Westfalia Metal Hoses

What Westfalia Metal Hoses does

Westfalia Metal Hoses GmbH manufactures flexible metallic pipeline systems and gas-tight decoupling elements, primarily serving global commercial vehicle OEMs as a Tier 1 supplier. Founded in 1908 in Hilchenbach, Germany, and now operating under Hamaton Automotive Technologies following a 2019 acquisition, the company runs four production facilities in Germany, Czech Republic, China, and the USA, employing 501-1000 people. The company claims approximately 50% global market share in commercial vehicle gas-tight decoupling, with products present in nearly every second commercial vehicle worldwide. The product portfolio centers on the patented GTH gas-tight decoupling hose (launched 2013) and its fourth-generation GTH4 successor (launched 2025), complemented by wrapped metal hoses (Wickelschlauche), precision pipelines in diameter range D50-D150, and integrated system assemblies combining decoupling elements, pipes, thermal insulation, and custom connection techniques.

Core technology rests on proprietary continuous forming, rounding, and welding processes that produce thin-walled, helically welded gas-tight hulls with high mechanical and torsional strength. The GTH4 introduces an Inside-Out design positioning the gas- and liquid-tight membrane internally, reducing AdBlue crystallization risk, improving exhaust stream mixing, and enabling compliance with Euro-7, Tier 5, Stage 6, EPA 2027, and Bharat 7 emissions standards across diesel, gas, and hydrogen powertrains. The technology is protected by patents on the continuous damping concept and the continuous forming/rounding/welding process.

The business model is hardware sales of custom-manufactured components and system assemblies to enterprise OEM customers under multi-year contracts. Pricing is project-specific with no public price list. Go-to-market is anchored by direct field-sales relationships with OEMs, supplemented by industry trade fair participation and co-development partnerships with research institutions including RWTH Aachen University and Karlsruhe Institute of Technology. Customers span on-road commercial vehicles (primary segment), off-road vehicles (construction, agriculture, mining), passenger vehicles, and industrial applications, with revenue concentrated in Tier 1 OEM supply for commercial vehicle exhaust systems.

Name

Westfalia Metal Hoses

Legal name

WESTFALIA Metal Hoses GmbH

Website

https://westfalia-mh.com

Company type

Private

Founded year

1908

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Westfalia Metal Hoses manufactures patented gas-tight decoupling elements and flexible metal hoses for global commercial vehicle OEMs, claiming approximately 50% global market share across four production sites in Germany, the Czech Republic, China, and the USA.

Ownership category

akta.pro rank

Product category

Automotive Exhaust Components

NAICS

Fabricated Pipe and Pipe Fitting Manufacturing (332996), Other Metal Valve and Pipe Fitting Manufacturing (332919)

SIC

Steel Pipe & Tubes (3317)

akta.pro primary industry

Automotive Refrigerant Lines, Hoses & Thermal Plumbing (IMACALAG)

akta.pro secondary industry

Pipe & Tube Manufacturing (Seamless & Welded OCTG/Line Pipe/Structural Tube) (IMAKABAI)

Keywords

• Flexible metal hoses
• Gas-tight decoupling elements
• Exhaust system components
• Commercial vehicle supplies
• Industrial flexible piping

Headquarters

HQ city

Hilchenbach

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sale of Components and System Assemblies: Westfalia Metal Hoses generates revenue through the manufacture and direct sale of specialized flexible metallic components and complex system assemblies to commercial vehicle OEMs and industrial customers. Revenue is derived from long-term supply contracts with vehicle manufacturers, including the GTH gas-tight decoupling elements, wound hoses, and pipe assemblies, as well as fully assembled exhaust systems. The company operates as a Tier 1 supplier.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Westfalia Metal Hoses manufactures and supplies flexible metallic pipeline systems — principally the patented GTH and GTH4 gas-tight decoupling elements, band-wrapped metal hoses (Wickelschläuche), and precision pipelines (Rohrleitungen) — as Tier 1 components to commercial vehicle OEMs and industrial customers. These building blocks are integrated into fully assembled exhaust system modules and other complex assemblies delivered directly to enterprise customers in the on-road, off-road, passenger vehicle, and industrial sectors.

Product overview

Westfalia Metal Hoses is a specialist for flexible and gas-tight connections for commercial vehicles and industrial applications. The product portfolio centers on three core product lines: the GTH and GTH4 gas-tight decoupling hoses (patented technology), flexible wrapped hoses (Wickelschläuche), and precision pipelines (Rohrleitungen). These components form the foundation for complete system assemblies (Systembaugruppen) that integrate decoupling elements, bent pipes, thermal insulation, and custom connection techniques into complete exhaust line solutions. The company serves the vehicle technology sector (on-road, off-road, and passenger vehicles) as well as industrial applications.

