Quick Answer: The best Acmer laser engraver for most buyers in 2026 is the Acmer P2 33W at $589 (Basic Pack, acmerlaser.com, November 4, 2026): it costs only $50 more than the P2 20W, has a 420 x 400 mm bed and automatic 30 L/min air assist, and Hobby Laser Cutters measured a P2 at 31W of optical output against its 33W claim. If you want an enclosed, Class 1 machine for indoor use, buy the P3 24W ($999) or P3 48W ($1,199); for bare metal plus wood in one box, the P3 2IN1 (10W diode + 2W infrared) is $1,099. Beginners can start with the S1 portable from $109 or the S2 4W from $139. One warning: Acmer runs duplicate product pages, and on November 4 the same S2 7W cost $179.99 on one and $279.99 on the other.
Last updated: November 4, 2026. Every price below was read from Acmer’s US store (acmerlaser.com) that day, during an Acmer Black Friday promotion; compare-at prices are Acmer’s own and are not a guide to real value.
Acmer is the budget-to-midrange diode brand that most buyers meet second, after xTool or Sculpfun, usually through a P2 or P3 listing. It sells seven diode lines at once, from a 1.5 kg portable to an enclosed 48W cutter, plus fiber markers and CNC routers, and the names do not make the lineup obvious. This guide sorts it out using four things you can check yourself: Acmer’s own spec tables and FAQs, its live store prices, published third-party reviews, and the one independent power measurement of an Acmer machine we could find. We did not test these machines ourselves, and most of the reviewers we cite received their units from Acmer. Acmer’s own store reviews are collected by invitation and some earn a reward toward a future purchase, so read its 4.7 to 4.9 star averages with that in mind.
Acmer by the numbers
- Hobby Laser Cutters measured 31W of optical output from an Acmer P2 33W in a 2023 four-way comparison, against almost 34W for the Sculpfun S30 Ultra and 29W each for the Atomstack Maker A30 Pro and Longer B1. In the same test the P2 needed the most passes on 18 mm spruce (10, against 6, 8 and 9), and the reviewer listed weak air assist among its faults; that unit was pre-production.**
- Acmer’s P3 48W is rated for 18 mm of plywood and 18 mm of black acrylic in one pass, per the comparison table on Acmer’s own P3 page. The same page headlines “up to cut 45mm dark acrylic” and lists 30 mm plywood as the maximum, which are multi-pass figures.
- The laser module is warrantied for half as long as the machine. Acmer’s warranty page covers the machine for 12 months excluding the laser module, and the laser module for 6 months excluding lenses, behind a store badge that reads “1 Year Warranty”. A return costs 10% of the price unopened and 20% opened.
- Any laser above 500 mW is Class 4 under the ANSI-based classes used in US laser safety programs such as Bowdoin College’s. Acmer’s open-frame machines run 2.5W to 48W, which is 5 to 96 times that line, so goggles are not optional on the S1, S2, P1 S Pro, S2 Pro or P2.
