10 Best 40w 4240 Laser Engraver of 2025

Tested and Reviewed: Top 10 40w 4240 Laser Engraver deals with expert ratings from 8.1 to a perfect 10

April 2026 Edition

Editor's Choice

9.7

Mecpow

Mecpow X4 Pro 40W/20W Laser Engraver with Air Assist, Enclosed Laser Cutter with Camera and Led Lights, 30000mm/min Speed Laser Engraving Machine with Auto Fan for Metal and Wood, Acrylic,etc.

Editor's bottom line:

“This 40w 4240 laser engraver is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

One Laser, Two Powers: The laser module fluctuation switch can quickly switch between 40W and 20W to meet different processing needs, no need to change the laser module again. 20W spot 0.08*0.1mm is more fine and suitable for engraving; 40W spot 0.1*0.15mm is more suitable for cutting, which can cut 25mm wood plate-30mm black acrylic-0.15mm black stainless steel plate;
Efficient & Precise: X4 Pro-40W supports high speed engraving mode, working speed is faster, up to 30000mm/min. High speed work while the body is stable, bringing perfect engraving effect. It also supports precision mode for more accurate cutting.
Precise Positioning Built-In Camera: visual-assisted precise positioning and accurate alignment to realize full-frame function. Spacious interior for unlimited creativity. Precise positioning / engraving position control / image tracking / batch engraving / HD video recording meets all needs.
Automatic Control Air System: 30L large capacity air pump, automatic control air pump switch according to software (long life, infinitely adjustable). The laser protection enclosure is also equipped with a highly efficient exhaust system, which can effectively filter and discharge the smoke and dust generated during the operation of the engraving machine, preventing combustion and creating a safer and more favorable environment for engraving in the enclosure.
Comprehensive Safety Protection: The Mecpow X4 Pro-40W has an integrated auto-stop function that will automatically stop work when the protective cover is opened. The engraver is also equipped with a flame sensor, hidden X/Y-axis 4-way limit switch, tilt sensor, safety child lock and emergency stop button, which fully consider the user's safety and avoid accidents. Class 1 certified laser cutter and engraver, perfect for beginners and professionals.
3 Types Of Connection Operation: support WiFi, USB and control panel offline operation: just insert the TF card, no need to connect to the computer, you can precisely position and engrave through the control panel on the body; connect to the engraving software through the machine's WIFI to realize offline engraving; connect to the computer through USB (compatible with Lightburn, Lasergrbl software) to realize wired engraving.
Package Contents: 1 x Main Unit; 1 x Throat Hoop; 1 x Screwdriver; 1 x Exhaust Fan; 1 x Exhaust Pipe; 1 x Laser Module; 1 x Power Adapter; 1 x Metal Plate; 1 x Goggles; 1 x User Manual.

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Picked by 397 people today

9.5

QFLONGER

Longer B1 40W Laser Engraver, 48000mW Output Laser Cutter Machine with Auto Air Assist, 440mm*440mm Honeycomb, Y-axis Rotary Roller 360° Rotation with Bracket,8Pcs Laser Engraver Raiser

Main Highlights

Top Engraving and Cutting CapacityThe laser module of Laser B1 40w consists of eight 6000mW lasers Diode Lasers, providing cutting capabilities comparable to an industrial CNC cutting machine. It can Cutting 20mm plywood, 25mm paulownia wood, 10mm acrylic at once, can cut 40mm plywood, 50mm acrylic board multiple times, cut 0.15mm stainless steel board With a Laser B1 40w, you can experience the power of enhanced cutting ability, making it the creative ideal choice for your needs.laser class ii
High-Speed PerformanceThe laser cutter features an astonishing cutting speed of 36,000 millimeters per minute. This exceptional speed allows for rapid completion of cutting tasks, significantly increasing productivity. With a large working area of 450 x 440 millimeters, the laser cutter provides 23.75% more space compared to its competitors. This ample space allows for handling larger-sized materials and accommodating a variety of cutting projects.Whether it's personal gift making or small businesses, they can have the best performance.
Colorful EngravingThe B1 40W laser engraving machine is capable of directly engraving colorful patterns on mirrored stainless steel. With its outstanding cutting ability and high-precision engraving function, this device allows you to achieve a higher level of artistry and present more realistic and lifelike artwork.Present your colorful imagination.
Durable Material and Fast Heat Dissipation:The 440 * 440mm Honeycomb honeycomb panel is made of steel, making it more stable, durable, and rust-proof. The flat and smooth honeycomb hole design accelerates the emission of smoke so that materials such as wood are not easily blackened by smoke, and the engraving effect is better.
Y-axis laser engraver attachment360° engraving of cylinders or Ultra-fine object, round wood, bowls, cups, beverage cans, bottles, pipes and over-length plate etc.Easy and fast sliding adjustment & sturdy durableJust slide and fix screw by hand, adjust the distance according to the different sizes of cylindrical objects. Choose high-friction 70A anti-slip rubber shaft and Steel Construction, longer service life.
8Pcs Laser Engraver RaiserContains 8 packs, for use on the four corners of the Longer B1 Laser laser engraving machine, each set of columns can increase the engraving height by 50mm and can be stacked.

