The AGRU Story

From the foundation till today

Mr. Alois Gruber sen.

Alois Gruber senior founded a locksmiths in Bad Hall and an anodizing company in Grünburg in 1948. The locksmith company was closed in the 1950s, the focus being placed on the anodizing business, which was extended by a powder coating and wet paint shop. These competencies are now merged today in Grünburg, Upper Austria as part of AGRU Oberflächentechnik GmbH.

Alois Gruber senior laid the cornerstone for our current market success in 1961 with the decision to commence plastic pipe production. This area has continually been built up over the years. Initially with the production of polypropylene and polyethylene, later also by the manufacture of sheets, round bars and welding rods. The first injection molds for the production of fittings for the pipe industry were commissioned in 1966.

In the following years, AGRU expanded the headquarters in Austria and opened new production sites abroad. In 1998, Mag. Alois Gruber took over the business of his father and runs AGRU since then. 

Milestones of AGRU:


1st workshop in Waldneukirchen

AGRU Bad Hall 1954


Relocation to the newly built fitter's shop (10 x 20 m) in Bad Hall. Production of stoves/sinks and porches.


Purchase of the first extruder Ø 60 (Anger)
Production of handrails/armchair strips and insert rails

AGRU Bad Hall plant 1 (1962)


Construction of office and residential buildings/garages and first hall construction (approx. 10 x 30 m). First production of pipes


First injection dies for butt welding fittings made from PP and PE are ordered by Anger and Mooshammer. Contract injection molding at Mooshammer and Stadlmann. Construction of an anodizing plant and plastics hall (approx. 60 x 24 m).


First production hall as warehouse for plastics and anodic coatings. Relocation of plastics and anodic coatings to a new production hall.

AGRU Bad Hall - Hall construction 1969


Hall construction for plastics (22 x 70 m), Hall 2

Production of pipes plant 2


Development of the anodizing hall according to state-of-the-art knowledge.
Relocation to new plastics hall with 5 extruders and 4 complete pipe production lines and a sheet plant, 2 sheet presses

Aerial View AGRU Bad Hall plant 1


Procurement of the new and spacious office building. The business development has continued to expand and we now export to 20 countries in the world. This made it necessary to rationalize the accounting. A modern computer system was commissioned on 1974.


Adoption of PVDF pipe and semi-finished product systems in the production spectrum.


New construction of the surface division. Erection of the anodizing plant and adoption of powder coating in Waldneukirchen.
Hall area approx. 6000 m²


Erection of a production hall in the Waldneukirchen plant for the first PE liner system, 5 m width (calendar).


Concrete protective liner was presented and introduced


First clean room for PVDF pipe and fitting production

AGRU abroad


Erection of the first site outside of Austria in Boston (USA)


Construction of plant number 2. Size about 24,000 m² hall area. Division of production into 2 locations. Plant 1 Grünburger Straße fitting production and mold design. Plant 2 Ing.-Pesendorfer-Straße extrusion, production of pipes, sheets, liners.
Erection of a new clean room for the production of PVDF pipes etc.
Development of the former warehouse in plant 1 for the production of fittings (Hall 5).


In cooperation with FRANK GmbH, the company AGRU-FRANK GmbH was founded in Wölfersheim, Germany. Erection of pipe production, jointly with the company Frank in Wölfersheim/Germany


Relocation of the production site from Boston to Georgetown, South Carolina with corresponding new construction and extension of the production work


Erection of plant 3. Automatic high-bay warehouse for fitting pallets (23,000 pallet spaces) and new construction of an office building, welding technology and R&D


Adoption of electrofusion fittings production

Mag. Alois Gruber


Mag. Alois Gruber takes over AGRU from his father and runs the business since then.

The new millenium...


Erection of a production hall for E/F fittings and construction of a high-bay warehouse for molds


Extension of plant 2. Construction for pipe extrusion and extension of the high-bay warehouse for pipes and sheets


Erection of a sales and commercial enterprise in Taicang/China


Erection of a second production plant in the USA, site Fernley, Nevada.


High-bay warehouse plant 3
Construction start plant 4


Completion of plant 4 and high-bay warehouse


Geotextile production in Andrews, South Carolina


GCL (Geosynthetic Clay Liners) in Georgetown, South Carolina


Opening of the new cleanroom plant for manufacturing PURAD high purity piping systems in Bad Hall, Austria. The state-of-the-art production takes place under super clean conditions and is ISO class 5 compliant.

Since then we at AGRU have been concentrating on expanding and optimising plastic production.

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