Acmer laser engravers at a glance
| Model | Type | Laser power | Work area (Acmer) | Enclosed? | Price, Basic (acmerlaser.com, Nov 4, 2026) |
|---|---|---|---|---|---|
| Acmer S1 | Portable open-frame diode | 2.5W / 3.5W / 6W | 130 x 130 mm | No ($59 mini enclosure box) | $109 / $129 / $169 |
| Acmer K1 | Portable enclosed diode | 3.5W / 7W / 12W (2.5W sold out) | 150 x 150 mm | Yes, Class 1 per Acmer | $199.99 / $229.99 / $269.99 |
| Acmer S2 | Open-frame diode | 4W / 7W / 12W / 20W | 300 x 300 mm | No | $139 / $179.99 / $216 / $324 |
| Acmer P1 S Pro | Open-frame diode | 6W / 10W / 20W / 36W / 48W | 380 x 370 mm (20W: 380 x 350) | No ($207 more for the Enclosure Pack) | $199 / $229 / $329 / $599 / $799 |
| Acmer S2 Pro | Open-frame diode, built-in 30 L air pump | 36W / 48W | 400 x 400 mm | No | $549 / $699 |
| Acmer P2 | Open-frame diode, automatic air assist | 10W / 20W / 33W | 420 x 400 mm | No | $379 / $539 / $589 |
| Acmer P3 | Enclosed diode / IR, CoreXY | 24W / 48W / 2IN1 (10W + 2W IR) / 2W IR | 400 x 400 mm (48W and 2IN1: 400 x 390) | Yes, "FDA Class 1" per Acmer | $999 / $1,199 / $1,099 / $799 |
| Acmer GE1 | Galvo, dual laser | 10W diode + 2W IR | 105 x 105 mm (105 x 370 with $179 slide) | No | $899 |
The table leaves out Acmer’s fiber markers (PM integrated from $1,599 for 30W, SM split from $1,799), its CNC routers, and the XMetal fiber welder, which was sold out on November 4. Make: reviewed the SM 60W MOPA ($6,299 as tested) and recommended it only for well-ventilated industrial shops because “there’s no enclosure, nor does Acmer offer one” for it; Acmer now sells a $479 OD6+ safety enclosure for the PM and AM. Hackster found the AM 60W MOPA “works as well as all of the other 60W MOPA fiber lasers”, and later noted Acmer is phasing the AM out for the PM.
The best Acmer laser engravers
1. Acmer P2 33W — best Acmer for most buyers
- 33W diode, 0.08 x 0.1 mm spot, 420 x 400 mm area, 500 mm/s top speed, per Acmer's spec table.
- Acmer rates it for up to 30 mm plywood, 25 mm black acrylic and 8 mm MDF (maximum, passes not stated).
- Hobby Laser Cutters metered 31W optical on a 33W claim (2023, pre-production unit); 3DWithUs rated it 4.4/5.
- Only $50 more than the P2 20W ($539); the 33W module alone is $499, so buying the 20W and upgrading later costs $1,038.
The P2 33W is the Acmer to buy if you want one open-frame machine for cutting and engraving wood, leather and dark acrylic. The pricing makes the decision easy: the 33W Basic Pack is $589 and the 20W is $539, so the extra 13 watts cost $50, while the 33W module bought separately is $499. Independent reviews broadly back it. Hobby Laser Cutters measured 31W, the second-highest reading in its four-way test, and praised the smallest laser spot of the group (0.15 x 0.15 mm), linear rails on all axes, the fastest acceleration and the deepest engraving contrast, but its pre-production P2 needed 10 passes through 18 mm spruce where the Sculpfun S30 Ultra needed 6. 3DWithUs rated the P2 33W 4.4/5 after cutting 3 mm black acrylic in one pass at 200 mm/min and 7 mm plywood at 250 mm/min; Make:’s Caleb Kraft needed 3 to 4 passes for a clean cut through 1/4-inch wood; and The Gadgeteer cut 6 mm plywood in one pass but warns that its unit shipped set to mm/s while Acmer’s documents used mm/min. It is still an open-frame Class 4 laser: budget for $20 laser glasses at minimum, an enclosure or exhaust, and a fireproof base. The Camera Pack ($703) adds Acmer’s camera for positioning and the Enclosure Pack ($737) adds an enclosure. The newer S2 Pro 36W is $40 cheaper at $549 with a 400 x 400 mm bed and a built-in 30 L air pump, but we found no independent review of it, which is why the P2 gets the pick.
2. Acmer P3 48W / 24W — best enclosed Acmer
- Fully enclosed, listed by Acmer as "FDA Class 1", with integrated smoke exhaust, camera and 30 L air pump.
- CoreXY gantry rated to 800 mm/s; 400 x 400 mm (24W) or 400 x 390 mm (48W) area; conveyor extends length to 4,000 mm.
