Sandblasting and shot peening machines with a pressure blasting system represent the excellent choice for surface treatments that require high productivity, speed and superior impact force . Unlike vacuum systems (Venturi), this technology allows for the removal of stubborn encrustations and particularly resistant contamination or for carrying out processes in reduced times, guaranteeing a uniform result on metals, alloys and composite materials. When we talk about sandblasting machines with a pressurized shot system, we are referring to a technology in which the abrasive is pushed directly towards the nozzle through the pressurization of a special tank, rather than being sucked in by the Venturi effect. In sandblasting machines with a pressurized shot system, the tank containing the abrasive material is pressurized together with the compressed air circuit. The abrasive is then conveyed directly to the gun through a single hose and projected onto the area to be treated at high speed and with high impact energy. Compared to venturi sandblasting system, the pressurized system allows for greater removal capacity and faster processing, proving particularly effective when it is necessary to work on highly oxidized surfaces, remove resistant paints and coatings or treat large components. Pressure systems can be used for both sandblasting with abrasives, such as corundum, and shot peening with spherical products, such as glass, ceramic, or metal microspheres. Pressure adjustment and the choice of nozzle and abrasive allow the treatment to be adapted to the material and the required finish.
Compressed air enters the sealed tank, pressurizing the abrasive inside and preparing it for the next dispensing phase. At the bottom of the tank, a mixing valve doses the abrasive and introduces it into the compressed air flow, creating a uniform and controlled mixture. The mixture of air and abrasive travels through the pressurized tube and is accelerated through the nozzle, reaching a high velocity and strong impact energy. The mixture is projected onto the surface at high speed, developing a high impact force that allows for rapid, intense and effective processing. The choice between a sandblaster with a pressurized blasting system and a sandblaster with a Venturi system depends mainly on the type of work, the size of the pieces and the quantity of material to be removed. Pressurized sandblasters are ideal when high treatment capacities, greater impact force, and a higher volume of projected abrasive are required. They are particularly effective for removing stubborn debris and treating large workpieces and surfaces. The greater distance reached by the blasting jet also gives the operator greater freedom during operation. Venturi (vacuum) sandblasters , on the other hand, are a versatile, compact solution suitable for most sandblasting and shot peening processes. They are easy to use and achieve excellent results on a wide variety of components and surface finishes, with a lower investment. Our testing laboratory offers both pressurized and Venturi (vacuum) sandblasting equipment: we can perform tests directly on your parts and identify the technology and abrasive best suited to the desired result. Impact force High Average Amount of abrasive projected High Average Processing speed High Good Working distance Greater Standard Compressed air consumption High Content Total system footprint Greater More compact Ease of use High High Maintenance Standard Standard Investment Superior More content Ideal for Stubborn residues, large pieces and surfaces, intensive machining Most machining, finishing, cleaning and small burrs Fill out our request form to receive all the information you need./ pressure systems /
Pressure sandblasting and shot blasting machines
What does pressurized system mean?
The range of sandblasting and shot blasting machines
How does a sandblaster with a pressurized blasting system work?
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Tank pressurization
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Mixing
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Acceleration
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Impact
What is the cyclone and what is it used for?
Which sandblaster should I choose?
Comparison between sandblasting machines with a pressure system and a vacuum system (Venturi)
Characteristic
Pressure sandblasters
Venturi sandblasters (depression)
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