Fiber Laser Cutting Parameters: Complete Reference Tables

Fiber laser cutting parameters: complete tables by material and thickness

Reference cutting parameter tables for fiber lasers from 1.5 to 20 kW. Carbon steel, stainless steel, aluminum, brass, copper. Speed, gas, pressure, nozzle, focus position, cutting height.

These are reference recommendations. Actual parameters depend on metal quality, gas purity, optics condition, and cutting head model. Use as a starting point and adjust based on test cut results.

This page contains condensed reference tables. The full parameter database with an extended range of materials, thicknesses, and powers is available in our free Telegram bot SBM Laser Help. Beyond parameters, the bot can diagnose cut defects from photos, look up error codes, calculate gas consumption, and more — learn more about the bot.

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1.5 kW (fiber core 50 µm, collimation 100 mm, focus 125 mm)

Carbon steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 20 1 500 N₂ / Air 10 1.5S 0 1
2 5 1 500 O₂ 2 1.2D +3 0.8
3 3.6 1 500 O₂ 0.6 1.2D +3 0.8
4 2.5 1 500 O₂ 0.6 1.2D +3 0.8
5 1.8 1 500 O₂ 0.6 1.2D +3 0.8
6 1.4 1 500 O₂ 0.6 1.5D +3 0.8
8 1.2 1 500 O₂ 0.6 1.5D +3 0.8
10 1.0 1 500 O₂ 0.6 2.0D +2.5 0.8
12 0.8 1 500 O₂ 0.6 2.5D +2.5 0.8
14 0.65 1 500 O₂ 0.6 3.0D +2.5 0.8
16 0.5 1 500 O₂ 0.6 3.0D +2.5 0.8

Stainless steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 20 1 500 N₂ 10 1.5S 0 0.8
2 7 1 500 N₂ 12 2.0S –1 0.5
3 4.5 1 500 N₂ 12 2.5S –1.5 0.5
5 1.5 1 500 N₂ 14 3.0S –2.5 0.5
6 0.8 1 500 N₂ 16 3.0S –3 0.5

Aluminum alloy

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 18 1 500 N₂ 12 1.5S 0 0.5
2 6 1 500 N₂ 14 2.0S –1 0.5
3 2.5 1 500 N₂ 14 2.5S –1.5 0.5
4 0.8 1 500 N₂ 16 3.0S –2 0.5

Brass

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 15 1 500 N₂ 12 1.5S 0 0.5
2 5 1 500 N₂ 14 2.0S –1 0.5
3 1.8 1 500 N₂ 14 2.5S –1.5 0.5

2 kW (fiber core 50 µm, collimation 100 mm, focus 125 mm)

Carbon steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 25 2 000 N₂ / Air 10 1.5S 0 1
2 9 2 000 N₂ / Air 10 2.0S –1 0.5
2 5.2 2 000 O₂ 1.6 1.0D +3 0.8
3 4.2 2 000 O₂ 0.6 1.0D +3 0.8
4 3 2 000 O₂ 0.6 1.0D +3 0.8
5 2.2 2 000 O₂ 0.6 1.2D +3 0.8
6 1.8 2 000 O₂ 0.6 1.2D +3 0.8
8 1.3 2 000 O₂ 0.5 2.0D +2.5 0.8
10 1.1 2 000 O₂ 0.5 2.0D +2.5 0.8
12 0.9 2 000 O₂ 0.5 2.5D +2.5 0.8
14 0.8 2 000 O₂ 0.5 3.0D +2.5 0.8
16 0.7 2 000 O₂ 0.6 3.5D +2.5 0.8
18 0.5 2 000 O₂ 0.6 4.0D +3 0.8
20 0.4 2 000 O₂ 0.6 4.0D +3 0.8

