NEJE A40640 Laser Module Metel Nozzle CARVING AND CUTTING – 2 X BEAM – 12W OUTPUT – WIDELY APPLIED

NEJE A40640 Laser Moudle
Focus: 0.04×0.06mm
Focus method: adjustable ( Recommend 30-55mm )
Optical power: Pulse 12W+, CW 11W+, Use 80% power (9W+) when cutting for a long time.
Replaceable lens design: Yes, Added window protection lens to extend service life (high temperature resistance of 1000 degrees Celsius)
Stainless steel direct grayscale engraving: Yes
3D hardwood engraving: Yes
Maximum cutting thickness: 20mm
Wavelength: 450nm
Weight: 204g
Module Size: 40x50x85 mm
Input: DC 12V 4A
Interface: 4pin PH2.0
Compatible with: NEJE 3 Max, NEJE 3 Pro, NEJE 3 Plus, NEJE 2s Max, NEJE 2s Plus, etc…
Power control: PWM Power Modulation
Fan: double ball high life fan
Drive: NEJE smart quiet drive, built-in static elimination technology.
Surge protection: Yes
Smart feedback: Yes
Temperature feedback: Yes
Temperature control: 45℃
air pump: 0.5-1.5mpa clean air (Needle type air nozzle supports oily and water-containing air source, and sealed air nozzle can only use clean air pump)
Air interface: 4mm pvc trachea
Original registered brand: Yes
Warranty: 2 years

ABOUT AIR ASSIST

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.