• Yasui’s Ecological Design minimizes and practically eliminates noxious smells and fumes associated with antiquated gas and table top electric furnaces. The unique After-Burner System that is mounted on top of the RBF13+. RBF19 & RBF37+ reaches temperatures above 2000F, which is needed to remove the smoke and smells.
• The Yasui Flask Recall System will automatically bring forward the required flask that is typed into the control panel. Having a narrow door design will significantly reduce heat loss while the furnace door is open. The RBF37+ uses a foot pedal for opening and closing the furnace door.
• Yasui’s Advanced Insulation System contains the heat associated from burnout cycles and still maintains and exterior surface temperature that is cool to the touch.
• The Yasui RBF Furnaces have a built in Dewaxing Feature for removing injection wax prior to ramping up the furnace temperatures.

As the door is not wide like normal burnout furnaces, the heat lost is much less and that temperature does not fall much.

One burnout cycle can be programmed in 4 steps. Optimum heating power is automatically calculated and applied corresponding to each temperature zone, so that PRECISE TEMP. CONTROL IS ACHIEVED. Low power is for the beginning steps and higher power for the ending steps. Such a careful control has been developed for preventing flasks from the possible overheat at each step.

The RBF19 can reach temperature up to 950 centigrade and is ideal for casters who cast both gold & platinum.

Various information is obtained from the control panel, such as present step no., present burning out temperature inside the furnace etc.

Burnout cycle will perfectly proceed by the preset time. For instance, if you plan to start CASTING AT 9:00 AM next day, flasks would be ready at 9:00 AM by presetting time today. Maximum preset time is 9 days 23 hours 50 minutes.

4 kinds of different burnout cycles can be memorized on the controller.

The value of precious stones inside the furnace is beyond comparison with the value of the furnace. RBF19’s overheat protection device on the front panel can prevent the precious stones safely from overheating. Should the temperature exceed the setting value, the power is immediately shut off.

On power failure during burnout cycle time under automatic burnout mode, present burnout STEP is memorized. And when power is recovered, the burnout cycle can be automatically restored and started from the step number where power failure occurred.