Introducció
The NEJE E40 is a professional fixed-focus laser module designed for cutting and engraving. It features 11W+ optical output power from two beams and includes a built-in high-pressure air assist system. Optimized for cutting stability and efficiency, it can also be used for engraving. The E40 is more focused on cutting stability, heavy-duty design, and easier to use air assist, with more stable output power for cutting. It offers good cutting efficiency, capable of cleanly cutting 4mm plywood at 300mm/min. NEJE has optimized the optical characteristics in the XY axis direction, ensuring balanced XY axis cutting, making it more suitable for cutting. When the air nozzle is removed, the E40 can also be directly used for engraving without air assistance, and its engraving ability is very close to the A40640 module.
Vídeo: Acabatview of the NEJE E40 Laser Module's capabilities, demonstrating cutting and engraving on various materials.
Especificacions
| Característica | Detall |
|---|---|
| Mòdul | NEJE E40 |
| Focus | 0.06x0.06mm |
| Mètode d'enfocament | Fixed (3mm from the radiator) |
| Potència òptica | Pulse 11W+, CW 10W+ |
| Longitud d'ona | 450 nm |
| Pes | 280 g |
| Mida del mòdul | 40x48x130 mm |
| Entrada | DC 12V 4A |
| Interfície | 4pin PH2.0 + (2pin DC12v extra power) |
| Compatible amb | NEJE 3 Max, NEJE 3 Pro, NEJE 2s Max, NEJE 2s Plus, etc. |
| Control de potència | PWM Power Modulation |
| Ventilador | Double Ball High Life Fan |
| Condueix | NEJE Smart Quiet Drive, Built-in static elimination technology |
| Protecció contra sobretensions | Sí |
| Smart Feedback | Sí |
| Feedback de temperatura | Sí |
| Control de temperatura | 45℃ |
| Air Pump Requirement | 0.5-1.5mpa clean air |
| Interfície d'aire | 4mm PVC trachea |
| Protective Window Lens | Yes (withstand 1000℃) |
| Certificació | CE |
| Origen | Xina continental |

Image: Detailed specifications for the NEJE E40 Laser Module.
Contingut del paquet
- 1 x NEJE E40 laser module (Built-in high pressure air nozzle)
- 1 x Laser module height adjuster
- 1 x 4 pin cable (30cm)
- 1 x 2pin yellow and black signal line + 3pin input line
- 1 x NEJE digital PWM temperature test / switch / interface adapter board
- 1 x NEJE test / switch / interface adapter board
- 1 x 2.5mm L-shaped wrench
- 1 x 5mm L-shaped wrench
- 1 x Tube (4mm x 2m)
- 1 x Connector (M8 to M4)

Image: Visual representation of the NEJE E40 Laser Module package contents.
Configuració
Instal·lació del mòdul
The NEJE E40 laser module is designed for compatibility with various laser engravers, 3D printers, and CNC machines. Securely mount the module onto your machine's carriage using appropriate brackets and fasteners. Ensure the module is stable and aligned correctly with the working surface.

Image: The NEJE E40 Laser Module installed on a compatible machine.

Imatge: Explosió view of the E40 module, showing internal components like the dual beam optical module, driver board, and cooling fan.
Connexions elèctriques
Connect the NEJE E40 laser module to your control board using the provided 4-pin PH2.0 cable. If your setup requires additional power, use the 2-pin DC12V extra power input. The module kit includes a NEJE digital PWM temperature test/switch/interface adapter board and a NEJE test/switch/interface adapter board to facilitate connections and testing.
The adapter board is used to work with the laser module. The green box is the output connect to NEJE laser module. The red box is the power and signal input (3 way, you only need to select one input). The yellow box is the test button. Press the button, the laser will be on at full power.

Image: Detailed wiring instructions for the adapter board, showing connections for PWM/TTL output, GND, and +12V power from your control board (e.g., GRBL).

Imatge: Primer pla view of the adapter board, highlighting PWM+, PWM-, Temperature, Switch, DC 12V, and TTL input (3.3V-12V).

Image: The NEJE E40 module connected to the adapter board, illustrating the complete electrical setup.
Air Assist Connection
Connect the provided 4mm PVC trachea to the air interface on the top of the laser module. This tube should then be connected to an external air pump capable of supplying 0.5-1.5mpa of clean air. Air assist is crucial for achieving clean cuts and reducing charring, especially when working with wood and other combustible materials.

Imatge: Interna view showing the built-in high-pressure metal nozzle for air assist, directing air to the cutting point.
Ajust del focus
The NEJE E40 module features a fixed focus. The optimal focal distance is 3mm from the radiator. Use the included laser module height adjuster to set the correct distance between the module and your material. For carving, the focus is typically set at the material surface. For cutting, the focus might be slightly below the surface to maximize penetration.

Image: Visual guide for setting the focus for carving (laser focused on surface) and cutting (laser focused slightly below surface) with a 5mm clearance.

