SEEIF Ceramic, a.s.
Techical Ceramics of the 3rd Millennium
Fireclay refractory shapes for fireplaces and stoves construction
They are used as constructional and non-structural lining of fireplaces, boilers and stoves.
Quality group of white fireclay
The shaped refractory products are used as construction and non-construction lining of fireplaces, stoves and similar heating bodies
- R-SKA extruded fireclay and R-SKA pressed fireclay
R-SKA grade stove fireclay products are shaped refractory products with high resistance to thermal shock and increased strength. Fireclay shaped products are manufactured by extruding or by pressing out of plastic mass.
- R-SKA-D grade, stove fireclay products are shaped refractory products with high resistance to thermal shock.
The shaped products are manufactured by pressing from a semi-dry mass and they feature improved dimension deviation, out-of-squareness and warpage characteristics.
R-SKA | R-SKA-D | |
| Refractoriness (min) | 1 630 °C | 1 630 °C |
| Al2O3 (min) | 30 % | 27 % |
| Fe2O3 (max) | – | – |
| Apparent porosity | 28 % | 24 % |
| Bulk density (min) | 1 850 kg/m3 | 1 900 kg/m3 |
| Cold crushing strength (min) | 15 MPa | 15 MPa |
| Service temperature (max) | 1 100 °C | 1 100 °C |
| Resistance to thermal shocks (min) | 25 cycles | 25 cycles |
Quality group of common fire clay (red)
The fireclay blocks R-SII and R-SI/CII are refractory shaped products manufactured by the plastic technology.
- R-SI/Cll standardized and special shaped products are manufactured
- R-SII standardized and special shaped products are manufactured
The blocks are intended for internal masonry, vaults and as parts of metallurgical, cement and glass industry building sets, for construction of fireplaces, stoves and similar heat appliances as well as standard building, structural and lining material.
R-SII | R-SI/Cll | |
| Refractoriness (min) | 1 670 °C | 1 710 °C |
| Al2O3 (min) | 37 % | 35 % |
| Fe2O3 (max) | 2,6 % | 2,5 % |
| Apparent porosity | 25 % | 23 % |
| Bulk density (min) | 2 000 kg/m3 | 2 000 kg/m3 |
| Cold crushing strength (min) | 21 MPa | 25 MPa |
KTS - draught chimney system
All blocks of this system are made from fireclay of R-SKA quality. Is primarily used for building draft channels in tiled heat accumulation stoves. They are a substitute for laborious construction of the system of channels from individual plates and especially increase the efficiency of stoves. During an authorized measuring was measured 85 % efficiency of this system. The system can be connected to different stove inserts.
