GLUING & PRESSING
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Union Tool’s complete line of automated machines!
The Union Tool Corporation
Only from Union Tool
Engineered flooring is used as an alternative
to solid hardwood flooring. The Union Tool
Corporation offers a complete material
handling and coating system for laminating
• Includes a hot melt roller coater, lay-up
conveyor and multi-nip roll machine.
• The hot melt roller coater applies a controlled
and consistent amount of (PUR) adhesive.
• The lay-up conveyor allows a piece of lamella
to be placed on top of the coated core.
• The multi-nip roll machine is then used for
pressing and holding the two pieces together.
Count on Union Tool for your next
engineered flooring system.
New Engineered Flooring System
there are three active zones/
chambers in the machine that
influence the cycle, and the final
product. In the first chamber,
like that of the vacuum press and
two-machine, you have a vacuum
draw to do the initial work of
pulling/wrapping the overlay
around the components placed
on the bed of the machine.
In the upper chamber of a
three-chamber press it is much
like that of the two-chamber ma-
chine, there is positive air pres-
sure to press against the surface
of the overlay to form it tightly
to the substrate. This provides
the pressure needed to do details
that a vacuum press cannot
achieve. However, the real beauty
of the three-chamber press is in
the middle chamber.
The middle chamber provides the technology to allow
true membrane function in a
machine that has affectionately
been termed a membrane press.
The middle chamber offers air
flow in both directions. When a
membrane is being used on-board
the first cycle function is to draw a
vacuum in the middle chamber to
bring the overlay and membrane
together. This helps to thoroughly
heat the overlay, along with draw-
ing out potential wrinkles. Once
the overlay is heated, both the
membrane and overlay are drawn
around the substrate in a single
step – vacuum draw. Next the
upper chamber provides posi-
tive pressure to drive the details
into the shape of the component.
Finally the membrane is separated
from the overlay by an introduc-
tion of positive air pressure in the
middle chamber. This releases the
overlay from the membrane and