4 manufacturer photos · 1 / 4
Longer · Diode
Longer Laser B1
20W Longer's large-format diode — bigger bed than Ray5 for sign-sized projects
Last updated How we evaluate
Released February 2023
Choose a power option
Details below update for the selected power option.
Showing specs for: 20W
TL;DR
Longer Laser B1 20W is the 20W SKU on the Longer longer laser b1 line. Longer's large-format B1 20W diode — this profile is the 20W SKU only; Longer also sells 30W and 40W B1 machines separately. Verify optical power on the listing — do not assume combined-watt marketing.
What this machine is for
Large-format diode engraving and thin-to-medium wood cutting for hobbyists and light sellers.
Best for
Materials
Engraves
- · Wood
- · Leather
- · Slate
- · Anodized aluminum
Cuts
- · Basswood (up to 8 mm)
- · Dark acrylic (up to 5 mm)
- · Paper
- · Fabric
Cannot do
- · Clear acrylic
- · Bare metal
- · CO₂ acrylic production
- · Enclosed safety without add-on cover
Pros
- ✓Large work area for the price
- ✓40W option competitive with Atomstack A40
- ✓LightBurn support
- ✓Wi-Fi included on many configs
- ✓Extension kits for even larger jobs
Cons
- ✗Open frame — not family-safe without enclosure
- ✗Longer support community smaller than Ortur
- ✗Build quality varies vs premium brands
- ✗Air assist often sold separately
- ✗40W claims need real-world verification
Beginner notes
Choose 20W if it matches your typical jobs. Compare cut depth and price against other tiers in this product line before ordering.
Pro tips
The B1's value is bed size — design templates to use the full width for batch engraving. Add honeycomb and air assist before pushing 8 mm+ cuts.
Pro / technical specs
Raw numbers for experienced users comparing machines.
- Laser spot size
- ~0.07 mm spot
- Max speed (spec)
- 400 mm/s
- Avg engrave speed
- 14–32 mm/s fill
- Avg cut speed
- 2–3 mm/s on 3–8 mm wood
- Motion precision
- 0.01 mm