Bystronic ByCut Star 4020
Image: bystronic.com, Bystronic
Key Specifications
laser power
max stainless
max aluminum
acceleration
control
How much does the Bystronic ByCut Star 4020 cost?
Estimated price range
Our best estimate for a cnc laser cutting machine in this class — not a quote from Bystronic. Configuration moves it a long way.
Overview
The Bystronic ByCut Star 4020 is a fiber laser cutting machine offered with 6-15 kW of laser power and 2g of axis acceleration. Those two rows, two thickness limits and the control are what Bystronic's figures for this model confirm, so this page stays with them.
The thickness limits are stated at one power level. At 10 kW the maximum is 20 mm in stainless steel and 15 mm in aluminium. Nothing is listed for the 6 kW or 15 kW ends of the range, and nothing for mild steel, so a shop whose work sits near those limits should ask for cutting data at the power it intends to buy instead of reading across from the 10 kW rows.
Acceleration of 2g matters most on thin sheet with many short contours, where the head spends more time changing direction than running at full speed. On thick plate the cut itself sets the pace and the benefit shrinks. The control row reads ByVision / BySoft 7. Sheet size, positioning speed, table load and machine weight are not in the listed figures and need to be confirmed before planning floor space or material handling.
Full Specifications
| Parameter | Value |
|---|---|
| Laser Power | 6-15 kW fiber |
| Max Stainless | 20 mm (at 10 kW) |
| Max Aluminum | 15 mm (at 10 kW) |
| Acceleration | 2g |
| CNC Control | ByVision / BySoft 7 |
Specifications sourced from bystronic.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Laser power of 6-15 kW fiber, so the source can be matched to the thickness range a shop actually cuts
- Rated to cut 20 mm stainless steel and 15 mm aluminium at 10 kW
- 2g acceleration shortens the time lost in direction changes on thin-sheet parts with many small contours
- Runs under Bystronic's ByVision control, with BySoft 7 listed alongside it
Limitations
- Thickness limits are published at 10 kW only; the limits at 6 kW and at 15 kW are not listed
- No mild steel thickness appears in the listed figures
- Sheet size, table load and positioning speed are not stated and must be confirmed with Bystronic
Best For
Frequently Asked Questions
01
Bystronic lists 6-15 kW fiber. The published thickness figures are given for 10 kW only, so the choice between the lower and upper end of the range should be made on cutting data for your own materials, not on the two thickness rows shown here.
02
At 10 kW the listed maximum is 20 mm in stainless steel and 15 mm in aluminium. No figure is listed for mild steel, and none for 6 kW or 15 kW, so those have to come from Bystronic for the configuration you are considering.
03
The control row reads ByVision / BySoft 7. No further control or software functions are listed for this model, so anything beyond those two names should be confirmed against the quoted configuration.
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