RIF SPA

RIF SPA

R I F S.p.A. - Via Adriatica 119 - Basaldella (UD) ITALY

Polyurethane

Polyurethane


For a long time customers were asking us about Polyurethane and Composites coatings, until it became  for RIF an unavoidable choice, an inevitable completion of the  products’ range and services  considering, as well as decades of experience and introduction into the market, even the high operational capabilities of the other RIF production departments,  which are in fact able to carry out all the accessory processes also for this type of coatings.

We have therefore created a completely new specific department, with a high level of automation and equipped with the latest generation of operating machines, which are also compulsory choices given the important presence of excellent competitors in the market.

The purpose of use of the above coatings is mainly that of the paper industry.

The new department is currently able to perform coatings with table up to 12000 mm, diameter 2000 mm and in this first phase with cylinder weight up to 40 tons.

POLYURETHANE

The new "HEVO" series Polyurethane coatings can be used in almost all paper machine applications, such as forming, press section as well as Size-Press and Coating sections, especially where severe operating conditions of the cylinders require particularly high-performance coatings and able to ensure long periods of continuous operation.

Thanks to the unique properties of the new Polyurethane coatings, we are able to optimize their performance and service life. In parallel with the installation of production equipment, we have also developed new techniques and coating materials for high-end products. We are therefore able to ensure the following performances:

- Coatings with very high elasticity with consequent minimized overheating and therefore reduced or zero need for reconditioning inside the cylinder

- Extreme wear resistance with a significant increase in duration between grindings

- Drastic increase in mechanical resistance to high dynamic loads typical of the most demanding press positions

- High hydrolytic stability and mechanical toughness for the purpose of a surface profiling that increases the dehydration of the sheet

- New anchoring system to the base metal of the cylinder to obtain maximum reliability.

 

The new range of polyurethane coatings:

HEVODRIVE> wire roll cylinders

HEVOPRESS> cylinders for wet presses

HEVOPRESS-Y> pressing cylinders against creping Yankee cylinder

HEVOSIZE> cylinders for Size-Press

HEVOFILM> Coating Rolls

Thanks to the typical properties of Polyurethane such as elasticity, abrasion resistance, cut and tear resistance, the possibilities of applying the new RIF coatings also extend to other sections of the paper plant such as the winding and rewinding sections of the sheet.

 

COMPOSITE COVERINGS

Thanks to the use of Nano-particles and special reinforcing filler materials, the new HEVOCAL series composite coatings are designed for use in Smooth Soft, Supercalanders and multi-nip calenders both on and off the paper sheet production line.

These coatings are optimized for calendering various types of paper and could be specially designed for specific applications upon request.

MAIN FEATURES

- Excellent dynamic performance with low energy consumption for high load applications

- Excellent resilience and breaking strength properties

- Extreme wear resistance to maintain long operating times

- Optimized surface features

- Innovative anchoring system to the base metal

- Anchoring system optimized for temperature containment.

 

HEVOCAL coatings, for some applications, can also be anchored directly on traditional elastic calender cylinders coated with paper or similar.

With composite coatings, the range of new RIF coatings also extends to other applications such as:

- Coating of central cylinders and / or upper cylinders of the wet press section suitable for direct contact with the sheet of paper, with increased sheet detachment and scrapability properties.

- Coating of counter-cylinders for Shoe-Press

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