TENOVA LOI THERMPROCESS

What TENOVA LOI THERMPROCESS does

Tenova LOI Thermprocess (legal entity: LOI Thermprocess GmbH) is a German engineering company headquartered in Duisburg that designs and supplies industrial furnace systems for the heat treatment of metals. It is a wholly-owned subsidiary of Tenova, which in turn sits within the Techint Group. The company's core product platform comprises DCL® (Decarburizing and Nitriding Line) furnaces for grain oriented (GO) silicon steel, ACL® (Annealing and Coating Line) continuous processing lines for non-grain oriented (NGO) electrical steel, the al-loi® heat treatment range for aluminum melting and recycling, roller hearth furnaces for tubes, bars, and wire coils, railway wheel heat treatment, and a CGL cooling system for Advanced High-Strength Steel. It also offers Modernization, Service & Spare Parts alongside Digital & Automation Solutions that embed mathematical process-control models into furnace PLCs to optimize annealing accuracy and energy use.

The business operates as a project-based, custom-engineered capital equipment supplier to large steel, aluminum, and automotive manufacturers globally. Revenue is generated through one-time equipment sales on multi-year installation cycles, with customers including Ansteel Group, Sanbao Group, a leading Southern China steel producer, and DMV (Cogne Acciai Speciali). Delivery in China is executed through a joint collaboration with Tenova Technologies (Tianjin), which provides local engineering and execution capabilities. The company also participates in EU-funded sustainability initiatives such as the LIFE H2Reuse hydrogen recovery project, positioning its portfolio within industry decarbonization and electric-vehicle supply chain buildouts.

The firm is privately held with 23 direct employees, reflecting a lean engineering and project management nucleus that operates within the broader Tenova Group, which absorbs most heavy manufacturing, construction, and after-sales execution. Leadership transitioned in November 2025 with Dr. Krzysztof Hornig (formerly of Andritz Metals) appointed CEO, while Matthias Gogollok continues as CFO. The go-to-market is enterprise field sales, augmented by trade show presence (Aluminium China, Galvatech 2026, WMM 2026, SEAISI) and technical conference presentations. Pricing is not publicly disclosed; contracts are negotiated per project based on specifications, capacity, and scope of supply.

Name

TENOVA LOI THERMPROCESS

Legal name

LOI Thermprocess GmbH

Website

https://loi.tenova.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Tenova LOI Thermprocess designs and supplies industrial furnace systems for heat treatment of metals, serving global steel, aluminum, and automotive manufacturers from its Duisburg headquarters as part of the Tenova Group.

Ownership category

akta.pro rank

Product category

Industrial Furnace Systems

NAICS

Industrial Process Furnace and Oven Manufacturing (333994)

SIC

Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Industrial Furnaces, Kilns & Thermal Processing Equipment (IMAHAEAE)

akta.pro secondary industry

Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

Keywords

• Industrial furnace systems
• Heat treatment equipment
• Silicon steel production
• Aluminum processing lines
• Annealing and coating lines

Headquarters

HQ city

Duisburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Industrial Furnace Systems Supply: Design, supply, and commissioning of industrial furnace systems for heat treatment of metals. Revenue is generated through large project-based equipment sales to steel, aluminium, and automotive manufacturers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Tenova LOI Thermprocess designs, engineers, and supplies industrial furnace systems for the heat treatment of metals, including DCL® (Decarburizing and Nitriding Lines) and ACL® (Annealing and Coating Lines) for silicon steel production, al-loi® heat treatment solutions for aluminum processing, and roller hearth furnaces for tubes, bars, and wire coils. The company also delivers modernization services, spare parts, and digital/automation solutions including intelligent process control for furnace operations.

Product overview

TENOVA LOI THERMPROCESS is a leading provider of industrial furnace systems for the heat treatment of metals, operating as part of the Tenova Group. The company offers a comprehensive portfolio centered on DCL® (Decarburizing and Nitriding Lines) and ACL® (Annealing and Coating Lines) for silicon steel production, along with al-loi® Heat Treatment solutions for aluminum processing. Additional offerings include roller hearth furnaces for tubes, bars, and wire coils, railway wheels processing, melting and recycling solutions, and modernization services. The company also provides Digital & Automation Solutions incorporating intelligent process control systems with mathematical models for furnace optimization. Products serve the steel, aluminum, and automotive industries worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• DCL® (Decarburizing and Nitriding Line) Industrial furnace system for heat treatment of grain oriented (GO) silicon steel, enabling decarburizing and nitriding processes for electromagnetic cold-rolled silicon steel production. Used by GO silicon steel producers worldwide.
• ACL® (Annealing and Coating Line) Continuous processing line for annealing and coating of silicon steel strip, designed for high annealing temperatures, high H2 content in process gas, and high strip processing speed. Used for both NGO and GO electrical steel production with highest surface quality and best magnetic properties.
• al-loi® Heat Treatment Solutions Heat treatment solutions for aluminum processing, including melting, recycling, and thermal processes for aluminum production, enabling decarbonization of cast house operations.
• Melting and Recycling Solutions Industrial furnace systems for aluminum melting and recycling operations, enabling decarbonization of cast house operations and sustainable aluminum production.
• Roller Hearth Furnaces Industrial furnaces for heat treatment of tubes, bars, and wire coils in steel processing operations.
• Railway Wheels Processing Heat treatment solutions for railway wheel manufacturing.
• Modernization, Service & Spare Parts Upgrading, maintenance, and spare parts services for existing industrial furnace systems, including modernization programs such as hydrogen recovery solutions for energy efficiency and decarbonization.

