Shotblasting

Removal of cement and exposure of aggregates from the surface of paving stones, slabs, curbstones and block steps.

Shotblasting - Curling - Coating

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SR SCHINDLER
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Shotblasting

Customer benefits

  • Sustainability and fast amortization due to modular expansion stages
  • Easy integration into existing systems due to flexible design and control
  • Durable machine due to stable and high-quality construction
  • Long service life and cost saving by using hardened tool steel for the wear parts of the turbines
  • Easy training of the operating personnel due to simple operation
  • Space saving due to integrated filter system

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 by means of 2–4 turbines at the products to be shotblasted . Depending on infeed and outfeed situation, processing is done cyclewise or in a flow . Blasting speed and belt speed are adjustable in relation 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 shotblasted 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 shotblasting machine. The machines are equipped with an independent electro-pneumatic control and operation panel. Available as stand-alone machine, integrated in value adding lines or as a bypass
of the stone making machine. Shotblasting can be combined with all surface value adding processes.
 


Technical specifications *

   
Belt speed 2,5 – 11 m / Min.
Average processing speed approx. 5 lin. m / Min.
* depending on product characteristics and required final result


TECHNICAL DATA


Product thickness: 30–500 mm
Working width: 850 mm/1.200 mm

Model 850 1200
Conveyor height 980 mm 980 mm
Abrasive consumption 240 kg/Min. pro Turbine 350 kg/Min. pro Turbine
Electric power 49 kW 74 kW
Compressed air for filter and control 22 m3/h bei 5–7 bar 36 m3/h bei 5–7 bar
Noise level < 90 db(A) < 90 db(A)
Filter capacity/power approx. 5.000 m3/h / 15 kW approx. 9.600 m3/h / 30 kW

Concrete block refinement 
creates room for creativity

The demand for diverse shapes and sophisticated surface designs, such as natural-looking stone surfaces, is constantly increasing.