NEJE 3 Plus A40640: Dual Beam Diode Laser Laser Engraver and Cutter

  • $399.00
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NEJE A40640 module is an zoom carving and cutting module specially designed to overcome high hardness materials and high-speed engraving, and it also has strong cutting ability. NEJE adopts NEJE's unique optical processing technology to compress the focus to 0.04x0.06mm and has 12W pulse Power, focus are clearer than ordinary 2 LD modules, there is no stray light interference on the edge, each pixel is powerful, it can directly and clearly engrave grayscale images on stainless steel and stone surfaces, as well as on wooden 3D images\ Plasma high-definition effect. Stronger energy density and clearer engraving focus than 4xLD laser module, can be said to be the king of engraving. The NEJE A40640 module is an zoom focus module, which can obtain a 20mm thickness cutting ability at a 55mm focus, and has excellent performance in cutting acrylic, wood board, fabric, balsa, corrugated paper, EPE and other materials. NEJE designed a metal quick-release air nozzle for the A40640 module, which can be compatible with cutting needs of different focal lengths. The latest lens has added a high-temperature window lens, which can effectively prevent water and smoke from damaging the lens. If you want to find a model that can A module that solves almost all your needs, A40640 is the best choice.


【Open operating platform】Just fit on a desktop with a width of 600mm, and the left side of the machine is not limited by the size of the material. It is suitable for processing large area materials. Under the protection of the MEMS vibration protection sensor, the engraving and cutting processes can be completed at the same time. The X-axis motion module is only 120g and is driven by a 40mm thick high-performance stepper motor, bringing a faster engraving experience than the gantry structure, 3400 x 5600 pixels, engraving accuracy: 0.075 mm dot pitch, 338 dots/inch. The whole machine function test requires only 4 screws to complete the installation.
【Top engraving performance】The laser beam is composed of two high-power laser diodes. Using NEJE's unique optical technology, the engraving is clearer than ordinary combined lasers. The minimum focus point reaches 0.04x0.06mm (A40640 module), 12W optical power pulse output, 11W constant power output, high energy density can instantly vaporize the engraving material, and achieve a plasma-level engraving experience. Built-in fast-response intelligent drive, stable current Control, temperature feedback, intelligently adjust fan cooling, and configure all-round static elimination technology. Safe and quiet to use.
【More clearer, Safer】 No stray light interference, clear texture, high energy density, lightweight design is the secret of A40640 becoming the king of engraving, A40640's excellent optical design, complex optical and safety drive design, everything is for more powerful \ clear Engraving and safe use. The motherboard has built-in MEMS protection. When the device is working, the MEMS gyroscope will automatically record the device status to prevent accidental touch.
【Portable professional control software】32-bit control system, the fastest speed can reach 200,000mm/min, supports LaserGRBL, Lightburn, NEJE software, NEJE APP (Android, iOS, ipadOS, macOS), you can change it by taking photos with your mobile phone or selecting images from the album To complete the work quickly, NEJE provides free software upgrade services.
【Perfect after-sales service]】10 years of technical precipitation makes the NEJE team confident to provide a 2-year free after-sales commitment. NEJE is also the only laser engraving company that has direct factory after-sales and establishes a complete after-sales process.


NEJE staff recommendation reasons:

If you want to purchase a device with the fastest engraving speed, the clearest engraving quality with strong cutting ability and automatic air assist and smoke control, this machine can meet your requirements.

Clearer of the engraving and cutting effect

The NEJE A40640 module is the benchmark for diode lasers. Since A40640 was released in 2020, as the inventor of the world's first diode laser module, its product performance cannot be surpassed so far. The mature and high-efficiency optical system design enables the output power to reach 10w -12w,  NEJE A40640 laser module has a minimum focus of 0.04mm and a maximum cutting thickness of 20mm. Combined with NEJE automatic air assist, in the multi-layer control mode of the lightburn software, you can Complete grayscale, 3D, high-quality cutting and other processes at one time. And the cutting angle is smaller, the cutting edge is more vertical and cleaner. The 204g lightweight design make the motion inertia smaller and the image clearer .

