Laser Machine Lens Cleaner: The Right Way

The lens of the laser cutting machine is a relatively precise optical element, and its cleanliness directly affects the processing performance and quality of the laser cutting machine. Laser machine lens cleaner is important to ensure the normal operation of laser equipment and extend its service life.

The Importance of Laser Machine Lens Cleaner

Since the optical lens in the laser system is a consumable, it is very necessary to regularly maintain the focusing lens. In order to extend the service life and reduce the cost of use as much as possible, when using the laser machine lens cleaner, it is necessary to strictly follow this specification to clean the lens. During the replacement process, the placement, inspection, and installation of the optical lens should be paid attention to prevent the lens from damage and contamination. After a new lens is installed, it should be cleaned regularly.

Laser Machine Lens Cleaning Operation Specification

When the laser cuts the material, a large amount of gas and splashes will be released on the working surface, which will damage the lens. When contaminants fall on the surface of the lens, they will absorb energy from the laser beam, resulting in a thermal lens effect. If the lens has not yet formed thermal stress, the operator can disassemble it and clean it with a laser machine lens cleaner. During the installation and cleaning of the lens, any sticky matter, even oil droplets from fingernails, will increase the absorption rate of the lens and reduce its service life.

Precautions

• Remove the focusing lens from the frame: loosen the fastening screws, and never install the lens with bare fingers. Wear finger cots or rubber gloves.
• Do not use sharp instruments to avoid scratching the lens surface.
• Do not touch the film layer when taking the lens, but hold the edge of the lens.
• The lens should be placed in a dry and tidy place for inspection and cleaning. A good workbench surface should have several layers of cleaning paper towels and several sheets of lens cleaning tissue.
• Users should avoid talking above the lens and keep food, drinks and other potential contaminants away from the working environment.

Correct Steps for Cleaning Laser Lenses

Cleaning of focusing lenses

• Be careful not to use too much force when disassembling and assembling, and do not collide with hard objects. Sufficient air pressure must be ensured when the equipment is working.
• The cleaning principle of the lens is to avoid cleaning if there is no pollution, and to clean it in time if there is pollution. When cleaning the lens, use a laboratory-grade paper soft cotton ball, dip it in an appropriate amount of laser machine lens cleaner such as acetone or high-purity alcohol, and gently wipe it clockwise from the center of the lens to the edge;
• If necessary, both sides of the lens need to be cleaned, and be careful and meticulous when wiping.

Cleaning of reflector lenses

• Remove the lens from the frame, with the mirror surface facing up, and place the lens paper on the mirror surface;
• Drop a few drops of acetone on the lens paper, and gently pull the lens paper across the mirror surface, repeat the above process until the mirror surface is clean, without dirt and residues left on the mirror surface, and then install the lens into the mirror seat;
• If a molybdenum mirror is used as a reflector, because it cannot be coated and can be used directly after polishing, it can be cleaned with water (soap water or water containing detergent). However, lenses with coatings on other surfaces cannot be cleaned with water, because many coatings dissolve in water and the lenses will be damaged.

Cleaning of the lens

• Bend the lens paper into several folds, soak it with a few drops of analytical pure acetone, and gently wipe the lens surface with the soaked lens paper. Be careful not to press the lens with your fingers. Repeat several times until the lens surface is clean and there is no dirt or residual traces left on the mirror surface;
• Blow dry with dry air; if necessary, roll the lens paper moistened with a few drops of acetone into a rod and gently wipe the lens surface to remove heavy dirt drops;
• It should be noted that acetone easily absorbs moisture and water from the air to pollute the acetone itself, so the acetone bottle should be tightly covered, and the remaining acetone liquid after cleaning should never be poured back into a new acetone bottle.

Summary

By following the above steps and precautions, you can use laser machine lens cleaner to effectively clean the lens and ensure the best performance and service life of the equipment.

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