TPT March 2009

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March 2009 68 ›
TUBE RUSS I A 2009
Framag is the manufacturer of high-speed
carbide circular sawing machines that
provide precise cutting quality, low tool
costs, high cutting capacity, and robust and
durable design.
The company’s machinery can handle
a range of workpiece dimensions from
70-200mm (square) and 130mm x 260mm
(rectangle), in materials including alloyed
and unalloyed steel, carbon steel and
tempered steel. The diameter of saw-
blades is from 710mm to 910mm, with
cutting speeds up to 250m/min, and length
of cut pieces from 100mm to 600mm.
The company has recently supplied
its customized technology to QSZ –
QualitätsSägeZentrum GmbH in Germany.
The first phase of this deal comprises
material positioning ‘for perfect cut’ by
frequency-controlled infeed and discharge
conveyor as well as by two opposite
positioned laser units to control the
conveyors. A positioning accuracy of ±5mm
is possible. In the second phase the sawing
unit will be fitted with a support grate,
material feed unit (positioning accuracy of
±0.5mm) and a scrap removal device. This
allows a fully automated operation of the
whole sawing process.
The state-of-the-art circular sawing machine
type KKS 1250 billets for sawing of solid
material (round, square, rectangular) is
equipped with a centric main and auxiliary
clamping device as well as with a height
adjustable table.
The advantage is the hydraulic support of
bent or curved material and protection of
the saw blade against jam in the cut. Thus it
allows much higher durability of the sawing
blades. On average more than 50m² saw
blade tool life is reached.
generation Mosweld, based on a Mosfet type
inverter able to work up to 450kHz.
As typical working frequencies in the tube
welding process are in the range of 300-
450kHz, Mosfets are the most cost-effective
choice for this application. A system control
board is provided on this unit, which
communicates with the inverter through
optical fibres. The inverter is a current fed
type, composed of an essential number of
modules connected in parallel: the output
oscillating circuit is directly connected to
the inverter.
Mosweld has advantages including
high efficiency, modular design, easy
maintenance, short circuit proofing,
reliability, and much lower voltage inside
the cabinets compared with oscillator tube
technology. In addition, power components
are not subject to obsolescence, while the
welder uses the same coils as the Classic
oscillator tube welder.
The modular structure and a complete
diagnosis system allow very quick and easy
maintenance in order to reduce production
stops. A special digital control system has
been developed for an optimum phase
locking (and then for efficiency increase),
with the possibility to follow the change
of frequency due to load variation, at any
working condition.
For a quick and cheap solution in case
of technical problems, Saet Group offers
a special service in remote mode called
Teleservice. This allows the company’s
engineers to operate from its premises
directly into the welding unit installed at the
customer’s plant.
Website:
range of rotating heads to inspect longitudinal
defects on wire and bar. Six different sizes
are available, from Ø 2mm to 220mm.
Website:
With over 25 years of experience, Elmaksan
is the manufacturer of an extensive
machinery range including pipe and profile
lines, cut-to-length lines, slitting lines, multi
blanking lines, trapeze lines, open profile
lines, slitting knives and spacers.
The company also offers coil process
equipment, automatic packing machines,
levelers, rotary shears, multiple cutting units
and associated spare parts. Each of these
lines can be modified to meet the specific
production needs of the user.
Elmaksan operates two large facilities, one
located in Istanbul (5,000m2) and another
in Kocaeli (22,000m2), staffed by over 150
people. More than 80 per cent of the total
volume of production is exported abroad
to 40 different countries all over the world.
With a constantly expanding product range,
the company’s machinery is designed,
manufactured and supplied according to
the highest quality standards.
Website:
Emmedi, the welding and annealing division
of the Saet Group, is a leading manufacturer
of solid-state welders. The company has
introduced the new solid-state welder
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 CMS is a manufacturer of eddy current inspection
systems

Elmaksan
Turkey
Emmedi (Saet Group)
Italy
 The new solid-state welder generation Mosweld
(250kW)
Framag GmbH
Austria
 The state-of-the-art circular sawing machine type
KKS 1250