TPT May 2015

Technology News

Fusion machines THERMOPLASTIC fusion machines expert McElroy has opened an office and demonstration facility in Bangalore, India, devoted to sales, rentals and technical service. “We see a tremendous need in India for better infrastructure to help grow its economy and improve its citizens’ daily lives,” said Peggy Tanner, executive vice president of international market development at McElroy. McElroy’s fusion machines are used to join polyethylene pipe in potable water, sewer, chemical, compressed gases and low-pressure natural gas applications. The company also manufactures machines to fuse polypropylene pipe, which is used in a variety of indoor plumbing systems.

Tube straightening 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 includes three models: MRT5 for tubes and bars with diameters from 3 to 11mm; MRT5M for diameters from 10 to 30mm; and MRT5M50 for 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. The MRF series devices are managed by PLC, and are designed to straighten tubes and bars made of steel or other materials.

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 advancement of the profile in order to create a process of metal stressing and to get products perfectly straight.

Violi Srl – Italy Email: sales@violimacchine.it Website: www.violimacchine.it

McElroy – USA Email: fusion@mcelroy.com Website: www.mcelroy.com

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M ay 2015