Differentiator

Problem solved

Functional benefit

Brands

• GTH: Gasdichter Schlauch (gas-tight hose) - decoupling element for exhaust systems in on-road and off-road vehicles, featuring a patented continuous damping concept with superior flexibility.
• GTH4

Products and services

• GTH (Gasdichter Schlauch) Gas-Tight Decoupling Hose Patented, globally unique gas-tight decoupling element for exhaust systems in on- and off-road vehicles. Based on a thin-walled, helically welded profile, it offers superior flexibility combined with mechanical and torsional strength as an alternative to conventional metal bellows, with a continuous damping concept that prevents resonance excitation under engine vibration.
• GTH4 Gas-Tight Decoupling Hose (latest generation) Fourth-generation gas-tight decoupling hose featuring an Inside-Out design with the gas- and liquid-tight membrane on the inside, continuous damping to prevent resonance, 100% stainless steel construction, and compliance with EURO-7, Tier 5, Stage 6, EPA 2027, and Bharat 7 standards. Suitable for diesel, gas, and hydrogen engines in commercial vehicles and industrial applications.
• Wickelschläuche (Wrapped Metal Hoses) Band-wrapped flexible metal hoses offering highest flexibility, excellent protection against heat and corrosion, and high mechanical stability. Available in variants including protection hoses, extraction/blower/conveyor hoses, liner flex hoses, and square hoses, for cable and line protection as well as media transport in industrial settings.
• Rohrleitungen (Pipelines) Precisely manufactured pipeline components including exhaust pipes, air intake pipes, turbocharger pipes, and end pipes in diameters D50 to D150, with options for bending, welding, and custom finishing. Used in commercial vehicle and industrial exhaust and air handling systems.
• Systembaugruppen (System Assemblies) Complete system assemblies combining gas-tight decoupling elements (GTH/GTH4), flexible metal hoses, bent pipelines, thermal insulation, and custom connection techniques into integrated exhaust system solutions tailored to individual customer specifications.

Quantifiable outcome

• CO₂ emissions reduced by up to 27.9% through exclusive use of stainless steel in the GTH4
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered minor.

• RWTH Aachen UniversityminorStrategic or Co-development PartnerResearch and development partnership with RWTH Aachen University, one of Europe's leading technical universities, for joint innovation in forming and joining technologies.
• Karlsruhe Institute of Technology (KIT)minorStrategic or Co-development PartnerResearch and development partnership with KIT for innovation collaboration, particularly in engineering and technology development.
• Kompetenzzentrum SiegenminorStrategic or Co-development PartnerPartnership with the regional Competence Center in Siegen, Germany, supporting innovation and technology transfer in the company's home region.

Scale indicators4 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Eberspächer: Large Tier 1 supplier of complete vehicle exhaust and thermal systems; overlaps with WESTFALIA's exhaust system assemblies but across a broader portfolio.
• Forvia (Faurecia): Major Tier 1 supplier of clean mobility and exhaust systems for automotive OEMs; a broad incumbent whose exhaust portfolio overlaps with WESTFALIA's components.
• Hutchinson (TotalEnergies): Manufactures vehicle fluid transfer, hoses, and anti-vibration systems for automotive OEMs, overlapping in flexible connection and vibration-damping applications.
• Bosal: Manufactures exhaust systems and components for automotive and commercial vehicles, competing in adjacent exhaust-line products.
• Tenneco (Walker/Clean Air): Global manufacturer of exhaust and emission-control systems for on- and off-road vehicles, a major incumbent in the exhaust value chain WESTFALIA supplies into.

Direct peers

• BOA Group: Produces flexible metal hoses, decoupling elements, and expansion joints for automotive exhaust and industrial applications, directly overlapping WESTFALIA's core product lines.
• Katcon: Produces exhaust systems, flexible tubes/couplings, and clean-air components for on- and off-road vehicles, overlapping WESTFALIA's decoupling and flexible pipe niche.
• Senior Flexonics (Senior plc): Manufactures flexible metal components, bellows, and exhaust/thermal management products for commercial and passenger vehicles, competing in the same decoupling and metal-forming space.
• Witzenmann: German manufacturer of flexible metallic elements including metal hoses, expansion joints, and decoupling elements for automotive exhaust and industrial use — the closest direct competitor in the same niche.

Others

• Proventia: Finnish emission-control and exhaust aftertreatment specialist listed as a WESTFALIA industry partner; adjacent ecosystem player in exhaust systems.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/westfaliametalhoses

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries3 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 Westfalia Metal Hoses