Fiber laser cutter is a CNC machine for metal sheet precise cutting. Mainly for stainless steel, galvanized, mild steel, aluminum and brass.

Laser welding machine and this fiber laser cutting, can possibly provide ideal equipment for precise sheet metal manufacturing.

Cutting capacity of a typical 3Kw fiber CNC machine

Just as an indication, a 3Kw machine can cut 1mm carbon steel at 35m/min, with air pressure, which is quite fast.

The same machine cuts 1mm stainless steel at 45m/min under N2 gas and 1mm aluminum at 30m/min.

Material	Thickness	Speed	Power	Gas	Pressure	Nozzle	Focus	Height
Carbon	1mm	35m/min	3000W	N2/ Air	10bar	1.5S	0mm	1mm
	2mm	20m/min			10bar	2.0S	0mm	0.5mm
	2mm	5.5m/min	1200W	O2	1.6bar	1.0D	+3mm	0.8mm
	3mm	4m/min	2000W		0.6bar	1.0D	+4mm	0.8mm
	4mm	3.5m/min	2400W		0.6bar	1.0D	+4mm	0.8mm
	5mm	3.2m/min	2400W		0.6bar	1.2D	+4mm	0.8mm
	6mm	2.7m/min	3000W		0.6bar	1.2D	+4mm	0.8mm
	8mm	2.2m/min	3000W		0.6bar	1.2D	+4mm	0.8mm
	10mm	1.5m/min	3000W		0.6bar	1.2D	+4mm	0.8mm
	12mm	1m/min	2400W		0.6bar	3.0D	+4mm	0.8mm
	14mm	0.9m/min	2400W		0.6bar	3.0D	+4mm	0.8mm
	16mm	0.75m/min	2400W		0.6bar	3.5D	+4mm	0.8mm
	18mm	0.65m/min	2400W		0.6bar	4.0D	+4mm	0.8mm
	20mm	0.6m/min	2400W		0.6bar	4.0D	+4mm	0.8mm
	22mm	0.55m/min	2400W		0.6bar	4.0D	+4mm	0.8mm
Stainless	1mm	45m/min	3000W	N2	10bar	1.5S	0	0.8mm
	2mm	24m/min			12bar	2.0S	0	0.5mm
	3mm	10m/min			12bar	2.5S	-0.5	0.5mm
	4mm	6.5m/min			14bar	2.5S	-1.5	0.5mm
	5mm	3.6m/min			14bar	3.0S	-2.5	0.5mm
	6mm	2.7m/min			14bar	3.0S	-3	0.5mm
	8mm	1.2m/min			16bar	3.5S	-4.5	0.5mm
	10mm	0.8m/min	3000W	N2	16bar	4.0S	-6	0.5mm
Aluminum	1mm	30m/min	3000W	N2	12bar	1.5S	0	0.8mm
	2mm	18m/min			12bar	2.0S	0	0.5mm
	3mm	8m/min			14bar	2.0S	-1	0.5mm
	4mm	6m/min			14bar	2.5S	-2	0.5mm
	5mm	3.2m/min			16bar	3.0S	-3	0.5mm
	6mm	2m/min			16bar	3.0S	-3.5	0.5mm
	8mm	0.9m/min			16bar	3.5S	-4	0.5mm
Brass	1mm	28m/min	3000W	N2	12bar	1.5S	0	0.8mm
	2mm	15m/min			12bar	2.0S	0	0.5mm
	3mm	6m/min			14bar	2.5S	-1	0.5mm
	4mm	3m/min			14bar	3.0S	-2	0.5mm
	5mm	2.2m/min			14bar	3.0S	-2.5	0.5mm
	6mm	1.3m/min			16bar	3.0S	-3	0.5mm

