Parameter
Focusing Lens
| Model | D20*T4.5-F150 (Welding),D20*T4.5-F800 (Cleaning) |
| Lens material | High-purity optical quartz |
| Applicable equipment | Handheld laser welding machine |
| Main function | Laser focusing |
| Operating environment | Laser welding, laser cleaning, laser cutting |
Product Overview
The focusing lens is one of the most crucial optical components within the laser welding head. Its main function is to precisely focus the laser beam onto the surface of the workpiece, concentrating the laser energy in a very small area, thereby achieving efficient and stable welding processing.
The performance of the focusing lens directly determines the weld penetration depth, weld width, welding speed, and overall processing quality of laser welding. During the laser welding process, the focusing lens needs to endure high-power laser energy and complex working environments for a long time, so its quality and condition are crucial for the operation of the equipment.
It is widely applicable to welding processing of stainless steel, carbon steel, galvanized sheet, aluminum alloy, copper materials, etc., and can meet the application requirements of industries such as sheet metal manufacturing, elevator industry, kitchen equipment, mechanical manufacturing, automotive parts, and metal furniture.
Suggested replacement criteria:
- Lens burn
- Lens crack
- Coating detachment
- Significant decrease in light transmittance
- Continuous decline in welding quality

Product advantages and after-sales Guarantee
Performance advantages:
- High light transmittance design: Utilizing high-quality optical quartz substrate and precise coating technology, it ensures efficient transmission of laser energy and enhances welding efficiency.
- High focusing accuracy: The laser beam is focused stably, enabling deeper melting depth and more uniform weld formation.
- Excellent high-temperature performance: Suitable for high-power continuous welding environments, reducing the risk of thermal damage.
- Stable welding quality: Effectively reduces weld defects, improving product consistency and yield.
- Longens equipment service life: The high-quality focusing lens can reduce optical system loss, lower maintenance frequency and overall usage cost.

After sales guarantee: Provide professional selection support and technical consultation services.Support lens model confirmation, installation guidance and maintenance suggestions.Regular models are in long-term stock, with quick delivery to meet customers' continuous production needs.Professional after-sales team provides online technical support to assist customers in quickly resolving maintenance and consumable replacement issues, ensuring the long-term stable operation of the equipment.
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