Prefabrication of clinker, concrete and rammed earth facade elements as well as partition and room-in-room systems since 1857
Keller Unternehmungen
Pfungen (headquarters, prefabrication plant) · Frick (Tonwerke Keller AG, real estate, MitLehm)New on Amplifa
About Keller Unternehmungen
The family-owned Keller Unternehmungen have been active in the construction industry since 1857 and have evolved from a brick manufacturer into a system provider and service company in the building sector. The core business is facades made of clinker, face brick and concrete: from consulting and execution planning according to SIA 112, through element planning, to production and installation. At the company's own prefabrication plant in Pfungen (since 1964), preton clinker elements, faced components such as lintels and window sills, concrete elements (e.g. C30/37, XC4/XF1, also coloured and sandblasted) and rammed earth elements are prefabricated with very high dimensional accuracy. Further business areas include construction services (facade renovation, cleaning, hydrophobisation, graffiti protection, maintenance inspections), partition wall and room-in-room systems made of aluminium, glass and wood for work environments, earthen building components (rammed earth ROBmade, clay brick elements) as well as real estate services. Deliveries are made to more than 50 countries via the DYFA partnership.
- Site
- Pfungen
- Processes
- Clinker facades (extruded clinker, water-struck clinker, re-use clinker, acoustic clinker), Prefabrication of preton facade elements (clinker elements), Prefabrication of faced components (lintels, window sills, parapets), Prefabrication of concrete elements / concrete facades, Prefabrication of rammed earth elements, Facade planning & execution (preliminary project, tendering, execution project, element planning,, Facade renovation, Facade cleaning / facade care (impregnation)
- Materials
- Clinker, Face bricks, Clay, Concrete, Rammed earth, Aluminium, Glass (safety glass), Wood
- Founded
- 1857
- Industries
- Construction, Architecture, Real estate, Office furnishing / work environments, Partition wall systems
- 01
Consulting & sampling
- 02
Project development / tendering (NPK)
- 03
Execution and element planning, structural design
- 04
Prefabrication at the Pfungen plant
- 05
Delivery & element installation
- 06
Maintenance, renovation, maintenance inspections
Materials & Processes
Clinker
Extruded, water-struck, re-use and acoustic clinker for facades and special bricks.
Face bricks
Facing masonry for interior and exterior facades, kelesto and kemano products.
Clay
Raw material for clinker and kelesto Signa surface designs, fired to the sintering limit.
Concrete
Concrete facades and faced components, e.g. C30/37 XC4/XF1, coloured and sandblasted.
Rammed earth / Clay
Sustainable building material for rammed earth ROBmade and prefabricated clay brick elements.
Aluminium
Profiles for partition wall systems, folding walls and powder-coated glass wall systems.
Glass (safety glass)
Single and double glazing for system walls and room-in-room systems.
Wood
System wall kelux H100; naturally regulates the indoor climate.
Chipboard and gypsum board panels (melamine-resin coated)
Solid-wall versions of system walls, e.g. Space Tech 98V.
Locations
Pfungen
CHHeadquarters and prefabrication plant (since 1964)
- Part weight / size
- Filter elements up to 4.50 × 3.80 m
- Lot size
- Project manufacturing / single-item manufacturing
- Materials
- Clinker, concrete, rammed earth
- Prefabrication plant for clinker, concrete and rammed earth elements
- Brick press
- Clinker exhibition Kiln Hall N°2
Frick
CHSite of Tonwerke Keller AG: real estate, MitLehm
- Materials
- Clay
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Clinker facades (extruded clinker, water-struck clinker, re-use clinker, acoustic clinker)Installation | – | – | – | – | Clinker, Face bricks |
| Prefabrication of preton facade elements (clinker elements)Casting | – | – | – | – | Concrete, Clinker |
| Prefabrication of faced components (lintels, window sills, parapets)Casting | – | – | – | – | Concrete, Clinker |
| Prefabrication of concrete elements / concrete facadesCasting | very high accuracy · sandblasting possible | Filter elements 4.50 m × 3.80 m | – | – | Concrete (e.g. C30/37, XC4/XF1, coloured) |
| Prefabrication of rammed earth elementsCasting | – | – | – | – | Rammed earth, Clay |
| Facade planning & execution (preliminary project, tendering, execution project, element planning,Engineering | – | – | – | – | Clinker, Concrete, Rammed earth |
| Facade renovationSurface | – | – | – | – | Clinker, Face brick |
| Facade cleaning / facade care (impregnation)Surface | – | – | – | – | Clinker, Face brick, Concrete |
| HydrophobisationSurface | – | – | – | – | Clinker, Face brick |
| Graffiti protectionSurface | – | – | – | – | Clinker, Face brick, Concrete |
| Facade maintenance inspections (visual inspection with lifting platforms, drones, special equipment)Testing | – | – | – | – | Clinker, Face brick |
| Clinker special bricksForming | – | – | – | – | Clinker, Clay |
| Partition walls with aluminium profile (system walls Space Tech 98, SypLine, kelux G40, kelux G200)Installation | – | – | – | – | Aluminium, Glass (safety glass), Chipboard, Gypsum board |
| kelux Office glass walls / DYFA New York Style glass wallsInstallation | – | – | – | – | Aluminium, Glass (toughened safety glass) |
| Partition walls made of wood (kelux H100)Installation | – | – | – | – | Wood |
| Folding wallsInstallation | – | – | – | – | Aluminium, Glass, Wood |
| Fire protection wallsInstallation | – | – | – | – | – |
| Room-in-room systems (Nurus boxes, Kelmö boxes, Focus rooms)Installation | – | Focus room 2.50 m × 2.50 m × 2.40 m | 350 kg (Kelmö single box) – 550 kg (Kelmö double box) | – | Glass, Aluminium, Wood, Acoustic walls |
| Rammed earth ROBmade (earthen building components)Casting | – | – | – | – | Rammed earth, Clay |
| Clay brick elements / clay bricks from Kubrix AGCasting | – | – | – | – | Clay |
| Real estate development, brokerage and managementEngineering | – | – | – | – | – |
| kelesto Signa individualised clinker facades (relief structures, colour application)Forming | – | – | – | – | Clinker, Clay |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Prefabrication plant (clinker, concrete and rammed earth elements) | Keller Unternehmungen | – | – | 1964 (Eröf | Pfungen |
| Brick press | Keller | – | – | – | Pfungen |
Additional services
Reference customers
History
- 1857
Founded by Johann Jakob Keller as a brick manufacturer
- 1964
Opening of the prefabrication plant in Pfungen
- 2015
Launch of the 'Ziegeleiplatz Dättnau' development project