TPT November 2009

P rofiles and S haped T ubes

New cutting technologies for irregular shaped tubes and pipes shapes, that it claims has produced some

extraordinary results. This technology has been developed and now introduced into the market with the supply of a completely automatic working cell starting from coiled copper tubes of up to 26.5mm diameter. It is transformed into cold-roll-formed T-shaped tubes that are orbitally cut to the desired length, again without burrs, chips and dust. SMI Group – Italy Fax: +39 04327 78411

SISTEMI Meccanici Industriali Srl (The SMI Group), Italy, specialises in tube processing, designing and the manufacture of a range of machines capable of creating tubes made from copper, aluminium, stainless steel, titanium, cupronickel, bundy and many more. SMI has registered two international patents for a complex cutting process that involves innovative software and the use of hi-tech metals with specific thermal treatment. SMI’s cutters and its advanced technology are capable of cutting tubes with diameters varying from a minimum of 1mm to a maximum of 40mm. The cutting process starts with a deep groove made all around the circumference of the tube with a 38 or 25mm knife that rotates orbitally around the tube; two pneumatic clamps firmly catch the tube on either side of the groove and then separate it by a pull-apart system or a break-off system. This allows SMI to guarantee to achieve a burr-free and chipless cut, maintaining

the tube’s inside and outside diameter. This is possible thanks to a number of easily adjustable parameters such as the knife’s penetrating speed, the depth of the groove, the cutting advancement speed, the clamping and pull-apart or break-off system, the speed and pneumatic power that is applied. SMI’s latest research is based on innovative orbital cutting of irregular

Email: info@smisrl.it Website: www.smisrl.it

 The SMI cutting machine can achieve a burr-free and chipless cut

Surface finishing of shaped products

SURFACE Engineering is a company that specialises in manufacturing machines and automation for the surface finishing of long products such as tubes, hollows and bars. Among a wide range of existing in-line solutions and stand-alone automatic plants is the evolution of the model STL, which is a high quality mirror polishing machine. This model, with its special lengthwise working concept, offers a higher finishing step then the standard centreless polishing systems, and is able to work on round, square as well as special shaped profiles. STL machines are suitable for up to 60 metres of products. Working simultaneously with two tools on two opposing faces, the machine holds the products from the inside and carries out an automatic programmable cycle according to the profile section and desired finishing with good productivity.

Themachine is completelyprogrammable by PLC and the working cycle is carried out automatically, taking care of all working issue such as controlled pressure and automatic tools wear management. Final configuration and layout of this STL model is studied according to specific production needs, taking into consideration dimensions and capacity of the products, and can be completed with two working areas, one for loading/unloading and one for processing and different level of handling. This machine is suitable for the high quality mirror polishing of stainless steel and non-ferrous metal products and can also achieve special finishes on decorative tubes. Surface Engineering – Italy Fax +39 02972 96473 Email: info@surfaceengineering.it Website: www.surfaceengineering.it

Visit us at BLECHEXPO: hall 3, stand 3216 www.transfluid.de

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N ovember 2009

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