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3. Information on the tunnel
3.3 DEFLECTOR REGULATION
The T450, T650E, T650EF tunnels are equipped with a thermal chamber on which two
couples of deflectors are placed. The T650 and T650F tunnels are equipped with a
double thermal chamber and for each thermal chamber two couples of deflectors are
assembled. The top deflectors 1 improve the heat shrinking of particularly high packs.
The low deflectors 2 direct the air toward the low side of the product.
If the deflectors are opened, the air directed under the product decreases. Try to obtain
the best adjustment for the best heat shrinking.
Fig. 3.3.1
3.4 TURNING ROLLERS ADJUSTMENT T450
The product is normally conveyed by turning rollers, which grants a more
homogeneous film shrinking and a better packaging.
However, some films might tear if the rollers turn, because of the strict adherence of
the film to the rollers.
In order to find the best solution for each kind of film, the tunnel T450 can handle the
product both with turning rollers and with fixed rollers.
By means of lever A, situated on the outlet conveyour, it is possible to make the
following adjustments:
Fig. 3.4.1
1 • By keeping the lever in horizontal position, the rollers remain fixed.
2 • By turning the lever downwards, the rollers turn.
1
1
1
2
2
2
A
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