Old roots. New growth.

Our Brands

For nearly a century, our companies have stood for engineering excellence, manufacturing depth, and tailor-made solutions in apparatus and heat exchanger construction. Under the roof of ZILONIS, traditional specialists and young technology units unite into a strong industrial group for demanding thermal and process engineering applications.

Our brands cover the entire spectrum of heat transfer, apparatus construction, special materials, and plant components – from the energy and chemical industry to pharma, food, and environmental technology.

Mit dem Laden des Videos akzeptieren Sie die Datenschutzerklärung von YouTube.

IGEFA WEINBRENNER

Shell-and-tube heat exchangers & engineeringSince 1954 · Hof

IGEFA WEINBRENNER is a leading manufacturer of shell-and-tube heat exchangers and has stood for well-founded engineering expertise in industrial heat transfer for over 70 years. The company develops customer-specific heat exchanger solutions – from thermal design to the finished apparatus construction. A particular focus lies on process-safe design, proprietary calculation software, and the realization of complex special solutions for demanding operating conditions.

Core competencies: Shell-and-tube heat exchangers · Thermodynamic design & engineering · Special constructions · Heat transfer for industrial processes

Markets: Energy and power plant technology, chemicals & petrochemicals, food and beverage industry, environmental and process engineering.

XELSION

Plate heat exchangers & compact systemsSince 2019 · Hof

XELSION is the group's technology unit for plate heat exchangers (PHE) and compact heat transfer systems. The brand stands for modern, energy-efficient solutions and the targeted expansion of innovative heat exchanger technologies within ZILONIS. XELSION develops modular systems for heating, cooling, heat recovery, and process integration.

Core competencies: Plate heat exchangers · Compact heat exchanger systems · Energy-efficient solutions · Modular industrial applications

Markets: Building and energy technology, industrial process heat, food industry, renewable energies, environmental technology.

ACHENBACH + DEUKER

Feedwater technology & deaeratorsSince 1933 · Siegen

ACHENBACH + DEUKER is an experienced specialist for feedwater tanks, deaerators, and pressure-bearing systems. The company has been established for decades in power plant and plant engineering and complements the group especially in service, modernization, and spare parts. The focus is on durable, reliable solutions for water and steam systems.

Core competencies: Feedwater tanks · Deaerator systems · Pressure vessels · Spare parts and modernization business

Markets: Power plants, energy generation, industrial steam systems, plant engineering, utility companies.

EUGEN BÜDENBENDER

Large-scale vessels & rubber-lined apparatusSince 1948 · Netphen

EUGEN BÜDENBENDER specializes in the construction of large-scale vessels and rubber-lined apparatus. The company expands the ZILONIS group with large-scale manufacturing capacity and high material and corrosion protection expertise. Focus areas are special vessels for aggressive media and large-volume industrial applications.

Core competencies: Large-scale vessel construction · Rubber-lined apparatus · Special vessels · Corrosion protection solutions

Markets: Chemical industry, pharmaceutical industry, water and environmental technology, energy sector, raw materials industry.

DELLER

Safety & sterile heat exchangersSince 1926 · Siegen

DELLER is an established manufacturer of safety and sterile heat exchangers for sensitive processes. The systems are designed for maximum product safety, leak protection, and hygienic design. With DELLER, ZILONIS serves highly regulated industries with the highest requirements for process safety and quality.

Core competencies: Sterile heat exchangers · Safety heat exchangers · Hygienic design · Special solutions for sensitive media

Markets: Pharmaceutical industry, chemicals, biotechnology, food and beverage industry, fine chemicals.

AST Advanced Welding

Special materials & high-end welding technologySince 2003 · Wilnsdorf

AST Advanced Welding is the ZILONIS group's material and welding technology center. The company specializes in processing nickel-based alloys, duplex steels, and titanium. AST realizes highly complex assemblies and enables the use of state-of-the-art materials in apparatus and heat exchangers.

Core competencies: High-end welding technology · Special materials · Complex welded assemblies · Material and manufacturing know-how

Markets: Chemicals & petrochemicals, pharma, energy and hydrogen technology, offshore, plant engineering.

BAM Apparatebau

Large apparatus & filter systemsSince 2005 · Kürten

BAM Apparatebau specializes in manufacturing large apparatus, filters, and hoods for the chemical and process industry. The company realizes customer-specific apparatus for complex process requirements.

Core competencies: Large apparatus construction · Filter apparatus · Hoods and special constructions · Apparatus construction for chemical plants

Markets: Chemical industry, environmental technology, process engineering, special plant engineering, exhaust and process technology.

QUAST Anlagentechnik

Special apparatus & columnsSince 1958 · Eschweiler

QUAST Anlagentechnik is an experienced manufacturer of special apparatus, columns, and large-scale plant components. The company stands for individual constructions, high manufacturing depth, and the realization of complex projects.

Core competencies: Special apparatus · Column construction · Large-scale components · Apparatus and plant engineering

Markets: Chemicals and petrochemicals, refinery technology, energy sector, plant engineering, environmental technology.

A whole made from individual parts

ZILONIS is the result of uniting different brands, all pursuing a shared goal: shaping a more sustainable future. Each brand contributes its unique expertise to the overall success of the corporate group.

Learn more about ZILONIS