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AtomStack Kraft 40 W Diode

Higher cutting performance

The AtomStack Kraft 40 W is built for makers, designers, and small businesses who demand high power and unmatched speed. Built to handle ambitious large-scale projects, this laser cutter delivers the power to slice through thicker materials in a single pass, drastically cutting production time on every project.

High-performance cutting

The 40 W diode laser cuts through 18 mm wood in one pass, providing the power and speed needed for thick materials and high-volume production.

Higher precision

Automatic focus, HD camera preview, and AI batch engraving ensure crisp detail and less waste.

Maximised throughput

Drastically reduce project times with increased wattage, allowing you to cut and engrave large batches faster than ever before.

A powerful diode laser cutter for makers and businesses

Infographic of a 40 W diode laser module cutting a block of black acrylic of 15 mm thickness and paulownia wood of 18 mm thickness in one pass.

Cut materials up to 18 mm in a single pass

Big ideas, big workspace

50 × 32 cm

working area

62 × 42 cm

max material size

Man holding an engraved piece of wood in front of an open AtomStack Kraft 40 W.

A powerful laser cutter for makers and businesses

Buy AtomStack Kraft 40 W now

Cut and engrave a wide variety of materials

The AtomStack Kraft 40 W makes it simple to take on a vast range of projects.

Cut & engrave

wood

wood

cut & engrave

bamboo

bamboo

cut & engrave

leather

leather

cut & engrave

dark opaque acrylic

dark opaque acrylic

cut & engrave

MDF

MDF

cut & engrave

cardboard

cardboard

cut & engrave

kraft paper & paper

kraft paper & paper

cut

fabric

fabric

cut & engrave

denim

denim

engrave

felt

felt

cut & engrave

cork

cork

cut

brushed stainless steel

brushed stainless steel

engrave

stone (shale, brick, marble, jade,...)

stone (shale, brick, marble, jade,...)

engrave

ceramics

ceramics

engrave

plastic (PP, PE)

plastic (PP, PE)

engrave

PCB board

PCB board

engrave

Want to engrave more metals or jewellery?

While the Kraft 40 W is our powerhouse for deep cutting at a higher speed, it uses a blue diode laser. For high-contrast engraving on gold, silver, or bare steel, check out the AtomStack Kraft dual laser cutter & engraver with its dual 20 W diode laser and 1.2 W infrared laser for engraving.

Discover the AtomStack Kraft Dual

Create with the AtomStack Kraft

Wooden lasercut earrings of the wings of an angel.
Wood
Engraved white tumbler with halloween designs.
Stainless steel
Notebook with a wooden cover and an engraved zebra on the front.
Wood
Papercut scene of a T-rex roaring against a forest background.
Paper
Engraved leather patches on a blule and white cap.
Leather
Engraved blade of a knife with a floral motif
Stainless steel
Two leather keychains engraved with the name James Carter
Leather
Engraved wooden cover of a book depicting a forest and vines, and the eye of a dragon peeking through.
Wood
Round piece of slate with an engraved snowglobe.
Stone
Wooden cutting board with an engraved design of the text Dear santa and spots to put a carrot, cookies and milk.
Wood

Advanced features for a perfect finish

AI Batch engraving

With its batch engraving function, the AtomStack Kraft 40 W lets you engrave multiple items in a single setup. Simply position your materials once, and the machine takes care of the rest. This saves time, reduces errors, and dramatically boosts efficiency for both creative projects and production runs.

Built-in 16 MP HD camera

The built-in camera achieves 0.5 mm positioning accuracy to reduce waste and simplify alignment.

Side by side view. Left shows the 40 W diode module cutting through a piece of wood in one pass. Right the module engraves on metal flasks.

One-click switch between cutting and engraving

Don't let the 40 W label limit you. Lower the output to 20 W with a single click in the software for crisp, fine engraving, or unleash full power for cutting thicker materials in a single pass.

Close-up of the 40 W diode module and the autofocus system. Inset of a finger pressing the autofocus button on the front of the machine.

One-touch autofocus

The advanced autofocus system delivers pinpoint accuracy in seconds. No guesswork, just faster setup and sharper creations.

Fast & quiet

Dual-shaft guide rails on both axes ensure whisper-quiet operation and blazing speeds up to 600 mm/s, guaranteeing smooth motion and professional-grade results.

Power-off resume

Unexpected power outage? No problem. The AtomStack Kraft picks up exactly where it left off, preventing wasted materials.

Design without limits in AtomStack Studio

AtomStack Studio is our free, easy-to-use software that makes creating with your laser engraver effortless. With AI text-to-image tools, smart auto-settings, and a vast library of ready-to-use templates, you can bring ideas to life quickly. Built-in material presets ensure that even beginners can craft professional-quality projects in as little as 10 minutes.

A desktop computer, laptop, tablet and phone showing AtomStack Studio.
Windows logo Apple logo Android logo iOS logo

Available on Windows, macOS, Android and iOS.

