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  3. S2 Pro 36W vs R2 20W

Acmer S2 Pro 36W vs Ortur R2 20W

What S2 Pro 36W does better (5) and where R2 20W wins (3) — every spec side by side.

Acmer S2 Pro 36W
Acmer · 2025S2 Pro 36W
7.6Score
5 advantages≈ US$580
vs
Ortur R2 20W
Ortur · 2025R2 20W
8.1Score
3 advantages≈ US$730
Higher score
8.6Power & cutting7.7
6.1Speed5.3
5.0Precision7.6
7.7Work area4.5
3.2Safety9.0
5.7Features & ease of use8.6

Why is S2 Pro 36W better than R2 20W?

  1. Work area (surface)1,600 cm² vs 630 cm²2.5×
  2. Laser output power36 W vs 20 W+80%
  3. Max engraving / travel speed400 mm/s vs 333 mm/s+20%
  4. Work area depth (Y)400 mm vs 210 mm+90%
  5. Work area width (X)400 mm vs 300 mm+33%

Why is R2 20W better than S2 Pro 36W?

  1. Enclosed (fully covered)No · S2 Pro 36W: Yes
  2. Built-in cameraNo · S2 Pro 36W: Yes
  3. Flame / fire detectionNo · S2 Pro 36W: Yes
Specifications

Side by side

Acmer S2 Pro 36WAcmer S2 Pro 36W≈ US$5807.6
Ortur R2 20WOrtur R2 20W≈ US$7308.1
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm), Infrared diode (1064 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Laser power
Laser output power36 W20 W
Work area
Work area400 × 400 mm300 × 210 mm
Work area width (X)400 mm300 mm
Work area depth (Y)400 mm210 mm
Work area (surface)1,600 cm²630 cm²
Speed & cutting
Max engraving / travel speed400 mm/s333 mm/s
Precision
Laser spot size0.1 mm—
Positioning accuracy—0.01 mm
Linear railsYes—
Safety
Enclosed (fully covered)NoYes
Laser safety class—Class 1 (eye-safe, enclosed)
Flame / fire detectionNoYes
Tilt / movement sensor—Yes
Exhaust fan—Yes
Features
Air assistYesYes
Built-in cameraNoYes
Autofocus / auto heightNoNo
Rotary attachment supportYes—
Offline engraving (no computer)—Yes
Connectivity & software
Phone app control—Yes
Compatible softwareLightBurn—
LightBurn compatibleYes—
Size & power
Width—470 mm
Depth—400 mm
Height—214 mm
Weight—14.1 kg
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