More reliable, The new laser uses a high temperature (1000℃) window glass to protect the lens, which effectively improves the service life of the lens.

Safer module design, NEJE has greatly enhanced the anti-static and surge design under the new control system. NEJE has passed the very severe test in the experiment, which has greatly improved the reliability of the NEJE control system. The new system does not require additional grounding to protect equipment.

Quiet design, NEJE A40640 module built-in NEJE unique intelligent drive design, so that the fan status can be automatically controlled.

The strongest diode engraving module, 12W pulse power in 0.04x0.06mm

NEJE A40640 module has ultra-high energy density at 30mm focus, which is beyond the reach of other imitators. It does not require air assist when carving wood with a depth of less than 1mm, and can completely vaporize the material through plasma effect. Ultra-high energy The density can also directly engrave grayscale image on stainless steel planes, which cannot be achieved by 4 x beam 20W diode lasers.

20mm max cutting depth

The adjustable focal length design enables the NEJE A40640 module to have a maximum cutting depth of 20mm, which is best used when making furniture and cutting EPE and other materials.

Hundreds of materials can be applied

The above are real works from NEJE fans. If you have any materials that you do not understand, you can contact our customer service.

10 years of laser technical precipitation

NEJE was established in 2013 and has accumulated millions of members, schools, small businesses, and personal DIY enthusiasts use NEJE equipment to create more possibilities every day.

Weak light and auto air assist in lightburn

NEJE optimizes GRBL firmware make the diode laser to have weak light in lightburn (GRBL mode) and adds automatic air assist and automatic smoke extraction system functions, eliminating tedious manual control.

Advanced mobile control system with OTA upgrade

Advanced 32-bit+BLE+MEMS new mobile control system, OTA software upgrade more functions and services.

NEJE optimizes the low-light experience in GRBL mode for diode lasers, and the low-light settings can be adjusted through the laserGRBL software.

Support repeated engraving, the position information will not be lost.

BLE-based wireless control, supports NEJE APP wireless control.

Built-in sensor protection, currently in NEJE mode, when the machine angle changes, the device will automatically stop working.

Wireless APP offline control

Wireless control function, turn on the phone, and complete a beautiful project in a few simple steps. The use efficiency is faster, and it does not take up the work computer.

The new NEJE V6.1.2 software supports area expansion, you can simply modify the length of the track to achieve area expansion, NEJE also provides the option of extended track.

The NEJE 3 control system has completed a very large upgrade, supporting OTA firmware and software upgrade services, NEJE has improved in the new GRBL firmware to adjust the low-light display under lighrburn and laserGRBL software and automatically control the air-assisted smoke extraction system. You can safely and stably upgrade to the latest GRBL firmware through NEJE software, When using the device for the first time, please open the NEJE software to update to the latest firmware.

About NEJE quality control and service!

Founded in 2013, NEJE is the inventor and innovation leader of diode laser engraving machines. After 9 years of continuous research and iteration, NEJE's laboratory and factory have become experts in the field of diode laser engraving machines. The diode engraving machine brand is the only manufacturer with its own optical laboratory, manufacturing plant, global warehousing service and complete after-sales process. Every progress of NEJE follows the user value first. Every mechanical equipment, control panel and module needs to go through the strict R&D process and factory quality control system of the NEJE laboratory, and all the automatic quality control that the NEJE factory has achieved ensures that every user can get reliable products and service commitments. NEJE never assembles spare parts to ensure that each equipment All have undergone complete testing, NEJE has served 1 million consumers in the past 9 years, better products and services are the key to success.


M7 relay expansion accessories, can be used to control AC or DC power supply smoke exhaust system, can also be used to control other circuits, used as M8, there are safety risks when operating high-voltage circuits, requiring professional operation; M8 valve expansion accessories, can be used To control the air compressor switch. Relay module, air valve module, door module need to be purchased separately, not included in the product list.


