TPT November 2009

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Profiles and Shaped Tubes
112 N ovember 2009 ›
Visit us at BLECHEXPO:
hall 3, stand 3216
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:
Website:
Surface finishing of shaped products
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
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
Email:
Website:
 The SMI cutting machine can achieve a burr-free and chipless cut