Introduction
2‐14
P/N 397189E
E 2006 Nordson Corporation
BM200_EASY_GEAR
Functioning
Raising and Lowering Heating Punch
A pneumatic cylinder controls raising and lowering of the heating punch.
When lowering the heating punch, a two‐hand control must be operated for
safety reasons until the heating punch is in the drum.
The air pressure in the pneumatic cylinders is limited to 7.5 bar (0,75 MPa /
109 psi) by a pressure restrictor valve.
Deaerating Drum
The drum deaeration valve must be opened manually so that air can escape
(drum is deaerated) when the heating punch is lowered into the drum.
Aerating Drum
Air must be introduced into the drum (drum is aerated) to prevent a vacuum
from forming when the heating punch is raised. Depending on the model, this
is done with an automatic drum aeration valve or must be prepared manually
by screwing in an aeration pipe.
The air pressure in the drum is limited to 1 bar (0.1 MPA / 14.5 psi) by a
pressure restrictor valve.
Deaerating Aerating
Air
Heating punch
Drum
Compressed air
Heating punch
Drum
Fig. 2‐8
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