Image: Instructions for installing the height adjuster, indicating a 106mm measurement from the top of the module to the bottom of the adjuster.
Instruccions de funcionament
Funcionament general
Once the module is installed and connected, you can begin your cutting or engraving projects. Use your machine's control software to load designs, set parameters (power, speed, passes), and initiate the laser process. Always perform small test cuts or engravings on scrap material to fine-tune settings before starting your main project.
For cutting, the E40 is optimized for stability and efficiency, capable of cutting 4mm plywood cleanly at 300mm/min. Ensure air assist is active for optimal results. For engraving, you may remove the air nozzle for direct engraving without air assistance, which can be beneficial for finer details. The engraving ability of the E40 is very close to the A40640 module.

Image: Comparison showing clean-cut edges with air assist (NEJE E40 Module) versus scorched edges without air assist (Other 80W Modules).
Compatibilitat de materials
The NEJE E40 laser module is versatile and can be used with a wide range of materials for both cutting and engraving:
- Wood-based: Plywood, Kraft paper, Solid wood, Veneer, Bamboo, MDF board, Corrugated board
- Plàstics: Plastic, Black acrylic, Film-coated transparent acrylic
- Fabrics & Leather: Leather, Non-woven fabric, Canvas art
- Metalls: Black anodized aluminum, Painted metal, Film-coated stainless steel
- Altres: Stamp rubber, Painted tile, Bone, Film-coated glass
Note: The effects on glass, transparent acrylic, stainless steel, and ceramics may require specific settings or additional processes to achieve desired results.

Imatge: Examples of materials compatible with the NEJE E40, including plywood, leather, plastic, and various metals.
Precaucions de seguretat
- Always wear appropriate laser safety glasses (included or equivalent) to protect your eyes from laser radiation.
- Ensure proper ventilation in your workspace to remove fumes and smoke generated during cutting and engraving.
- Never leave the laser module unattended during operation.
- Keep flammable materials away from the laser's working area.
- The protective window lens can withstand temperatures up to 1000℃, but regular inspection for damage or debris is recommended.
Manteniment
Neteja de lents
The laser module's lens is critical for performance. In high dust environments, or if there is improper air assist, the lens and internal structure can be damaged. Regularly inspect and clean the protective lens to maintain optimal performance and prevent damage. Damage caused by improper maintenance may require replacement at the user's expense.
Manteniment del ventilador
The module is equipped with a Double Ball High Life Fan for cooling. Ensure the fan is kept clean and free from dust and debris to maintain effective cooling and prevent overheating. Blocked fans can lead to reduced performance and potential damage to the module.
Resolució de problemes
Problemes comuns
- El làser no dispara: Verify all electrical connections, including the 4-pin PH2.0 cable and any additional 12V power. Check the adapter board settings and ensure the test button is not inadvertently activated or stuck.
- Weak laser output: Confirm that the focus is correctly set at 3mm from the radiator. Inspect the lens for any dirt, dust, or damage. Ensure your power supply meets the DC 12V 4A requirement.
- Poor cutting/engraving quality: Re-check focus settings. Adjust laser power and speed parameters in your control software. For cutting, ensure the air assist is properly connected and providing the recommended pressure (0.5-1.5mpa clean air) to prevent charring and improve cut quality.
- Module overheating: Ensure the cooling fan is clean and operating without obstruction. Check the ambient temperature of your workspace. The module has an internal temperature control set at 45℃.
Suport
If you encounter a fault with your NEJE E40 laser module, please provide a video demonstrating the fault to the NEJE official store or the authorized customer service where you purchased the product. For unresolved issues or complaints, you can contact NEJE official support at service@nejetool.com for assistance.
Consells per a l'usuari
- The E40 module is highly compatible and works with various NEJE machines (NEJE 3 Max, NEJE 3 Pro, NEJE 2s Max, NEJE 2s Plus) as well as other laser engravers, 3D printers, and CNC machines.
- For optimal cutting results, especially with thicker materials like plywood, always ensure the air assist is active. This helps to achieve clean edges, reduce charring, and improve overall cut quality.
- When engraving, if fine details are paramount and smoke/debris is minimal, consider temporarily removing the air nozzle. This can sometimes lead to sharper engraved lines.
- Many users have successfully integrated this module with various control boards, including those running GRBL. Refer to the adapter board instructions and wiring diagrams for proper setup.
Garantia i suport
The NEJE E40 Laser Module comes with a 2 any de garantia.
Reclamacions de garantia: To claim warranty service, you must provide the purchase authorization store and order number, module SN code, and a photo of the Warranty label. The warranty time is subject to your purchase record, which helps the NEJE factory determine the warranty period.
Exclusions: Damage caused by a high dust environment, high pressure, unauthorized disassembly, or improper air assist may void the warranty for free service. In such cases, material fees may be charged for repairs, and the cost of lens cleaning or replacement due to improper maintenance will be borne by the customer.
Fault Reporting: If you encounter a fault, please provide a video of the fault to the NEJE official store or authorized store customer service where you purchased the product.
General Inquiries/Complaints: If you feel your concerns are not being addressed, you can send a complaint to service@nejetool.com. NEJE official support aims to provide a satisfactory resolution.
Electronic Guide: NEJE.WIKI is the official electronic guide for software download and product use. Solutions to common problems may be found there.

Image: Warranty details, including conditions for service and contact information.




