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Acmer · Diode
Acmer S2 Pro · 48W
Top Acmer S2 Pro: 48W compressed diode with bundle options
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Last updated How we evaluate
Released August 2024
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Showing specs for: 48W
TL;DR
Acmer S2 Pro 48W is Acmer's high-power open-frame option before the enclosed P3. Strong cutting claims: verify optical power and compare to P3 48W enclosed if you need smoke control.
Compare the Acmer S2 Pro 48W 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.
Top cutting tier of the S2 Pro
Basswood up to 10 mm and dark acrylic up to 5 mm in our profile, with the shortest cut times of the line (~6–10 min for our 3 mm test square).
Integrated 30 L/min air assist
The built-in pump clears smoke at the cut, which matters more at 48W where charring rises quickly.
Our verdict
Ideal if you
Acmer S2 Pro 48W targets mixed engraving and wood-cutting weeks: fewer passes on basswood and dark acrylic than weaker SKUs in the same line.
Skip if you
Wrong pick if you never engrave and only wanted the lowest price. Ultra-fine photo work can look better on an engraving-first SKU. Open-frame: safety and smoke are on you.
Pros
- Widest cut range of the S2 Pro line in our profile: basswood up to 10 mm and dark acrylic up to 5 mm
- Fastest fills of the line: ~12–18 min for our 10 × 10 cm photo test
- Built-in 30 L/min air pump, so the extra power translates into cleaner cuts without add-ons
Cons
- $759.99 for the basic pack vs $582 for the 36W, and up to $1,404.99 for the All in One pack (October 2026)
- Same 0.08 × 0.1 mm spot spec as the 36W: no gain in detail, and more smoke at full power
- Open frame: if smoke control matters, compare Acmer's enclosed P3 before buying
What this machine is for
Maximum cut speed and depth in the line: engraving remains strong at tuned speeds
48W module · Acmer S2 Pro
Laser spot size
~0.08 mm spot
Motion precision: 0.01 mm
Sample engrave job
~12–18 min
10 × 10 cm (4 × 4 in)
Sample cut job
~6–10 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
- · Acrylic
- · Anodized aluminum (with IR pack)
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 48W SKU on Acmer S2 Pro. Read the TL;DR and benchmarks above, then compare other power options via the chips before buying.
Pro tips
The 48W head is for cut-heavy weeks: air assist, exhaust, and multi-pass squares on your plywood before you raise customer prices. Dial engraving speeds down when photo quality beats throughput.
Pro / technical specsRaw numbers for experienced users comparing machines.
- Max speed (spec)
- 300 mm/s
- Avg engrave speed
- 60–150 mm/s fill
- Avg cut speed
- 4–10 mm/s on 3 mm wood
Common questions
Is the S2 Pro 48W worth $178 more than the 36W?
If cutting is a weekly task, generally yes. In our benchmarks it cuts a 10 × 10 cm square in 3 mm basswood in ~6–10 min (vs ~7–12 min) and fills a photo in ~12–18 min (vs ~14–22 min). Acmer's basic packs were $759.99 and $582 in October 2026. For engraving only, the 36W gives the same detail for less.
What thickness should I expect to cut with the 48W?
Acmer gives no official cutting chart for the S2 Pro. Our profile lists basswood up to 10 mm and opaque dark acrylic up to 5 mm, with several passes at the top of those ranges; clear acrylic is not possible with a blue diode.
Does more power mean a coarser engraving?
Not on paper: Acmer specifies the same 0.08 × 0.1 mm spot for both S2 Pro versions. In practice you will run lower power percentages on the 48W for photos, and smoke and charring rise at full power, so air assist (built in) and an exhaust matter more.
Alternatives to the Acmer S2 Pro 48W
Machines in the same space, picked from our database by type, price, and score.
Acmer · Diode · $1,149 – $2,069
The P3 48W is the cutting version of Acmer's enclosed P3: a Class 1 cabinet with a CoreXY gantry, 800 mm/s, a camera covering the whole bed and 30 L/min air assist. Its module switches between 24W and 48W, and Acmer rates it for 18 mm plywood and 18 mm black acrylic in one pass. At $1,149 for the Basic Pack (October 2026) it undercuts xTool's enclosed 40W by about $550; the trade-offs are a weaker included exhaust fan and software that reviewers call basic.
Acmer · Diode · $609 – $1,320
Acmer P2 33W is the high-power open-frame Acmer before the enclosed P3. Verify real optical output vs marketing: capable cutter for the price when tuned properly.
Longer · Diode · $699 – $949
Longer Laser B1 40W is the 40W 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.