Learn more about AtomStack Studio
Lightburn logo

The AtomStack Kraft 40 W is also fully compatible with LightBurn, so you can continue working with the software you know best.

Safe and reliable:Class 1 certified laser

Safety is a top priority, which is why the AtomStack Kraft 40 W is equipped with multiple features to protect you and your workspace.

Close-up of the 40 W diode module and the fire extinguishing feature.

Flame detection & flame extinguishing air pump

An air-assist pump not only boosts cutting performance but also extinguishes flames for a safer, cleaner workflow.

Frontal close-up of the AtomStack Kraft against a black background. On top is an illustration of a shield containing 'Class 1'

Class 1 laser safety certified

Use safely without glasses thanks to the fully enclosed design.

Exhaust vent showing the path of smoke and dust leaving the AtomStack Kraft.

Enhanced exhaust system

The integrated exhaust clears smoke and reduces dust.

AtomStack Kraft with the lid opened

Auto laser shut-off

Your AtomStack Kraft 40 W will stop all operations when the lid is opened to keep you safe.

Side view of the AtomStack Kraft with an inset of the emergency stop button.

Emergency stop

The emergency switch instantly stops your laser cutter when hazards occur.

Expand your AtomStack Kraft 40 W

Accessories & add-ons

With a range of optional add-ons, you can extend the capabilities of your AtomStack Kraft 40 W, increase efficiency, and take on new shapes and longer materials with confidence.

Close-up of the R6 Rotary Roller with a metal water bottle placed on it while it is being engraved.

R6 Rotary Roller

The R6 Rotary Roller makes cylindrical engraving smooth and effortless and is ideal for tumblers, bottles, and larger cylindrical objects. Its adjustable roller length supports extra-long items, maintaining perfect alignment and consistent results throughout the engraving process.

Learn more about R6 Rotary Roller

Close-up of the R8 Rotary Chuch engraving a ring

R8 Rotary Chuck

Engrave round or irregularly shaped objects like rings, cups, mugs, or spheres with absolute precision. The R8 Rotary Chuck firmly holds cylindrical or uneven materials for stable, accurate rotation during engraving. Perfect for professional personalisation and product marking.

Learn more about R8 Rotary Chuck

R7 Pro Conveyor Feeder

Boost productivity with the R7 Pro Conveyor Feeder. Expand the working area of your AtomStack Kraft 40 W to 80 × 50 cm and engrave long boards, panels, signage, or continuous materials with precision. Streamline production without constant repositioning.

Learn more about R7 Pro Conveyor Feeder

AtomStack Kraft 40 W with the riser base installed. The laser cutter is standing on a wooden table against a yellow background.

H4 Riser Base

The H4 Riser Base gives your AtomStack Kraft 40 W the clearance needed for the rotary chuck or roller add-ons and thicker workpieces. Engineered for rigidity and vibration control, it delivers stable, precise engraving and consistent focus across every job.

Learn more about R4 Riser Base

Breathe easy with the AtomStack D4 air purifier

Pair your Kraft 40 W with the AtomStack D4 air purifier for a cleaner, safer workspace. Its 4-layer filter captures 99.97% of smoke and dust, so you can focus on precision cutting without the fumes.

Discover AtomStack D4
AtomStack D4 air purifier

Kraft Dual or Kraft 40 W?

Find your match

Choosing the right machine depends on your primary material and production goals. Both share the same Class 1 safety, 16 MP camera, and fire suppression system, but their power delivery differs.

AtomStack Kraft Dual laser cutter

Kraft Dual

  • 20 W diode laser + 1.2 W infrared
  • Slices 10 mm wood in one pass
  • Best for jewellery, fine metal marking, and maximum material variety.
Discover Kraft Dual
AtomStack Kraft 40 W laser cutter

Kraft 40 W

  • 40 W diode laser
  • Slices 18 mm wood in one pass
  • Best for thicker materials, high-speed cutting, and large-scale fabrication.
Buy Kraft 40 W
Man in a workshop looking at what is happening inside of the AtomStack Kraft 40 W.

AtomStack Kraft 40 W specifications

Buy AtomStack Kraft 40 W
Laser output
40 W diode
Dimensions
79.1 × 61 × 26.1 cm
Working area
50 × 32 cm (80 × 50 cm with R7 Pro Conveyor Feeder)
Built-in camera
16 MP resolution
Precision & speed
  • Diode: ~ 0.08 × 0.12 mm
  • Up to 600 mm/s speed
Safety
IEC 60825-1 Class 1 Laser Safety Certified
Safety features
Class 1 enclosure, fire extinguisher, emergency stop, lid open detection, tilt detection
Supported software
AtomStack Studio, AtomStack App, LightBurn, LaserGRBL
Supported file formats
DXF, JPG, PNG, BMP, SVG and GIF
Supported materials
Wood, leather, denim, ceramics, MDF, anodised aluminium, dark opaque acrylic, dark glass, kraft paper, coated metals, brushed stainless steel, stone, PCB boards and more
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