Laser cleaning has become a widely used technology for surface layer removal in recent years. The quality of the resulting cleaning depends not only on the performance of the laser source itself, but also on the design and parameterization of the process head. The newly developed HT20U head, standard on the ROD 500, ROD 1000 and ROD 2000 models, brings several major innovations that address key requirements of industrial users.
Cooling system and performance stability
One of the main limitations of handheld laser cleaners is the overheating of optics and electronics during long-term operation. The HT20U features an improved water cooling system that allows for longer duty cycles without the risk of performance degradation. The actively cooled internal metal frame efficiently transfers heat away from key components. Compared to other heads on the market, where cooling is often handled by passive elements only, this system allows for longer continuous operation without degrading results.
Scanning speed and increased energy density
The cleaning speed depends on the ability of the laser head to guide the beam precisely and quickly over the surface. The HT20U uses an improved scanning mechanism that allows a higher beam movement frequency, which contributes to faster layer removal without compromising the quality of the result. At the same time, the optical system has been optimized to concentrate more energy per unit area, allowing the laser to interact more effectively with the material even at lower energy settings.
Ergonomics and operator safety
Handheld laser cleaning systems are often used in industrial environments where operator comfort and safety are essential. The HT20U delivers improved ergonomics based on even weight distribution and support for ambidextrous operation. This aspect is particularly crucial for longer work cycles where poor ergonomics can lead to fatigue and inaccurate handling. In addition, the centrally located emergency stop button (E-STOP) ensures immediate interruption of the process, which increases work safety.
Integrated display and advanced parameter monitoring
Unlike some competing models where controls and indications are located on the body of the laser unit, the HT20U has an integrated display directly on the head. This allows operators to monitor key process parameters such as power, scan speed or cooling system status in real time. Direct access to this data allows for quick setup optimization and more efficient process control.
Minimised contamination of optics and easier maintenance
Protecting the optical components is a critical factor in ensuring the long-term functionality of laser heads. The new head utilizes an improved airflow system that minimizes fouling of the protective glass, reducing the need for frequent maintenance. This system is particularly useful in applications where high levels of dust particles or loose material residues are generated.
Compatibility and upgrade options
The HT20U is a standard part of the ROD 500/1000/2000 model series for 2025, but is also compatible with models manufactured from 2022 onwards, allowing for easy upgrades without the need to replace the entire system. In the handheld laser cleaning market, it is not common for manufacturers to offer backward compatibility of heads, and this move provides customers with more flexible upgrade options.
Comparison with competing solutions
Compared to other heads available on the market, the HT20U offers several advantages:
- Better temperature control and longer duty cycles compared to passively cooled models.
- Higher energy density due to optimized optics.
- Integrated display for more precise process control.
- Two-handed operation for improved comfort.
- Improved optics protection for reduced maintenance and longer component life..
Competitors often offer heads with lower energy efficiency, less advanced cooling systems and no integrated displays, which can lead to higher failure rates and more maintenance.
Narran handheld laser cleaning systems
