A small kiln
designed for annealing beads. The kiln has an ORTON controller.
There are 6 programs which can be set to your choice or you can use
the program already set up. Before you use the kiln for the first
time you have to "burn it out" to get rid of the organic binders
that hold the boards firm. This should be done outside.
Program 1 is set to heat up fast to 500°C and hold for 3
hours. After that time it will cool down at 45°C per hour till 470°C
. The program will end there and the kiln will cool down in a few
Program 2 is a fast heat up to 500°C, no hold,
slow cool down and off.( Same as the cool down in program 1).
Program 3 is for batch annealing. Beads that are already
made and cooled in vermiculite can be later batch annealed. Very
slow heat up to 500°C, hold for half an hour and slowly cool down.
Program 4 -8 are free.
Program 9 is set for
this "burn out". It heats up slowly to 620°C and then switches off.
Hold the door open 5mm with a piece of broken brick or a roof tile
to vent the kiln. The air enters and the smoke and stink burn out.
The boards turn brown first but as it gets hotter they turn white
again. After this you can enter a new setting in this program. The
"Burn out " you do out side . It gives off smoke as the organic
binders burn out.
Each program can have as much
as 8 steps Voltage 230 Watt 1000 Max Temp 700°C Size
36x34x22cm In side sizes 28x14x11cm