Industria Puigjaner SA, an engineering company based in Barcelona and manufacturer of ‘DENN’ machine tools, has introduced a newly designed heavy duty CNC tube necking-in machine which they believe to be the largest machine in the world for tubes neck-in operations. The first of these machines has been sold to Tenaris, international supplier of tubes and related services.
The machine is currently being assembled at DENN premises in Barcelona (Spain) and a try-out will be conducted early December before installing the machine at the Tenaris manufacturing facility in Italy.
The necking-in machine is capable of producing Type 1 cylinders with diameters of 323-711 mm, length of 1 m to 13.6 m and thickness from 8 mm up to 40 mm.
DENN also manufactured the previous largest necking-in machine with the diameter capacity of 660 mm, 12 meters length and 35 mm thickness, which was sold to a Chinese customer.