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9.5

Longer

Longer RAY5 40W Laser Engraver with 40000mW power, 24,000 mm/min speed, 3.5" touchscreen, and App offline control. Ideal for engraving metal, wood, acrylic, glass, and leather.

Main Highlights

Powerful Cutting & Ultra-Fast Engraving The Longer Ray5 40W features an advanced laser-enhancement 40W high-power module, delivering exceptional cutting performance. Effortlessly cut up to 30mm black acrylic and 20mm wood in a single pass, and achieve precise engraving on 0.15mm stainless steel. Equipped with dual-beam technology, it reaches an ultra-fast engraving speed of 24,000 mm/min, enabling high-speed, high-precision, and highly efficient creations.
Upgraded Control System & Precise Engraving Results RAY5 40W is equipped with LONGERs upgraded 32-bit motherboard for faster processing, smoother performance, and greater stability during long operation. The ultra-fine 0.08×0.1mm laser focus delivers higher precision, sharper detail, and cleaner lines on every project. With the built-in air assist kit, it effectively removes smoke and debris, ensuring clean surfaces and perfect engraving results every time.
Vivid Colors & Higher Efficiency Built-in 256-color palette brings your engraving projects to life with vibrant, detailed, and realistic results. Supports 24/7 continuous operation and allows you to control multiple machines simultaneously from one device boosting productivity, saving time, and ensuring a smooth, efficient workflow every time.
Comprehensive Safety Protection Equipped with multiple safety features, including protective glasses, motion protection, temperature control, and an emergency stop switch. The machine will automatically shut down in case of abnormal movement, overheating, or emergencies, ensuring safe operation and giving users peace of mind.
Enhanced Safety & Reliable Operation Equipped with advanced safety features, including protective glasses, motion detection, temperature control, and an emergency stop switch, the RAY5 40W ensures automatic shutdown in case of abnormal movement, overheating, or other emergencies. Provides safe, worry-free operation for both beginners and professionals.

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9.2

Longer

Longer Laser B1 40W Laser Engraver Cutter with Auto Air Assist, Working Speed Up to 600MM/S, DIY Laser Engraver for Wood and Metal, Paper, Acrylic, Glass, Leather, Working Area 17.72x17.32 inch

Main Highlights

Powerful Laser Output Longer laser engraving machine has an Output Power of up to 48W. It can effortlessly cut through materials such as 40mm basswood and 50mm acrylic, allowing you to bring your woodworking and crafting projects to the next level.
High-Speed Performance The laser cutter features an astonishing cutting speed of 36,000 millimeters per minute. This exceptional speed allows for rapid completion of cutting tasks, significantly increasing productivity. With a large working area of 450 x 440 millimeters, the laser cutter provides 23.75% more space compared to its competitors. This ample space allows for handling larger-sized materials and accommodating a variety of cutting projects.
Colorful Engraving The B1 laser engraving machine is capable of directly engraving colorful patterns on mirrored stainless steel. With its outstanding cutting ability and high-precision engraving function, this device allows you to achieve a higher level of artistry and present more realistic and lifelike artwork.
Precision and Quality Enhancement The Laser B1 includes an air-assist pump, controlled by the lightburn software, to enhance precision and quality when cutting. Say goodbye to manual adjustments and hello to effortless perfection.
Advanced Safety Features Your safety is our top priority. The Laser B1 is equipped with eight major safety features, including Move/Flame/Offline/Motionless/Security Lock/Eye Protection/Emergency Stop/Zero Reset. Work with peace of mind, knowing that your well-being is safeguarded.

