TPT November 2011

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82 November 2011 ›
beNdiNg & Tube maNipulaTioN
Swaging
systems
and tooling
HYDROPRO Inc, USA, manufactures
systems and tooling for hydro-forming or
swaging. The company’s equipment can full
depth expand a 400mm (15.75") expansion
zone in just a few more seconds than it
takes to expand a 40mm (1.57") zone.
The expansion pressure and dwell
times can be precisely set and controlled
to accommodate different tube material
characteristics, which is of particular use
when using tubes with high spring-back
properties such as titanium and super
duplex stainless steel.
HydroPro’s SleevePro system uses
hydroexpanding technology to expand
sleeves or liners inside damaged parent
tubes, to repair cracks or strengthen eroded
or corroded tubes. The BoilerPro system
mechanically sets and flares the ends of
boiler tubes prior to hydroexpanding or
mechanically rolling the joints.
The TubePro WeldLock system locks
the tube in the tubesheet, precisely sets
the tube protrusion and centres the tube
in the hole, while leaving small air gaps
that allow weld gases to escape during the
welding procedure. The TubePro WeldLock
tooling’s automatic centring process sets
the weld gap between the tube and the
tubesheet hole constant throughout 360°
of arc at the tubesheet face, in around six
seconds. This system eliminates the need
for tack welding, or lightly rolling tubes in
place to prevent movement prior to welding
or tube-to-tubesheet expansion. This is said
to enhance the quality and consistency of
the finished weld, whether performed with
automatic orbital welding equipment or by
manual welding methods.
HydroPro Inc – USA
Fax: +1 573 732 3318
Email:
Website:
Professional Chinese
manufacturer of slitting lines,
tube mills, tube toolings, etc.,
since 1980’s, the one-stop
solution for the global market
with efficient after-service.
HDCT
Slitting Line
Custom-made bending
machines
DYNOBEND, The Netherlands, manu-
factures a wide range of bending machines,
specialising in custom-made machines
to meet customers’ requirements. The
company’s latest developments focus on the
possibilities for automation in the bending
process, for customers in industries such as
heating/cooling, furniture and automotive.
Automation can range from automatic
loading to complete functioning production
cells. In these production cells it is possible
to work with loading systems, weld seem
detection units, transfer units, robots, cutting
systems, drilling/punching and even end-
forming machines. Camera systems are used
for checking bend quality, and can assist in
creating a work cell with higher output.
The company states that, providing
bending is the main process, it is able to
complete any working cell. When suitable
machines are available, the company
buys them and integrates them into the
process. If the right machine cannot be
found, the company develops one to fit the
requirements.
The bending machine in the process is
the master, meaning that the computer of
the bending machine regulates all the other
processes.
Dynobend BV – The Netherlands
Fax: +31 53 850 7731
Email:
Website:
Dynobend specialises in custom-made machines
HydroPro’s
HPX 6000
base system