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PLACING FLASKS IN YOUR WW ELECTRIC BURNOUT FURNACE
IMPORTANT NOTE: YOU MUST USE EITHER STEAM WAX ELIMINATION OR THE WAX
ELIMINATION PROGRAM OF THE FURNACE. REMOVE THE WAX TRAY AFTER THE WAX
ELIMINATION CYCLE HAS COMPLETED. FAILURE TO REMOVE THE WAX TRAY WILL CAUSE
CARBON BUILD-UP ON THE EXPOSED ELEMENTS RESULTING IN PREMATURE ELEMENT
FAILURE. THE ELEMENTS ARE NOT WARRANTED.
When starting to load your furnace for wax elimination, be sure to use a tray to catch
the melted wax. We highly recommend our WWT13 or WWT18 Furnace Grate & Tray for this
purpose. Place flasks sprue hole down. Do not allow flasks to touch the sides, back or door of
the furnace, nor to touch each other's sides. Above all, do not allow a flask to touch the
thermocouple sensor located in upper center of back wall.
When stacking flasks, be sure that the sprue hole is exposed at all times, so that no
wax residue can be trapped. See illustration below. Flasks may touch edges (not sides) of each
other as shown as long as the sprue holes are exposed.
After the wax elimination cycle is complete, the flasks must be removed so that the wax
tray can be removed, then the flasks can be returned to the furnace, sprue hole up and again,
fully exposed and the firing procedure begun. NOTE: IF THE WWT13 OR WWT18 GRATE &
TRAY IS USED, IT IS NOT NECESSARY TO TURN SPRUE HOLE UP AFTER WAX ELIMINATION.
NOTE: THESE EXAMPLES SHOW CAPACITIES FOR OUR W18 FURNACE. THE SAME PRINCIPLES
APPLY FOR ANY BURNOUT FURNACE.
Stacking suggestions in 18x18x18 furnace for maximum capacity using different size flasks.
NOTE THAT SPRUE HOLE MUST BE EXPOSED BOTH DURING WAX ELIMINATION (SPRUE HOLE IS DOWN) OR WHEN
FIRING (SPRUE HOLE IS UP).