Paragon SB-25 Sand Bath Knife Making Furnace
Even heat distribution
Sand bath heat treating is renowned for even temperatures. The sand fills a stainless steel crucible, which is held vertically inside the furnace. The crucible extends past the top of the furnace through a hole in the lid.
Please note: The crucible is not included with the SB-25. It is sold separately. The price depends on the diameter of the crucible.
Three thermocouples for precise heat measurement
The SB-25 has three temperature sensors (thermocouples). Two are inside the firing chamber, and the third is immersed in the crucible through the top. The immersion thermocouple is sheathed for long life. It is held by an adjustable mounting bracket. You can raise the thermocouple out of the crucible by loosening and raising the bracket. When necessary, turn the bracket to move the thermocouple out of the way.
Air or inert gas makes the sand flow
A small amount of air or inert gas is pumped through the crucible from the bottom. This causes the red-hot sand to flow almost like a liquid, though the sand remains a solid. A stainless steel sand catchment funnel at the top of the kiln (not shown in photos) prevents particles from bubbling out of the crucible.
The inert gas prevents scaling on the steel. If your steel doesn’t require the inert gas, you can pump air through the sand.
Heavily insulated; heavy duty construction
The firebrick walls are 4 1/2” thick, and the top and bottom are 3” thick. The furnace includes a lid that fits on top of the crucible. In addition, the crucible extends out of the furnace through a hole in the main lid. The lid covered with stainless steel for protection from hot sand.
Enjoy the convenience of a stand with locking casters. Gain access to switch box electrical parts through the easy-access control panel.
The furnace sections, wrapped in durable stainless steel, are held together with locking clamps.
Required safety equipment
Please note that safety glasses are not adequate. It is essential that you wear a full face safety shield, heat-resistant gloves, heat-resistant jacket, heat-resistant shoes, and heat-resistant pants. The sand is hot enough to cause severe burns if it spills out of the kiln.
Optional colors at no extra charge
Brighten your studio with color! Order your kiln in one of our standard colors at no extra charge . . . berry, black, blue, hot pink, jade, navy, purple, or turquoise. Scroll down to see color samples in the options section.