Discover the essentials of pulsed laser cleaning
ezcad supply professional and honest service.
Including how to optimize settings for different materials
The importance of pulse energy
And maintaining your equipment
When it comes to laser cleaning
Higher power does not necessarily translate to better cleaning quality.
While increased power may speed up the cleaning process
Quality is often more crucial, especially in a laser cleaning business.
So, what constitutes good cleaning quality?
It's about effectively removing contaminants without damaging the underlying material.
Achieving this requires careful adjustment of several settings.
In the control panel of a laser cleaner, you can adjust various settings.
Pay special attention to the laser pulse frequency and width, as these factors significantly influence cleaning effectiveness.
Higher Frequency:
This setting allows the laser to penetrate tougher and thicker contaminants, such as rust and oxide films on metal.
Higher Width:
A wider pulse helps protect the base material, as it emits energy for a longer duration.
You might wonder if using both high frequency and width will ensure efficient cleaning without risking damage to the base material.
Unfortunately, these two settings are closely related
Typically, only one can be adjusted higher at a time.
Thus, you must choose based on your specific cleaning requirements.
Delicate Materials
Such as stripping paint from wood or cleaning paper
Prioritize lower frequency and higher width.
This combination minimizes heat exposure to the cleaning surface
Safeguarding the underlying material from excessive heat
While still achieving effective cleaning.
Tough Materials
Conversely, when dealing with tough or thick materials, like removing heavy rust from metal or thermal barrier coatings
Opt for higher frequency and lower width.
This setting enables more pulses per second, with each pulse being short and intense
Effectively removing even the most stubborn contaminants.
For a more technical approach to laser cleaning, consider the concept of pulse energy.
In laser cleaning, two energy thresholds are crucial: the Ablation Threshold and the Damage Threshold.
This is the energy level at which the pulse can heat and evaporate the contaminant WITHOUT harming the base material.
This is the point at which the pulse energy can & will cause damage to the base material.
Ideally, the pulse energy used in laser cleaning should exceed the ablation threshold but stay below the damage threshold.
Single-mode lasers focus the energy like a needle
Making them powerful enough to clean most contaminants easily.
However, without proper adjustment, they can also damage the underlying material.
Multi-mode lasers spread the energy over a larger area
Making them gentler and more suitable for lighter cleaning tasks
Such as removing thin rust, oil, or carbon deposits.
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This mode is preferable when it’s critical to avoid damaging the base material
As in cleaning rubber molds or stripping wood.
If you're unsure about which settings to use for specific cleaning tasks, don’t hesitate to reach out for help!
Upon purchasing a laser cleaner, you will receive pre-stored settings tested for common materials.
With a bit of fine-tuning, you should be able to handle 90% of cleaning applications.
For the remaining 10%, feel free to contact us via or , and our technicians will be ready to assist you.
You might wonder why you shouldn't just opt for a Continuous Wave (CW) laser cleaner instead of a pulsed laser cleaner.
For one, effective laser cleaning of aluminum is best achieved with a pulsed laser, as it allows precise control over heat output,
Unlike a CW laser, which operates like a flamethrower with a stable, continuous beam.
CW lasers are more suitable for large-scale heavy cleaning tasks.
Regarding maintenance, both pulsed and CW laser cleaners require significantly less upkeep
Compared to traditional cleaning methods like sandblasting or dry ice blasting.
CW lasers typically have fewer component failures when used correctly.
However, since pulsed laser cleaners utilize more complex technology, they may need a bit more care.
With this information on pulsed and CW laser cleaners, you can make informed decisions about your cleaning needs.
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For more tips and tricks on laser cleaning, check out the articles on our website, where you'll find field-tested resources to assist you further.
The pulsed fiber laser featuring high precision and no heat affection area usually can reach an excellent cleaning effect even if under a low power supply.
Due to the noncontinuous laser output and high peak laser power,
This pulsed laser cleaner is more energy-saving and suitable for fine parts cleaning.
The fiber laser source has premium stability and reliability, with the adjustable pulsed laser, is flexible and serviceable in rust removal, paint removal, stripping coating, and eliminating oxide and other contaminants.
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Laser cleaning refers to surface cleaning using a fiber optic laser. It is based on the same fiber optic laser sources used in laser metal cutters, laser markers, and engravers. Thus, a laser-cleaning machine is suitable for removing rust from metal surfaces.
The technical parameters of laser cleaning machines guarantee excellent results. When choosing equipment, consider your tasks and budget.
A galvanometric scanner is an essential component of laser cleaning equipment. Usually, it's a handheld gun that an operator holds with one or two hands, pointing it to the surface. The scanner helps focus the laser beam on the material surface, widen the laser beam, and give the light spot the desired shape.
A system of mirrors inside the scanner collects the rays of light and distributes them over the surface of the treated product. This technology allows you to clean relief surfaces and other complex shapes.
