The vacuum blasting process, also called vacuum blasting or minimal-abrasive vacuum blasting, differs significantly from conventional sandblasting.

While in the sandblasting process the abrasive is applied to the surface to be treated with pressure, in vacuum blasting the granulate is pulled out of the container by negative pressure generated in the jet cap and accelerated in the jet lance to 400 km/h. The high impact speed of the abrasive quickly removes dirt and paint from the surface. The high impact speed of the abrasive quickly removes dirt and paint from the surface.

After turning on, the jet cap (6) is placed on the surface (8) and adheres to it by vacuum. With inserting the jet lance (7) into the jet cap (6) the cycle is closed.
By gravity the granules (2) are passed through from the lower container (1) to a dosing system (3) into the air flow (4). The granules (2) are then transported through a flexible suction house (5) into the jet cap (6). Through the jet lance (7) the granulate impinges on the surface (8) to be worked on. By moving the jet lance (7) the surface can be cleaned quickly and dust-free, stripped or roughened up. The process can be optimally monitored and controlled via 3 vision panels (9). After impinging, the granules (2) and the removed dirt particles are sucked in immediately again.

No special work safety measures need to be observed during vacuum blasting. Due to the vacuum blasting technology, no debris or granules escape to the outside. Protective clothing and protective glasses are not necessary. The risk of accidents is reduced to a minimum.

The vacuum blasting process can basically be used on all mineral surfaces. It can also be used on plastic and painted surfaces.
The vacuum blasting technique has many advantages over conventional pressure blasting methods. Due to the high impact velocity, hard substances are broken up and removed, while soft substances absorb the energy immediately. This means that thick saltpeter or lime deposits can be removed easily, but chewing gum or other soft substances cannot be removed from the surface using this vacuum blasting method. Furthermore, the vacuum blasting technique can only be used on dry surfaces.

In order to create a vacuum, the jet hood hood must close tightly on the surface. Unevennesses of 15 to 25 mm are compensated by the sponge rubber. Larger unevennesses can only be processed with special attachments.

The biggest advantage of vacuum blasting is the closed circuit, which allows permanent use of the blasting media and work without protective clothing. Another great advantage of this vacuum blasting method is the easy handling and the low noise level of the cleaning machine. In addition, vacuum blasting with the Tornado ACS can be performed at any power outlet.

The minimal-abrasive technology is particularly suitable for use on surfaces under monument protection . The Tornado ACS cleaning machine removes the soiling and protects the surface.

The patented vacuum blasting process of the Tornado ACS is the perfect solution for engraving portraits and QR codes on granite. The sensitive blasting foil is not damaged with the soft blasting process. The photos and QR codes can be applied to granite in the workshop or directly on site. Due to the closed circuit of the Vakuum Strahlverfahrens, no soiling occurs when creating a photo engraving on granite.

The creation of photo engravings with the vacuum blasting unit from systeco has many advantages. The area to be blasted can be as large as desired and the blasting foil is not damaged even during longer and intensive blasting.

While with pressure blasting you have to be very careful not to blast at an angle or too close together, with vacuum blasting you always get excellent results. You don't have to be a professional to do this.

Would you like to know how a photo engraving is created? Then learn more about creating Fotogravuren auf Granit here.