Stainless steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 28 2 000 N₂ 10 1.5S 0 0.8
2 10 2 000 N₂ 12 2.0S –1 0.5
3 5 2 000 N₂ 12 2.0S –1.5 0.5
4 3 2 000 N₂ 14 2.5S –2 0.5
5 2 2 000 N₂ 14 3.0S –2.5 0.5
6 1.5 2 000 N₂ 14 3.0S –3 0.5
8 0.6 2 000 N₂ 16 3.0S –4 0.5

Aluminum alloy

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 20 2 000 N₂ 12 1.5S 0 0.8
2 10 2 000 N₂ 12 2.0S –1 0.5
3 4 2 000 N₂ 14 2.0S –1.5 0.5
4 1.5 2 000 N₂ 14 2.5S –2 0.5
5 0.9 2 000 N₂ 16 3.0S –2.5 0.5
6 0.6 2 000 N₂ 16 3.0S –3 0.5

Brass

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 18 2 000 N₂ 12 1.5S 0 0.8
2 8 2 000 N₂ 12 2.0S –1 0.5
3 3 2 000 N₂ 14 2.5S –1.5 0.5
4 1.3 2 000 N₂ 16 3.0S –2 0.5
5 0.8 2 000 N₂ 16 3.0S –2.5 0.5

3 kW (fiber core 50 µm, collimation 100 mm, focus 150 mm)

Carbon steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 35 3 000 N₂ / Air 10 1.5S 0 1
2 20 3 000 N₂ / Air 10 2.0S 0 0.5
2 5.5 1 200 O₂ 1.6 1.0D +3 0.8
3 4 2 000 O₂ 0.6 1.0D +4 0.8
4 3.5 2 400 O₂ 0.6 1.0D +4 0.8
5 3.2 2 400 O₂ 0.6 1.2D +4 0.8
6 2.7 3 000 O₂ 0.6 1.2D +4 0.8
8 2.2 3 000 O₂ 0.6 1.2D +4 0.8
10 1.5 3 000 O₂ 0.6 1.2D +4 0.8
12 1.0 2 400 O₂ 0.6 3.0D +4 0.8
14 0.9 2 400 O₂ 0.6 3.0D +4 0.8
16 0.75 2 400 O₂ 0.6 3.5D +4 0.8
18 0.65 2 400 O₂ 0.6 4.0D +4 0.8
20 0.60 2 400 O₂ 0.6 4.0D +4 0.8
22 0.55 2 400 O₂ 0.6 4.0D +4 0.8

Stainless steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 45 3 000 N₂ 10 1.5S 0 0.8
2 24 3 000 N₂ 12 2.0S 0 0.5
3 10 3 000 N₂ 12 2.5S –0.5 0.5
4 6.5 3 000 N₂ 14 2.5S –1.5 0.5
5 3.6 3 000 N₂ 14 3.0S –2.5 0.5
6 2.7 3 000 N₂ 14 3.0S –3 0.5
8 1.2 3 000 N₂ 16 3.5S –4.5 0.5
10 0.8 3 000 N₂ 16 4.0S –6 0.5

Aluminum alloy

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 30 3 000 N₂ 12 1.5S 0 0.8
2 18 3 000 N₂ 12 2.0S 0 0.5
3 8 3 000 N₂ 14 2.0S –1 0.5
4 6 3 000 N₂ 14 2.5S –2 0.5
5 3.2 3 000 N₂ 16 3.0S –3 0.5
6 2 3 000 N₂ 16 3.0S –3.5 0.5
8 0.9 3 000 N₂ 16 3.5S –4 0.5

Brass

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 28 3 000 N₂ 12 1.5S 0 0.8
2 15 3 000 N₂ 12 2.0S 0 0.5
3 6 3 000 N₂ 14 2.5S –1 0.5
4 3 3 000 N₂ 14 3.0S –2 0.5
5 2.2 3 000 N₂ 14 3.0S –2.5 0.5
6 1.3 3 000 N₂ 16 3.0S –3 0.5

