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Roller Hearth Furnace front view

Roller Hearth Furnace

Aichelin Unitherm roller hearth furnaces with protective atmosphere are designed for continuous processes with high requirements for component quality.

Product details

  • HeatingElectric/ Gas Heated
  • AtmosphereEndo Gas / Methanol + N2 / N2 / Air
  • Gross Capacity 100 to 2000 kg/hr.
  • ProcessHardening with oil / salt / polymer, hardening / forming with press quench, isothermal annealing with controlled cooling via recipe program, annealing, normalising and stress relieving.
  • Plant AutomationiFACE, SCADA
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Roller Hearth Furnace
Continuous heat treatment engineered for uniformity, reliability and high throughput.

A roller hearth furnace is a continuous heat treatment solution designed for high-volume and uniform processing of metal components. It enables processes like hardening, annealing, normalizing, carburizing and stress relieving with controlled atmospheres.

The furnace uses motor-driven rollers to ensure smooth material flow, improving productivity and consistency. Available in electric or gas heating, it supports precise temperature control and recipe-based cooling cycles.

Its rugged design and automated operation ensure high uptime, reliability, and efficient continuous production. Widely used for automotive, bearing, and industrial components, it handles capacities up to 2000 kg/hr.

Additional technical features

  • Electric/Gas heated options available.

  • Furnace atmosphere- Endo Gas / Methanol + N2 / N2 / Air

  • Roller diameter: 15 - 230 mm.

  • Loading of parts directly onto rollers with quenching through chute.

  • Recipe based ISO cooling with bidirectional air flow for uniform cooling of parts with part temperature monitoring.

  • Sturdy and rugged design with electro-mechanical drive system results in lower break down for higher uptime.

  • Furnace Capacity: 100 to 2000 kg/hr.

Roller Hearth Furnace
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Our Service & Support
Reliable service throughout your entire furnace lifecycle

We support our customers throughout the entire lifecycle of their furnace – from commissioning and operation to modernization and digital integration.

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Questions & Answers
FAQ – Aichelin Unitherm Roller Hearth Furnace
The Roller Hearth Furnace is suitable for hardening with oil, salt, or polymer quenching, press quenching, isothermal annealing, normalising, and stress relieving. Its controlled heating and cooling system ensures consistent metallurgical properties across different application
Components can either be loaded directly on the rollers or placed in baskets and fixtures based on part geometry and process needs. Depending on the application, quenching is carried out through elevator arrangements.
The sturdy electro-mechanical drive system offers reliable and stable furnace operation with lower maintenance requirements. Its rugged construction minimizes breakdowns and ensures higher uptime during continuous production
The furnace supports roller diameters ranging from 15 mm to 230 mm, allowing flexibility for processing various component sizes and load capacities. This versatility helps optimize handling for different product types.
Consultation & Inquiry

Let’s Discuss Your Heat Treatment Requirements!

We are happy to support you with questions regarding heat treatment systems, components, and process requirements. We assist you in selecting the optimal system solution.

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