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  3. S2 7W vs Ray2 15W

Acmer S2 7W vs Longer Ray2 15W

What S2 7W does better (3) and where Ray2 15W wins (3) — every spec side by side.

Acmer S2 7W
Acmer · 2025S2 7W
5.5Score
3 advantages≈ US$180
vs
Longer Ray2 15W
Longer · 2026Ray2 15W
6.5Score
3 advantages≈ US$320
Higher score
4.4Power & cutting6.5
3.5Speed4.5
8.7Precision8.7
4.9Work area2.6
3.1Safety8.3
5.8Features & ease of use5.0

Why is S2 7W better than Ray2 15W?

  1. Work area (surface)900 cm² vs 143 cm²6.3×
  2. Work area depth (Y)300 mm vs 110 mm2.7×
  3. Work area width (X)300 mm vs 130 mm2.3×

Why is Ray2 15W better than S2 7W?

  1. Laser output power7 W vs 15 W2.1×
  2. Enclosed (fully covered)No · S2 7W: Yes
  3. Max engraving / travel speed167 mm/s vs 200 mm/s+20%
Specifications

Side by side

Acmer S2 7WAcmer S2 7W≈ US$1805.5
Longer Ray2 15WLonger Ray2 15W≈ US$3206.5
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Laser power
Laser output power7 W15 W
Work area
Work area300 × 300 mm130 × 110 mm
Work area width (X)300 mm130 mm
Work area depth (Y)300 mm110 mm
Work area (surface)900 cm²143 cm²
Speed & cutting
Max engraving / travel speed167 mm/s200 mm/s
Max cutting depth – wood / plywood (one pass)—10 mm
Precision
Laser spot size0.06 mm0.06 mm
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—
Connectivity & software
Compatible softwareLightBurnLightBurn, LaserGRBL
LightBurn compatibleYesYes
Size & power
Width490 mm—
Depth500 mm—
Height195 mm—
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