Furnaces - Used and Surplus Inventory | IPP

Explore used, secondhand and surplus furnaces from IPP – in stock and ready for sintering, calcining, annealing and more

Maximize throughput and control costs with IPP’s ready-to-ship industrial furnaces for demanding process applications

Used furnaces are critical in industrial processes that require controlled, high-temperature environments for material transformation. From calcining powders to annealing metals or performing thermal oxidation, these systems offer precision heating and durability for continuous or batch production. With over 47 years of experience, IPP supplies secondhand and surplus furnaces from 20 global plant sites and maintains a massive inventory of more than 15,000 process systems, all available for fast delivery.

IPP’s inventory includes electric, gas-fired, rotary, box and tunnel furnaces from trusted manufacturers like Lindberg, Harper, SECO/WARWICK, Thermcraft and others.

Primary uses across industries

• In metals and materials, for annealing, tempering, hardening and brazing
• In chemical processing, for thermal decomposition and catalyst regeneration
• In ceramics and glass, for sintering, glazing and batch heat treatment
• In battery and electronics, for electrode drying, calcining and thermal activation

Types of materials processed

• Metals, oxides and ceramics requiring phase change or strengthening
• Catalysts, salts and powders needing precise calcining or drying
• Glass, composites and advanced materials for aerospace and energy

Common materials of construction

Furnaces are designed for temperature extremes, chemical resistance and structural integrity:

• Stainless steel or Inconel for high-temperature components and chambers
• Alumina and refractory linings for thermal insulation and chemical resistance
• Mild steel for outer shells and structural supports

Key features of industrial furnaces

• Electric and gas-fired configurations with precision temperature control
• Batch and continuous styles including rotary kilns, belt furnaces and box furnaces
• Capable of exceeding 1000°C depending on process needs
• Zoned heating for uniform temperature profiles
• PLC or SCADA integration for real-time process control and automation