Quantifiable outcome

• Enabled Ansteel Group to achieve full coverage of electrical steel grades at Silicon Steel Division
• +1 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature5 records

Partnerships

Five partnerships are on record, tiered core, strategic and flagship.

• Tenova Technologies (Tianjin)coreTechnology or Integration · 7 September 2024Joint collaboration for design, supply and commissioning of Annealing and Coating Lines (ACL) for NGO silicon steel projects in China. Tenova Technologies (Tianjin) provides local engineering and execution capabilities while LOI Thermprocess provides furnace technology expertise.
• DMV (Cogne Acciai Speciali Group)strategicStrategic or Co-development Partner · 1 July 2024EU-funded LIFE H2Reuse project partnership coordinated by DMV to develop innovative solutions for hydrogen recovery and reuse in bright annealing process for seamless stainless steel and nickel alloy tube production.
• Sanbao GroupflagshipStrategic or Co-development PartnerLong-term strategic partnership for silicon steel production. Sanbao Group's entry into silicon steel production with three ACL lines represents a major greenfield project for high-grade NGO electrical steel in Southeast China.
• Ansteel GroupflagshipStrategic or Co-development PartnerPartnership for supply of ACL Annealing Furnace for NGO electrical steel strip production as part of Ansteel's new energy construction project. Enables Ansteel to achieve full coverage of electrical steel grades.
• Leading steel producer in Southern ChinaflagshipStrategic or Co-development PartnerSupply of three Decarburizing and Nitriding Lines (DCL) for grain oriented silicon steel for Phase II expansion project. Represents competitive flagship technologies preferred by leading GO silicon steel producers.

Scale indicators3 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Tenova (parent group): Parent company offering a broader metals industry portfolio (Consteel® EAF, TAKRAF bulk handling, melt shops, rolling mills) — while Tenova LOI is part of Tenova, the broader group itself is a peer in adjacent metals equipment categories and a competitor on bundled project bids.
• Primetals Technologies: Joint venture of Mitsubishi Heavy Industries and partners providing integrated metallurgical plants, including heat treatment and processing furnaces for flat products, silicon steel, and stainless steel. Competes on global greenfield steel projects.
• Fives Group: French industrial engineering group with a strong Metals division offering reheating furnaces, heat treatment lines, and aluminum processing equipment. Overlaps with Tenova LOI's al-loi® aluminum business and steel heat treatment offerings.
• SMS group: Global metallurgical plant builder offering heat treatment furnaces as part of a broader integrated steel mill portfolio (melt shops, rolling mills, processing lines). Competes with Tenova LOI on bundled greenfield projects and on standalone furnace retrofits.
• Danieli: Italian-based global supplier of equipment and plants for the metals industry, including heat treatment furnaces, rolling mills, and continuous casting lines. Competes for large-scale steel mill and processing line contracts, particularly in Asia and Europe.

Direct peers

• Inductotherm Group: Global supplier of induction melting, heating, and heat treatment systems for metals, overlapping with Tenova LOI in metal heat treatment furnaces. Strong in North America and increasingly in Asia.
• Andritz Metals: Andritz Metals' Industrial Furnaces Division is the most direct head-to-head competitor in heat treatment furnaces for silicon steel, stainless steel, and aluminum — overlapping product portfolio and customer base. Notably, Tenova LOI's new CEO was previously head of this division, underscoring the strategic parity between the two.
• Otto Junker: German specialist in industrial melting and heat treatment furnaces for steel, aluminum, and copper, including induction and resistance furnaces. Direct niche competitor, particularly in European steel and non-ferrous heat treatment markets.
• Thermprocess / Induga (Indugas): Specialist industrial furnace engineering firms in Germany serving European steel, aluminum, and forging customers with heat treatment, annealing, and forging furnaces. Direct regional competitors in DACH markets.

Regional players

• Nippon Steel Engineering: Engineering arm of Nippon Steel providing heat treatment furnaces, continuous galvanizing lines, and other steel processing equipment, primarily serving the Japanese domestic market but also exporting. Competes in Asia for high-grade silicon steel and galvanizing lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/tenovaloi
• YouTubeyoutube.com/channel/UCfKAovfvWqbofRCYSjQQD5w
• LinkedInlinkedin.com/company/tenova-loi-thermprocess

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about TENOVA LOI THERMPROCESS