Of pavers, slabs, curbstones, block steps – optionally face and/or side surfaces. During processing, cement is removed and the aggregates are exposed. Shotblasting machines use steel or stainless steel balls as abrasives. In operation, the steel or stainless steel balls, standard size 0.6–0.8 mm, get thrown using 2–4 turbines at the products to be shot-blasted. Depending on the infeed and outfeed situation, processing is done cyclewise or in a flow. Blasting speed and belt speed are adjustable to the product to be treated and the desired surface appearance. Turbine and belt drive are frequency-controlled for a homogeneous treatment from rough to fine. The quantity of abrasive is electro-pneumatically adjustable.
The perforated belt, ribbed transversely to the running direction, ensures a proper transport of the layers without drifting of single stones and refeed of abrasive material to the material silo. Abrasive material which stays on the shot-blasted products is removed by a height-adjustable high-pressure blowing device or a magnetic strip and fed back to the material silo.
Blasting chamber and turbine housing made of manganese steel. Available working widths 850 and 1,200 mm. A cartridge filter unit is installed as standard on the shot blasting machine. The machines are equipped with an independent electro-pneumatic control and operation panel. Available as stand-alone machine, integrated with value-adding lines, or as a bypass of the stone-making machine. Shotblasting can be combined with all surface value-adding processes.
