oxygen cutting
Medium-thick plate cutting (3mm and above)
High-speed batch cutting, requiring no slag buildup
4. Mnemonic
Carbon steel, oxygen, medium-thick plate, fast cutting → Use double-layer nozzle
III. Quick Selection Reference Table
| Processing Material | Auxiliary Gas | Recommended Cutting Nozzle |
| Stainless Steel / Aluminum Plate / Aluminum Profile | Nitrogen | Single Layer |
| Thin Carbon Steel (Air Cutting) | Compressed Air | Single Layer |
| Carbon Steel (Iron Plate) | Oxygen | Double Layer |
| Thick Carbon Steel (>3mm) | Oxygen | Double Layer |
