HEROLASER
Laser Protective Lens
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The Herolaser laser protective lens set of high quality workmanship and is suitable for hand-held laser welding torches | laser welders with a maximum power of 2,000 watts. The glass lens set is perfectly matched to the laser welder gun, but is also suitable for fiber laser foreign brands with technical match. The professional accessories for handheld laser welders are ideal for professional use in welding, cutting (CUT) and cleaning (CLEAN) in industry, crafts and DIY.
Dampen a dust-free cloth with alcohol and gently wipe around the protective lens. The purpose of this step is to prevent dust from entering the cavity during disassembly.
Cleaning Hands:
Clean hands with soap or detergent and wear lightweight, clean white gloves. Avoid any part of the hands touching the lens. When removing the lens, handle it from the side.
Disassembly:
1. In a relatively dust-free environment, loosen the screws of the protective lens drawer and remove the protective lens drawer assembly.
2. Take out the lens retaining ring (with the white sliding ring facing up).
3. Remove the protective lens and replace it with a new one. The protective lens is a flat lens that can be detached by pressing it to separate it from the sealing ring. When installing the lens, place it first and then press the sealing ring tightly. If there is dust on the surface of the protective lens, use a dust-free cloth or lint-free cotton swab with a small amount of non-water-based alcohol to wipe the lens in one direction.
4. Once the lens is placed in the protective lens holder, press the lens retaining ring (with the white sliding ring facing up) onto the lens. At this point, the protective lens should be pressed into the groove of the lens retaining ring.
5. Insert the entire protective lens drawer assembly back into the handheld welding head and tighten the screws.
1064nm Protection Lens
1064nm transmittance enhancement film with a high damage threshold (> 15J/cm2) coated on the protective lens can effectively increase the transmittance of the lens, reduce energy loss and improve the quality of the processed product. It is widely used in laser cutting, laser welding machine and other laser equipment.
Why the Protective Lens Always Burns Out?
The protective lenses of laser welding machines are consumables and need to be regularly replaced. However, factors such as welding processes, welding techniques, and settings can cause damage, and anomalies in laser output from individual lasers can also lead to frequent burning of protective lenses in laser welding machines. Once the laser protective lens is damaged, work should be stopped immediately and need to replace protective lens for laser welding. Here are methods to avoid burning the protective lens:
1. Check if the auxiliary gas is pure and if the pressure meets the standards. In cases where air is used, check the quality of compressed air.
2. Check if there is any misalignment in the optical path during laser emission, ensuring that other lenses are not damaged during operation.
3. Check if the nozzle aperture is appropriate, avoiding oversized apertures.
4. Check if the air blowing timing configuration is reasonable, ensuring that the software settings are correct.
Common specifications for protective lenses in fiber laser welding machines include diameters (in mm): 50*2, 55*1.5, 78*3, 108*4, 133*5, 133.5*4, and 134*3. The wavelength for these lenses is 1064nm.
