FREQUENTLY ASKED QUESTIONS

The sandblaster's air consumption depends exclusively on two factors: the diameter of the nozzle and the exerted pressure of the sandblaster.

The power of the compressor (expressed in HP or KW) is the most important aspect in the use of a sandblaster. Without the appropriate air supply, it is not possible to achieve results. Consider that each HP yields around 100 L/min of rendered air.

The use of sands for suctioning is inconvenient for several reasons. It has a low impact resistance, and therefore low productivity, high dust yield, and a heavy environmental impact.

Free jet sandblasting machines work on surfaces being treated, releasing the abrasive used directly into the environment. In contrast, suction blasters , usually composted of a blast cabinets or blast room, allow for the abrasive used to be collected in the recaptured debris.

There is a substantial difference. A reverse-pressure system, or an aspiration system, uses the Venturi principle which allows the sand to be suctioned into a container and mixed with compressed air. The reverse-pressure system pushes the air and abrasive down, projecting a mix of these substances as one solution; the resulting jet is far more powerful when compared to the Venturi system (for example, with the Sabix, Pressure Blaster).
In the sandblasting machine section, you will find our corresponding products, as well as others.

The only difference is the type of inert substance (abrasive material) that is used with the machine.  Bead blasting refers to treatment using glass, ceramic, steel, etc. types of microspheres. Sandblasting refers to treat using sharp-edged abrasives (sand, aluminum oxide, garnet, etc).

Fevi's current remote control systems allow sandblasters to be used even at distances greater than 30 m, guaranteeing three main operations: start, stop, and spray.

Hourly consumption depends on various factors. For a realistic calculation, it is necessary to know the diameter of the nozzle, exerted pressure, type of abrasive, type of surface (brick, wood, metal, hard stone, marble, etc.), and type of treatment (satin finishing, finishing, carving, restoration, stripping) Consumption can be anywhere from 10 kg/hour to beyond 200 kg/hour.

For free jet sandblasting, the user must protect his or her face, respiratory pathways, and wear a protective suit.
For suction blasting, eye and ear protection is sufficient.

Sandblasting becomes pollutive when the user does not consider the type of abrasive that should be used or the resulting dust during jobs. The primary concern is the resulting dust, which can be removed by using a humidifier or aerohydro blaster. In contrast, this problem does not exist in the case of suction blasting.

No truly eco-friendly form of sandblasting exists. "Eco-friendly" refers to a free jet form of use that respects the environment, both in terms of the type of inert substance used and the removal of generated dust.

Thanks to aerohydro sandblasting and humidifier systems, it is possible to carry out blasting without dust, guaranteeing the user the power to carry out treatments in public, historic centers, and outdoor environments.

Today, micro blasting is most frequently used in restoration projects. It is possible to restore almost any surface to its original condition using the appropriate media, inert substances, and calibrated exerted pressure in relation to the project.

With the use of glass, di ceramic, and steel microspheres the user can achieve a process that doesn't alter or create coarseness on surfaces. In summary, it is important to use a round-edged abrasive that doesn't remove the material.

There is no fixed distance that should be maintained from surfaces being treated. This can depend on various factors.

• Type of material being treated
• Type of desired results
• Type of inert substances
• Exerted pressure of sandblaster
• Diameter of nozzle

Practical example:
Sabix (free jet pressure sandblaster), 3 mm nozzle, 
4 bar pressure, 
garnet mineral abrasive, 
brick restoration: approximate distance of 10 cm.

The main are the following - each has a different purpose:

coriblast,
steel blast,
garblast,
quarzite,
microlux,
dust lux,
eco blast,
bic blast,
cerablast

Sandblasting is a surface treatment process that uses a high-speed jet of abrasive materials to clean, smooth, or shape a surface. It is often used to remove paint, rust, and other contaminants from metal surfaces and other materials.

Sandblasting is a mechanical method that utilizes a high-speed jet of abrasive material to clean, smooth, or prepare a surface. This process is particularly useful for removing oxides, paints, encrustations, and galvanic coatings, improving adhesion for further treatments.

Sandblasting machines can be mainly classified into three categories: • Pressure: Use a pressurized tank to push the abrasive at high speeds. • Suction: Use compressed air to suck and eject the abrasive. • Wet: Mix the abrasive with water to reduce dust produced during the process.

Common abrasive materials include: • Corundum: Used for metal surfaces, offering high abrasiveness and durability. • Glass Beads: Ideal for a smooth finish without damaging delicate surfaces. • Plastic Beads: Used for deburring thermoplastic materials and other light applications.

Dustless blasting combines the abrasive with water, drastically reducing the amount of dust produced. This method is ideal for working in sensitive areas and enhances operator safety by reducing preparation and cleanup time.

During sandblasting, it is essential to use: • Protective Helmets: To protect the face and respiratory system. • Air Supply Systems: Provide clean air to operators. • Protective Clothing: Gloves, suits, and shields to reduce exposure to abrasives. • Dust Containment and Filtration: To keep the work area safe and compliant with regulations.

No, dry blasting equipment and dry ice blasting equipment are designed differently. Dry ice blasting requires specific machinery that uses solid carbon dioxide pellets.

The choice of abrasive depends on the type of surface and the desired result. For example, corundum is ideal for removing hard materials, while glass beads are perfect for a delicate finish. It is crucial to consider the grit size and compatibility with the material being treated to achieve the best results.

Choosing the right abrasive depends on the type of surface and the desired result. For instance, corundum is ideal for removing hard materials, while glass beads are suitable for a more delicate finish. It is essential to consider the grit size and compatibility with the material being treated to achieve the best results.

To prolong the life of the sandblaster, it is advisable to thoroughly clean it after each use, removing any sand and dust residues inside and outside the machine. Additionally, regularly check the nozzle to ensure it is not clogged and make sure the machinery is positioned stably and securely.

Free jet sandblasters are ideal for cleaning large metal surfaces, preparing for industrial painting, and removing rust from metal structures. This type of sandblaster is designed for situations where abrasive recovery is not practical or necessary.

A sandblasting system is an enclosed and isolated chamber where the sandblasting process is performed safely and efficiently. The main elements include the blasting chamber, the abrasive recovery system, the sandblaster, and the dust suppression filter. Adequate lighting and an efficient separator to limit waste are also important.