Fiber laser power and cutting thickness: what makers publish

Makers that publish cutting thickness rate their fiber lasers at 6 kW for 20–25 mm of mild steel, 10 kW for 25 mm of mild steel, 12 kW for 12.7–40 mm of mild steel, 20 kW for 45–50 mm of mild steel, 24 kW for 40 mm of mild steel, 30 kW for 50 mm of mild steel, 50 kW for 60 mm of mild steel. These are each maker’s stated maximums at the machine’s highest laser power; 6 makers in this catalog publish them (ACCURL, Bystronic, JFY, LVD, Salvagnini, TRUMPF).

What makers publish

One row per maker, series and laser power; the last column counts the machines (bed sizes) it covers.

Published maximum cutting thickness by laser power
Laser power	Maker and series	Mild steel	Stainless steel	Aluminium	Machines
6 kW	JFY BFC+ fiber laser	25 mm	25 mm	20 mm	1
6 kW	TRUMPF TruLaser Series 1000 Lean Edition	20 mm	20 mm	15 mm	3
10 kW	Salvagnini L3 fiber laser	25 mm	30 mm	30 mm	2
10 kW	Salvagnini L3.G4 gantry fiber laser	25 mm	30 mm	30 mm	2
10 kW	Salvagnini L5 high-dynamics fiber laser	25 mm	30 mm	30 mm	2
12 kW	ACCURL SMART Cube X compact fiber laser	30 mm	30 mm	30 mm	3
12 kW	JFY BFC+ fiber laser	40 mm	40 mm	40 mm	2
12 kW	LVD LaserTWO fiber laser	30 mm	30 mm	30 mm	2
12 kW	TRUMPF TruLaser Center 7030	12.7 mm	12.7 mm	6 mm	1
12 kW	TRUMPF TruLaser Series 1000 Basic Edition	30 mm	40 mm	30 mm	1
12 kW	TRUMPF TruLaser Series 1000 fiber	30 mm	40 mm	30 mm	3
12 kW	TRUMPF TruLaser Series 3000 Bevel Cut Edition	30 mm	40 mm	30 mm	3
15 kW	Bystronic ByCut Smart fiber laser	–	30 mm	–	4
20 kW	JFY BFC fiber laser	50 mm	50 mm	50 mm	3
20 kW	LVD Puma fiber laser	45 mm	30 mm	30 mm	4
24 kW	TRUMPF TruLaser Series 3000 fiber	40 mm	40 mm	40 mm	4
24 kW	TRUMPF TruLaser Series 5000	40 mm	40 mm	40 mm	3
30 kW	ACCURL MasterLINE X fiber laser	50 mm	40 mm	40 mm	5
30 kW	ACCURL Smart ECO SE large-format fiber laser	50 mm	40 mm	40 mm	4
30 kW	ACCURL SMART Giant X large-format fiber laser	50 mm	40 mm	40 mm	4
30 kW	ACCURL SmartLINE X fiber laser	50 mm	40 mm	40 mm	3
30 kW	Bystronic ByCut configurable fiber laser	–	50 mm	–	2
30 kW	LVD Taurus large-format fiber laser	50 mm	40 mm	40 mm	2
50 kW	TRUMPF TruLaser Series 8000 Power Edition	60 mm	60 mm	60 mm	4

Reading these figures

A maximum thickness is the thickest sheet the maker says the machine can cut, not the thickness it cuts at full speed or with the best edge. Makers measure it in their own way, for example with a given gas or edge quality, so compare a maker’s figures with each other more than with another maker’s. Most makers do not publish thickness at all; their machines are not in this table.

See the machines

Fiber lasers rated for 50 mm mild steel · 12 to 15 kW fiber lasers · 20–24 kW fiber lasers · 30 kW and above

How this guide was made

Figures about machines are computed from this catalog each time the page is built, so they follow the catalog (newest reading: 28 October 2026). They cover the machines whose makers publish each figure.
Facts from outside the catalog name their source, and makers are quoted only with sentences read on their own websites.
The text was drafted with an AI model (Claude, from Anthropic) and checked against the catalog and the sources below by Claude (AI) on 30 October 2026.

Sources

All guides