WCA March 2007

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Technology News
40 Wire & Cable ASIA – March/April 2007
Wanda wire . . .
Wanda Galvanized, China, is a
manufacturer and global exporter
of galvanised iron wire, ranging in
diameter from 0.18mm-4.5mm, with a
zinc coating of 12-250gm2.
Coil sizes range from 25-800kg and
are available by special order.
Wanda Galvanized – China
Fax: +86 318 785 8884
Email:
Website:
New cast film
take-off system
Wayne Machine has introduced a
new medium sized ‘Yellow Jacket’
cast film take-off system that features
orientation capability.
This is accomplished by a second chill
roll featuring a high precision speed
ratio follower drive linked to the main
chill roll drive.
The closed loop AC Flux Vector drive
system maintains the selected speed
ratio between the two rolls, allowing
the film to be orientated in the machine
direction to the exact degree required.
Once set, the motors are constantly
monitored with encoders.
The chill rolls feature double shell,
spiral baffle construction with mirror
finish chrome plating, and are direct
driven with independent motors. A
nip roll station is an integral part of
the take-off system. The nip rolls also
feature a precision speed ratio follower
drive linked to the second chill roll that
maintains the exact amount of film
tension desired.
Orientation and tension control are
key to achieving critical mechanical
property parameters in the finished
film, especially when dealing with
engineering and highly filled polymers.
Various roll finishes are available
to make specialised film, such as
corrosion-resistant types for Teflon
FEP, and anti-stick matte finishes for
polyurethane films.
A complete emergency stop system
opens the nip rolls and stops the chill
rolls whenever air pressure drops,
the safety chain is pulled or when a
mushroom pushbutton is pressed.
Screw jacks provide for easy height
adjustment of the entire system. The
new ‘Yellow Jacket’ cast film take-
off systems are ideal for adding cast
film capability to existing extruders,
as drop-in replacements for existing
take-offs or as part of a complete cast
film system including extruder, die,
take-off and winder.
Complete computer and SCADA
control system interface is available
for automatic, remote control and data
logging and trending.
Custom options, including pay-offs
for fibre or paper-backed film are
available.
Wayne Machine & Die Company
– USA
Fax: +1 973 256 1778
Email:
Website:
The new 30" (750mm) cast film take-off ▲
Keeping set up times to a minimum
Håmex’s complete range of exchangeable tungsten carbide inserts for dies
and cutters eliminate the need for regrinding and allow replacements instead
of the tools having to be scrapped.
The patended dies have a rotatable and exchangeable insert of tungsten
carbide with up to three profiles. Changing from one profile to another can
be done very quickly, which allows three nail dimensions to be manufactured
with minimum set up times.
The cutters have an exchangeable insert with two cutting profiles. When
worn to a certain level, the insert is turned 90 degrees to a new cutting
profile. When both cutting sides are worn out, a new insert can be fitted to
the holder.
The complete range of tungsten carbide tools for nail manufacturing consists
also of cutters for Enkotec machines and chisel feeders, cutters, punches
and wire guides for Wafios N90 machines.
Håmex – Sweden
Fax: +46 13 357660
Email:
Website: