Scotle Pulsed Laser Cleaning Machine FAQS

There is no fixed relationship between laser power and the maximum paint thickness that can be removed.

Higher power may improve production speed, but the actual result also depends on:

• Coating type and thickness
• Adhesion level
• Material color
• Substrate
• Pulse width
• Frequency
• Scanning pattern
• Operator technique

Cleaning efficiency varies significantly depending on the application. Rust, paint, oil, oxides, molds, wood coatings, and architectural surfaces require different processes.

To estimate productivity, please provide:

• Substrate material
• Contaminant type
• Layer thickness
• Required cleaning standard
• Working area
• Photos or samples

A sample test provides the most reliable cycle-time estimate.

Scanning patterns control how the laser spot moves, how wide an area it covers, and how energy is distributed. They directly affect cleaning speed, uniformity, heat input, and substrate protection.

• Line or rectangular patterns: Suitable for flat plates, pipe exteriors, and large-area rust or paint removal.
• Figure-eight or diamond patterns: Increase spot overlap and help produce a smoother finish with fewer cleaning stripes.
• Circular or spiral patterns: Useful for shafts, bearings, flanges, weld seams, and circular components.
• Dense, small patterns: Suitable for precision parts, molds, oxide films, and localized contamination.

A small, fast scanning pattern is generally used for delicate cleaning and thin oxide removal. A larger pattern improves area coverage, but power, frequency, pulse width, and scanning speed must still be adjusted according to the material.

Scanning spreads the laser energy over a larger area instead of concentrating it at one point.

This can reduce:

• Localized overheating
• Burning
• Pitting
• Discoloration
• Material distortion

It is especially useful for thin steel, aluminum, copper, molds, and heat-sensitive surfaces. Correct parameters and sample testing are still required.

Yes. We can provide initial parameter references for common applications.

However, there is no universal setting for every material. Final parameters should be confirmed through testing because the substrate, contamination, thickness, adhesion, field lens, laser-source mode, and required finish all affect the result.

Wet concrete can be cleaned, but efficiency may decrease.

A continuous supply of clean, dry protective gas should be used to prevent moisture and mist from contaminating the lens. Electrical safety, grounding, and site conditions must be evaluated before operating the machine in a wet environment.

Direct cleaning of heavily soaked wood is not recommended. Rapid moisture evaporation can cause:

• Cracking
• Charring
• Steam release
• Fire

If cleaning is necessary, allow the wood to dry whenever possible, reduce the laser power substantially, test a s