- One-pass cutting per Acmer's table: 48W 18 mm plywood / 18 mm black acrylic; 24W 12 mm / 8 mm.
- Swappable modules: the 48W module also fits the P2, but P2 modules do not fit the P3.
The P3 is the one Acmer you can put in a spare room. Acmer sells it as a pre-assembled, enclosed Class 1 machine with a camera and an exhaust port, which is the difference between needing goggles and a dedicated space and not needing them. The 48W costs $200 more than the 24W and roughly doubles one-pass cutting on Acmer’s own figures (18 mm against 12 mm plywood). 3DWithUs rated the P3 24W 4.6/5 and cut 3 mm basswood at 600 mm/min, noting that LightBurn needs a USB connection for the whole job. Creative Bloq gave the P3 with the 48W module 4.5/5 but found the camera calibration complex and said a smell remained even with Acmer’s AP220 purifier. One owner review on Acmer’s own P3 48W page reports building a shroud and adding an inline fan because smoke leaked from the enclosure, so plan for real ducting to a window rather than relying on the built-in exhaust alone. Compare it with the enclosed machines in our best enclosed laser engraver guide before you commit.
3. Acmer P3 2IN1 — best Acmer for metal and wood
- 10W blue diode for wood, leather and dark acrylic plus a 2W 1064 nm infrared laser for bare metal and some plastics.
- Acmer rates the 2IN1 at 10 mm plywood, 8 mm black acrylic and 3 mm MDF maximum; the IR module does not cut.
- Same enclosure, camera and 4,000 mm conveyor option as the other P3 versions.
- The 2W IR-only P3 has no air pump and its bundles beyond the Basic Pack were sold out.
If you engrave tumblers, dog tags, knives or anodized and bare stainless, the 2IN1 is the version to buy, because a blue diode only darkens or marks coated metal while the 1064 nm infrared laser marks bare metal. The trade-off is cutting power: the diode half is 10W, so it cuts a third of what the 48W does. If you already own the 48W P3, Acmer sells the 2W IR module separately for $429 (listed as pre-order on November 4), and the 10W + 2W IR dual module for $559. TechRadar rated the P3 IR & Diode 4.5/5 and named it the best 2-in-1 in its laser engraver guide, but reported light leaking from the side vents, a camera overlay that sat about 1 cm out until a roughly 10-minute recalibration, and a diode it called “slightly underpowered”. techreviewer.de scored the 2IN1 8.3/10 and warns that the P3 does not save the head’s last position, so a job started without homing can drive the head into the frame. For heavier metal work, a fiber laser is the better tool; see best fiber laser engraver.
4. Acmer S1 — best cheap portable Acmer
- 1.5 kg, 250 x 250 x 162 mm, with a 130 x 130 mm (5.1 x 5.1 in) area and 10,000 mm/min top speed.
- Spot size 0.02 mm (2.5W), 0.03 mm (3.5W) or 0.04 mm (6W) per Acmer's table: fine detail, slow cutting.
- Acmer rates the 6W at up to 10 mm plywood and 6 mm black acrylic, the 2.5W at 5 mm and 3 mm.
- 4.74 out of 5 from 23 reviews on Acmer's store; a $59 mini enclosure box is sold separately.
The S1 is the Acmer most people search for by name, and it is honest about what it is: a small, light engraver for wooden coasters, leather patches, slate and keyrings on a desk or at a craft fair. Buy the 6W, because it costs $40 more than the 3.5W and doubles the cutting figures. FirstQuadcopter rated the S1 6W 4.1/5, with 3.5/5 for build quality, and its laptop connection dropped about 30% of the way into a job. The bed is the limit: at 130 x 130 mm it will not fit a cutting board, and the open frame still needs goggles and ventilation. If portability matters more than size, our best portable laser engraver guide compares it with the alternatives.
5. Acmer K1 — best enclosed Acmer under $300
- Enclosed, Class 1 per Acmer, 2.4 kg, 286 x 273 x 190 mm, with a 150 x 150 mm area.
