GTR-3455
Doc Ref: Page: 10
Date: 13/01/13 Issue: H
Pr
seal
®
uk
Tray Sealing Solutions
1.8 Principle of Operation
1. Filled trays are loaded into the base tool.
2. The table is manually rotated 180 degrees until the stop position is automatically made.
3. The sealing tool moves fully down applying heat to the coated film to seal it to the rim of the tray.
The cutting operation is incorporated into the sealing operation. The sealing tool is automatically
retracted after a pre-set time and the reel fed film is automatically fed on. If the machine is
configured to carry out gas flushing the seal cylinder is stopped in a predetermined position above
the base tool and gas is flushed into the trays. After a set time the gas valve is closed and the seal
tool moves fully down to seal and cut the film to the tray. The cycle is then the same as the
standard cycle.
4. The table is again manually rotated 180 degrees until the stop position is automatically made.
5. The sealed trays are raised out of the base tool for easy removal from the base tool.
Note:
Guards are fitted front and back of the machine to allow access to the sealing tool. If either of the
guards is opened the machine will stop instantly. A further switch and isolation solenoid valve are
fitted to isolate air supply to the seal cylinder down when table is not in station.
Always check the machine prior to commencement of operation for any non-conformance.
Always Report and log any defects, damage, malfunctions or misalignments found whilst operating
the Proseal GTR machine. Report all matters to the supervisor immediately, no matter how minor
they appear to be.
Do not carry out any operation unless you have read and understood the operating instructions
contained in this document.
Never operate the Proseal GTR machine, with any personnel inside the guarded area.
If in doubt, ASK the supervisor in charge.
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