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9.0

CREALITY FALCON

Falcon2 Pro S 40W Enclosed Laser Engraver with Air Assist, Built-in Camera, Class 1 Laser Cutter and Engraver Machine for Wood, Metal, Batch Prodcuction, Engraving Area 355 * 390mm

Main Highlights

Precise Smart CuttingFalcon 2 Pro Ss smart system automatically adjusts cutting paths for clean, accurate edges with minimal material waste, ensuring every project is efficient and professional.
Smart Auto FocusSmart Auto Focus: One-click auto-focus instantly adjusts to the optimal height for any material, ensuring sharp, precise results without manual effortideal for smooth, efficient engraving every time.
Exceptional Cutting PowerThe Falcon2 Pro S 40W laser engraver boasts a powerful 40W laser module capable of cutting through 20mm basswood, 30mm black acrylic, and even thin metal sheets up to 0.15mm stainless steel sheet, ensuring high efficiency and precision for various materials.
Falcon Design SpaceFalcon Design Space is easy to use, free, and powerful, and the Falcon2 Pro S also can be used with popular engraving software such as LaserGRBL and LightBurn. It supports Windows and Mac OS systems.
FDA SafetyWith a 360° visual enclosed design, the Falcon2 Pro S laser engraving machine not only giving you a clean and quiet working environment, but also allowing you observe the processing from any angle and protact your eyes from laser radiation. The Laser Class 1, Laser Output Level: 40000mW

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8.8

xTool

xTool S1 40W Laser Module for xTool S1 Laser Engraver, Laser Module Laser Output 40W (40000mW), High Power Cutting Efficiency, 18mm Wood, One-Pass Cut

Main Highlights

Compatible with S1 Laser Engraver Only - Create like a professional with our 40W laser head, capable of reaching speeds up to a blazing 600mm/s. Effortlessly slice through materials up to 18mm thick in a single pass
Powerful Cutting Efficiency - The 40W can cut 18mm cherry wood, 15mm dark opaque acrylic, and 0.1mm stainless steel in one pass
Upgrade with Ease - Upgrade effortlessly by simply replacing the laser head, eliminating the need to purchase an additional machine. This maximizes cost and space savings for you

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8.6

Genmitsu

Genmitsu L8 Laser Engraver, 40W (40000mW) Power Output Laser Cutter, 40000mm/min All-in-one Laser Engraving Machine with Acrylic Enclosur, Air Assist Pump, Honeycomb, Camera, Safety Class 1

Main Highlights

Unmatched 40000mm/s Engraving Speed: Thanks to the latest Laser tech and sturdy machine structure, this machine reaches lightning-fast performance. Breaking the speed limit of traditional frame machines, this machine is as fast as most small Galvo laser machines, outpacing other diode laser machines on the market by more than 33%.
True 40W (40000mW) Optical Power Output: Feel the power of the Genmitsu L8s ability to cut through materials like 20mm Basswood Plywood, 12mm black acrylic, and even 0.05mm stainless steel in just one pass! With the included 30L/min smart air assist pump and built-in honeycomb, you can expect a super efficient and clear cut every time.
All-In-One Solution: Fully assembled and ready to go right out of the box with a 360° visual angle exhaust acrylic laser shield, the L8 is as convenient as it is versatile. With optional designed accessories like a smoke purifier and roller rotary, you can customize to fit your personal use scenario.
Say goodbye to multiple trials and errors: equipped with a Lightburn-compatible camera, positioning your project is a breeze. Plus, with a power indicator bar, fault reporting light, and airflow detection, this machine puts you in control.
Laser Safety Class 1 Certified: Features tilted automatic stop, active flame monitor buzzer, a full set of position protection limit switches, emergency stop, child safety lock, we got you back using this high power machine safely.