- 10,000 mm/min top speed; works with ACMER Studio, LightBurn and LaserGRBL.
- The 12W is $40 more than the 7W; the 2.5W was sold out.
- 4.86 out of 5 from 7 reviews on Acmer's store, a small sample.
The K1 is the S1 idea with a lid: a small enclosed engraver for a kitchen table, dorm or classroom. Hoffman Engineering’s review of a K1 7W (supplied by Acmer, then $299) measured a 0.06 mm kerf against the 0.08 mm Acmer advertises, cut 3 mm birch plywood at 200 mm/min and recorded 59 to 61 dB, but its unit had a factory Y-axis waviness defect and the reviewer found ACMER Tool’s toolpaths inefficient. One owner review on Acmer’s own page warns that the built-in exhaust was not enough for an attached-garage setup without an air purifier, so plan for ventilation even with the lid.
6. Acmer P1 S Pro and S2 — best big-bed Acmer on a budget
- P1 S Pro: 380 x 370 mm area, 6W to 48W modules, 20W rated for up to 25 mm plywood and 20 mm black acrylic.
- S2: 300 x 300 mm area, 4W to 20W, 0.06 mm spot, 490 x 500 x 195 mm frame.
- P1 S Pro 20W and S2 20W include a free air pump; on the P1 S Pro, Camera, Rotary and Enclosure packs add $114, $128 and $207.
- Both have a second, more expensive product page; see the duplicate-listing table below.
If the S1’s bed is too small but the P2’s price is too high, these are the open-frame middle. The P1 S Pro 20W at $329 is the better value of the two, with a 380 x 350 mm bed and a free air pump. 3DWithUs rated the smallest P1 S Pro 6W 4.2/5 and cut 2 mm board in one pass, but listed the lack of air assist and of an enclosure as its main drawbacks; the 20W adds the air pump but is still open-frame. The S2 4W at $139 is the cheapest way into a 300 x 300 mm Acmer bed, but at 4W it is an engraver that can cut thin stock, not a cutter.
7. Acmer GE1 — fastest Acmer for small metal and mixed engraving
- Galvo scanner with a 10W blue diode and a 2W infrared laser in one head, rated up to 5,000 mm/s.
- 105 x 105 mm area, or 105 x 370 mm with the $179 slide extension; autofocus Z-axis takes parts up to 110 mm tall.
- Acmer rates the diode at up to 8 mm basswood and 6 mm black acrylic; the IR laser marks metal and does not cut it.
- Listed in late August 2026; no customer reviews on Acmer's store on November 4.
The GE1 is a different kind of machine: a galvo, which steers the beam with mirrors instead of moving the head on a gantry, so it engraves small items far faster than any of the gantry Acmers. That makes it suited to batches of keychains, pens, lighters and jewelry blanks rather than signs. We found no independent review of the GE1 yet, so its 5,000 mm/s speed and Acmer’s claim that it runs “up to 3.5x faster than comparable models” are the maker’s own figures. With no store reviews yet and a 105 mm square field, treat it as a production tool for small parts, not a first laser.
The duplicate-listing trap on Acmer’s store
Acmer keeps more than one live product page for some machines, and the second page can charge far more for the same spec. These are the gaps we found on acmerlaser.com on November 4, 2026:
| Machine | Main product page | Second product page | Difference |
|---|---|---|---|
| S2 4W | $139 ("ACMER S2 Laser Engraver", Basic Pack) | $229.99 ("ACMER S2 4/7/12W Laser Engraver") | $90.99 |
| S2 7W | $179.99 | $279.99 | $100 |
| S2 12W | $216 | $329.99 | $113.99 |
| P1 S Pro 6W | $199 ("ACMER P1 S pro Best Budget Laser Engraver", Basic Pack) | $259.99 ("ACMER P1 S pro 6/10W Laser Engraver") | $60.99 |
| P1 S Pro 10W | $229 | $432.67, with a compare-at price of $279 | $203.67 |
Both S2 pages list the same 300 x 300 mm area, 0.06 mm spot and 490 x 500 x 195 mm frame, and both P1 S Pro pages list the same 380 x 370 mm area and 0.06 x 0.08 mm spot. The second pages have no customer reviews and a simpler layout, which suggests they serve ads or marketplace links. Whatever the reason, the fix is simple: search acmerlaser.com for your model and buy from the page with the reviews and the package options. Sculpfun has the same habit, which we covered in our best Sculpfun laser engraver guide.
