DRYIT Semi-Continuous Tray Drier
Practical Action
Chamfered edges
Side
Top
Back
Figure 20: cladding configuration
A large hole is cut in the top of the cladding for the air exit. This should have a diameter of at
least 300mm to avoid excessive backpressure. The hole is positioned centrally towards the
back, as shown in figure 19.
To allow free vertical movement of the lifting fingers (see figure 31), slots are cut in the side
cladding. The slots’ positions are also shown in figure 19. Profiling of the bottom back
corners of the side cladding is necessary to prevent leakage. This is shown in figure 21.
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Figure 21: Profiling
Construction
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Follow instructions for cladding the base. Note that the holes in the MS angle for fixing the
cladding to the framework must be as close to the edge of the MS angle as possible.
Also see the section on Tray Guides as ideally the tray guide should be fitted to the cladding
before fitting the frame.
Tray Guides
Tray Guides are needed to align the trays in the drying cabinet. This is to ensure that all the
trays fall neatly when the bottom tray has been removed and that trays are then properly
positioned for ‘pick up’ by the fingers.
The guides are fixed to the plywood cladding.
Two guides run down each side and they are positioned to line up with the corner
reinforcements. These guides have full chamfers down each side to prevent trays from
caching during loading.
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