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Longer · Diode
Longer Ray7S · 40W
The cutting Ray7S: a 40W diode with air pump in a Class 1 cabinet, for thick wood and dark acrylic
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Last updated How we evaluate
Released October 2026
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Showing specs for: 40W
TL;DR
The Ray7S 40W is the top of Longer's new enclosed range: $849.99 for the Basic Set on Longer's store in October 2026, the only Ray7S version with the air pump in the box. Longer shows it cutting 30 mm basswood and 35 mm black acrylic, without stating the number of passes; by our estimate it cuts 10–15 mm basswood in one pass. Klipper firmware, 600 mm/s and a Class 1 cabinet come with a modest 305 × 300 mm bed, and it costs about $850 less than xTool's enclosed 40W.
Best for
What makes this machine stand out
Hardware and workflow features worth understanding before you buy : not just wattage on a label.
Air pump in the box
The only Ray7S version that ships with the air-assist pump, ready to cut thick stock.
30 mm basswood, 35 mm black acrylic
The maximum cuts Longer shows for the Ray7S, in several passes; one-pass cuts reach about 10–15 mm basswood by our estimate.
Half the price of the xTool S1 40W
$849.99 in October 2026, against about $1,699 for xTool's enclosed 40W.
Our verdict
Ideal if you
The 40W Ray7S brings real cutting power into a Class 1 cabinet for well under $1,000, with the air pump included, Klipper firmware and 600 mm/s motion. Few enclosed 40W diodes cost this little.
Skip if you
The 305 × 300 mm bed is small for signs and panels, the wide spot is a compromise for fine engraving, and Longer's 30 mm / 35 mm cut claims come without a pass count. It is a brand-new machine: exhaust capacity and cabinet durability have not been independently tested.
Pros
- Air pump included, unlike the smaller Ray7S versions, so it cuts cleanly out of the box
- Longer shows 30 mm basswood and 35 mm black acrylic cuts; by our estimate 10–15 mm basswood goes in one pass
- $849.99 in October 2026, about $850 less than xTool's enclosed S1 40W and $300 less than Acmer's P3 48W
Cons
- Smallest bed of the range at 305 × 300 mm, well below the S1 and P3 at this power
- Widest spot of the range at 0.10 × 0.15 mm according to Longer: fine photos are softer
- Longer does not state passes for its 30 mm and 35 mm claims, and no independent cut tests exist yet
What this machine is for
Cutting thick plywood and dark acrylic in a closed Class 1 cabinet at home
40W module · Longer Ray7S
Laser spot size
0.10 × 0.15 mm
Motion precision: —
Sample engrave job
~8–12 min
10 × 10 cm (4 × 4 in)
Sample cut job
~4–7 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 & plywood
- · Leather
- · Slate & stone
- · Coated or painted metal
- · Glass & ceramic (with care)
- · Dark acrylic
Accessories & add-ons
Typical inclusions and add-ons for this profile : confirm your SKU.
- Included
Enclosure / cabinet
- Optional
Laser safety glasses
Still useful when servicing or with lid open
- Recommended
Fire extinguisher
Editorial guidance : not a live parts list. See also: Ventilation setup · Safety basics
Practical notes
Beginner notes
This profile is the 40W version of the Longer Ray7S. Pick it if cutting thick plywood, boxes or dark acrylic is the main job and you want the beam contained in a Class 1 cabinet. Compare the other Ray7S versions with the chips above if you mostly engrave: smaller modules have finer spots and cost far less. Plan an outdoor exhaust route from day one.
Pro tips
Duct the exhaust outside: at 40W a closed cabinet fills with smoke fast. Split thick cuts into several faster passes to limit charring and flare-ups, and keep the tinted lid clean. Lower the power well under half for photos to keep the wide spot from blurring detail.
Pro / technical specsRaw numbers for experienced users comparing machines.
- Max speed (spec)
- 600 mm/s
- Avg engrave speed
- ~120–300 mm/s
- Avg cut speed
- ~6–12 mm/s (3 mm)
Common questions
Can the Ray7S 40W really cut 30 mm basswood?
Longer's product page shows 30 mm basswood and 35 mm black acrylic cuts, without saying how many passes they take; such depths always need several passes on a diode. By our estimate, the 40W cuts 10–15 mm basswood in one pass with its included air pump.
Ray7S 40W or xTool S1 40W?
The Ray7S 40W costs $849.99 against about $1,699 for the xTool S1 40W (October 2026). The S1 offers a 498 × 319 mm bed, a mature ecosystem and an IR option; the Ray7S halves the price with a smaller bed and no track record yet.
Ray7S 40W or open Ray7 40W?
The open Ray7 40W costs $669.99 and has a larger 405 × 400 mm bed, but no air pump in the box and no cabinet. The Ray7S 40W adds $180 for the Class 1 enclosure, Klipper firmware and the included pump.
Alternatives to the Longer Ray7S 40W
Machines in the same space, picked from our database by type, price, and score.
xTool · Diode · $1,699 – $3,049
The 40W S1 is xTool's high-power enclosed diode. Still not CO₂, but the extra optical power helps on thicker basswood versus the 20W cabinet.
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.
Longer · Diode · $670
The Ray7 40W is the top of Longer's new open-frame range: $669.99 on Longer's store in October 2026, $10 less than the Ray5 40W basic set. It cuts a 10 × 10 cm square in 3 mm basswood in about 4–7 min by our estimate and handles 10–15 mm basswood in one pass with air assist, at 600 mm/s on a 405 × 400 mm bed. The trade-off is the widest spot of the range, 0.10 × 0.15 mm, and an air pump sold separately.