This 25 place fusion (assay) furnace is electrically powers by a 24000 Watt heating element allowing it to reach and hold a temperature of 1200 degrees C (2200 F).
With a working area of 56 cm deep X 59 cm wide X 19.5 cm tall, this furnace will hold:
This furnace has an easy to use main rotary on/off switch.
It is heated by 12 elements mounted in the side walls. It is ideally suited to continuous running as this will prolong the life of the elements.
Temperature is monitored and modulated automatically by a Type K thermocouple system and Omron temperature controller, pre-set for a maximum temperature of 1200 degrees Celsius. This controller is simple to operate, and has a 2-level display (PV and SV). that shows actual temperature as well as the temperature the furnace is set to.
The doors have Omron door switches installed that will automatically cut power to the heating elements when any door is opened.
Regular maintenance is required to make sure furnace is running correctly.
When staring a furnace up with a new muffle installed or starting the furnace from cold you must do so slowly. This is to reduce any cracking in the cold muffle of furnace.
Once muffle is in place and rear vent has been installed into furnace:
Start furnace and set to 250°C;
Run for a minimum of 2 hours;
Set temperature to 500 °C and run for another 1 hour;
Set temperature to 800 °C and run for another 1 hour;
Set temperature to 1200 °C and run for another 1 hour;
Set temperature to normal running conditions and muffle is ready for use.
To do this and to extend the life of your muffle and furnace, regularly check that muffle chamber has no cracks, if so then seal with some refractory cement. Make sure a floor tile is always installed, with about 15mm of Bone Ash underneath it. Regularly scrape and clean the floor tile. If there is build-up on one side, flip the tile over to double its life. Change floor tile regularly.
Keep the floor areas around the furnace clean and free of dirt, as it will layer onto the transformer and control equipment. This chokes the equipment and makes it run hotter and it may over heat.
Remember a chamber is a consumable item in a furnace. You must change a chamber out at least 2-3 times a year if looked after correctly. If little or no maintenance is done on a furnace, the chamber can last as little as 1 month. If the chamber is left unchanged, the brick work of the furnace will be eaten away. This will severely reduce the life of your furnace.
A good clean combustion chamber will allow the furnace to run efficiently. To do this and to extend the life of your muffle and furnace, regularly check that muffle chamber has no cracks, if so then seal with some refractory cement.
Make sure a floor tile is always installed, with about 15mm of Bone Ash underneath it. Keep the back Vent clean and clear, and change it when needed. Regularly scrape and clean the floor tile. If there is build up on one side, flip the tile over to double its life. Change floor tile regularly. Regular maintenance is required to make sure furnace is running correctly. Maintain Door ceramic blanket and change it if in poor condition.
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