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Raschig rings

Ceramic Raschig rings have excellent acid resistance and high heat resistance. They resist the corrosion of inorganic and organic acids (except hydrofluoric acid) and organic solvents. They can be used in both high and low temperature conditions. Thanks to these properties, they are used as filling in drying columns, absorption columns, cooling towers, washing towers and activator columns in the chemical industry, metallurgical industry, coal and gas industry, oxygen producing industry, etc. Used material C111 ensures their dimensional stability and long service life.

Product descriptions

Chemical content: Al2O3/SiO2
Ceramic type: C111 (mullit)
Application temperature: 1000°C
Acid resistance: Min. 99%
Alkali resistance: Min. 55%

Density: Min. 2,0 g/cm3
Colour: White/Light Grey
Dimension Tolerances: following to Drawings
Apparent porosity: Max. 3% 3 %
Dimension Tollerances: Following drawings

Technical information

Product code ØD Ød L pcs/m3 big bag pcs/m3 pallete kg/m3 Surface mm2/pc
7020013 20 10 20 95000 850 2436
7025017 25 17 25 49000 800 3827
7035025 35 25 35 16000 640 7539
7050040 50 40 50 6500 560 15550
7080064 80 64 80 1950 670 39810
7100080 100 80 100 1000 700 62203
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Textile ceramic guide

belongs to our traditional products. We make them from technical porcelain (C111) and steatite (C221), either with a glazed or unglazed surface. Ceramics have excellent wear-resistant properties, which is why they are used on functional parts of textile machines used to guide textile fibers, threads or yarns. In this group of products we can find in particular: textile grommets with a closed (eyelet) or semi-closed opening. This also includes pulleys of various shapes and diameters.

Technical informations of C111 (Porcelain):

Chemical content: Al2O3/SiO2
Ceramic type: C111 (mullit)
Application temperature: 800°C
internal resistivity by 30°C : 1010 Ω m
Internal resistivity by 200°C: 1010 Ω m

Density: Min. 2,0 g/cm3
Colour: White/Light Grey
Dimension Tolerances: following to Drawings
Apparent porosity: Max. 3% 3%
Dimension Tolerances: following to Drawings

Technical informations of C221 (Steatit):

Chemical content: Al2O3/SiO2
Ceramic type: C221 (mastek)
Application temperature: 800°C
Internal resistivity by 30°C: 1012 Ω m
Internal resistivity by 30°C: 1011 Ω m

Density: Min. 2,0 g/cm3
Colour: White/Light Grey
Dimension Tolerances: following to Drawings
Apparent porosity: Max. 3% 1%
Dimension Tolerances: following to Drawings

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Užitková keramika

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Zásypový materiál

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Packing, handling, storage

The filters are standardly delivered in cardboard boxes on disposable pallets wrapped in foil, which protects them from air humidity. Each box has an identification label with type and size information like filter code and size, production date, inspection number.

Ceramic filters are fragile and must be transported with the utmost care. Storage is allowed in covered warehouses. It is not allowed to stack pallets on top of each other. Filters that have been exposed to high humidity must be dried before use in the foundry!