HERMANN TRÄXLER GMBH

What HERMANN TRÄXLER GMBH does

Hermann Träxler GmbH is a German family-owned specialist manufacturer of mechanical mixing equipment for anaerobic digesters in municipal wastewater treatment plants. Founded in 1972 in Ginsheim-Gustavsburg (Rhine-Main region) and converted to a GmbH in 2005 under the second-generation leadership of Armin and Michael Träxler, the company designs and produces ATEX-certified Faulschlamm-Mischer TMA draft tube mixers and custom Gashauben (gas hoods) for digesters up to 12,000 m³ in volume and flow rates above 6,500 m³/h. Its technology is differentiated by mechanically machined O-ring sealed gas hood flanges (replacing conventional flat-gasket designs), FEM-calculated reinforcement ribs, proprietary HT 4060 MF mixer grease with 25 years of documented performance, in-house elastomer and hard-armour coatings (up to 58 HRC), and ATEX Zone 0 certification (TÜV 05 ATEX 7157 X) held since 2005 with annual TÜV Rheinland audits.

The company operates from two adjacent facilities totalling 15,000 m² and runs a separate contract manufacturing (Lohnfertigung) brand for large-part machining outside the wastewater sector. Its revenue model combines one-time sales of custom-engineered new mixers and gas hoods (250+ new aggregates delivered worldwide over the company's history), professional services for overhauls and repairs (500+ repairs of all major mixer brands including Halberg, MAN, SIHI, Sterling, vonRoll), recurring annual ATEX maintenance contracts and proprietary spare-parts supply (HT 4060 MF grease with warranty tied to its use), and contract manufacturing. Approximately 300 service and maintenance assignments are executed annually across Germany and Europe by ATEX-certified in-house field engineers, with a long-standing operational partnership with industrial diver Tauchbetrieb S. Richter GmbH supporting underwater digester cleaning and fiber removal.

Träxler serves more than 150 municipal wastewater utilities across Germany, Austria, Switzerland, Luxembourg, Denmark, Poland, Greece, and Turkey, marketing primarily through IFAT trade fair participation (next confirmed: IFAT 2028, Hall A2 Stand 130), a multilingual website (German, English, Chinese) with downloadable technical documentation, and a direct enterprise field sales team led by named account managers. Customer outcomes documented in source data include up to double the digester biogas yield compared to systems without forced circulation, reduced residual sludge and disposal costs, and equipment operating durations of 60,000–80,000 hours between scheduled overhauls. The firm has no external investors, no parent company, and no disclosed financials.

Name

HERMANN TRÄXLER GMBH

Legal name

HERMANN TRÄXLER GmbH

Website

https://h-traexler.de

Company type

Private

Founded year

1972

Operating status

Operating

Short description

Hermann Träxler GmbH is a German family-owned specialist in ATEX-certified draft tube mixers and gas hoods for municipal wastewater anaerobic digesters, serving 150+ utilities across Europe with custom manufacturing, ATEX maintenance services, and a contract machining division.

Ownership category

akta.pro rank

Product category

Wastewater Treatment Equipment

NAICS

Other General Purpose Machinery Manufacturing (3339)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550), General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Chemical Processing Equipment (Reactors, Mixers, Agitators) (IMAHAEAA)

Keywords

• Draft tube mixers
• Wastewater treatment equipment
• Anaerobic digester mixers
• Municipal gas hoods
• Mechanical engineering services

