As the holding company of the Knauf Group, Gebr. Knauf KG develops systems for dry construction, plaster, flooring and facades; under the Knauf PFT brand, machine technology for processing these
Gebr. Knauf KG
IphofenNew on Amplifa
About Knauf
Gebr. Knauf KG, headquartered in Iphofen in Lower Franconia, is the holding company of the German Knauf Group companies, which operate around 320 plants and 85 raw gypsum operations in more than 90 countries worldwide. The family-owned company is a manufacturer and distributor of systems for dry construction, flooring, plaster and facades under the Knauf brand. Production is based on gypsum and gypsum products such as rendering plaster, filler plaster, stucco plaster, gypsum plasterboard and gypsum fibreboard, as well as lime-cement plasters and anhydrite-based flowing screeds. Under the Knauf PFT brand, the group offers machine technology for processing these building materials: mixing pumps, continuous and batch mixers, delivery pumps and high-pressure pumps (airless), silo conveying systems and cutting tables for dry construction, complemented by accessories, tools and a dealer network. PFT machine technology is used in plastering and stucco trades, in dry construction and in flooring and facade systems, including for the machine application of clay plaster. The company's roots lie in gypsum mining and gypsum processing; the original plant in Perl still exists today as a dry mortar mixing plant for lime-cement plasters.
- Site
- Iphofen
- Processes
- Machine plaster application / plaster processing (clay plaster applied by machine), Mixing with continuous mixers, Special mixes with batch mixers, Pumping/delivery pumps, Airless conveying with high-pressure pumps, Mixing of mineral/powder filler compounds (powercoat remixer), Mixing of highly viscous materials (handheld mixer), Cutting of dry construction boards (cutting table BOARDMASTER)
- Materials
- Clay plaster, Gypsum, Lime-cement plaster, Rendering plaster (Rotband), Machine-applied plaster MP 75, Filler plaster, Stucco plaster, Gypsum fibreboard
- Founded
- 1932
- Industries
- Construction industry / building trades, Plastering and stucco trades, Dry construction, Flooring/Facade/Plaster systems, Clay plaster applications
- 01
Gypsum mining (raw material)
- 02
Gypsum processing (shaft kilns/rotary kiln)
- 03
Production of plasters, filler compounds and boards
- 04
Development and manufacture of processing machines (Knauf PFT)
- 05
Distribution via dealer network
- 06
Support and service
Materials and Products
Gypsum
The company's basic raw material for rendering plasters, filler plasters, stucco plaster and board products.
Machine-applied plaster MP 75
Machine-applied plaster, developed as a system matched to the Gipsomat plastering machine.
Rotband bonding plaster
Well-known bonding plaster whose success enabled the company's expansion in the 1960s.
Lime-cement plaster
Still produced as dry mortar at the original plant in Perl.
Clay plaster
Environmentally friendly plaster whose machine application by PFT machine technology is intended to be fast, precise and economical.
Anhydrite / flowing screed
Basis for flowing screeds, among others produced at the Neuss plant.
Gypsum plasterboard
Dry construction boards, produced from 1966 in Königshofen with a capacity of 15 million m² per year.
Gypsum fibreboard
Board type produced from the late 1950s onwards for dry construction.
Filler plaster
Produced since 1957, among other things as gypsum in a tube; mineral/powder filler compounds are processed with the powercoat remixer.
