
Technical wholesale and hose assembly specialist for sewer cleaning, sewer rehabilitation, industrial and ultra-high-pressure technology up to 6,000 bar.

Hugo Frauenhof GmbH Hilden
Hilden, DENew on Amplifa
About Hugo Frauenhof GmbH
Hugo Frauenhof GmbH is a family-run technical wholesale business for industrial supplies and environmental technology based in Hilden. The core of its services are sewer cleaning, hose and ultra-high-pressure technology as well as sewer rehabilitation, complemented by industrial and suction hoses, pneumatic conveying system accessories and personal protective equipment. In its own workshop, hoses are assembled, fittings are inserted and re-crimped, and nozzles are fitted to match vehicle and pump — also on site. Three ultra-high-pressure test benches test and certify HP lines up to 6,000 bar; rubber hose lines are tested in accordance with T002 of BG RCI. Over 2,600 m² of warehouse space enable deliveries in under 24 hours; customers are served in Germany, Europe and countries in Asia, North and South America. The energy supply is almost fully self-sufficient via photovoltaics; since November 2023 the company has been Ökoprofit-certified.
- Site
- Hilden
- Processes
- Ultra-high-pressure testing service (testing and certification of HP lines up to 6,000 bar), Re-crimping of fittings on hoses, Laser engraving of HP lines according to customer requirements, Nozzle fitting matched to vehicle/pump (also on site), Maintenance, inspection and repair of PPE (including gas detection devices and fall protection PPE), Hose line assembly (ultra-high pressure, industrial, sewer cleaning), Ultra-high-pressure testing service up to 6,000 bar with test certificates, Hose testing in accordance with T002 of BG RCI
- Materials
- Rubber (hoses), Plastic (PVC, PUR and Buna spiral hoses), PUR (highly abrasion-resistant inner layer), UHMWPE (chemical hose inner tube), NBR (oil-resistant tank truck hoses), EPDM (water hoses), BRAWO resin (inversion liner rehabilitation), CarboLith resin system (short liner rehabilitation)
- Certificates
- Ökoprofit, Test certificates for HP lines (up to 6,000 bar), Hose testing in accordance with T002 of BG RCI, Ökoprofit certification (2023), ISO 9001
- Founded
- 1887
- Employees
- 40+
- Industries
- Sewer cleaning, Sewer rehabilitation, Water jet technology / ultra-high-pressure technology, Industrial cleaning, Waste disposal, Agriculture
- 01
Consulting and problem solving
- 02
Assembly of hose lines
- 03
Laser engraving
- 04
Ultra-high-pressure testing and certification
- 05
Nozzle fitting
- 06
Delivery in under 24 hours
Materials and Products
EPDM
For water hoses in industrial and sewer cleaning applications.
NBR
Oil-resistant inner layer for tank truck hoses.
PUR
Highly abrasion-resistant inner layer for hoses with abrasive conveyed media.
UHMWPE
Inner tube of chemical hoses for aggressive media.
Plastic spiral hoses (PVC, PUR, Buna)
For water, wastewater and chemically stressed media.
Rubber spiral hoses
Tank truck hoses, chemical hoses and super suckers for industry and waste disposal.
Ultra-high-pressure hoses (Parker Polyflex, HFH PowerJet)
For water jet applications up to 4,000 bar, supplied ready to install.
BRAWO resin system
Reactive resin for trenchless inversion liner rehabilitation.
CarboLith resin system
Resin system for short liner rehabilitation of locally limited sewer damage.
Willkat resin system
Resin system for short liner rehabilitation.
Glass fiber laminate
Resin-impregnated laminate for repairing pipe damage from the inside.
Location

Hilden
DEHead office with office, warehouse (over 2,600 m²), ultra-high-pressure assembly department and test benches
- Materials
- Ultra-high-pressure hoses, rubber and plastic spiral hoses, sewer flushing hoses, cassette boom hoses
- 3 ultra-high-pressure test benches up to 6,000 bar
- Laser engraving system
- Hose press / crimping unit
Products and Components




Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Ultra-high-pressure testing service (testing and certification of HP lines up to 6,000 bar)Testing | – | – | – | – | Ultra-high-pressure hoses, HP lines |
| Testing | – | – | – | – | Rubber hose lines |
| Assembly | – | – | – | – | Parker Polyflex ultra-high-pressure hoses, HFH PowerJet rubber hoses, Rubber spiral hoses, Plastic spiral hoses, Sewer flushing hoses, Cassette boom hoses |
| Re-crimping of fittings on hosesJoining | – | – | – | – | Hoses, Fittings |
| Laser engraving of HP lines according to customer requirementsSurface | – | – | – | – | HP lines |
| Nozzle fitting matched to vehicle/pump (also on site)Assembly | – | – | – | – | – |
| Maintenance, inspection and repair of PPE (including gas detection devices and fall protection PPE)Testing | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Ultra-high-pressure test bench | – | 3 | Testing of HP lines up to 6,000 bar | – | Hilden |
| Laser engraving system (in-house laser) | – | 1 | – | – | Hilden |
| Hose press / crimping unit (re-crimping of fittings) | – | – | – | – | Hilden |
Additional services
Quality and Testing
HP lines are tested on three ultra-high-pressure test benches up to 6,000 bar and provided with test certificates stored for each hose. Rubber hose lines are tested in accordance with T002 of BG RCI — before initial commissioning, periodically and on request on site.
| Evidence | Hilden |
|---|---|
| Test certificates for HP lines (up to 6,000 bar) | |
| Hose testing in accordance with T002 of BG RCI | |
| Ökoprofit certification (2023) | |
| ISO 9001 |
History
- 1887
Foundation of Theodor Hugo Frauenhof as a 'fine tannery and shaft factory'
- 1945
Expansion into a technical wholesale business for industrial supplies
- 1957
Gottfried Osten joins the company
- 1958
Expansion into environmental technology: distribution of hoses, fittings and hose assembly
- 1965
Continuation as Frauenhof KG (Susanne Frauenhof as general partner, Osten as limited partner)
- 1992
Gottfried Osten takes over all ownership shares
- 1995
New construction of an office and warehouse building with approx. 1,000 m² of warehouse space at today's location
- 1998
Ingrid Osten and Walter Laschet become managing directors
- 2001
Construction of a 2nd warehouse with an additional 1,100 m²
- 2007
Petra Osten-Laschet becomes managing director; construction of a 3rd warehouse with 420 m²
- 2012
125th company anniversary and new corporate identity
- 2013
Petra Osten-Laschet becomes majority shareholder; discontinuation of the shoemaker supplies division
- 2014
Commissioning of a photovoltaic system for full energy supply
- 2018
Expansion of the PV system with an industrial storage system; expansion of warehouse space
- 2022
Death of Gottfried Osten
- 2023
Ökoprofit certification; Walter, Sascha-Dominique and Dr. Fabio-Yannick Laschet become partners
- 2024
Expansion of further office space