The laser-cleaning machine comes with an air or water cooling system. It is necessary to prevent a laser source and a scanner (if it is a water-cooled type) from overheating during operation.
The laser cleaning operation involves exposing a light beam to the surface. The laser beam reflects from the surface if no contaminations (such as rust) exist. If there is corrosion, it absorbs the beam. Because of the laser's thermal energy, the strength of metal oxide molecules that form the rust decreases. They collapse, detach from the metal, melt, and evaporate.
The main application of laser cleaning equipment is to remove contaminants from metal surfaces. This method removes rust, varnish, paint, organic substances, oils, soot, and other pollutants. The technology is also successfully used to clean plastic, stone, ceramic, and concrete.
With a laser-cleaning machine, you can process:
The main advantage of laser cleaning is that it is non-contact. The nozzle does not touch the treated surface. Thus, the processed material is not damaged. The laser beam evaporates contaminants only.
The main difference between laser and mechanical cleaning is non-contact treatment. Traditional cleaning methods can damage the product by sandblasting media or chemical solvents.
Let us specify the advantages of laser cleaning:
Operators can use laser equipment without experience or special training.
To ensure proper operation and extend the life of consumables, clean compressed air must be supplied, the lenses and mirrors in the galvanometer must be kept clean, and the water in the chiller must be changed regularly using distilled water.
The Continuous Wave laser cleaning is a modern, high-tech, high-speed method of cleaning surfaces. The laser cleaning equipment is ideal for all types of surfaces. It easily removes rust from metal products, layers of paint, varnish, and other coatings or deposits. The laser removes the grease, effects of oxidation, and carbon deposits. The speed of a continuous cleaning machine is several times faster than that of a pulsed laser. A wide range of settings allows laser cleaning in various fields. Operators can perform cleaning at any angle and in the most inaccessible places, enabling you to extend the life of structures of different types of metals. There are no consumables (sand and other abrasives) and no need for a workshop or metal cabinet. After cleaning, only the destroyed particles (dust) of the cleaned "foreign" layer remain. A special protective suit for the employee is not required while working with the equipment. No mechanical post-treatment after cleaning is needed either.
The Pulsed Wave hand-held laser cleaning machine is a new generation of high-tech equipment for cleaning metal surfaces without damaging or thermally deforming the base material. The pulsed laser removes almost all contaminants on metal products: rust, paintwork, oil products, oxide films, scale after welding, and carbon deposits. Pulsed laser cleaning can clean large areas. The main task is to remove the unwanted layer without damaging the base. This technology is especially true when cleaning thin metals since the machine does not expose the base to heat and, as a result, deformation. A big plus is the speed at which the positive outcome is immediately visible. The equipment does not make noise during operation. In addition to metal surfaces, it cleans adhesive and galvanized materials and products made of plaster and stone.
The 5-in-1 handheld laser welding machine provides high working speeds and perfect weld quality. This machine can perform the following operations: welding, cutting, cleaning, welding seam cleaning, and spot welding. It allows the joining of various metals with a 0.3 to 7mm thickness. The machine can weld carbon, low-alloy, high-tension, stainless steel, aluminum, and titanium alloys, plastics, and various dissimilar materials. It simplifies the welding of workpieces, even with an inexperienced operator.
Different types of welding joints are available: butt joint, lap joint, tee joint, edge joint, and corner joint. You can weld with the handheld laser machine without filler wire and connect any wire-feeding device. The main consumables are working gas like nitrogen or argon, nozzles, protection lenses, and mirrors. Thanks to the long fiber optics cable, operators can work at a distance from the machine.
The 3-in-1 handheld laser system has a universal laser head capable of cleaning, cutting, and welding metal. This machine offers substantial savings by purchasing one machine instead of three. The controller provides a library of different settings for joining various types of metals with a 0.3 to 7-mm thickness, simplifying the welding process. Laser welding technology allows welding together metals such as carbon steel, galvanized stainless steel, aluminum alloys, brass, and titanium. The kit includes a specific nozzle for each type of task, such as cleaning metals, butt welding, welding internal and external corners of welding with wire feed, and cutting thin sheet metal. Replacing the welding module with a cleaning scanner is easy without reconnecting the welding gun and optical fiber. Easy to use, no specific skills required.
SUP23T 4-in-1 handheld multifunctional laser is a new, super-great application in welding, surface cleaning, cutting, and weld cleaning. The product includes a handheld laser gun and control system with multiple safety alarms and emergency shut-off features. The system uses the SUP20T model as a basis. Compared with the previous generation, the controller has enhanced insulation, robust stability, easy maintenance, and other improvements. Also, the handheld device is more compact and lighter.
The system is compatible with various brands of fiber laser sources. It has an optimized optical and water-cooling design so that the laser head can work steadily for a long time at W/W. In cleaning mode, the laser beam width is up to 120mm.
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