Lucifer Furnaces, Inc. offers high temperature furnace series for high speed steel processing. https:
Industrial News Buzz - The HS Box Furnace series, ideal for processing high speed tools steels is designed for 2450F operation. Silicon carbide heating elements are controlled off-the-line with an SCR power supply which automatically compensates for changes in element resistance and proportions the lowest power input, providing a steady state control. This unique control package simplifies furnace operation by eliminating the manual adjustment of tap switches and saves money on initial purchase by replacing the large power transformer, selector switches and oversized contactors. A built-in aging factor of 200% ensures excellent element life.
The furnace chamber is lined with premium grades of lightweight ceramic fiber, providing fast heat and quick recovery rates. (Heats to 2200F in 55 minutes) Fiber insulation reduces power demand to heat the chamber by 70% lowering overall KW requirements and utility costs. The HS Series provides outstanding performance for applications between 1500 - 2450F. The HS Models are designed for automatic, simple, safe and dependable operation and include these additional standard features: Heavy gauge sheet steel construction; digital temperature controller; platinum/rhodium thermocouple; double-pivot horizontal swing door; silicon carbide hearth plate, and compact space saving design. Available in single and dual chamber models in ten standard sizes from 6"H x 6"W x 12"L to 12"H x 18"W x 24"L. All furnaces are completely prewired, assembled, test fired at the factory and shipped ready for connection to 230 volt main power supply. Options include gas tight construction for protective atmospheres, overtemperature protection.