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8.3

Longer

Longer RAY5 New Upgrade Laser Engraver, Laser Cutter 40W Output Power, Engraving Speed Up to 24,000 mm/min, 3.5” Color Touch Screen, App Offline Control, DIY Engraver Tool for Metal/Glass/Wood

Main Highlights

40W Strong Cutting Ability: The Longer Ray5 features a powerful 40W optical output laser module equipped with advanced laser enhancement technology, significantly boosting its cutting capacity. It can cut 0.78" (20mm) wood and 1.18" (30mm) black acrylic in a single pass. Additionally, it can precisely cut 0.006" (0.15mm) stainless steel.
24,000 mm/min Ultra-Fast Engraving Speed: With advanced dual-beam technology, this laser engraver achieves up to 24,000 mm/min, delivering high efficiency for faster project completion without compromising on engraving precision.
More detailed and Multi-Color Engraving: RAY5 40W laser engraver with a newly upgraded LONGER Self-Developed 32-bit chipsets motherboard works more smoothly and stable. The advanced built-in 256-bit color scale with 0.08 * 0.1mm ultra-fine laser focus area achieves a finer engraving result and a higher contrast effect. And an air-assisted interface is reserved, which can be easily matched with various air pumps, and more clean surfaces.
Ultra Efficiency & Multi-Machine Control Supports 7×24 hours of continuous operation and allows one device to control multiple engraving machines at the same time, greatly improving efficiency and reducing your waiting time.
Comprehensive Safety Protection - This laser engraving machine is equipped with multiple safety features, including protective glasses, a move protection design, thermal protection, and an Emergency Stop Device. These ensure that the machine automatically shuts down in case of abnormal movement, overheating, or emergencies, offering you complete peace of mind during operation.
Precision and Quality Enhancement: The RAY5 40W includes an air-assist pump, controlled by the lightburn software, to enhance precision and quality when cutting. Say goodbye to manual adjustments and hello to effortless perfection.
Offline Connection & Wide Compatibility - This engraving machine supports 4 connection modes: USB/TF Card/WiFi/APP, and supports offline operation, allowing you to use RAY5 anywhere, anytime. It is compatible with professional engraving software such as LaserBurn(free), LaserGRBL(free), LightBurn(paid), etc.

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8.1

QFLONGER

Longer B1 40W Laser Engraver, 48000mW Output Laser Cutter Machine with Auto Air Assist, Engraving Area 17.72"x17.32", DIY Laser Engraver for Wood and Metal，Engraving Speed of 36000 mm/min

Main Highlights

Top Engraving and Cutting CapacityThe laser module of Laser B1 40w consists of eight 6000mW lasers Diode Lasers, providing cutting capabilities comparable to an industrial CNC cutting machine. It can Cutting 20mm plywood, 25mm paulownia wood, 10mm acrylic at once, can cut 40mm plywood, 50mm acrylic board multiple times, cut 0.15mm stainless steel board With a Laser B1 40w, you can experience the power of enhanced cutting ability, making it the creative ideal choice for your needs.laser class ii
High-Speed PerformanceThe laser cutter features an astonishing cutting speed of 36,000 millimeters per minute. This exceptional speed allows for rapid completion of cutting tasks, significantly increasing productivity. With a large working area of 450 x 440 millimeters, the laser cutter provides 23.75% more space compared to its competitors. This ample space allows for handling larger-sized materials and accommodating a variety of cutting projects.Whether it's personal gift making or small businesses, they can have the best performance.
Colorful EngravingThe B1 40W laser engraving machine is capable of directly engraving colorful patterns on mirrored stainless steel. With its outstanding cutting ability and high-precision engraving function, this device allows you to achieve a higher level of artistry and present more realistic and lifelike artwork.Present your colorful imagination.
Precision and Quality EnhancementThe Laser includes an air-assist pump, controlled by the lightburn software, to enhance precision and quality when cutting. Say goodbye to manual adjustments and hello to effortless perfection.
Advanced Safety FeaturesYour safety is our top priority. The Laser B1 is equipped with eight major safety features, including Move/Flame/Offline/Motionless/Security Lock/Eye Protection/Emergency Stop/Zero Reset. Work with peace of mind, knowing that your well-being is safeguarded.So as your personal safety.
Easy Installation & Professional SupportWith the tools and accessories provided and detailed product installation and user guide to refer to, the B1 40W laser cutting machine is easy to assemble. We also provide lifetime technical support and 24-hour professional customer service. If you have any questions, please feel free to contact Longer's customer support team.

