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  3. S2 Pro 48W vs Ray7 40W

Acmer S2 Pro 48W vs Longer Ray7 40W

What S2 Pro 48W does better (4) and where Ray7 40W wins (3) — every spec side by side.

Acmer S2 Pro 48W
Acmer · 2025S2 Pro 48W
8.0Score
4 advantages≈ US$760
vs
Longer Ray7 40W
Longer · 2026Ray7 40W
8.4Score
3 advantages≈ US$670
Higher score
9.4Power & cutting9.0
6.1Speed8.0
5.0Precision5.7
7.7Work area5.3
3.2Safety6.9
5.7Features & ease of use6.9

Why is S2 Pro 48W better than Ray7 40W?

  1. Work area (surface)1,600 cm² vs 946 cm²+69%
  2. Laser output power48 W vs 40 W+20%
  3. Work area width (X)400 mm vs 305 mm+31%
  4. Work area depth (Y)400 mm vs 310 mm+29%

Why is Ray7 40W better than S2 Pro 48W?

  1. Laser spot size0.1 mm vs 0.06 mm+67%
  2. Max engraving / travel speed400 mm/s vs 600 mm/s+50%
  3. Flame / fire detectionNo · S2 Pro 48W: Yes
Specifications

Side by side

Acmer S2 Pro 48WAcmer S2 Pro 48W≈ US$7608.0
Longer Ray7 40WLonger Ray7 40W≈ US$6708.4
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Laser power
Laser output power48 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
Positioning accuracy—0.06 mm
Linear railsYes—
Safety
Enclosed (fully covered)NoNo
Flame / fire detectionNoYes
Emergency stop button—Yes
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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