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  3. K1 12W vs K1 7W

Acmer K1 12W vs Acmer K1 7W

What K1 12W does better (1) and where K1 7W wins (0) — every spec side by side.

Acmer K1 12W
Acmer · 2025K1 12W
5.2Score
1 advantage≈ US$270
Higher score
vs
Acmer K1 7W
Acmer · 2025K1 7W
4.5Score
0 advantages≈ US$230
6.7Power & cutting4.4
3.5Speed3.5
4.0Precision4.0
3.9Work area3.9
9.6Safety9.6
2.9Features & ease of use2.9
Dimensions

Size comparison

K1 12WK1 7W
286 × 190273286 × 190273
K1 12WK1 7WDifference
Height190 mm190 mm=
Width286 mm286 mm=
Depth273 mm273 mm=
Weight2.4 kg2.4 kg=

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

Why is K1 12W better than K1 7W?

  1. Laser output power12 W vs 7 W+71%

Why is K1 7W better than K1 12W?

K1 7W has no measurable advantages in this pair.

Specifications

Side by side

Acmer K1 12WAcmer K1 12W≈ US$2705.2
Acmer K1 7WAcmer K1 7W≈ US$2304.5
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Laser power
Laser output power12 W7 W
Work area
Work area150 × 150 mm150 × 150 mm
Work area width (X)150 mm150 mm
Work area depth (Y)150 mm150 mm
Work area (surface)225 cm²225 cm²
Speed & cutting
Max engraving / travel speed167 mm/s167 mm/s
Precision
Positioning accuracy0.04 mm0.04 mm
Safety
Enclosed (fully covered)YesYes
Flame / fire detectionNoNo
Features
Air assistNoNo
Built-in cameraNoNo
Autofocus / auto heightNoNo
Connectivity & software
Compatible softwareLightBurnLightBurn
LightBurn compatibleYesYes
Size & power
Width286 mm286 mm
Depth273 mm273 mm
Height190 mm190 mm
Weight2.4 kg2.4 kg
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