Forming rolls for the tube sector can be made of different materials such as special steels, sintered materials or from various other alloys. Roll material selection is determined by various factors, such as the material the tube is made of (cold or hot rolled steel, galvanized steel, stainless steel, incoloy, aluminium, titanium, copper and its alloys), welding method (High Frequency, TIG, Laser), mill speed, productivity and quality of the final products required.

 

In case of high quality products, such as  automotive  or furniture applications, and whenever the production of a tube with tight tolerances is required, Eurolls offers its customers solutions which foresee the use of combined materials, including solid carbide rolls in the most critical applications or where rolls are subject to wear. Eurolls will recommend the best economical solution based upon the proper relationship between price and technical advantage. The increase in lifetime, (which is exponential, compared to rolls made by steel), and the reduction in maintenance and tube mill down times, provides a great advantage to our customer base, and is sincerely appreciated, considering that our tooling provides a more than justified price/advantage ratio.

 

 

Another technological advantage, resulting from experience acquired over the last few years in the stainless steel tube sector, is the use of rolls with floating flanges.  Rolls made with Floating Flanges guarantee the production of tube with a better surface and less marking problems. According to the type of welding and dimensions available, Eurolls suggests that the flanges rotate on bearings or on grease film; both solutions compensate the difference between peripheral speed and root diameter speed, thus creating a lower possibility of stress and defects on the final product.