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  3. A70 Max vs S40 Max 48W

AtomStack A70 Max vs Sculpfun S40 Max 48W

What A70 Max does better (5) and where S40 Max 48W wins (2) — every spec side by side.

AtomStack A70 Max
AtomStack · 2024A70 Max
9.1Score
5 advantages≈ US$1,650
Higher score
vs
Sculpfun S40 Max 48W
Sculpfun · 2025S40 Max 48W
8.7Score
2 advantages≈ US$1,150
9.3Power & cutting8.7
4.1Precision2.9
9.7Work area9.6
7.1Safety7.2
7.9Features & ease of use7.7
Dimensions

Size comparison

A70 MaxS40 Max 48W
1,056 × 2301,1281,154 × 2401,113
A70 MaxS40 Max 48WDifference
Height230 mm240 mm−10 mm
Width1,056 mm1,154 mm−98 mm
Depth1,128 mm1,113 mm+15 mm
Weight19 kg15.2 kg+3.8 kg

Drawn to the same scale from the official dimensions (front and side).

Why is A70 Max better than S40 Max 48W?

  1. Laser output power70 W vs 48 W+46%
  2. Positioning accuracy0.01 mm vs 0.1 mm10×
  3. Max cutting depth – wood / plywood (one pass)25 mm vs 20 mm+25%
  4. Work area (surface)6,800 cm² vs 6,640 cm²+2%
  5. Work area width (X)850 mm vs 830 mm+2%

Why is S40 Max 48W better than A70 Max?

  1. Laser spot size0.18 mm vs 0.154 mm+17%
  2. Weight19 kg vs 15.2 kg+25%
Specifications

Side by side

AtomStack A70 MaxAtomStack A70 Max≈ US$1,6509.1
Sculpfun S40 Max 48WSculpfun S40 Max 48W≈ US$1,1508.7
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Wavelength455 nm455 nm
Laser power
Laser output power70 W48 W
Work area
Work area850 × 800 mm830 × 800 mm
Work area width (X)850 mm830 mm
Work area depth (Y)800 mm800 mm
Work area (surface)6,800 cm²6,640 cm²
Speed & cutting
Max engraving / travel speed—600 mm/s
Max cutting depth – wood / plywood (one pass)25 mm20 mm
Precision
Laser spot size0.18 mm0.154 mm
Positioning accuracy0.01 mm0.1 mm
Linear railsYes—
Safety
Enclosed (fully covered)NoNo
Flame / fire detectionYesYes
Emergency stop buttonYesYes
Tilt / movement sensorYesYes
Built-in fume filter / purifier—Yes
Features
Air assistYesYes
Built-in cameraNoNo
Autofocus / auto heightYesYes
Rotary attachment supportYes—
Touchscreen / control panelYesYes
Offline engraving (no computer)YesYes
Connectivity & software
ConnectionsWi-FiUSB, Wi-Fi
Wi-FiYesYes
USB—Yes
Phone app control—Yes
Compatible softwareLightBurn, LaserGRBL, AtomStack StudioLightBurn, LaserGRBL
LightBurn compatibleYesYes
Size & power
Width1,056 mm1,154 mm
Depth1,128 mm1,113 mm
Height230 mm240 mm
Weight19 kg15.2 kg
Rated power consumption—350 W
Input voltage100–240 V—
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