OMTech K40+ 45W CO2 Laser Engraver, 12"x8" Desktop Laser Cutter & Engraving Machine for Home Use, LaserGRBL LightBurn Compatible, Adjustable Laser Head Air Assist for Wood Glass More
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Extended holiday returns
Returnable until Jan 31, 2026 Learn more
Returnable until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
17 left in stock
Arrives
Thursday, Nov 20
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Size: 45W
Features
- Global Support, Local Care: Our 24/7 global support team delivers expert assistance, including technical guidance and local demos by appointment. With 2 years of comprehensive service, we ensure peace of mind and personalized care wherever you are
- 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: Engrave at speeds up to 300 mm/s, ideal for complex designs and bulk orders. Get more done in less time with precision that meets the needs of DIY makers and small businesses alike
- Flexible Work Area Design: A compact 12"8" workspace supports both standard and irregular materials. The honeycomb bed handles flat items while the detachable base and optional rotary axis allow engraving on cylindrical or taller objects, expanding your creative potential
- Integrated Air Assist System: The built-in 45 air assist auto-adjusts airflow based on laser power. It clears smoke and debris, protects the lens, reduces wood carbonization, and lowers fire riskespecially during high-power cutting jobs
- Wide Software Compatibility: Fully supports LightBurn and LaserGRBL, offering seamless control whether you're a beginner or expert. Enjoy smooth workflows and precise execution from design to finished product
- Comprehensive Safety Features: Prioritizing user safety, this machine includes door and water protection, an emergency stop function, and a flame-retardant acrylic panel. The high-powered exhaust fan efficiently removes smoke, ensuring a clean and safe workspace
- Laser Class 2, 0.827 mW output power; Model: SH-K40
- Versatile Material Compatibility: Perfect for a wide range of materials such as wood, acrylic, and leather, with adjustable laser settings to optimize performance for various projects, making it ideal for DIY enthusiasts and small businesses alike
Product Dimensions: 31.9 x 19.7 x 9.8 inches
Item Weight: 83.6 pounds
Date First Available: August 29, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 20
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
Great product - after 2 hours of not working realized that we had the water hoses on backwards. Then boom it worked amazingly.
Reviewed in the United States on July 15, 2025 by Lost Angel Lost Angel
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
I had a project where I needed to cut a lot of acrylic pieces so I purchased one of these. I am very impressed with how good it works on 1/8" think material. Edges look great. Seems well made for the price you pay. Comes with ventilation tube and water cooling. You just need a bucket for the water. I would have given it 5 stars but didn't for two reasons. 1. It wouldn't work at first. I traced the problem to a bad solder joint on the lid safety switch. Easy fix. 2. Poorly designed bed. It seems that they could have designed a less expensive bed that could be adjusted up and down instead of a fancy bed that has a spring-loaded door, which is not that useful. I replaced that with a homemade one that works much better. Youtube has good ideas on how to do this. If you like to tinker, this is a great unit to start with. If you want something that you can put into production right out of the box, you will have to spend at least 4 times more money.
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Reviewed in the United States on December 4, 2022 by Reggie L.
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
Update: after contacting the seller, they promptly sent us a replacement tube, which runs great. Easy installation. Healthy and stable beam. Clean cuts. Happy kids. I hope this tube will have long lifetime ------------------- Purchased the machine in July, and have been using sporadically, once a week or so, for short low-intensity jobs (10% of laser power). Worked great when it was working. However, even with adequate cooling (the coolant temp has always been within the 18-20C range), the laser beam switched to the doughnut-shaped profile in November, i.e. useless for any kind of job due to the inability to focus the beam properly, and now the tube has to be replaced.
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Reviewed in the United States on November 23, 2022 by Ivan
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 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
Mad Skills most definitely required. I knew going in that the assembly of these was shoddy at best but....wow. Out of the box the X axis was nearly unmovable. Had to remove the gantry entirely, disassemble it, unwarp it and then reassemble it just to gain movement. The Y axis bearing is horribly noisy and unlikely to last long. Plenty of stripped screws had to be replaced with better hardware. The red dot laser was not wired in....the ends were barely just pushed into a connector and fell out as soon as it was touched. The inside of the cabinet was dirty as are the mirrors and lens. Hopefully the tube is fine...going to be a bit of work to get this to the point of ven applying power. If you love fixing things, redesigning things and wondering how any of this can pass any quality assurance process then this is your baby. Edit: After several days of checking all connectors, repairing those found to be poorly crimped, etc., repairing the most glaring issue of no proper ground, replacing most of the screws on the gantry and mirror, reinstalling both temp meters because they fell out and aligning the mirrors it actually runs. I was able to confirm it is operational, laptop and k40 Whisperer can indeed control it. So in a nut shell....be prepared to rebuild this unit. It's a good parts kit, the case is good, tube is fine. Electrically dangerous until properly modified but....it will cut and engrave with a little work. You should be comfortable with soldering, mechanical skills, electrical skills and have a Macgyver Engineering degree.
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Reviewed in the United States on July 24, 2022 by Alan S.