6 kW (fiber core 100 µm, collimation 100 mm, focus 150 mm)

Carbon steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 45 6 000 N₂ / Air 12 1.5S 0 1
2 25 6 000 N₂ / Air 12 2.0S –1 0.5
3 14 6 000 N₂ / Air 14 2.0S –1.5 0.5
4 8 6 000 N₂ / Air 14 2.0S –2 0.5
5 6.4 6 000 N₂ / Air 16 3.0S –2.5 0.5
6 5 6 000 N₂ / Air 16 3.5S –3 0.5
3 3.6–4.2 2 400 O₂ 0.6 1.2E +3 0.8
4 3.3–3.8 2 400 O₂ 0.6 1.2E +3 0.8
5 3.0–3.6 3 000 O₂ 0.6 1.2E +3 0.8
6 2.7–3.2 3 300 O₂ 0.6 1.2E +3 0.8
8 2.2–2.5 4 200 O₂ 0.6 1.2E +3 0.8
10 2.0–2.3 5 500 O₂ 0.6 1.2E +4 0.8
12 1.9–2.1 6 000 O₂ 0.6 1.2E +5 0.8
14 1.4–1.7 6 000 O₂ 0.6 1.4E +5 1.0
16 1.2–1.4 6 000 O₂ 0.6 1.4E +6 1.0
18 0.65–0.75 2 200 O₂ 0.6 4.0D +2.5 0.8
20 0.6–0.7 2 400 O₂ 0.6 4.0D +3 0.8
22 0.55–0.65 2 400 O₂ 0.6 4.0D +3 0.8
25 0.5 2 400 O₂ 0.5 5.0D +3 1.0

Stainless steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 60 6 000 N₂ 10 1.5S 0 0.8
2 30 6 000 N₂ 12 2.0S –1 0.5
3 18 6 000 N₂ 12 2.5S –1.5 0.5
4 12 6 000 N₂ 14 2.5S –2 0.5
5 8 6 000 N₂ 14 3.0S –2.5 0.5
6 5 6 000 N₂ 15 3.0S –3 0.5
8 3.8 6 000 N₂ 15 3.0S –4 0.5
10 2 6 000 N₂ 15 3.5S –6 0.5
12 1.2 6 000 N₂ 16 3.5S –7.5 0.5
14 1 6 000 N₂ 16 4.0S –9 0.5
16 0.6 6 000 N₂ 18 4.0S –10.5 0.5
18 0.5 6 000 N₂ 20 5.0S –11 0.3
20 0.3 6 000 N₂ 20 5.0S –12 0.3

Aluminum alloy

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 50 6 000 N₂ 12 1.5S 0 1
2 25 6 000 N₂ 12 2.0S –1 0.5
3 16 6 000 N₂ 14 2.5S –1.5 0.5
4 10 6 000 N₂ 14 2.5S –2 0.5
5 6 6 000 N₂ 14 3.0S –3 0.5
6 4 6 000 N₂ 16 3.0S –3 0.5
8 2 6 000 N₂ 16 3.0S –4 0.5
10 1.2 6 000 N₂ 18 3.5S –4.5 0.5
12 0.7 6 000 N₂ 18 4.0S –5 0.5
14 0.5 6 000 N₂ 18 4.0S –5 0.3
16 0.4 6 000 N₂ 20 5.0S –8 0.3

Brass

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 40 6 000 N₂ 12 1.5S 0 1
2 20 6 000 N₂ 12 2.0S –1 0.5
3 14 6 000 N₂ 14 2.5S –1 0.5
4 9 6 000 N₂ 14 3.0S –1.5 0.5
5 5.5 6 000 N₂ 14 3.0S –2 0.5
6 3.8 6 000 N₂ 16 3.0S –2.5 0.5
8 1.8 6 000 N₂ 16 3.5S –3 0.5
10 1 6 000 N₂ 16 3.5S –3 0.5
12 0.7 6 000 N₂ 18 4.0S –4 0.3

