Products

The first roller designed by hob certec more than 20 years ago. Its performance has been proven over two decades across more than 30 countries worldwide. 
This is the most economical roller designed to be used under standard working conditions in the preheating and cooling zone and, even for light wall tiles in the firing zone.

The second roller designed by hob certec. It was developed more than 20 years ago and specifically designed for applications where strength, even higher than Specialroll strength, is needed.

Superroll has a higher module of elasticity than Specialroll, and this is why it is possible to install it under higher loads. This ceramic roller constitutes an economical option in the hob certec portfolio and it is to be used in firing zone with heavy wall and floor tiles.

Economical version of Hyperroll-NG to be used in those cases when the thermal shock resistance is not the main priority but it is still necessary to use a high specification technical ceramic roller.

It is a roller with a high module of elasticity which allows using it in the firing zone when the rollers work in clean conditions and under moderated chemical attack.

This roller has been designed considering all the factors influencing the thermal shock resistance of a ceramic roller. These include: thermal expansion coefficient, thermal conductivity, module of elasticity, chemical contamination inside the kiln, porosity, roller size, etc.

It is the roller with the highest thermal shock resistance in the market. Operating costs of running the kiln are reduced because, in many cases, rollers can be extracted from the firing zone, even at maximum temperatures, without roller breakages. At the same time, the high modulus of elasticity helps to keep the quality of tiles in tip top shade.

A technical roller designed to withstand the highest loads in the firing zone.

Hyperroll-X is the roller of choice to be used in any area of the kiln when, due to the weight of the tiles or the dimension of the rollers, other materials do not offer enough support for the tiles.

In recent years, with the increase in the kiln size, kiln users are choosing to install this ultimate design of roller in greater and greater numbers.

Hyperroll EXTREME is the most extreme roller in the world ,with MOE of 200 GPa.

This roller has been designed to withstand the most extreme loads 20-50 mm of tile thickness.

This unique roller enable to charge the maximum width of kilns channels with tiles in order to use their production capacity with maximum efficiency.

Thanks to its very low porosity the roller resists very well to aggressive chemical attack.

For the best kiln operation and highest output of premium quality tiles.

Hyperroll-D (Dense Nano) is the only ceramic roller in the market with zero porosity and with the highest modulus of elasticity (MOE). This means that the roller bends less than any other ceramic roller improving the tiles transport and final tile quality.

The zero porosity also offers a much higher resistance against chemical attack.

Hyperroll-D brings the best results when installing it from the entrance of the kiln up to the first module where chemical and physical pollution is greatest. These rollers always have to be installed at 650°C or below.

The Superringroll greatly improves the quality of the tile production creating a more uniform cooling of the tiles in the rapid cooling zone. The design of the Superringroll is the best roller solution to avoid the deformationin this area by reducing the contact area between the roller and the tile.

The Superringroll reduces the internal thermal tension of the roller and tile allowing a more uniform heat distribution between the tile and roller due to an excellent flowing of the cold air.

The rapid cooling zone has really specific characteristics which must be taken into account and analyzed in detail. In this area, tiles undergo a really fast and sensitive process which can ruin their final quality. The upper side of the roller is in contact with the hot tiles coming from the firing zone; meanwhile the lower side is in contact with the cold air. The hot surface expands due to the temperature.

This difference in temperatures and expansions are mainly responsible for the deformation of the rollers in the fast cooling zone. When searching for the best roller material for this area, it is important to analyze two main factors:

• Thermal conductivity: to transfer the heat around and alongside the roller reducing the temperature difference between the upper and lower part. This technique ensures that the internal thermal tension of the roller (thermal load) is reduced.
• Bending strength: A higher Module of Elasticity means that the roller can better resist the mechanical load as the tiles pass into the rapid cooling zone, they are thus less structurally and dimensionally stressed. Problems associated with transport of the tiles through the kiln are thus greatly reduced.