Spiral Furnace with SPW Burner

Aiming to improve energy efficiency

By recovering the waste heat of the conventional spiral furnace without discharging it and reusing it as combustion air for the burner, we have achieved a dramatic improvement in energy utilization efficiency.

Comparison with conventional furnace

Spiral furnaces are designed to optimally circulate heat according to the crucible used by the customer, taking into consideration the space inside the furnace and the pressure inside the furnace.
Furthermore, by providing a flow path to circulate exhaust heat, we succeeded in maximizing the heat exchange function of the burner.
In addition, the exhaust heat path is provided inside the furnace to reduce heat dissipation, further enhancing the energy-saving effect.

What is SPW burner?

With a built-in heat exchanger, it is especially suitable for industrial furnaces with a small amount of combustion.

SPW burner specifications (manufactured by Shoei Seisakusho Co., Ltd.)

Model	SPW-10	SPW-20
Combustion capacity [kw]	116	232
Burner capacity [Kcal/h]	100.000	200.000

Product specifications

Model	SPW-150	SPW-200	SPW-250	SPW-300	SPW-350	SPW-400	SPW-500	SPW-600	SPW-800	SPW-1000	SPW-1200
Amount of aluminum retained	150	200	250	300	350	400	500	600	800	1000	1200
Furnace outer diameter A [mm]	1.250	1.250	1.250	1.260	1.370	1.370	1.400	1.450	1.450	1.700	1.700
Furnace body height B[mm]	960	960	1.050	1.050	1.150	1.150	1.200	1.250	1.300	1.400	1.450
Furnace inner diameter C[mm]	650	650	650	660	770	780	780	840	850	1.100	1.200
Furnace depth D[mm]	700	800	850	780	780	950	1.100	700	800	850	850
melting burner capacity [Kcal/h]	200.000	200.000	200.000	200.000	200.000	200.000	200.000	300.000	300.000	300.000	300.000
Retention burner capacity [Kcal/h]	100.000	100.000	100.000	100.000	100.000	100.000	100.000	200.000	200.000	200.000	200.000