düma rippenrohre

What düma rippenrohre does

Düma Rippenrohre GmbH is a privately held German specialty manufacturer of rolled finned tubes and finned-tube heat exchangers, founded in 1975 and headquartered at Fraunhoferstr. 12 in Mannheim, Germany. The company produces bi-metal finned tubes (aluminum fins rolled onto a different-material inner tube), mono-metal finned tubes in aluminum or copper, corrugated base finned tubes in steel or stainless steel, spiral finned tubes, and custom-designed finned-tube heat exchangers. Manufacturing relies on a proprietary rolling process analogous to thread rolling, which mechanically bonds thermally conductive fins to a core tube and produces roll hardening (Walzverfestigung) that yields durable, corrosion-resistant, hermetically sealed products; the company reports 64 in-house developed and continuously optimized production facilities worldwide.

The company's commercial model is direct and quote-based: customers submit specifications via email ([email protected]) or phone, and Düma designs, plans, and manufactures custom solutions to order. Pricing is not publicly disclosed; contracts are described as multi-year. Products serve industrial equipment manufacturers and end-users across gas cooling, gas heating, process cooling, air cooling, cooling towers, gas condensers, dry heating systems, and wood drying applications, and the company ships globally. Customers value optimal heat transfer, mechanical durability, and corrosion resistance in demanding industrial environments.

Düma is led by Managing Director (Geschäftsführer) Rainer Dürrenberger and operates as a GmbH with no disclosed external investors, parent entities, or subsidiaries. There is no public funding history, no patent portfolio, no disclosed certifications, and no social media presence; the only public-facing surface is a bilingual (German/English) company website. Pricing, revenue, and headcount figures are not publicly disclosed.

Name

düma rippenrohre

Legal name

Düma Rippenrohre GmbH

Website

https://duema-fintube.de

Company type

Private

Founded year

1975

Operating status

Operating

Short description

Düma Rippenrohre GmbH is a privately held Mannheim-based manufacturer, founded in 1975, that produces rolled finned tubes (bi-metal, mono-metal, corrugated base, spiral) and custom finned-tube heat exchangers for industrial gas cooling, heating, process cooling, air cooling, cooling tower, condenser, and wood drying applications worldwide.

Ownership category

akta.pro rank

Product category

Industrial Heat Transfer Equipment

NAICS

Power Boiler and Heat Exchanger Manufacturing (332410), Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (33121)

SIC

Steel Pipe & Tubes (3317)

akta.pro primary industry

Heat Exchangers & Thermal Transfer Equipment (IMAHAKAC)

Keywords

• Finned tubes
• Heat exchangers
• Industrial heat transfer
• Spiral finned tubes
• Bimetal fin tubes

Headquarters

HQ city

Mannheim

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D

Revenue model

1. Finned Tube Products: Manufacture and sale of finned tubes (Rippenrohre), finned tube heat exchangers, and spiral finned tubes. Products are sold with customization options including specific dimensions, materials, and installation-ready delivery.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Düma Rippenrohre GmbH manufactures rolled finned tubes (Rippenrohre), finned-tube heat exchangers, and spiral finned tubes using a proprietary rolling process. The company produces bi-metal, mono-metal, and corrugated base finned tubes in customized dimensions, materials, and configurations for industrial heat transfer applications including gas cooling, gas heating, process cooling, air cooling, cooling towers, gas condensation, and wood drying systems.

Product overview

Düma Rippenrohre GmbH is a finned tube manufacturer offering a portfolio of rolled finned tubes and heat exchangers. The product line centers on Bi-Metal Finned Tubes (with aluminum-finned inner tubes for customized material selection), Mono-Metal Finned Tubes (single-material aluminum or copper construction), and Corrugated Base Finned Tubes (for high-flexibility applications). These finned tubes serve as the core components for custom finned tube heat exchangers. The company also produces spiral finned tubes using a proprietary rolling process. Products are manufactured in-house with 64 production facilities worldwide and are used in industrial heat transfer applications including gas coolers, gas heaters, process coolers, air coolers, cooling towers, gas condensers, and dry heating systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Bi-Metall-Rippenrohre (Bi-Metal Finned Tubes)
• Mono-Metall-Rippenrohre (Mono-Metal Finned Tubes)
• Wellenfuss-Rippenrohre (Corrugated Base Finned Tubes)
• Rippenrohr-Wärmetauscher (Finned Tube Heat Exchangers)
• Spiralrippenrohre (Spiral Finned Tubes)

Quantifiable outcome

• Optimal heat exchange achieved through perfect contact between inner tube and fins
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves3 records

Expansion highlights3 records

Direct peers

• Wieland-Werke: German-based manufacturer of copper, brass and specialty metal tubes, including finned and heat-exchanger tubes, serving industrial OEMs and heat exchanger builders with comparable custom-engineered products to Düma's finned tube portfolio.
• Wolverine Tube: Specialized North American finned tube producer serving HVAC, refrigeration, and industrial heat exchanger markets; directly comparable to Düma as a component-level finned tube manufacturer with engineered, custom-configured offerings.
• API Heat Transfer: US-based manufacturer of heat exchangers, including shell-and-tube, plate, and finned designs; competes with Düma in industrial heat transfer applications and serves similar OEM and end-user customers.

Broad incumbents

• Sandvik Materials Technology: Large industrial materials group producing stainless steel and special alloy tubes used in heat exchangers and process equipment; overlaps with Düma in heat-exchanger tube supply but at much broader scale and portfolio breadth.
• Alfa Laval: Global leader in heat transfer, separation, and fluid handling, with a broad heat exchanger portfolio (plate, gasketed, brazed, finned) that overlaps with Düma at the component level while serving much larger end-customer programs.
• Kelvion: Industrial heat exchanger specialist (formerly SPX Heat Transfer) serving power, oil & gas, chemical, and HVAC markets; a broad incumbent whose finned and shell-and-tube product lines overlap directly with Düma's finned tube offerings.
• Modine Manufacturing: Established manufacturer of heat transfer technology for HVAC, industrial, and vehicle applications, with a broad portfolio that includes finned coil products comparable to Düma's finned tubes and heat exchangers.
• Xylem: Global water technology company with significant heat exchanger and thermal management offerings through its Bell & Gossett and Standard Xchange brands; broader portfolio than Düma but overlapping in industrial heat transfer components.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 düma rippenrohre