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12 kW (fiber core 100 µm, collimation 100 mm, focus 200 mm)

Carbon steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 50–80 12 000 N₂ / Air 12 1.5S 0 1
2 45–48 12 000 N₂ / Air 12 2.0S 0 0.5
3 30–38 12 000 N₂ / Air 13 2.0S 0 0.5
4 20–26 12 000 N₂ / Air 13 2.5S 0 0.5
5 15–20 12 000 N₂ / Air 13 2.5S 0 0.5
6 10–13 12 000 N₂ / Air 13 2.5S 0 0.5
8 7–10 12 000 N₂ / Air 13 3.0S –1.5 0.5
10 5–6.5 12 000 N₂ / Air 13 4.0S –3 0.5
10 2.3 6 000 O₂ 0.6 1.2E +6 0.8
12 2 7 500 O₂ 0.6 1.2E +7 0.8
14 1.8 8 500 O₂ 0.6 1.4E +7 0.8
16 1.6 9 500 O₂ 0.6 1.4E +8 0.8
20 1.4 12 000 O₂ 0.6 1.6E +8 0.8
22 1.2 12 000 O₂ 0.7 1.4SP +11 0.5
25 0.95 12 000 O₂ 0.7 1.5SP +12 0.5
30 0.8 12 000 O₂ 0.8 1.5SP +12 0.5
40 0.3 12 000 O₂ 1.5 1.8E +11.5 1.2

Stainless steel (N₂)

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 63 12 000 N₂ 10 2.0S 0 1
2 42 12 000 N₂ 12 2.0S 0 0.5
3 33 12 000 N₂ 13 2.0S 0 0.5
4 27 12 000 N₂ 12 2.0S 0 0.5
5 18 12 000 N₂ 15 2.5S 0 0.5
6 15 12 000 N₂ 8 3.5B 0 0.5
8 10 12 000 N₂ 7 5.0B 0 0.5
10 7.5 12 000 N₂ 5 5.0B –1 0.5
12 5.5 12 000 N₂ 6 6.0B –4 0.5
14 3.5 12 000 N₂ 6 7.0B –6 0.3
16 2.3 12 000 N₂ 6 7.0B –8 0.3
18 1.5 12 000 N₂ 6 7.0B –9 0.5
20 1.45 12 000 N₂ 6 7.0B –11 0.3
25 0.9 12 000 N₂ 6 7.0B –13 0.3
30 0.26 12 000 N₂ 10 7.0B +7 0.3
40 0.15 12 000 N₂ 15 7.0B +8 0.3

Stainless steel (Air)

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 60 12 000 Air 10 2.0S 0 1
2 38 12 000 Air 10 2.5S 0 0.5
3 28 12 000 Air 10 2.5S 0 0.5
4 25 12 000 Air 10 3.5B 0 0.5
5 18 12 000 Air 10 3.5B 0 0.5
6 15 12 000 Air 10 3.5B 0 0.5
8 10 12 000 Air 10 3.5B 0 0.5
10 6.5 12 000 Air 10 3.5B –1 0.5
12 4.5 12 000 Air 10 5.0B –4 0.5
14 2.6 12 000 Air 10 5.0B –6 0.5
16 2.3 12 000 Air 10 5.0B –8 0.5
18 1.9 12 000 Air 10 5.0B –9 0.5
20 1.4 12 000 Air 10 5.0B –11 0.3
25 1.0 12 000 Air 10 5.0B –13 0.3
30 0.28 12 000 Air 10 5.0B +7 0.3