Read the one-pass row, not the headline
Acmer publishes two kinds of cutting figures, and they are easy to mix up. The headline numbers are maximum thickness with as many passes as it takes; the one-pass numbers are what a single run cuts. The P3 page shows both:
| Acmer P3 module | Maximum plywood | Maximum black acrylic | One-pass plywood | One-pass black acrylic |
|---|---|---|---|---|
| 48W | 30 mm | 45 mm | 18 mm | 18 mm |
| 24W | 25 mm | 20 mm | 12 mm | 8 mm |
| 2IN1 (10W diode) | 10 mm | 8 mm | Not published | Not published |
For the S1, S2, P1 S Pro and P2, Acmer only publishes the “maximum thickness of cutting” row, without a pass count. Treat those as multi-pass ceilings: the P2 33W’s “30 mm plywood” belongs in the same column as the P3 48W’s 30 mm, not its 18 mm. When you compare an Acmer with an xTool or Sculpfun, compare one-pass figures with one-pass figures. Our diode vs CO2 laser guide explains why diodes need several passes on thick stock in the first place.
Warranty, returns and the price-protection promise
| Term | What Acmer states | Source |
|---|---|---|
| Warranty badge | "1 Year Warranty" on every machine page | Acmer product pages |
| Machine structure | 12 months | Acmer P2 FAQ |
| Laser module | 6 months | Acmer P2 FAQ |
| Belts and other consumables | 3 months | Acmer P2 FAQ |
| Returns | 30 days from delivery (the site header advertises "60-Day Returns") | Acmer product pages and refund policy |
| Shipping | Free shipping and tax in the US and EU; US orders ship from a US warehouse; no shipping to Alaska, Hawaii or Puerto Rico | Acmer product pages, shipping policy and FAQ |
| Price protection | 60 days: refund of the difference if the price drops on the official store, same model and configuration | Acmer product pages (Black Friday 2026) |
| Warranty fine print | Machine 12 months on PCB, motor and guide rail, excluding the laser module; laser module 6 months, excluding lenses; accessories 6 months; power cable and lenses 3 months; gradual laser power loss is "normal" | acmerlaser.com warranty page |
| Fiber and MOPA machines | 24 months on main components, 12 months on the laser module | acmerlaser.com warranty page |
| Defects found in the first 7 days | Free replacement if Acmer confirms a manufacturing defect, fault or missing part | acmerlaser.com warranty page |
| Return fees (US) | 10% unopened, 20% opened or used; buyer pays return shipping; a machine must have been fired fewer than 50 times; refurbished units cannot be returned | acmerlaser.com refund policy |
The laser module is the part most likely to fail and the most expensive to replace (the P2 33W module is $499 on its own), so the 6-month module term matters more than the 1-year badge. Keep your order number: Acmer’s FAQ ties warranty claims to purchases from the official store with an order number. Returns are not free either: Acmer charges 10% of the price on an unopened machine and 20% on an opened one, plus return shipping, and only accepts machines fired fewer than 50 times, so test the laser in the first week, when Acmer offers a free replacement for defects. We found no Acmer recall in the CPSC or openFDA recall databases on November 4, 2026. The 60-day price protection is useful in a Black Friday month, but by its own wording it covers the same model and configuration on the official store, so do not count on it to refund the gap between two different product pages.