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8.1

Cloudray

Cloudray 40W Laser Tube 720mm Dia.50mm, CO2 Laser Engraver Tube 45W, Cable Preconnected with Coating,40 Watt CO2 Tube With Metal Head (CR35 35-45W)

Main Highlights

Powerful Laser Tube: CR35 40w laser tube max 45W, Length 720mm Outer Dia.50mm.Before ordering, pls confirm the Diameter and Length of the co2 tube,great replacement for the same power or same length 40w co2 laser tube (Pls make sure your machine has enough installation space, all spaces should be slightly larger than laser tube's size).
After Sales: We are committed to providing superior service to our customers. If any issues arise within 4 months of receiving the laser tube (excluding man-made damage), please provide us with the laser tube serial number and proof of the problem via photo or video. Upon verification, we will promptly send you a new cloudray tube.
Quality Assurance: Cloudray CO2 laser tube are coated with nano gold catalyst ,the output laser is the TEM00 mode, which has high quality beam spot concentration, high energy density as well as good and stable spot, making laser machine with better performance.Apply unique glass metal sealing technology, and ensure a longer service life of the CO2 laser tube.
Installed Easily: For your convenience, cloudray tube have been pre-connected the high voltage end and low voltage port, along with the high voltage connector, simplifying the installation process of your 40 watt laser.If you require any assistance of c02 laser tube , please don't hesitate to reach out to us via Amazon.
Attention: Each Cloudray laser tube undergoes thorough testing before shipping, and we take care to provide secure packaging for safe delivery. It's important to note that CO2 laser tubes are consumable items, and prolonged storage may result in power attenuation. Therefore, we recommend purchasing the laser tube when you are ready to use it, ensuring optimal performance.

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Our Best Overall Choice

Best Choice

9.7

Mecpow

Mecpow X4 Pro 40W/20W Laser Engraver with Air Assist, Enclosed Laser Cutter with Camera and Led Lights, 30000mm/min Speed Laser Engraving Machine with Auto Fan for Metal and Wood, Acrylic,etc.

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

One Laser, Two Powers: The laser module fluctuation switch can quickly switch between 40W and 20W to meet different processing needs, no need to change the laser module again. 20W spot 0.08*0.1mm is more fine and suitable for engraving; 40W spot 0.1*0.15mm is more suitable for cutting, which can cut 25mm wood plate-30mm black acrylic-0.15mm black stainless steel plate;
Efficient & Precise: X4 Pro-40W supports high speed engraving mode, working speed is faster, up to 30000mm/min. High speed work while the body is stable, bringing perfect engraving effect. It also supports precision mode for more accurate cutting.
Precise Positioning Built-In Camera: visual-assisted precise positioning and accurate alignment to realize full-frame function. Spacious interior for unlimited creativity. Precise positioning / engraving position control / image tracking / batch engraving / HD video recording meets all needs.
Automatic Control Air System: 30L large capacity air pump, automatic control air pump switch according to software (long life, infinitely adjustable). The laser protection enclosure is also equipped with a highly efficient exhaust system, which can effectively filter and discharge the smoke and dust generated during the operation of the engraving machine, preventing combustion and creating a safer and more favorable environment for engraving in the enclosure.
Comprehensive Safety Protection: The Mecpow X4 Pro-40W has an integrated auto-stop function that will automatically stop work when the protective cover is opened. The engraver is also equipped with a flame sensor, hidden X/Y-axis 4-way limit switch, tilt sensor, safety child lock and emergency stop button, which fully consider the user's safety and avoid accidents. Class 1 certified laser cutter and engraver, perfect for beginners and professionals.
3 Types Of Connection Operation: support WiFi, USB and control panel offline operation: just insert the TF card, no need to connect to the computer, you can precisely position and engrave through the control panel on the body; connect to the engraving software through the machine's WIFI to realize offline engraving; connect to the computer through USB (compatible with Lightburn, Lasergrbl software) to realize wired engraving.
Package Contents: 1 x Main Unit; 1 x Throat Hoop; 1 x Screwdriver; 1 x Exhaust Fan; 1 x Exhaust Pipe; 1 x Laser Module; 1 x Power Adapter; 1 x Metal Plate; 1 x Goggles; 1 x User Manual.

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