OMTech K40+ CO2 Laser Engraver with Laser Coolant, 8"x12" 45W Desktop Laser Engraving Machine for Home Use, LaserGRBL LightBurn Compatible, Adjustable Laser Head Air Assist for Wood Glass More
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Size: 45W with Laser Coolant
Features
- Separate Shipments: Please note that the laser engraver and the laser coolant will arrive in two different packages due to logistics handling
- Powerful 45W Laser Performance: Upgraded to 45W, our laser cutter now slices through 0.4" (10mm) acrylic and 0.31" (8mm) wood with ease. This enhanced power boosts cutting speed by 1.52 and increases depth by 1520%, delivering professional results for both personal and commercial use
- High-Speed Engraving Capability: Experience rapid engraving speeds up to 300mm/s. This capability allows intricate designs and larger projects to be completed efficiently, making it perfect for businesses requiring quick turnaround times
- Flexible Work Area Design: With an 12"x8" work area, our dual-use platform accommodates regular and irregular objects. The honeycomb surface is perfect for flat items, while the detachable base and rotary axis enhance versatility for larger projects
- Integrated Air Assist System: The advanced 45 air assist feature enhances engraving and cutting quality by removing smoke and debris, keeping the lens clean. This innovation improves cutting precision while also minimizing fire risks during operation
Package Dimensions: 38 x 26 x 17 inches
Item model number: SH-K40
Is Discontinued By Manufacturer: No
Item Weight: 89.8 pounds
Manufacturer: OMTech
Date First Available: March 21, 2024
Frequently asked questions
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 45W
As someone new to CO₂ laser technology, I initially found the setup process quite challenging. My primary goal was to cut acrylic, but I quickly realized I had a lot to learn. Fortunately, OMTech's customer service was exceptional—they provided clear answers to my questions and ensured I felt supported throughout the process. One standout moment was the video consultation with a technician, who patiently guided me through the alignment procedure. That hands-on walkthrough completely clarified what had seemed so confusing at first, and I was able to properly align the laser with confidence. Having transitioned from a diode laser to a CO₂ system, I couldn’t be happier with the upgrade. The machine performs beautifully, and I’m excited to explore its full potential as I continue growing in this craft.
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Reviewed in the United States on July 16, 2025 by KIMBERLY MILLER
Size: 45W with Laser Coolant
OMG…This is my favorite from OMTech, and I own another one it’s the 60w fiber laser. There lasers are the absolute best. The quality of the work it’s does is amazing and the ease of use flawless. I love OMTech. I’m saving to get the 100w Co2 laser, won’t settle for anything less.
Reviewed in the United States on January 11, 2026 by Jeff
I did a lot of research prior to buying this unit, and I don't regret, the unit have lots of upgrades already installed, like limit switch, door safety, and many more.... some parts are not the highest quality but for the price it is a good start, and will give you the opportunity to perform more upgrades. the biggest advantage is that the unit have a good warranty, and believe me they will give you a high level support. one week after using the unit, the power supply stop working, (I was 2 cents close to return the entire unit, but they quickly contact me, and send me a new power supply), here is why I don't give it 5 stars, the unit requires alignment, like any other laser or 3d printer on the market, but the laser lens/mirror holders on the unit are super difficult to align, (they are super cheap), but with some patience, I was able to squeeze a few months and use them before buying a new set). (I haven't installed the new set, so my current machine is working ok). things to consider, laser is powerful, you can cut lots of stuff, but you will need some type of air assist, (that should be your first upgrade). if they add that from factory, this machine will be perfect. maybe after one more year, I'll buy/test the next size up, 50 or 60W, and the main reason is the bed size, and stronger rail system. this is not a sponsor review, I am happy with omtech quality.
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Reviewed in the United States on January 29, 2023 by julio
Size: 45W with Laser Coolant
The CO2 laser has all the bells and whistles you need. Even has Safety latches, if you open a door the laser stops burning. Designed with the user in mind. Cuts as advertised and is far better than my old K40.
Reviewed in the United States on November 7, 2025 by Nicholas Williams
This thing is awesome! Setting it up was a breeze! Went through the steps to check if the lasers are aligned properly and straight out of the box, they were! We have been using it for about a year now and haven't experienced many issues. We did add air assist, and upgraded the lens. We also removed the bed and used one that has an adjustable Z height for larger materials (I recommend doing this!). Overall a very good bang for you buck purchase!
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Reviewed in the United States on October 6, 2023 by Rsmith9945
Size: 45W with Laser Coolant
Love my laser. It has been great to use. I did upgrade and get a chiller because it seems to run warm even in a cold room.
Reviewed in the United States on August 11, 2025 by Jennifer Reese
Size: 45W
So far, not impressed. The machine arrived. I just got to unboxing. It’s dented. Next, two loose nuts on the bottom of the machine that fell off while moving it in place. These hold the power supply in place. The gantry is not aligned properly either. Cables not plugged in, data cable port not soldered to the laser currency display. Loose parts inside. Who quality checks these things? I get it, it’s not super expensive. I’m just trying to expand my small business a little by adding a CO2 laser. Yes, I use lasers already. If you’re going to make a product, don’t make people fix the machine prior to use. I think I’ll be requesting a replacement.
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Reviewed in the United States on September 4, 2025 by xStatic xStatic
Size: 45W with Rotary axis
The media could not be loaded. Saludos, He ensendido la omtech y no he podido hacer nada porque tengo una fuga de agua que no permite que la temperatura baje, tengo un disgusto, no se realmente que esta pasando. Quiero saber que debo hacer. Espero una opinion al respeto
Reviewed in the United States on January 8, 2026 by Francis Matos