Aluminum alloy

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 45 12 000 N₂ 12 2.0S 0 0.8
2 35 12 000 N₂ 12 2.0S –1 0.5
3 25 12 000 N₂ 12 2.0S –1 0.5
4 20 12 000 N₂ 12 2.0S –2 0.5
5 16 12 000 N₂ 14 2.5S –3 0.5
6 11 12 000 N₂ 14 2.5S –3 0.5
8 7 12 000 N₂ 14 2.5S –4 0.5
10 5 12 000 N₂ 14 5.0B –5 0.5
12 2.6 12 000 N₂ 16 5.0B –5 0.5
14 1.7 12 000 N₂ 16 5.0B –5 0.5
16 1.6 12 000 N₂ 16 5.0B –5 0.5
18 1.3 12 000 N₂ 16 5.0B –5 0.5
20 1.0 12 000 N₂ 16 7.0B –5 0.3
25 0.6 12 000 N₂ 16 7.0B –5 0.3
30 0.45 12 000 N₂ 18 7.0B +7 0.3
40 0.3 12 000 N₂ 18 7.0B +8 0.3

Brass

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 40 12 000 N₂ 12 2.0S 0 1.0
2 35 12 000 N₂ 12 2.0S –1 0.5
3 22 12 000 N₂ 12 2.0S –1 0.5
4 18 12 000 N₂ 12 2.0S –2 0.5
5 15 12 000 N₂ 14 2.5S –3 0.5
6 10 12 000 N₂ 14 2.5S –3 0.5
8 7 12 000 N₂ 14 2.5S –4 0.5
10 5 12 000 N₂ 14 5.0B –5 0.5
12 2.4 12 000 N₂ 14 5.0B –5 0.5
14 1.4 12 000 N₂ 16 5.0B –8 0.5
16 1 12 000 N₂ 16 5.0B –11 0.3

Copper

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 35 12 000 O₂ 5 2.0S –0.5 1.0
2 25 12 000 O₂ 5 2.0S –1 0.5
3 18 12 000 O₂ 6 2.0S –2 0.5
4 12 12 000 O₂ 8 2.0S –3 0.5
5 8 12 000 O₂ 8 2.5S –4.5 0.5
6 5 12 000 O₂ 8 2.5S –5 0.5
8 2.5 12 000 O₂ 10 3.0S –6 0.5
10 1.2 12 000 O₂ 12 4.0S –8 0.5

20 kW (fiber core 100 µm, collimation 100 mm, focus 200 mm)

Carbon steel

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
5 25–28 20 000 N₂ / Air 8 3.0S 0 0.5
6 21–25 20 000 N₂ / Air 8 3.0S –0.5 0.5
8 13–15 20 000 N₂ / Air 8 3.0S –1 0.5
10 10–13 20 000 N₂ / Air 8 3.5S –1.5 0.5
12 8–9 20 000 N₂ / Air 8 3.5S –2 0.5
14 6–7 20 000 N₂ / Air 8 4.0S –3 0.5
16 5–6 20 000 N₂ / Air 8 5.0S –4 0.5
18 3.2–4 20 000 N₂ / Air 10 6.0S –6 0.5
20 2.7–3.2 20 000 N₂ / Air 10 6.0S –8 0.5
10 2.3 6 000 O₂ 0.6 1.2E +8 0.8
12 2 7 500 O₂ 0.6 1.2E +9 0.8
14 1.8 8 500 O₂ 0.6 1.4E +10 0.8
16 1.7 9 500 O₂ 0.6 1.4E +11 0.8
18 1.6 12 000 O₂ 0.6 1.6E +12 0.8
20 1.5 12 000 O₂ 0.6 1.6E +12 0.8
22 1.4 20 000 O₂ 0.7 1.4SP +13 0.5
25 1.3 20 000 O₂ 1.0 1.5SP +13 0.4
30 1.2 20 000 O₂ 1.2 1.5SP +13.5 0.4
40 0.85 20 000 O₂ 1.4 1.5SP +14 0.4
50 0.4 20 000 O₂ 1.6 1.8E +13 2
60 0.25 20 000 O₂ 1.6 1.8E +13.5 2
70 0.2 20 000 O₂ 1.7 1.8E +13.5 2
80 0.15 20 000 O₂ 1.8 1.8E +14 2

