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Algolaser · Diode
Algolaser Alpha MK2 · 20W
20W Premium open-frame diode focused on speed and fine engraving detail
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Last updated How we evaluate
Released March 2024
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Showing specs for: 20W
TL;DR
Algolaser Alpha MK2 20W is the 20W SKU on the Algolaser algolaser alpha mk2 line. Algolaser targets makers who want faster engraving and tighter spot control than typical budget diodes. Verify optical power on the listing: do not assume combined-watt marketing.
Compare the Algolaser Alpha MK2 20W to…
Popular side-by-side matchups with full specs, scores, and an honest verdict.
Best for
What makes this machine stand out
Hardware and workflow features worth understanding before you buy : not just wattage on a label.
12 mm plywood in one pass
Algolaser's own settings cut 10–12 mm basswood plywood in a single pass at 100 mm/min with the 20W module.
Fine at low power
Algolaser specifies a 0.06 × 0.05 mm spot at 3% power, which keeps light photo engraving detailed while full power handles cutting.
Balanced price
$579 machine-only in October 2026, about $420 less than the 40W for the same software and accessories ecosystem.
Our verdict
Ideal if you
Algolaser Alpha MK2 20W is the versatile hobby / side-business SKU: clean engraving and light wood or leather cuts with comparable benchmarks on Maker Atlas.
Skip if you
Open-frame: glasses and exhaust required. Upgrade path to 40W if cutting takes over. Not a CO₂ replacement for clear acrylic or heavy thick-stock production.
Pros
- Algolaser's settings cut 8 mm basswood plywood at 200 mm/min and 12 mm at 100 mm/min, each in one pass
- Black acrylic up to 8 mm in one pass (100 mm/min)
- Most affordable Alpha MK2: $579 machine-only, $729 in the basic kit (October 2026)
Cons
- Spot widens to 0.16 × 0.14 mm at full power (0.06 × 0.05 mm at 3%): cutting and fine engraving need different focus habits
- 13–15 mm plywood drops to 2 passes, where the 40W stays at one: compare both if thick stock is planned
- Open frame: fumes and eye safety are on you unless you add Algolaser's smart enclosure ($929 bundle)
What this machine is for
Everyday engraving plus reliable light cutting on wood, leather, and dark acrylic
20W module · Algolaser Alpha MK2
Laser spot size
~0.06 mm spot
Motion precision: 0.01 mm
Sample engrave job
~9–14 min
10 × 10 cm (4 × 4 in)
Sample cut job
~5–9 min
10 × 10 cm (4 × 4 in)
Reference benchmark: same job size on every machine so you can compare times fairly. Times are estimates for the reference job above; your design complexity and settings will change them.
Materials
- · Wood
- · Leather
- · Slate
- · Anodized aluminum
- · Stainless (with spray)
Accessories & add-ons
Typical inclusions and add-ons for this profile : confirm your SKU.
- Optional
Enclosure / cabinet
Third-party enclosure improves smoke control and safety
- Recommended
Laser safety glasses
~450 nm diode: OD rated for your wavelength
- Recommended
Fire extinguisher
Editorial guidance : not a live parts list. See also: Ventilation setup · Safety basics
Practical notes
Beginner notes
This profile is the 20W SKU on Algolaser Alpha MK2. Read the TL;DR and benchmarks above, then compare other power options via the chips before buying.
Pro tips
Use air assist for cuts, lower scan speed for photo engraving. Multiple passes at moderate speed beat one aggressive pass. Check the flagship tier’s cut benchmark if you quote production times to customers.
Pro / technical specsRaw numbers for experienced users comparing machines.
- Max speed (spec)
- 400 mm/s
- Avg engrave speed
- 16–36 mm/s fill
- Avg cut speed
- 2–3 mm/s on 3–6 mm wood
Common questions
How thick can the Alpha MK2 20W cut in one pass?
Algolaser's material settings list basswood plywood at 700 mm/min (3 mm), 300 mm/min (5–6 mm), 200 mm/min (8 mm) and 100 mm/min (10–12 mm), all in one pass at 100% power; 13–15 mm take 2 passes. Black acrylic: 5–8 mm in one pass at 100 mm/min, 10 mm in 2 passes.
How much does the Alpha MK2 20W cost compared with the 40W?
On Algolaser's store in October 2026: $579 machine-only, $729 basic kit, $809 pro kit and $919 safe kit for the 20W, against $999 machine-only and $1,149 basic kit for the 40W. That is about a $420 gap at the machine-only level. The 20W smart enclosed bundle was $929.
20W or 40W: which suits a side business?
The 20W covers most side businesses that cut up to 8–12 mm plywood and engrave every day. The 40W earns its extra $420 mainly on throughput: 3 mm plywood at 750 vs 700 mm/min is close, but 8 mm runs at 350 vs 200 mm/min and 15 mm stays single-pass. Pick the 40W if long cutting jobs fill your week.
Alternatives to the Algolaser Alpha MK2 20W
Machines in the same space, picked from our database by type, price, and score.
xTool · Diode · $699 – $899
The 20W D1 Pro module is xTool's most popular open-frame head: mixed engraving and light cutting on the large D1 bed. Verify optical power on the listing; swap to 40W later if cut jobs dominate.
Sculpfun · Diode · $690
The 22W is the middle of Sculpfun's three S30 Ultra heads (11W, 22W, 33W), often sold bundled with LightBurn. The 33W head goes further for thick cuts. Listings that say S30 Ultra 10W or 20W are reseller labels.
xTool · Diode · $1,299 – $2,599
The 20W S1 is the value pick in xTool's enclosed diode line: same cabinet and filters as the 40W, but less cut depth on thick wood. Buy this if safety matters and you mostly engrave.