TPT July 2015

Straightening

Tube, bar and wire straightening machines from Italy

The MRF series devices are completely managed by PLC, and are designed to straighten tubes and bars made of steel or other materials, hot or cold drawn, and wrapped on coils. Violi Srl was founded in 1992 and originally specialised in designing and manufacturing industrial machinery, typically used in goldsmith processes. Research and innovation have been vital to the activity of the company over the years, and it has developed many technologically advanced machines. Fom 5 to 10 October Violi will take part in the EMO 2015 show, the world machine-tool exhibition, which will this year take place at Fieramilano in Milan, Italy.

advancement of the profile in order to create a process of metal stressing and to get products perfectly straight. The MRT series includes three models with different capacities: MRT5 for tubes and bars with diameters from 3 to 11mm; MRT5M for diameters from 10 to 30mm; and MRT5M50 for diameters from 25 to 50mm. The MRP series products are designed to straighten square, rectangular or complex profiles, hot or cold drawn. The devices consist of single or double straightening groups of motorised rollers, adjustable in height with a decimal display system. Acting on the vertical axis is possible to correct the line of the advancement of the profile, in order to achieve perfectly straight products. Simply replacing the traction rollers allows processing of almost all the profiles included in the working range.

VIOLI Srl, a specialist in the design and production of industrial machinery for the manufacturing of tubes and wires, has developed a line of straightening machines for metal profiles, both circular and complex, that includes the MRT, MRP and MRF series. The MRT series for tubes and bars is equipped with straightening groups consisting of hyperbolic pairs of rollers obliquely mounted with an inclination opposed to each pair. The orientation of the axes, combined with the hyperbolic geometry of the rollers, allows the profile to rotate forward. All the rollers are mounted on motorised and independent supports, flowing within bushings that allow the operator to modify the height and the angle of the system. Acting on the vertical axis is possible to adapt the straightening machine to different diameters, and to correct the line of the

Violi Srl – Italy Fax: +39 0575 815903

Email: sales@violimacchine.it Website: www.violimacchine.it

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J uly 2015