Cutting capacity of a typical 6Kw fiber CNC machine

Material	Thickness	Speed	Power	Gas	Pressure	Nozzle	Focus	Height
Carbon	1mm	45m/min	6000W	N2/ Air	12bar	1.5S	0mm	1mm
	2mm	25m/min			12bar	2.0S	-1mm	0.5mm
	3mm	14m/min			14bar	2.0S	-1.5mm	0.5mm
	4mm	8m/min			14bar	2.0S	-2mm	0.5mm
	5mm	6.4m/min			16bar	3.0S	-2.5mm	0.5mm
	6mm	5m/min			16bar	3.5S	-3mm	0.5mm
	3mm	3.6-4.2m/min	2400W	N2	0.6bar	1.2E	+3mm	0.8mm
	4mm	3.3-3.8m/min	2400W		0.6bar	1.2E	+3mm	0.8mm
	5mm	3-3.6m/min	3000W		0.6bar	1.2E	+3mm	0.8mm
	6mm	2.7-3.2m/min	3300W		0.6bar	1.2E	+3mm	0.8mm
	8mm	2.2-2.5m/min	4200W		0.6bar	1.2E	+3mm	0.8mm
	10mm	2.0-2.3m/min	5500W		0.6bar	1.2E	+4mm	0.8mm
	12mm	0.9-1m/min	2200W		0.6bar	3.0D	+2.5mm	0.8mm
	12mm	1.9-2.1m/min	6000W		0.6bar	1.2E	+5mm	0.8mm
	14mm	0.8-0.9m/min	2200W		0.6bar	3.5D	+2.5mm	0.8mm
	14mm	1.4-1.7m/min	6000W		0.6bar	1.4E	+5mm	1mm
	16mm	0.8-0.9m/min	2200W		0.6bar	4.0D	+2.5mm	0.8mm
	16mm	1.2-1.4m/min	6000W		0.6bar	1.4E	+6mm	1mm
	18mm	0.65-0.75m/min	2200W		0.6bar	4.0D	+2.5mm	0.8mm
	20mm	0.6-0.7m/min	2400W		0.6bar	4.0D	+3mm	0.8mm
	22mm	0.55-0.65m/min	2400W		0.6bar	4.0D	+3mm	0.8mm
	25mm	0.5m/min	2400W		0.5bar	5.0D	+3mm	1mm
Stainless	1mm	60m/min	6000W	N2	10bar	1.5S	0mm	0.8mm
	2mm	30m/min			12bar	2.0S	-1mm	0.5mm
	3mm	18m/min			12bar	2.5S	-1.5mm	0.5mm
	4mm	12m/min			14bar	2.5S	-2mm	0.5mm
	5mm	8m/min			14bar	3.0S	-2.5mm	0.5mm
	6mm	5m/min			15bar	3.0S	-3mm	0.5mm
	8mm	3.8m/min			15bar	3.0S	-4mm	0.5mm
	10mm	2m/min			15bar	3.5S	-6mm	0.5mm
	12mm	1.2m/min			16bar	3.5S	-7.5mm	0.5mm
	14mm	1m/min			16bar	4.0S	-9mm	0.5mm
	16mm	0.6m/min			18bar	4.0S	-10.5mm	0.5mm
	18mm	0.5m/min			20bar	5.0S	-11mm	0.3mm
	20mm	0.3m/min			10bar	5.0S	-12mm	0.3mm
Aluminum	1mm	50m/min	6000W	N2	12bar	1.5S	0mm	1mm
	2mm	25m/min			12bar	2.0S	-1mm	0.5mm
	3mm	16m/min			14bar	2.5S	-1.5mm	0.5mm
	4mm	10m/min			14bar	2.5S	-2mm	0.5mm
	5mm	6m/min			14bar	3.0S	-3mm	0.5mm
	6mm	4m/min			16bar	3.0S	-3mm	0.5mm
	8mm	2m/min			16bar	3.0S	-4mm	0.5mm
	10mm	1.2m/min			18bar	3.5S	-4.5mm	0.5mm
	12mm	0.7m/min			18bar	4.0S	-5mm	0.5mm
	14mm	0.5m/min			18bar	4.0S	-5mm	0.3mm
	16mm	0.4m/min			20bar	5.0S	-8mm	0.3mm
Brass	1mm	40m/min	6000W	N2	12bar	1.5S	0mm	1mm
	2mm	20m/min			12bar	2.0S	-1mm	0.5mm
	3mm	14m/min			14bar	2.5S	-1mm	0.5mm
	4mm	9m/min			14bar	3.0S	-1.5mm	0.5mm
	5mm	5.5m/min			14bar	3.0S	-2mm	0.5mm
	6mm	3.8m/min			16bar	3.0S	-2.5mm	0.5mm
	8mm	1.8m/min			16bar	3.5S	-3mm	0.5mm
	10mm	1m/min			16bar	3.5S	-3mm	0.5mm
	12mm	0.7m/min			18bar	4.0S	-4mm	0.3mm

Why use fiber laser cutter for sheet metal cutting?

 

 

Advantages of Fiber Laser Cutting Technology

The Primary Advantages Of Cutting Flat Sheet Metal With Fiber Laser Technology Are Derived From Its Monolithic, Fiber-To-Fiber, Compact Solid State Design Configuration That Is Maintenance Free And Provides A Lower Cost Of Operation Than Can Be Achieved With Comparable CO2 Lasers.

Fiber laser beam characteristics also provide for much faster cutting speeds than CO2 lasers.

The focused beam of even a 2 kW Fiber laser demonstrates a 5X greater power density at the focal point when compared with a 4 kW CO2 laser. It also possesses a 2.5X greater absorption characteristic due to the shorter wavelength of the Fiber laser.

The higher absorption of the Fiber wavelength and the higher power density created by the focused beam combine to achieve up to a five time increase in cutting speeds in materials that are less than 1/4 inch thick.

Fiber laser cutting systems can certainly cut up to one-inch thick with higher Fiber laser powers and even cut faster when utilizing nitrogen as the assist gas, but the “sweet spot” where the most significant benefits are realized is in the 5/16 inch and under range for steel when making comparisons with CO2 systems. For certain, if you are processing stainless, aluminum, brass or copper materials, Fiber laser technology is the fastest and most economical regardless of thickness.