Stainless steel (N₂)

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 70 20 000 N₂ 8 2.0S 0 1
2 45 20 000 N₂ 8 2.0S 0 0.5
3 38 20 000 N₂ 8 2.5S 0 0.5
4 32 20 000 N₂ 8 2.5S 0 0.5
5 25 20 000 N₂ 8 3.0S 0 0.5
6 22 20 000 N₂ 8 3.5B 0 0.5
8 17 20 000 N₂ 8 5.0B –1 0.5
10 14 20 000 N₂ 8 5.0B –1.5 0.3
12 11 20 000 N₂ 8 6.0B –2 0.5
14 7 20 000 N₂ 8 6.0B –4 0.3
16 5.8 20 000 N₂ 8 6.0B –5 0.3
18 4 20 000 N₂ 8 6.0B –6 0.3
20 3 20 000 N₂ 12 6.0B –7.5 0.3
25 1.6 20 000 N₂ 12 7.0B –12 0.3
30 1.1 20 000 N₂ 12 7.0B –16 0.3
40 0.5 20 000 N₂ 16 7.0B –16 0.3
50 0.2 20 000 N₂ 16 8.0B +11 0.3
60 0.15 20 000 N₂ 20 8.0B +11 0.3
70 0.12 20 000 N₂ 20 8.0B +11 0.3
80 0.10 20 000 N₂ 20 8.0B +11 0.3
90 0.08 20 000 N₂ 20 8.0B +11 0.3
100 0.05 20 000 N₂ 20 8.0B +11 0.3

Stainless steel (Air)

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 70 20 000 Air 8 2.0S 0 1
2 45 20 000 Air 8 2.5S 0 0.5
3 38 20 000 Air 8 2.5S 0 0.5
4 35 20 000 Air 8 3.5B 0 0.5
5 25 20 000 Air 8 3.5B 0 0.5
6 22 20 000 Air 8 3.5B 0 0.5
8 17 20 000 Air 10 3.5B 0 0.5
10 13 20 000 Air 10 3.5B –1.5 0.3
12 11 20 000 Air 10 5.0B –4 0.3
14 7 20 000 Air 10 5.0B –6 0.3
16 5.8 20 000 Air 10 5.0B –7 0.3
18 4 20 000 Air 10 5.0B –8 0.3
20 3.2 20 000 Air 10 5.0B –9 0.3
25 1.7 20 000 Air 10 5.0B –13 0.3
30 1.1 20 000 Air 10 5.0B –17 0.3
40 0.5 20 000 Air 16 7.0B –16 0.3
50 0.2 20 000 Air 16 8.0B +11 0.3
60 0.15 20 000 Air 20 8.0B +11 0.3
70 0.12 20 000 Air 20 8.0B +11 0.3

Aluminum alloy

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 65 20 000 N₂ 8 2.0S 0 0.8
2 55 20 000 N₂ 8 2.0S –1 0.5
3 45 20 000 N₂ 10 2.5S –1 0.5
4 40 20 000 N₂ 12 2.5S –2 0.5
5 30 20 000 N₂ 14 3.0S –3 0.5
6 20 20 000 N₂ 14 3.0S –3 0.5
8 13 20 000 N₂ 14 3.5S –4 0.5
10 8.5 20 000 N₂ 14 3.5S –5 0.5
12 8 20 000 N₂ 16 5.0B –6 0.3
14 4.5 20 000 N₂ 16 5.0B –7 0.3
16 4 20 000 N₂ 16 5.0B –7 0.3
18 3.5 20 000 N₂ 16 5.0B –7 0.3
20 2.3 20 000 N₂ 18 6.0B –7 0.3
25 1.5 20 000 N₂ 18 6.0B –7.5 0.3
30 0.8 20 000 N₂ 20 7.0B –7.5 0.3
40 0.6 20 000 N₂ 20 7.0B –9 0.3
50 0.4 20 000 N₂ 20 8.0B –9 0.3
60 0.2 20 000 N₂ 20 8.0B –9 0.3

