TPT March 2007

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Technology Update
29 March/April 2007
Projection welding machine for radiator elements
Cemsa SpA, Italy, has designed a new model of projection welding machine for the
production of radiator elements for warming houses and plants. Such ‘tube-on-tube’
products normally consist of two
longitudinal tubes, called collectors,
welded to numerous cross tubes that
are the effective means of warming.
Cemsa’s model LNR-RD-TB/TB
is designed to provide a flexible
manufacturing system with a high
level of automation. All dimension
parameters are controlled by a
CNC system, and the few clamping
equipment changes required when
changing model can be carried out
by a single operator.
The distance of the cross tubes can be easily changed, following the design and effective
service requirements. The machine is available in versions for both standard and special
solutions, and for tubes of different shapes and combinations.
Cemsa SpA – Italy
Fax: +39 02 253 3307 • Email: • Website :
by offering turnkey extrusion lines with
matching machine components, from dosing
unit to semi-finished product handling.
Each line is entirely synchronised by one
control system.
The company has introduced its new
techBEX line for the manufacture of
small technical profiles, such as IC tubes
or decorative profiles for the furniture
and automotive industries, as well as
for the refrigeration and air conditioning
industries. This standardised line is entirely
manufactured and assembled by Battenfeld
in China for the world market.
For pipe manufacturers, the company also
offers a number of machine concepts and
has, in the last three years, sold 20 pipe
extrusion lines to manufacture polyolefin
pipes with diameters of more than 800mm.
Mature line concepts are also available
for the growth area of aluminium-plastic
composite pipes, which is gaining market
share in the heating and sanitary installations
industry. This is due to the combination
of the positive attributes of the metal (ie
easy laying compatibility and dimensional
stability), with the resistance to corrosion and
incrustation of plastic pipes. In partnership
with Templet Deutschland GmbH, Germany,
Battenfeld Extrusionstechnik has designed
a complete line for the production of
aluminium composite pipes at the record
speed of 50m/min.
› The techBEX, for small technical profiles and
pipes, is manufactured by Battenfeld in China
The company has also met the rising
demand for cost-efficient production of
top-quality packaging sheet with its High
Performance Sheet Line, an extrusion line
incorporating a high-speed 75mm single-
screw extruder with an output of up to
1,600kg/h. The line is suitable for producing
PP, PET, PE and PS sheet with thicknesses
from 200µm.
Battenfeld Extrusionstechnik GmbH
– Germany
Fax: +49 5731 27 124
Email:
Website:
MK Products, USA, is the manufacturer
of weldheads with capacities from 1/8"
OD to 6" NPS. Adaptable to unusual weld
configurations, the CopperHead® series
is an effective and rugged in-place orbital
weldhead available in three models.
The CopperHead® models 5001 (1/8 to 1"
OD), 5002 (1/4 to 2" OD) and 5003 (1/2 to
3" OD), all offer versatility and high-output
production rates. The water-cooled, narrow
profile weldheads are lightweight and easy
to handle for those awkward welds with
limited access. All CopperHead® models
are equipped with fingertip controls in the
handles, thus eliminating the need for
additional remote control pendants.
The model 5006 DiamondBack™ is the
company’s largest in-place orbital weldhead
(3" tube OD up to 6" pipe size). Heavy-duty
and versatile, the DiamondBack™ also has
a narrow profile and is perfect for process
piping and weld fitting applications found in
food and beverage, dairy and other sanitary
process piping installations. Also great for
high-pressure aerospace applications, this
easy-to-use weldhead is simple yet robust
to meet the demands of field construction
or manufacturing production environments.
The model 4000 MiniMicro™ is designed to
accommodate a variety of miniature weld
fittings and face seal fittings and glands.
The MiniMicro™ is capable of welding
diameters from 1/8" to 1/2" OD. This water-
cooled micro weldhead is ideal for welding
tube and fittings with controlled surface
finishes that are electro-polished to meet
ultra high-purity system requirements.
Established in 1966, MK Products is the
original inventor of Cobramatic® push-pull
wire feed technology and is recognised
worldwide as a leader in aluminium welding
systems. MK Products also manufactures
MK Orbital™ tube welding systems for
exotic alloys and Aircrafter™ tabletop rotary
positioners.
MK Products – USA
Fax: +1 949 472 1428
Email:
Website:
› The LNR-RD-TB/TB projection welding machine from
Cemsa
› The high-quality range of weldheads with
capacities from 1/8" OD to 6" NPS
Orbital weldheads for sanitary, ultra high-purity
and high-pressure jobs