< Build your future on our experience > Metalforming Equipment Fontijne Grotnes has developed an uncommon approach to metalforming as an alternative to conventional techniques and practices for forming or sizing hollow geometric shapes. There are two key factors to this approach: the use of hollow cylindrical blanks and the subsequent forming processes to shape the blanks. Using cylindrical blanks eliminates the costly stamping operations of blanking, deep drawing and piercing, which can lead to expensive scrap. These blanks are formed to close tolerances, often in single operation, by expanding, shrinking or rotary roll forming. These processes eliminate machining and fabricating steps, saving time, material and manpower. Search Events Tube 2012 26-03/30-03 2012 Düsseldorf, Germany Hall 6, Booth A09 News Locations

< Build your future on our experience > Full Length Pipe Expanders To meet the international standards for longitudinal welded large diameter pipes in the oil and gas industry, Fontijne Grotnes is active in designing and manufacturing of mechanical Full Length Pipe Expanders for more than 40 years. Our Full Length Pipe Expander is in use with well-known LSAW pipe manufacturers all over the world. A Full Length Pipe Expander is an essential part of the production process in a pipe mill. Tolerances for ovality and straightness of pipes are becoming increasingly important to the later laying of pipes in the field. The pipe expander process makes the welding of the pipeline in the field, even cut pipe sections, much easier. The expander guarantees a consistent, repeatable process regarding diameter and mechanical properties. Fontijne Grotnes is constantly improving the pipe-expanding process in anticipation of new markets. Fontijne Grotnes developed a straightening system, which is especially designed for small pipes ranging from 16”-30”. This system controls the straightness of the pipes in all directions within ½-API-, ISO and DNV-standards. It is designed in such a way that it can also be mounted on existing expanders. For larger pipes ranging from 32”-64” we have developed a software controlled infeed straightening system. Search Events News Locations