INDEPENDENT GUIDE · glowforge.uk is an independent guide. It is not affiliated with, endorsed by or connected to Glowforge Inc. Glowforge is a trademark of Glowforge Inc.
glowforge.ukThe independent UK guide to Glowforge, laser cutters & 3D printers

Sculpfun · Diode laserSculpfun SF-A9 40W

A 400 × 400 mm open-frame 40W diode cutter with automatic air assist and Wi-Fi/Bluetooth/USB connectivity, positioned by Sculpfun as its standard 40W cutting machine.

  • Work area400 × 400 mm
  • Laser40W diode (switchable to 20W)
  • EnclosedNo — open frame

Opens an Amazon.co.uk search for this model — check the listing is the exact model and seller you want. As an Amazon Associate I earn from qualifying purchases.

Line drawing of a typical diode laser (not this exact model)illustration · not to scale

Work area to scale vs A4

A4400 × 400 mm bed

Specifications

Specifications for the Sculpfun SF-A9 40W
TypeDiode laser
TechnologyOpen-frame 40W blue diode laser (450 nm), switchable 40W/20W power
Laser power40W diode (switchable to 20W)
Work area400 × 400 mm
Max cut (maker’s claim)"can cut 20mm plywood and 6mm dark acrylic at one pass time" (sculpfun.com SF-A9 40W page)
EnclosedNo — open frame
CameraOptional CAM500 camera (in Deluxe set)
Air assistAutomatic air assist
RotaryOptional RA Pro Max rotary (in Advanced/Deluxe sets)
Max speed (as stated)36,000 mm/min
SoftwareLightBurn, LaserGRBL, Sculpfun app
ConnectivityWi-Fi (2.4 GHz), USB, Bluetooth
Weight6.2 kg

Figures as published by Sculpfun, checked 4 October 2026. Blank rows mean the maker doesn’t state it, so we leave it out rather than guess.

Strengths

  • Quoted 20 mm plywood cut in one pass
  • Automatic air assist
  • Wi-Fi, USB and Bluetooth
  • Flame, temperature and tilt sensors

Things to consider

  • Open frame: needs an enclosure or separate room, ventilation and laser-safety glasses
  • Laser class not stated on the page read
  • UK-plug units ship from China
  • Camera and rotary are bundle extras

Who it suits

Workshop users who want a mid-sized, high-power open-frame diode cutter and can manage enclosure, ventilation and eye protection themselves.

Buying in the UK

sculpfun.com SF-A9 40W page (an archived copy dated 2026-03-03) listed 'UK Plug / China' (ship from China) options; page title was labelled '[US Clearance Sale]' but the Sculpfun homepage (snapshot 2026-05-18) still featured SF-A9 as its 'Standard 40W Diode Cutting Machine'. As of 2026-10-04.

Sculpfun’s official website

// Same type

Other diode laser engravers & cutters

See them all →
  • Glowforge Diode

    Glowforge Aura

    • Power 6W diode
    • Area 305 × 305 mm
    • Enclosed yes

    Glowforge's larger Craft Series machine: an enclosed 6W blue-diode laser with a 12 × 12 in bed and a Passthrough slot, aimed at home crafting.

  • Glowforge Diode

    Glowforge Spark

    • Power 6W diode
    • Area 216 × 279 mm
    • Enclosed yes

    Glowforge's entry-level Craft Series machine: a compact enclosed 6W blue-diode laser with an 8.5 × 11 in cutting area and no passthrough.

  • xTool Diode

    xTool S1

    • Power 20W or 40W diode (optional 2W infrared module)
    • Area 498 × 319 mm
    • Enclosed yes

    An enclosed Class 1 diode laser with a near-A3 bed and swappable 20W/40W diode modules, sold as a beginner-friendly alternative to CO2 machines. It has flame detection a…

  • xTool Diode

    xTool M2

    • Power 10W or 20W diode (optional 3W infrared)
    • Area 426 × 320 mm
    • Enclosed yes

    xTool's 2026 craft laser: an enclosed Class 1 diode machine that can also print full colour with an optional CMYK inkjet module and then cut around the print. Aimed at h…