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How to Choose the Right ACF Low-Pressure Blasting Machines
Low-pressure blasting is particularly useful when surfaces need to be treated in a controlled manner with minimal material removal. However, low operating pressure alone is not the decisive factor. The abrasive media, grit size, nozzle, distance, angle of impact, and pressure must all be coordinated to suit the substrate. The ACF series covers a wide range of options for this purpose, from compact, mobile units to complete systems with integrated compressed-air treatment.
Typical Applications
✔ Historic Preservation and Restoration
✔ Facades, natural stone, and brick
✔ Wooden surfaces and structural components
✔ Graffiti and coating removal
✔ Controlled cleaning of metallic surfaces
✔ Wet blasting applications with TAG systems
Working pressure is only one part of the setup
Lower pressure reduces the impact energy but does not replace the selection of an appropriate process. For sensitive surfaces, start with a low setting and evaluate the result on an inconspicuous test area. Subsequently, the pressure, abrasive flow rate, and working distance can be adjusted in stages.
Equipment Size and Features
Compact units such as the Colibri and Topolino are designed for mobility. The Calao, as well as the SL and SR series, offer larger tanks and various equipment configurations. Complete systems with an integrated refrigerated air dryer can be particularly advantageous when using fine abrasives, because dry compressed air promotes more uniform abrasive transport.
TAG for Wet Low-Pressure Blasting
TAG systems combine low-pressure blasting with water injection and are particularly suitable for cleaning and anti-graffiti applications. The addition of water can reduce dust generation and adapt the process to sensitive surfaces.
Here’s what you should keep in mind
✔ Sensitivity and hardness of the substrate
✔ Desired cleaning or removal result
✔ Appropriate abrasive media and grain size
✔ Pressure range and nozzle configuration
✔ Required air volume of the compressor
✔ Dry compressed air for fine abrasives
FAQ
Is low-pressure blasting automatically gentle?
No. Even at low pressure, unsuitable abrasive media, the wrong grit size, or an operating distance that is too close can alter a surface. A test area is recommended for sensitive materials.
Which ACF device is suitable for mobile work?
The compact Colibri and Topolino series are particularly portable. The specific model chosen also depends on the desired blasting time, air consumption, and application.
Why is dry compressed air important?
Moisture can contribute to uneven material flow and cloggings, particularly with fine abrasives. Proper compressed-air treatment improves process stability.
Can a low-pressure blasting machine also operate at higher pressures?
Depending on the model, ACF devices feature a wide range of adjustable pressure settings. The technical specifications of the respective model are decisive.
Select the machine and compressor together
Information regarding the surface, desired result, abrasive media, operating pressure, and available compressed air supply will help ensure proper selection.