Dross, poor edge, or slow cutting
Assist-gas issues can cause quality problems. Whether the fix is gas selection, higher pressure, more storage, or better filtration should be reviewed against the laser OEM guidance.
Industrial Project ApplicationsMetalworking and Fabrication
Compressed Air and Nitrogen Systems for Industrial Laser Cutting
Industrial fiber laser cutting uses an assist gas to blow molten material out of the kerf. Compressed air can be a suitable assist gas for many materials and thicknesses, but not all. Nitrogen is used where cleaner cut edges are required, particularly on stainless steel and aluminum.
Carolina Compressed Air reviews industrial compressed-air projects throughout North Carolina and South Carolina.
Application Overview
What This Application Involves
Industrial fiber laser cutting uses an assist gas to blow molten material out of the kerf. Compressed air can be a suitable assist gas for many materials and thicknesses, but not all. Nitrogen is used where cleaner cut edges are required, particularly on stainless steel and aluminum.
Gas selection, purity, pressure, and flow should follow the laser manufacturer and the specific cutting requirements. On-site nitrogen generation is one option; delivered nitrogen is another. The right approach depends on machine, material mix, run time, and cost profile.
Air Usage
Where Compressed Air Is Involved
- Assist gas where compressed air is appropriate
- Machine controls and pneumatics
- Sheet handling and automation
- Blow-off and part clearing
- Feed into nitrogen generation
System Design
Why Compressor-System Design Matters
- ●Purity required by the laser and material
- ●Pressure and flow at the nozzle
- ●Dew point suitable for cutting quality and machine health
- ●High-pressure storage for stable cuts
- ●Redundancy for continuous shifts
Symptoms
Problems an Inadequate System Can Cause
Water or oil in the cutting gas
Contamination can damage the cutting head and reduce quality. Drying and filtration must match the machine requirements.
High delivered-gas costs on high-nitrogen materials
Facilities cutting heavy amounts of stainless or aluminum sometimes evaluate an on-site nitrogen generator to reduce delivered volume.
These symptoms may be connected to the compressed-air supply and should be evaluated alongside the machine itself.
Equipment
Equipment That May Be Part of the Project
- Rotary screw air compressor sized for cutting demand
- High-pressure booster
- High-pressure storage
- Refrigerated and desiccant dryers
- Multi-stage coalescing filtration
- PSA nitrogen generator
- Monitoring for pressure, flow, and dew point
- Ambient Air
- Compressor
- Receiver
- Dryer
- Filtration
- Booster
- HP Storage
- Nitrogen Generator
- Machine or Process
Example system arrangement. Final configuration depends on application requirements.
Equipment selection follows application review. Final choices depend on OEM requirements, measured demand, air quality, dew point, and site conditions.
Checklist
Information Needed to Evaluate the Project
- ✓Machine manufacturer
- ✓Machine model
- ✓OEM air requirements
- ✓Required pressure
- ✓Required flow
- ✓Number of machines
- ✓Production schedule
- ✓Expected simultaneous operation
- ✓Current compressor equipment
- ✓Current dryer and filtration
- ✓Existing receiver capacity
- ✓Existing pipe size and material
- ✓Distance from the compressor room
- ✓Required air quality
- ✓Required dew point
- ✓Current operating problems
- ✓Redundancy expectations
- ✓Installation schedule
- ✓Facility location
- ✓Photos, drawings, equipment data sheets
- ✓Laser make, model, and wattage
- ✓Typical materials and thickness range
- ✓Current assist-gas source and monthly consumption
- ✓Nitrogen purity target
If the exact air demand is unknown, submit the machine information, available equipment documents, and expected production schedule. The system requirements can then be reviewed before equipment is selected.
Carolinas Coverage
Industrial Compressed Air Projects Across the Carolinas
Carolina Compressed Air actively reviews new machinery, production expansion, compressor-room replacement, air-treatment, piping, blower, vacuum, and nitrogen-generation opportunities throughout North Carolina and South Carolina.
North Carolina markets include Charlotte, Concord, Gastonia, Statesville, Hickory, Mooresville, Greensboro, Winston-Salem, High Point, Raleigh, Durham, Fayetteville, and Wilmington. South Carolina markets include Rock Hill, Fort Mill, Greenville, Spartanburg, Columbia, and Charleston.
Related
Related Application Pages
- Compressed Air Systems for On-Site Nitrogen GenerationPSA and membrane nitrogen systems fed by properly designed compressed-air supply and storage.Explore this application →
- Compressed Air Systems for CNC Machines and Machining FacilitiesReliable air supply for CNC tool changers, workholding, spindle sealing, and production machining plants.Explore this application →
- Compressed Air Systems for Automotive Manufacturing and AssemblyAir supply for robotic welding, assembly tooling, paint operations, leak testing, and plant utility air.Explore this application →
- Compressed Air Systems for Foundries and Metal-Casting PlantsAir supply, cleaning, and controls for foundries and metal-casting operations.Explore this application →
FAQ
Frequently Asked Questions
+Is compressed air a suitable assist gas?
It can be for certain materials and thicknesses. The laser OEM and application should confirm whether air, nitrogen, or oxygen is appropriate.
+What pressure and flow do we need?
It varies by machine, nozzle, and material. The cutting specifications from the laser manufacturer are the starting point, together with a review of storage and piping.
+When does on-site nitrogen generation make sense?
It often makes sense at higher monthly volumes where the payback against delivered gas is reasonable, and where the required purity and flow are within a suitable generator range.
+What information do we need to review a project?
Laser make and model, materials and thickness mix, run schedule, current gas source and consumption, and site location.
Submit the Project for Review
Planning a Compressed Air Project for This Application?
Send us the machine information, equipment requirements, facility location, and desired schedule. Carolina Compressed Air will review the application and determine what additional information is needed to evaluate the compressor, air treatment, storage, piping, blower, vacuum, or nitrogen requirements.
Prefer to talk first? Call (704) 268-6901.