Manufacturer of sealing systems for cable, pipe and building entries with around 3,000 products in its range
Hauff-Technik GmbH & Co. KG
Hermaringen (company headquarters) · Heidenheim (customer centre/technical centre)New on Amplifa
About Hauff-Technik
Hauff-Technik GmbH & Co. KG, based in Hermaringen (Baden-Württemberg), is a manufacturer of sealing systems for cables, pipes and building entries. The product range comprises around 3,000 items, including cable entry systems (HSI150/HSI90, KES150/KES90), sleeve pipes, annular space seals, developer packages, fibre optic handover systems, foundation pipes and the Universal Charging Station Foundation (ULF) made of polymer concrete. Products are manufactured in stainless steel A2 and A4 in accordance with DIN 18533, with elastomer seals made of EPDM as well as in polymer concrete and cement composite pipe technology. In addition to the standard programme, the company supplies custom-made products, for example an individual fixed/loose flange sleeve pipe with a length of over 8 m and 32 pipe stubs. Customers come from the energy sector, construction industry, telecommunications, industry and electromobility; the product range is on the market in over 40 countries. The company employs 630 staff with annual revenue of around €140 million (2025) and offers planning tools, BIM/CAD data, planning support and a nationwide installation service.
- Site
- Hermaringen
- Processes
- Custom-made products to measure, Planning support for architects and specialist planners, Training/webinars in the technical centre, BIM/CAD tool for 2D and 3D drawings, Installation service (nationwide via partner VARIO-TEC), Planning tools (modernisation, heat pump, ETGAR, charging infrastructure, electrical)
- Materials
- Stainless steel A2 (1.4301-classic, A2), Stainless steel A4, EPDM, Polymer concrete, Cement composite, Stainless steel A2 (1.4301-classic), EPDM (elastomer), Cement composite pipe
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2018
- Founded
- 1955
- Employees
- 630
- Industries
- Energy supply/utility companies, Energy supply/municipal utilities, Construction companies, Installation contractors, Telecommunications, Industry
- 01
Development and design of the sealing systems using approx. 100
- 02
Manufacturing of components from stainless steel A2/A4, EPDM, polymer concrete
- 03
Custom-made production to measure including fit accuracy testing in the
- 04
Factory-side pre-assembly, e.g. closure caps on cement composite pipes or
- 05
Distribution via specialised trade, National/International sales and
- 06
Planning tools, planning support for architects and specialist planners,
- 07
Nationwide installation service through service partner VARIO-TEC including
Materials & Manufacturing
Stainless steel A2 (1.4301-classic)
For fixed/loose flange sleeve pipes for subsequent dowel-fixing to black tanks in accordance with DIN 18533, including custom-made products with a length of over 8 m.
Stainless steel A4
Used for fixed/loose flange sleeve pipes with centre flange in accordance with DIN 18533 A4, e.g. at the Tellkampfschule Hannover.
EPDM (elastomer)
Sealing material for individual closed annular space seals, e.g. HRD150 b60 A2/EPDM for micro ducts and empty conduits.
Polymer concrete
Foundation slab of the Universal Charging Station Foundation (ULF), ready for prefabrication without curing times and with factory-integrable threaded sleeves.
Cement composite pipe
Pipe material with high surface quality on the inside and a factory-premounted closure cap.
Sites
Hermaringen
DECompany headquarters and main site (since June 2014, relocation of the three previous sites)
- Part weight / size
- Manufacturing of sealing systems up to individual
- Lot size
- Standard programme and one-off pieces (custom-made products)
- Materials
- Stainless steel A2/A4, EPDM, polymer concrete, cement composite
Heidenheim
DESite with customer centre/technical centre and office (since October 2024, 2,000 m² of office space)
- Technical centre (training and testing environment, e.g. basic training on building sealing)
Products & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing | – | – | – | – | Stainless steel A2, Stainless steel A4, EPDM, Polymer concrete, Cement composite |
| Manufacturing | – | – | – | – | Stainless steel A2 |
| Manufacturing | – | – | – | – | Polymer concrete |
Additional services
Reference customers
Quality & Certification
Hauff-Technik works with an integrated management system that combines quality, environmental, occupational safety and energy management. The quality management system is certified to ISO 9001:2015 (DEKRA, certificate 80503463/9, scope: development, manufacturing and distribution of pipe and cable entries) until 29.06.2026.
| Evidence | Hermaringen |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| ISO 45001:2018 |
Company History
- 1955
Foundation of the company in Hermaringen.
- 1996
Start of continuous certification according to DIN EN ISO 9001.
- 2014
Relocation of the three previous sites to the new company headquarters in the Hermaringen industrial estate (Robert-Bosch-Straße 9, 55,000 m²).
- 2020
Company-wide introduction of the SAP ERP system; creation of an additional management level of department heads.
- 2024
Expansion by 2,000 m² of office space and customer centre (technical centre) at the Heidenheim site (Zoeppritzstraße 73).