Headquarters

HQ city

Ginsheim-gustavsburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. New Equipment Manufacturing and Sales: Design, manufacture, and sale of custom Faulschlamm-Mischer TMA draft tube mixers, gas hoods (Gashauben), draft tube pipe assemblies, and component systems. Each unit is individually engineered and manufactured to customer specifications. Over 250 new aggregates delivered worldwide.
2. Repair, Overhaul, and Retrofit Services: Scheduled inspections, overhauls (after 60,000–80,000 operating hours), repairs, and ATEX retrofits for own and third-party mixer brands (Halberg, MAN, SIHI, Sterling, vonRoll). Includes industrial diving and crane coordination, logistics, re-installation, commissioning, testing, and personnel instruction. More than 500 repairs performed.
3. Annual Maintenance and Service Contracts: Annual ATEX-compliant maintenance visits per manufacturer specifications, including on-site inspection, current/power monitoring, coupling and running smoothness checks, grease extraction/replacement with HT 4060 MF, Abspannung (guying) inspection, and personnel briefings. Customized maintenance contracts offered for draft tube mixers, large pump systems, and pumping stations.
4. Spare Parts and Consumables: Supply of proprietary mixer grease HT 4060 MF, spare parts with inventory management, procurement, new production, re-engineering, and reproduction of components.
5. Contract Manufacturing (Lohnfertigung): Large-part machining and mechanical engineering services offered under a separate brand (www.h-traexler-grossdrehteile-pumpenparatur.de), serving customers beyond the wastewater treatment sector. Janina Träxler leads the contract manufacturing division.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Hermann Träxler GmbH manufactures and services draft tube mixers (Faulschlamm-Mischer TMA) and gas hoods (Gashauben) for municipal wastewater treatment plants. The company also provides maintenance, inspection, and repair services for these products, serving more than 150 municipal wastewater utilities across Germany and Europe. Contract manufacturing (Lohnfertigung) of complex mechanical components for industrial customers is offered as a secondary service line.

Product overview

HERMANN TRÄXLER GMBH is a specialist manufacturer of industrial mixing equipment for wastewater treatment, primarily producing Faulschlamm-Mischer TMA (draft tube mixers) and Gashauben (gas hoods) as core products. The product portfolio includes specialized components for both product lines, elastomer coatings and hard surfacing for wear protection, and comprehensive service offerings covering on-site maintenance, inspection, repair, and ATEX-certified retrofits. The company operates from two facilities spanning 15,000 m² in Ginsheim-Gustavsburg, Germany, serving over 150 municipal wastewater treatment customers across Europe.

Differentiator

Problem solved

Functional benefit

Products and services

• Faulschlamm-Mischer TMA (Draft Tube Mixer) Self-manufactured draft tube mixer designed for sludge mixing in digesters of municipal wastewater treatment plants. Certified for explosive atmospheres (ATEX Zone 0). Used by municipal wastewater operators to keep digester contents in suspension and ensure homogenization.
• Gashauben (Gas Hoods) Self-manufactured gas storage hoods for digesters in municipal wastewater treatment plants. Used to store biogas produced during the sludge digestion process.
• Service und Wartung (Service and Maintenance) On-site and workshop maintenance, inspection, and repair services for the company's mixers and gas hoods, as well as third-party equipment. Performed by the company's own field service engineers.
• Revision und Reparatur (Inspection and Repair) Workshop-based inspection, overhaul, and repair services for mixers, gas hoods, and related mechanical components. Offered to municipal wastewater utilities and industrial customers.
• Lohnfertigung (Contract Manufacturing) Custom contract manufacturing of complex mechanical components and assemblies on behalf of industrial customers, leveraging the company's CNC turning and mechanical engineering capabilities.

Quantifiable outcome

• Up to double the digester gas yield compared to digesters without forced circulation
• +6 more outcomes

Named customers2 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

Feature6 records

Partnerships

One partnership is on record.

• Tauchbetrieb S. Richter GmbHcoreStrategic or Co-development PartnerTauchbetrieb S. Richter GmbH is Germany's only master craftsman business exclusively specializing in sewage treatment plants. Since 2001, it has worked in close partnership with Hermann Träxler GmbH on faulturm (digester) emptying, cleaning, and underwater maintenance operations. Services include fiber bulk removal (Verzopfung/Zopf), sediment inspection, video documentation, and preparation work for Träxler mixer servicing — saving treatment plants costly full digester emptying. All diving work is performed under DGUV 40 and DGUV 201-034 regulations for contaminated water. Operations in Germany and neighboring EU countries.

Scale indicators11 records

Recent moves7 records

Expansion highlights4 records

Market position

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 HERMANN TRÄXLER GMBH