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Frequently asked questions

Welcome to FAQ

 

 

In this section, you can find answers to the most frequent questions we receive from those in the sandblasting field.

Should you not be able to find the answers you are looking for, and you feel the question could benefit others like you, you can send it to us through this contact form.We will personally respond, and include your question on this page.

Happy reading!

 

 


EQUIPMENT-RELATED QUESTIONS


Da che cosa dipende il consumo dĺaria della sabbiatrice ?

Quanto incide la potenza del compressore per utilizzare al meglio la sabbiatrice ?

Can I use ocean or river sand?

What's the difference between free jet sandblasting and suction blasting?

Is there a difference between a reverse pressure sandblaster and a pressure sandblaster?

What's the difference between a shot peening machine and a sandblasting machine?

Can the start and stop of a sandblasting machine be controlled from 30 m away?

How can you stabilize the hourly consumption of a sandblaster's abrasive?


 

EQUIPMENT-RELATED QUESTIONS


What type of protection should be used during sandblasting?

Is sandblasting pollutive?

Is there an eco-friendly type of sandblasting?

Is there a sandblasting system that doesn't produce dust in the workplace?



QUESTIONS ON SANDBLASTING TECHNIQUE


Can a sandblaster be used for conservative restoration projects?

Is it possible to treat metals and metal sheeting without ruining their surfaces?

At what distances should surfaces be treated?

What are the main abrasives used with sandblasting machines?

 




EQUIPMENT-RELATED ANSWERS



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

    NOZZLE AIR CONSUMPTION IN LITERS/MINUTE
    NOZZLE 4 BAR 5 BAR 6 BAR 7 BAR 8 BAR
    2.5 mm 255 281 305 327 348
    SABIX STANDARD 3.0 mm 368 406 440 472 502
    3.5 mm 502 553 600 644 684
    4.0 mm 657 725 786 843 896
    4.5 mm 835 920 998 1070 1137
    5.0 mm 1036 1141 1237 1326 1409
    5.5 mm 1262 1390 1506 1614 1714
    6.0 mm 1516 1669 1807 1936 2055
    6.5 mm 1803 1982 2145 2296 2437



    What strength compressor should be used for the best sandblasting results?
    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.

    Can I use ocean or river sand?
    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.


    What's the difference between free jet sandblasting and suction blasting?
    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.



    Is there a difference between a reverse-pressure blaster and a pressure blaster?
    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, such as the case of the Aspire Blaster . 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 MACHINEsection, you will find our corresponding products, as well as others.


What's the difference between a shot peening machine and a sandblasting machine?
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).


Can the start and stop of a sandblasting machine be controlled fro 30 m away?
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.


How can you stabilize the hourly consumption of a sandblaster's abrasive?
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.

 




SAFETY ANSWERS

    What type of protection should be used during sandblasting?
    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.

    Is sandblasting pollutive?
    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 .

    Is there an eco-friendly type of sandblasting?
    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.


Is there a sandblasting system that doesn't produce dust in the workplace?
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.





RESPONSES TO SANDBLASTING TECHNIQUE QUESTIONS

Can a sandblaster be used for conservative restoration projects?
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.


Is it possible to treat metals and metal sheeting without ruining their surfaces?
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.


At what distances should surfaces be treated?
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.

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What are the main abrasives used with sandblasting machines?
The main The mainare the following - each has a different purpose:

corundum,
metallic media,

garnet,
quarzite,
glass microspheres,
steel microspheres,
ceramic microspheres,
agricultural media,
plastic media, 
and corncob.



 


FREQUENTLY ASKED QUESTIONS



Here you can read answers to some
of the most common questions on sandblasting.


 


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