Which Acmer should you buy?
| If you want... | Buy | Price (Nov 4, 2026) |
|---|---|---|
| One machine to cut and engrave wood, leather, dark acrylic | P2 33W Basic Pack | $589 |
| An enclosed laser for a room in the house | P3 24W or P3 48W | $999 / $1,199 |
| Bare metal plus wood, enclosed | P3 2IN1 | $1,099 |
| Fast small-parts and metal engraving | GE1 | $899 |
| A cheap first laser that fits in a drawer | S1 6W | $169 |
| A small enclosed laser under $300 | K1 12W | $269.99 |
| A big bed for under $350 | P1 S Pro 20W | $329 |
| Production metal marking | PM 30W fiber | $1,599 |
If none of these fits, compare Acmer against the rest of the category in our best laser engraver roundup, the best diode laser engraver list, or, if this is your first machine, the best laser engraver for beginners.
What to budget beyond the machine
- Eye protection for every open-frame Acmer. Acmer sells laser glasses for $20; match the rating to the wavelength (455 nm blue diode, 1064 nm infrared). See best laser safety glasses.
- Ventilation. Every diode laser makes smoke. Acmer’s AP220 purifier is $249 and the AP360 $359; a window duct is cheaper. Owner reviews on both the P3 and K1 pages say the built-in exhaust was not enough on its own. See best laser engraver fume extractor.
- Air assist on cheap models. Acmer only labels the 20W-and-up S2 and P1 S Pro versions with a free air pump (and the P2, S2 Pro and P3 have one built in); for the smaller models, Acmer’s C4 pump is $59. See best laser engraver air assist kit.
- A rotary for tumblers. Acmer’s M2 roller is $59 and the M4 chuck rotary $168.
- An enclosure for open frames. $59 for the S1 mini box, $79 for the larger R20.
The bottom line
Buy the Acmer P2 33W at $589 if you want one open-frame Acmer that cuts and engraves well; the 33W costs only $50 more than the 20W, and it is the one Acmer with an independent power reading (31W on a 33W claim). Buy the P3 24W ($999) or 48W ($1,199) if the laser has to live indoors, and the P3 2IN1 ($1,099) if bare metal is part of the job. The S1 6W ($169) and K1 12W ($269.99) are good small first lasers. Whatever you choose, buy it from the Acmer product page that has the reviews and package options, compare one-pass cutting figures rather than maximums, and remember that the laser module is covered for 6 months, not 12.
Sources
- acmerlaser.com product pages and store catalog, read November 4, 2026: S1, K1, S2 and S2 4/7/12W, P1 S Pro and P1 S pro 6/10W, S2 Pro, P2 (spec table and warranty FAQ), P3 48W/24W (one-pass and maximum cutting tables, FAQ), P3 IR & Diode, GE1, PM and SM fiber markers, accessories (laser glasses, C4 air pump, AP220/AP360 purifiers, M2/M4 rotaries, enclosures)
- Acmer warranty policy, refund policy, shipping policy and About page (read November 4, 2026)
- Hobby Laser Cutters: Sculpfun S30 Ultra vs Atomstack Maker A30 vs Longer Laser B1 vs Acmer P2 (power meter readings, pass counts; 2023, pre-production P2)
- Make: Acmer P2 review and Make: Acmer SM 60W MOPA review
- 3DWithUs reviews of the P2 33W, P3 24W and P1 S Pro 6W
- The Gadgeteer: Acmer P2 33W review
- TechRadar: Acmer P3 IR & Diode review, Creative Bloq: Acmer P3 review and techreviewer.de: Acmer P3 2IN1 test
- FirstQuadcopter: Acmer S1 6W review and Hoffman Engineering: Acmer K1 review
- Hackster: Acmer AM 60W MOPA review
- CPSC recall database (saferproducts.gov) and openFDA device recalls: no Acmer recalls found (November 4, 2026)
- Bowdoin College laser safety program (ANSI-based laser classes: Class 4 above 500 mW)