When do you need air assist?

Air-assisted engraving or cutting can only be used for engraving or cutting that produces more carbonized substances. Generally, the depth of engraving is less than 1mm, and the cutting of plywood less than 2mm does not require air assist. A small fan can be used to blow off the smoke generated by the engraving. Air assist is not recommended when engraving images, and adding air assist at this time will destroy image details.

What kind of air pump is suitable for cutting?

The main meaning of air assist is to blow off the carbonized material produced by cutting, and the general oxygener and electromagnetic inflator have almost no meaning. only the pressure of the oil pump and air compressor (0.4-1.5mPa) has the effect of blowing away the carbonized material. but it should be noted that the air of the oil pump contains oil and cannot be directly used for the air-assisted module of the closed cavity, otherwise the oil will contaminate the lens, resulting in power drop or damage to the lens. The air pressure of the air compressor can be used for a short time with the closed cavity, but When used for a long time, the water-containing gas will contaminate the lens, cause the power to drop, and even damage the lens.

How to add air assist on the A40640 laser module?

The NEJE A40640 module is an adjustable focus module. For the consistency of testing, the NEJE factory adjusts the module to 55mm focal length by default. This focal length is suitable for cutting thicker materials. This focal length is generally not commonly used. When you are suitable for the first use of the product, it is recommended to use a flat-head screw to adjust the focal length to about 30mm, which is 1-2mm away from the light baffle. This focal length has a very high focal power density and can directly engrave grayscale stainless steel images\ gray-black stone and other hard materials, NEJE A40640 can directly engrave 3D hardwood and other materials, and does not require air assistance, due to the high energy density design, A40640 can directly vaporize general wooden materials during the engraving and cutting process, so it is also unecessary to add air assist.


View Manual:



More DIYers are using it every day! 


Packing List

  • Laser engraving machine x1
  • A40640 Laser Module x1
  • 12V4A power supply x1
  • Manual x1
  • Goggles x1
  • (Data cable 1, wooden board 1, paper 5, pen 1, brush 1, focusing film 1, angle iron 4, alumina film 1, cable tie 3, nut 5, large hexagon wrench 1, small hexagon wrench 1, Open wrench 1)


1. Lasers are sensitive electronic components that may be damaged by interference from external factors, although all NEJE lasers are produced with electrostatic surge protection and aging resistance.
2. Laser head provides a 2-year warranty (after receiving the product).
3. Motherboard warranty for 2 years.
4. Machinery including motor assembly, 2-year warranty.
5. According to the video basis you provide, global free shipping for after-sales!


1. We ship to the address filled in your order. Please make sure your address is correct before payment.We do not assume the risk of loss or damage to the package arising from the rejection.

2. The delivery time is affected by your destination, logistics, and other factors. If you have any questions about logistics, please contact us.

3. In order to give customers a better shopping experience, we need to test the products from the warehouse before shipping, and we need to wait for the logistics company to pick up the goods after packaging. It takes about 3-5 days to process the order. If you have any questions about the order, please contact us immediately at, please do not raise any disputes, thank you for your understanding.

4.After shipping, you will receive a shipping email with the tracking number. Normally you can track your package at:

Note: From July 1, 2021, the EU will amend the relevant tax laws for products sold to EU member states. For products with a value of fewer than 150 Euros sent from China to EU countries, we will use IOSS for customs clearance. There is no need to pay taxes and fees during delivery, and customs clearance and delivery are faster. Orders sent from China to EU countries are worth more than 150 euros and are subject to import value-added tax and customs duties. This requires buyers to use their own VAT to clear customs and pay import VAT and customs duties. Shipments from EU countries are not subject to import VAT. This tax issue only applies to shipments from China to EU countries. For tax inquiries in other countries, please contact email:


We will provide each customer with the best service and reliable products, but sometimes there are unexpected or doubtful places. We believe that good communication can solve every problem happily, so please give up the order or leave a negative Contact us before giving feedback to resolve any issues.
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