Industrial Furnaces

Caltherm designs and manufactures industrial furnaces for heat treatment, metal melting and high-temperature thermal processing. With over 40 years of experience as a UK furnace manufacturer, we build box furnaces, batch furnaces, gas-fired, conveyor and roller hearth furnaces to your exact process requirements.

Every furnace is engineered at our Staffordshire facility using 3D CAD design, built to CE and UKCA standards, and supported by our in-house servicing and spares team. Whether you need a standard configuration or a fully bespoke thermal solution, our engineers work with you to specify the right furnace for your application, budget and production goals.

Contact our furnace experts today to discuss your requirements, or learn more about the different types of industrial furnaces.

Please Select One of Our Industrial Furnaces

Batch & Box Furnaces

Gas-Fired Furnaces

Conveyor Furnaces

Roller/Bogie Hearth Furnaces

Product Handling

What Is an Industrial Furnace?

An industrial furnace is a high-temperature heating system used in manufacturing processes such as heat treatment, metal melting, curing and thermal processing. Unlike standard industrial ovens, furnaces are engineered to operate at much higher temperatures, typically above 600°C, and to deliver precise, repeatable thermal control across demanding production environments.

Box Furnaces and Batch Furnaces

Box furnaces, also known as batch furnaces or chamber furnaces, are the workhorses of industrial heat treatment. Components are loaded into an insulated, front-loading chamber and processed in fixed batches, making them ideal for varied production runs, larger workpieces and processes that demand tight temperature uniformity.

Caltherm box furnaces are custom built around your process, with options including:

Chamber sizes designed around your components, from compact units to large-capacity chambers for heavy fabrications, castings and forgings
Gas-fired or electric heating, specified for your site and running costs
Temperature ranges to suit annealing, hardening, tempering, normalising, stress relieving and preheating applications
Advanced controls and data logging, including options for AMS2750 and Nadcap-aligned aerospace heat treatment
Loading options including manual, trolley, bogie hearth and integrated product handling

Because every Caltherm furnace is designed and manufactured in the UK, lead times, site installation and ongoing servicing are all handled by one team.

Explore our batch and box furnaces or request a quote.

What Types of Industrial Furnaces Does Caltherm Manufacture?

Caltherm designs and manufactures a full range of industrial furnaces to suit different industrial processes, including:

Batch and box furnaces – ideal for processing components in fixed quantities, offering flexibility for varied production runs
Gas-Fired Furnaces – efficient, high-output heating for continuous industrial use
Conveyor Furnaces – designed for high-volume, continuous-flow processing
Roller/Bogie Hearth Furnaces – suited to larger or heavier components requiring consistent heat distribution
Product Handling Furnaces – built around specific handling and loading requirements

Whether you need a standard model or a fully customised industrial furnace, Caltherm’s team works with you to specify the right solution for your application, budget, and production goals.

Choosing Caltherm as Your Industrial Furnaces Manufacturer in the UK

At Caltherm, we understand the critical role industrial furnaces play in your manufacturing process. That’s why we’re dedicated to providing top-of-the-line furnace solutions tailored to your unique needs. When it comes to selecting the right industrial furnace, here’s why you should choose Caltherm:

1. Unparalleled Expertise: With decades of experience in thermal engineering, our team possesses unparalleled expertise in designing and manufacturing industrial furnaces. We understand the complexities of various industries and can customise solutions to meet your specific requirements.

2. Cutting-Edge Technology: We leverage the latest advancements in furnace technology to ensure optimal performance and efficiency. Our state-of-the-art furnaces are equipped with advanced controls, automation features, and energy-saving capabilities to maximise productivity while minimising operational costs.

3. Superior Quality: Quality is at the heart of everything we do. Our industrial furnaces are built to the highest standards using premium materials and precision engineering techniques. Each furnace undergoes rigorous testing to ensure reliability, durability, and consistent performance under the most demanding conditions.

4. Customised Solutions: We recognise that every application is unique. That’s why we offer fully customisable furnace solutions tailored to your specific process requirements, production goals, and budget constraints. Whether you need a standard furnace model or a bespoke design, we have the expertise to deliver.

5. Comprehensive Support: Our commitment to customer satisfaction extends beyond the sale. From initial consultation to installation, training, and ongoing support, our team is here to assist you every step of the way. We provide comprehensive technical support, maintenance services, and spare parts availability to keep your furnaces running smoothly for years to come.

6. Proven Track Record: With a proven track record of success across a wide range of industries, Caltherm is the trusted choice for industrial furnace solutions. Our satisfied customers rely on us for dependable performance, innovative technology, and unmatched customer service.

Industrial Furnace FAQs

What is a box furnace used for?

A box furnace is used for batch heat treatment processes including annealing, hardening, tempering, normalising and stress relieving. Its front-loading chamber design makes it suitable for a wide range of component sizes, from small parts processed in trays to large fabrications and castings.

What is the difference between a box furnace and a batch furnace?

The terms are often used interchangeably. A box furnace refers to the rectangular chamber design, while a batch furnace describes the way components are processed in fixed loads rather than continuously. Most industrial box furnaces are batch furnaces.

Should I choose a gas-fired or electric furnace?

It depends on your site, process and running costs. Gas-fired furnaces typically offer lower operating costs for high-temperature, high-throughput processes, while electric furnaces offer precise control and simpler installation. Caltherm manufactures both and can advise on the right option for your application.

Can Caltherm supply furnaces for aerospace heat treatment?

Yes. We manufacture furnaces designed to meet aerospace requirements, including temperature uniformity surveys and pyrometry aligned with AMS2750.

Do you offer servicing and spares for industrial furnaces?

Yes. Our in-house team provides spares, repairs and servicing for Caltherm furnaces and equipment from other manufacturers, including breakdown support, planned maintenance and

When it comes to selecting an industrial furnace, trust the experts at Caltherm to deliver superior quality, reliability and performance. Contact us today on +(44) 01782 563865 or complete the quote form below, and our team will get back to you within 24 hours.

Learn more about Things to Consider When Buying an Industrial Oven or Furnace in the UK.