High Power 24V PWM 450nm 40W Blue Diode Laser Module with Collimated Beam

BU-LASER offers this industrial-grade 450nm 40W blue diode laser module with collimated parallel beam. It adopts multi-chip combined laser diodes, high-precision glass collimating lens group, built-in 24V constant current PWM driver and dual-fan active air cooling system. The module delivers stable 40W continuous optical output with low beam divergence, consistent energy distribution and long-term power stability. It is widely used for laser curing, laser engraving, precision cutting, SLA 3D printing and galvanometer scanning processing equipment.

Key Product Features

1. 450nm Blue Wavelength with High Photon Energy

The 450nm ±5nm blue laser has excellent absorption efficiency for resin, plastic, wood, acrylic and non-ferrous metals, such as copper and aluminum.The narrow spectral linewidth reduces stray light, ensuring clean processing edges and uniform curing effect without material yellowing or carbonization.

2. Stable 40W High Optical Power

It provides real 40W CW optical power with 0–40W stepless power regulation. No power attenuation occurs under long-time heavy-duty work, maintaining consistent processing quality for mass production.

3. Collimated Low-Divergence Parallel Beam

Equipped with multi-element anti-reflection glass collimating lens group. The beam divergence is controlled below 0.2 degree. The beam has no central hot spot, and the energy distribution is even across the whole light field. The focused spot is less than 0.2mm, which meets the requirements of fine cutting and high-precision light curing.

4. 24V DC PWM Integrated Control for Easy Integration

Wide input voltage of DC 24V (22–26V), compatible with most industrial equipment power supply systems. It supports high-frequency PWM modulation with 0–100% duty cycle and fast signal response. Our design fully embeds the driving circuit inside the housing to deliver plug-and-play functionality without additional driver boards. We build full compatibility with galvanometers, controllers and CNC systems into the unit.

5. Efficient Air Cooling for Non-Stop Operation

Dual high-speed cooling fans match high-density aluminum fin heat sink. The heat generated by the laser diode is quickly dissipated under full 40W power. No water cooling system is needed, which saves installation space and eliminates risks such as water leakage and pipeline blockage. The module can work continuously and stably in an ambient temperature range of 0℃~50℃.

Core Specification:

Product Display:

Our Services :

Item	Parameter
Wavelength	375-405nm	425-488nm	515-520nm	635-670nm	780-980nm
Single Diode  Module Optical Power	20mW-3W	20mW-3W	10mW-1.6W	5mW-2.5W	5mW-75W
Multi Diodes Module Optical Power	3W-200W	6W-500W	1.6W-50W	2.5W-30W	75W-100W
Operating Voltage	3-5V/6V/ 12V/ 24V/ 30V/ 110V/ 220V/ 240V etc.
Spot Mode	Dot/ Line/ Cross/ Grid/ Muti-lines/ DOE etc.
Fan Angle Options of the Line Beam	5°/10°/15°/20°/25°/30°/45°/60°/90°/110°/130°/180° etc.
Optical Lens	Acrylic lenses, glass lenses, wave lenses, Powell lenses etc.
Dimension	4*8mm/ 6*10.5mm/12*15mm/9*21mm/16*66mm/ 33*33*55mm etc.
CDRH Class	class1/class2/class3A/class3B/class4