Pulsed Fiber Laser Welding System
Pulse laser welding machines utilize high-energy pulsed lasers as heat sources. By precisely controlling the energy, width, and frequency of individual pulses, they achieve high-precision, low-heat-input welding of materials. The working principle involves directing laser energy at extremely high peak power onto the metal surface in extremely short pulses (millisecond/microsecond level), causing the material to melt instantly and rapidly cool and solidify, forming high-quality weld points or continuous weld seams. This technology excels at addressing welding challenges in micro-scale components. Its minimal heat-affected zone effectively prevents workpiece deformation, burn-through, and grain coarsening, ensuring structural integrity and sealing. It is ideally suited for precision welding applications demanding extreme heat sensitivity and high standards, such as lithium battery tabs, medical devices, electronic components, jewelry, and precision sensors.

Our Advantages
1. Small size, High power
Volume less than 0.25M2, peak power can reach 750W
The optical scheme and control technology lead the country, achieving low energy consumption, high power, and high efficiency.
2. Efficient cooling, industry benchmark water-cooled heat dissipation
High quality water-cooled plate "aerospace grade" cooling solution
Built in 0.4P chiller, creating low energy consumption, small size, and high reliability.
3. Uniform optical path technology achieves splash free welding effect
By using flat beam shaping technology to focus laser energy, the beam is soft and distributed in a U-shape, achieving high-quality welding.
4. Precise power control, smooth welding, perfect weld seam
Precise control of welding power, automatic calibration, power fluctuation not exceeding 1%, uniform brightness of laser beam, producing high-quality welding points with perfect pulse laser welding.
5. Welding process, simple and easy to use, efficient and stable
Through the intelligent operating system, users can quickly and conveniently select welding process parameters based on different materials and thicknesses, and beginners can also achieve high-quality and consistent welding.

Product Parameters

| Model | LH-QCW500W | LH-QCW750W | LH-QCW900W |
| Working mode | Modulation/Pulse | Modulation/Pulse | Modulation/Pulse |
| Pulse width range | 0.2-50ms | 0.2-50ms | 0.2-50ms |
| Modulation frequency | 50~20000Hz | 50~20000Hz | 50~20000Hz |
| Center wavelength | 1080nm | 1080nm | 1080nm |
| Power adjustment range | 10~100% | 10~100% | 10~100% |
| Maximum pulse energy | 25J | 32J | 45J |
| Output cable length | 3-6m(Customizable) | 3-6m(Customizable) | 3-6m(Customizable) |
| Interface type | QBH Water cooling | QBH Water cooling | QBH Water cooling |
| Working voltage | AC220V±5%,50Hz/60Hz | AC220V±5%,50Hz/60Hz | AC220V±5%,50Hz/60Hz |
| Max. power consumption | <800W | <1000W | <1500W |
| Weights | <57kg | <67kg | <72kg |
| Environmental temperature range | 10~50℃ | 10~50℃ | 10~50℃ |
| Storage temperature | -10~60℃ | -10~60℃ | -10~60℃ |
| Environmental humidity range | 30~70℃ | 30~70℃ | 30~70℃ |
| Cooling method | Water cooling /Air cooling | Water cooling /Air cooling | Water cooling /Air cooling |
| Welding depth | 0.1-2mm | 0.1-2.5mm | 0.1-3mm |
Application Areas
Widely applicable, able to meet the needs of various scenarios, saving time and manpower

Company Honors
Lihe laser's main products including handheld laser welding machines, laser cleaning machines, and laser marking machines are all CE-certified.

FAQ
1. Are you a laser welders factory ?
Yes. We are a laser welders factory located in Chengdu City Sichuan Province china.We have a design and development team to provide customized services for you
2.How long is the warranty period?
Whole machine warranty period is 1 year, laser source 2 years. If there is any problem during the period, we will solve it as soon as possible.
3.How thick can 1500w-3000W be welded
1-8mm thick metal materials.
4.Is there a wire feeder?
We have a wire feeder to choose from. If you are interested, you can contact us and provide your email address.We will send more detailed pictures to your email.
5.Can aluminum and galvanized steel be welded?
Yes, it can.
6.Packaging
All our machines are packed in wooden boxes.
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