LONGER Laser B1 20 W Large Laser Engraver & Cutter

A 20 W-class engraver and cutter with a six-core diode laser. It moves across a wide 450 × 440 mm area at up to 36,000 mm/min and cuts 15 mm pine and 8 mm black acrylic in one pass. The air pump switches on and off by itself from your LightBurn settings.

~~$488.42~~

8%$449.35

Price with code · Geekbuying · as of 2026-10-09

Code CONSUM50 · 8% off

max $50 · until 2027-05-31

Copy code & shop Geekbuying

~~$488.42~~8%$449.35Copy code & shop Geekbuying

The aluminium frame with the air pump attached

115 mm pine in one pass

One pass cuts 15 mm pine, 8 mm black acrylic or 0.1 mm stainless steel, and multiple passes go through 20 mm basswood and 35 mm black acrylic. Focus is fixed at 50 mm and set with a pull-down bar.

2Self-switching air pump

The main board switches the included air pump on and off from LightBurn settings, blowing smoke away and reducing scorching. Cut edges come out cleaner and cutting gets stronger.

3A3 sheets, eight safeguards

The 450 × 440 mm area fits A3 panels with room to spare. Tilt, flame, disconnection and stall detection, a security key, emergency stop, auto homing and filter glass that blocks 99.8% of the laser guard against accidents.

Key specs

Laser: 20 W-class diode · 450–460 nm
Working area: 450 × 440 mm
Top speed: 36,000 mm/min
Power input: 110–240 V AC · 120 W
Weight: 8.6 kg
Ships from: EU warehouse

Good pick if

You often cut thick wood or acrylic
You make large pieces on A3 sheets

Think twice if

You have no room for a 727 × 668 mm frame
You don’t want to assemble the frame yourself

FAQ

Is there a promo code?

Yes. Enter CONSUM50 at Geekbuying checkout when buying the LONGER Laser B1 20 W Large Laser Engraver & Cutter for 8% off. Conditions: max $50 · until 2027-05-31.

Which software does it use?

LaserGRBL and LightBurn on Windows, macOS and Linux. Files go over Wi-Fi, USB, the app or a TF card, so it can work without a computer.

What’s in the box?

Five frame parts, the laser module, an air pump with valve and tubes, safety glasses, a limit switch, USB and power cables, timing belts, three plywood sheets, an SD card with reader, tools, screws and a manual. You assemble it yourself.