Locations
Iphofen
DEHeadquarters/Holding (Gebr. Knauf KG)
- Materials
- Gypsum, rendering plasters, gypsum plasterboard
- Rotary kiln gypsum plant
Perl (Saarland)
DEOriginal plant, dry mortar mixing plant
- Materials
- Lime-cement plaster, filler plaster
- Gypsum plant with three shaft kilns
Siersburg
DEGypsum plant
- Materials
- Rendering plaster (Rotband)
Stadtoldendorf
DEGypsum quarry and gypsum plant
- Materials
- Gypsum
Products and Machine Technology
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Machine plaster application / plaster processing (clay plaster applied by machine)Assembly | – | – | – | – | Clay plaster |
| Mixing with continuous mixersOther | – | – | – | – | – |
| Special mixes with batch mixersOther | – | – | – | – | – |
| Pumping/delivery pumpsOther | – | – | – | – | – |
| Airless conveying with high-pressure pumpsOther | – | – | – | – | – |
| Mixing of mineral/powder filler compounds (powercoat remixer)Other | – | – | – | – | mineral/powder filler compounds |
| Mixing of highly viscous materials (handheld mixer)Other | – | – | – | – | – |
| Cutting of dry construction boards (cutting table BOARDMASTER)Machining | – | – | – | – | Gypsum boards/dry construction boards |
17 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Mixing pump | Knauf PFT G 4 gen25 | – | – | – | – |
| Mixing pump | Knauf PFT RITMO | – | – | – | – |
| Mixing pump | Knauf PFT BOLERO | – | – | – | – |
| Continuous mixer | Knauf PFT HM | – | – | – | – |
| Continuous mixer | Knauf PFT LOTUS | – | – | – | – |
| Batch mixer | Knauf PFT MULTIMIX | – | – | – | – |
| Delivery pump | Knauf PFT SWING | – | – | – | – |
| Delivery pump | Knauf PFT ZP 3 | – | – | – | – |
| High-pressure pump (airless) | Knauf PFT SWING airless | – | – | – | – |
| Conveying system (silo conveying system) | Knauf PFT SILOMAT | – | – | – | – |
| Conveying system (silo conveying system) | Knauf PFT SILOJET | – | – | – | – |
| Cutting table (dry construction) | Knauf PFT BOARDMASTER | – | – | – | – |
| Handheld mixer | Knauf PFT PFT MIXER | – | – | – | – |
| Remixer | Knauf PFT powercoat | – | – | – | – |
| Rotor/stator (pump component) | Knauf PFT | – | – | – | – |
| Plastering machine (historical) | Putzmeister Gipsomat | – | – | 1960er | – |
| Gypsum plant with shaft kilns / rotary kiln | Gebr. Knauf | – | – | 1933/1950 | Perl (Saarland), Iphofen |
Additional services
History
- 1932
Alfons and Karl Knauf found a gypsum pit in Schengen on the Moselle (later Rheinische Gipsindustrie und Bergwerksunternehmen).
- 1933
Takeover of a lime works in Perl that had gone bankrupt and conversion into a gypsum plant with three shaft kilns.
- 1935
First expansion: acquisition of a gypsum plant in Siersburg.
- 1936
Takeover of a gypsum quarry in Hüttenheim near Iphofen.
- 1938
Takeover of a gypsum quarry in Stadtoldendorf; renaming to Gebr. Knauf Westdeutsche Gipswerke; annual production approx. 28,000 t of gypsum.
- 1947
Karl Knauf founds Fränkische Gipswerke GmbH in Iphofen.
- 1948
Return of the plants in the American and British zones.
- 1950
Acquisition of the plant of Frankfurter Gipswerke GmbH in Frankfurt's Osthafen; pre-war sales level reached again.
- 1953
Enlargement of the Iphofen plant.
- 1957
Start of filler plaster production at the Perl plant, including gypsum in a tube.
- 1960
New plant building in Siersburg increases production volume to 210,000 tonnes of rendering plaster; success of the Rotband product.
- 1962
New plant building in Castrop-Rauxel for wall boards made of industrial gypsum.
- 1966
New plant for gypsum plasterboard in Königshofen (capacity 15 million m²/year).
- 1960er
Development of the Gipsomat plastering machine and of the machine-applied plaster MP 75 (manufactured by Putzmeister, sole distribution by Knauf).
- 1969
Nikolaus and Baldwin Knauf join the company management as personally liable partners.
- 1972
Gebr. Knauf Saar-Gipswerke GmbH is merged into Gebr. Knauf Westdeutsche Gipswerke GmbH.