LJUNGSTRÖM OEM Heritage | Genuine Products, Parts and Services

OUR OEM HERITAGE

Original Innovation.
Enduring Expertise.

For more than a century, Ljungström® products have lead innovation in heat transfer technology. Today, LJUNGSTRÖM continues that engineering legacy by supporting customers with OEM products, parts, upgrades and technical expertise developed through generations of experience.

A LEGACY OF INNOVATION

The Technology That Changed Heat Recovery

In 1920, Swedish engineer Fredrik Ljungström invented and patented the regenerative air preheater that would carry his name. The technology transformed industrial heat recovery by capturing energy from flue gas and transferring it to incoming combustion air.

What began as a pioneering invention developed into a global network of engineering, manufacturing and licensing operations. Over time, those operations evolved through changes in company names and ownership while continuing to advance Ljungström® technology.

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A CENTURY OF PROGRESS

Key Milestones in Our Journey

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1920

Fredrik Ljungström invents and patents the Ljungström® regenerative air preheater.

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1925

The Air Preheater Corporation is established in the United States to advance Ljungström® technology.

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1997

ABB acquires the global rights to Ljungström® technology and consolidates its global air preheater businesses.

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2000

Alstom assumes full ownership of the business, continuing its global engineering and manufacturing operations.

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2014

LJUNGSTRÖM becomes part of the Arvos Group.

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TODAY

LJUNGSTRÖM supports customers worldwide as the original equipment manufacturer with equipment, parts, upgrades and lifecycle expertise.

CONTINUITY THROUGH CHANGE

Ownership Changed.
The Company and its Legacy Continue.

Throughout its history, LJUNGSTRÖM has operated under the ownership of several major industrial groups. Since 2014 we have been part of the Arvos Group—carrying forward its engineering knowledge, manufacturing capabilities, technical records and commitment to supporting customers.

Today, LJUNGSTRÖM builds on that continuous foundation to provide original equipment, replacement parts, upgrades, technical support and lifecycle expertise for customers worldwide.

EXPLORE OUR HISTORY

Designed With the Complete System in Mind.

As the OEM, LJUNGSTRÖM brings unmatched depth across design, manufacturing, and support.

Engineering Knowledge

With over a century of experience in heat transfer and rotating equipment design.

Manufacturing Quality

OEM process and quality standards ensure long-term reliability and consistent performance.

Equipment Compatibility

Designed to integrate seamlessly with existing systems and deliver optimal performance.

Lifecycle Support

From engineering to parts and service, we support you across the entire equipment lifecycle.

THE DOCUMENTED RECORD

Our Heritage.
Documented.

From Fredrik Ljungström’s early patents and engineering drawings to corporate records and archival publications, the history of LJUNGSTRÖM and Ljungström® air preheater technology is preserved in primary-source materials.

Together, these records trace the development of the technology and the continuity of the company, technical knowledge and manufacturing expertise behind today’s genuine LJUNGSTRÖM equipment, parts and services.

GENUINE LJUNGSTRÖM

Know the Source of Your Products and Services

The LJUNGSTRÖM brand represents more than a century of Ljungström® air preheater engineering, manufacturing and lifecycle expertise. When selecting equipment, replacement parts or services, confirm that your supplier is genuinely affiliated with LJUNGSTRÖM.

✓ Genuine Products. Original Expertise.

Choose equipment, parts and services supported by LJUNGSTRÖM, the original equipment manufacturer of Ljungström® Air Preheaters.

VERIFY YOUR SOURCE