Brass

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 55 20 000 N₂ 12 2.0S 0 1.0
2 42 20 000 N₂ 12 2.0S 0 0.5
3 34 20 000 N₂ 12 2.0S 0 0.5
4 30 20 000 N₂ 12 2.5S 0 0.5
5 21 20 000 N₂ 14 2.5S 0 0.5
6 15 20 000 N₂ 14 3.0S 0 0.5
8 9 20 000 N₂ 14 3.0S 0 0.5
10 6 20 000 N₂ 14 5.0B –1 0.3
12 4 20 000 N₂ 14 5.0B –2 0.3
14 3 20 000 N₂ 16 5.0B –3 0.3
16 2 20 000 N₂ 18 5.0B –3 0.3
18 1 20 000 N₂ 18 5.0B –4 0.3
20 0.7 20 000 N₂ 18 6.0B –5 0.3

Copper

Thickness, mm Speed, m/min Power, W Gas Pressure, bar Nozzle, mm Focus, mm Height, mm
1 40 20 000 O₂ 5 2.0S 0 1.0
2 30 20 000 O₂ 5 2.0S 0 0.5
3 28 20 000 O₂ 6 2.0S 0 0.5
4 20 20 000 O₂ 8 2.5S –1 0.5
5 15 20 000 O₂ 8 2.5S –1 0.5
6 10 20 000 O₂ 8 3.0S –2 0.5
8 6 20 000 O₂ 10 3.0S –3 0.5
10 3.5 20 000 O₂ 12 3.5S –4 0.5
12 2.5 20 000 O₂ 12 3.5S –5 0.5

Notes

  1. Thin carbon steel (1–2 mm): nitrogen or air cutting is faster than oxygen. Slight dross possible.
  2. High-speed oxygen cutting (8–20 kW): mirror cutting technology with double-layer nozzles (E, SP) and high feed rates. Results depend on gas purity and sheet quality.
  3. Copper: oxygen cutting only. Nitrogen and air are not suitable.
  4. Nozzle types: S — single, D — double, E — double-layer high-speed, B — wide (for thick stainless steel on N₂), SP — special double-layer.

Parameters are for reference only. For interactive recommendations and cut quality diagnostics, use the free Telegram bot SBM Laser Help.

FAQ

Q: What gas should I use for cutting carbon steel? A: Thin (1–2 mm): nitrogen or air — higher speed, slight dross possible. Medium and thick (3+ mm): oxygen — cleaner edge, stable cut. At 12–20 kW, nitrogen/air is effective up to 10–20 mm.

Q: How to choose nozzle diameter? A: Thin metal (1–3 mm): 1.5–2.0 mm (single S). Medium (4–10 mm): 2.5–4.0 mm. Thick (12+ mm): 4.0–7.0 mm. For high-speed oxygen cutting — double-layer nozzles (E, SP). For thick stainless steel on nitrogen — wide nozzles (B) 5.0–8.0 mm.

Q: What does focus position mean? A: 0 — focus on the surface. Minus (–) — focus inside the material (nitrogen cutting of stainless steel, aluminum). Plus (+) — focus above the surface (oxygen cutting of carbon steel). The thicker the metal, the deeper the offset.

Q: Are these exact parameters for my machine? A: These are reference recommendations. Actual parameters depend on metal quality, steel grade, gas purity, optics condition, and cutting head model. Use the tables as a starting point and adjust based on test cut results.

Q: Where can I get parameters interactively? A: In the free Telegram bot SBM Laser Help. Select material, thickness, power, and gas — the bot will provide full parameters. If the result is not satisfactory — upload a cut photo for diagnostics.

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