Compensation of unevenesses of the surface which are beyond the allowed tolerances. Calibration is a prerequisite for the grinding process. The machine can also be used for the layer-by-layer milling of single or double side masonry and chmney blocks, allowing for a motarless processing.


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Customer benefits

  • High-quality, reproducible products due to planar and smooth belt transport
  • Durable machine due to stable and high-quality construction
  • High flexibility due to modular design (stations can be retrofitted) and universal holding devices
  • Time saving and improved user comfort thanks to electric height adjustment
  • Cost and space saving in dry treatment due to elimination of grinding water (no water treatment required) and special waste disposal
  • Further cost cuttings possible due to the usage of dust which occurs during the calibration process as a filler in the concrete mixture

Application / Features

  • The grinding machine serves to mill-off unevenesses of the surface of slabs and pavers which exceed the allowed production tolerances, i.e. variations of the height as well as of conicities
  • Moreover, the machine can be used for the unilateral and bi-lateral layerwise milling of both wall stones and chimney stones in order to allow a mortar-free processing
  • The treatment can be executed in dry mode or in wet mode
  • Depending on the customer´s demand the machine can be equipped with up to 3 working stations
  • Two working widths can be offered: 850 mm and 1,200 mm
  • The machine is equipped with with lateral guidances which are optionally adjustable by means of an electric motor
  • Heavy-duty tunnel design
  • Armoured machine bed, made from grey cast iron with hardened high-precision manganese steel ground plates
  • Multi-layer armoured conveyor belt, make „Siegling“ for the planar transport of the products through the calibrating stations
  • The calibrating stations are equipped with high-performance milling diamonds, attached to universal mounting devices
  • Quick and easy tool exchange due to dovetail guidances
  • VFD-driven main drives and vertical movement of each calibrating station
  • Independant control and operation panel and visualization
  • Processing parameters are being saved for each indivual product type

Technical specifications *

Belt speed 0.5 m/min up to 5 m/min
Average processing speed
in wet mode approx. 2-2,5 lin. m /min
in dry mode approx. 1-1,5 lin. m /min
*depending on product characteristics and required final result


Product thickness: 20 mm up to 400 mm
Working width: 850 mm / 1,200 mm

Model 850 1200
1 station
Length x width x height 3,9 m x 2,2 m x 3,3 m 5,4 m x 2,8 m x 3,6 m
Total connected load up to 50 kW up to 60 kW
Water consumption wet operation up to 18 m3/h up to 28 m3/h
Air consumption during dry operation up to 6,000 m3/h up to 9,000 m3/h
2 stations
Length x width x height 5 m x 2,2 m x 3,3 m 6,8 m x 2,8 m x 3,6 m
Total connected load up to 95 kW up to 110 kW
Water consumption wet operation up to 24 m3/h up to 28 m3/h
Air consumption during dry operation up to 12,000 m3/h up to 18,000 m3/h
3 stations
Length x width x height 6,1 m x 1,9 m x 3,3 m 8,3 m x 2,8 m x 3,5 m
Total connected load up to 140 kW up to 160 kW
Water consumption wet operation up to 30 m3/h up to 38 m3/h
Air consumption during dry operation up to 18,000 m3/h up to 27,000 m3/h

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.