In this case, we retro-fitted 2 Wulftec WHP-300 towers to the
customers existing turntables. By doing this, the customer
was able to eliminate his old carriage lift problems and they
also got a no-thread film carriage that was now providing them
with 200% pre-stretch. The logic for the existing turntables and
counting operation was added to Wulftecs PLC on-site.
Customer: Pioneer Hi-Breed
Machine: Muller RPA-800 Automatic turntable systems (2)
Scenario: Customer was looking to replace the stretch wrappers as the film
carriage tower was worn to the point of not being able to support
the film carriage, while the film carriage itself was providing
little prestretch. Also as the equipment was installed years ago,
the customer's machines were surrounded by equipment that made
it extremely difficult and expensive to replace. As an alternative,
a retrofit was proposed that would allow the customer to keep
the assemblies that were still performing well while replacing
just the assemblies that had deteriorated.
Retro-fit: A Wulftec tower assembly complete with the vertical lift drive
system was installed. With the controls also located in the tower
structure any retrofit would require new controls and wiring.
A new PLC was installed and the system completely reprogrammed.
A retrofit film carriage was included to complete the upgrade.
Results: The extended production downtime and long installation process
due to the requirement of removing surrounding equipment was eliminated
with this retrofit. Customer was able to limit capital expenditures
while dramatically reducing stretch film costs.
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