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  3. S2 Pro 36W vs Ray7S 40W

Acmer S2 Pro 36W vs Longer Ray7S 40W

What S2 Pro 36W does better (3) and where Ray7S 40W wins (4) — every spec side by side.

Acmer S2 Pro 36W
Acmer · 2025S2 Pro 36W
7.6Score
3 advantages≈ US$580
vs
Longer Ray7S 40W
Longer · 2026Ray7S 40W
9.1Score
4 advantages≈ US$850
Higher score
8.6Power & cutting9.0
6.1Speed8.0
5.0Precision8.7
7.7Work area5.3
3.2Safety8.3
5.7Features & ease of use6.9

Why is S2 Pro 36W better than Ray7S 40W?

  1. Work area (surface)1,600 cm² vs 946 cm²+69%
  2. Work area width (X)400 mm vs 305 mm+31%
  3. Work area depth (Y)400 mm vs 310 mm+29%

Why is Ray7S 40W better than S2 Pro 36W?

  1. Enclosed (fully covered)No · S2 Pro 36W: Yes
  2. Laser spot size0.1 mm vs 0.06 mm+67%
  3. Max engraving / travel speed400 mm/s vs 600 mm/s+50%
  4. Laser output power36 W vs 40 W+11%
Specifications

Side by side

Acmer S2 Pro 36WAcmer S2 Pro 36W≈ US$5807.6
Longer Ray7S 40WLonger Ray7S 40W≈ US$8509.1
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Laser power
Laser output power36 W40 W
Work area
Work area400 × 400 mm305 × 310 mm
Work area width (X)400 mm305 mm
Work area depth (Y)400 mm310 mm
Work area (surface)1,600 cm²946 cm²
Speed & cutting
Max engraving / travel speed400 mm/s600 mm/s
Precision
Laser spot size0.1 mm0.06 mm
Linear railsYes—
Safety
Enclosed (fully covered)NoYes
Laser safety class—Class 1 (eye-safe, enclosed)
Flame / fire detectionNoNo
Features
Air assistYesYes
Built-in cameraNoNo
Autofocus / auto heightNoNo
Rotary attachment supportYes—
Offline engraving (no computer)—Yes
Connectivity & software
Connections—Wi-Fi
Wi-Fi—Yes
Compatible softwareLightBurn—
LightBurn compatibleYes—
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