KGS Keller Geräte & Service GmbH is the partner for all enterprises of the Keller Group worldwide. We provide development, design, engineering, production and repair of special machinery. This equipment is used for ground improvement solutions for customers’ specialised geotechnical requirements.
KGS is the owner of big machinery (vibrocats, drilling rigs, cranes, hydraulic units, generators, mixing units, containers, etc.) as well as Keller specialties (vibrators, control units, Soilcrete®-monitors, drilling heads, etc.) – partially patent-registered – and rents them worldwide.
Furthermore, KGS delivers all necessary spare parts for this machinery and undertakes repair, maintenance and service of Keller equipment worldwide.
Other services include consultation and training incorporating new developments in safety, design and innovation thus continuing our goal of technical excellence.
KGS's health and safety policy is certified in accordance with DIN ISO 45001:2018.
Our team members are highly qualified specialists in their fields of development, design, production, service, hydraulics, support, training, instrumentation of machinery and controls.
KGS Keller Geräte & Service GmbH has been accredited to educate industrial mechanics, mechatronics technicians for construction machinery, electronic technicians, draftsmen and industrial clerks.
Development
In our Design Department, we take on board the feedback and specifications coming from our construction sector colleagues in our design and development activities. This means that the process know-how is directly incorporated into our new products for geotechnical engineering.
Our Design department is equipped with the latest design software tools. Our team is multi-disciplined to meet the challenging demands for machine construction incorporating hydraulics, electronics and instrumentation.
Manufacturing
KGS is an independent Business Unit within the KELLER Group. Formerly known as the equipment department of Keller Grundbau GmbH in Renchen, KGS established end of 2007 as limited liability company named KGS Keller Geräte & Service GmbH.
In Renchen you will find our operational headquarters as well as our shop floor.
Our team
In the beginning of 2024 we have a team of approximately 130 employees.
The majority of employees are based at our facility in Renchen, with some working in our headquarters Frankfurt-Offenbach.
Our history
Come with us on a journey through time: 160 years of experience and innovation.
2023
Development of type KB0-E electric drilling rig
2022
Development of a new power pack for type KB1 drilling rig; sustainability projects
2021
Development of fully-automated AKM2 mixer
2020
Our 160th anniversary; development of new type KB08 drilling rig
2019
Training concept modernisation for apprentices and employees
2018
Launch of new Keller type VC05-2 Vibrocat; corporate video production "We are KGS"
2017
Innovation of Keller type KB6-2 drilling rig; innauguration of a new additional shop floor; room capacity expansion and staff increases in the electrical engineering and customer service departments; introduction of Skype for Business
2016
Introduction of new Keller type KB0 drilling rig Future trend software M5 towards Keller Information Manager (KIM)
2015
Introduction of Fixed Mast System (FMS) for vibrocats
2014
Introduction of new Keller type KB7 drilling rig
2013
Introduction of new Keller vibrocat type VC07
2012
Quality Production Manager, digital networking, analysis and visualisation between construction machinery and online clients (iPad)
2012
Introduction of new Keller type KB1-2 drilling rig
2011
Warehouse digitisation; merchandise management automation by scanning
2010
Introduction of new Keller type KB6 drilling rig
2009
SAP introduction; introduction of the new M5 service tool system for records and visualisation on construction equipment
2008
Foundation of KGS Keller Geräte & Service GmbH as own company (formerly part of Keller Grundbau GmbH); Vibrex-piling TSM – Tubular wet Soil Mixing – new procedure Triple-shaft wet Deep Soil Mixing, production of sealing walls with the triple mixing tool Shuttle built and delivered for the Dry DSM procedure
2007
Large piling contract in KSA (65 Mio€) Large S700 Vibro Compaction job on Palm Deira, UAE
2006
Successful execution of first sites by geothermal piles. Diaphragm walls executed in Poland
2005
Soilcrete®-sealing wall below the Railway Station of Amsterdam First application of S700 vibrator for vibro compaction
2004
Double-shaft wet deep mixing Execution of sealing wall by Deep Soil Mixing for securing the construction pit in Warnemünde
2002
Carried out first large application of Compaction Grouting for reinstatement and ground improvement
2001
First use of the lime cement column (Dry mixing) technique in Malaysia and the United Kingdom Soilcrete®-Slabs up to 32 m deep successfully carried out First use of Deep Soil Mixing for highway bridges in Poland
2001
Successful construction of a water tight excavation slab by means of the Soilcrete®-DS-technique using columns up to 3.5 m diameter
1999
Introduction of improved Jet-grouting processes (Soilcrete®-TS and Soilcrete®-DS) 2000
1998
Compaction grouting introduced on construction sites in Germany
1997
Development of new vibrocat Several contracts for sealing of large construction pits using Soilcrete® (>40 Tm²)
1996
1.1 mio m vibro replacement and 5.5 mio m³ sand compaction
1995
Introduction on L-Vibrator
1995
Introduction of M4 service tool system to record tasks on construction equipment
1994
Large vibro contracts in Asia (Malaysia 900 000m) (until 1996)
1993
First application of injection container with control and 3D CAD-visualisation of the injection and deformation data by means of the Keller program Grout Control. Project: New St. Clair River Rail Tunnel, Canada
1989
First application of the injection data file for injection procedure Soilfrac
1988
Completion of drilling and grouting works on Mosul-Dam l (Iraq). 330 mio DM sales (Joint Venture)
1986
First contract of Soilfrac®-Injection in Germany (Compensation Grouting)
1980
Introduction of S-Vibrator
1979
First Soilcrete®-Contract in Germany (Jet Grouting)
1976
First Injected vibro columns und Concreted vibro columns
1975
Development of a new generation of deep vibrators and vibrocats
1972
Patent application for bottom-feed vibrator
1961
First contract using Vibro Replacement technique after development of the torpedo vibrator
1957
Vibro compaction trials for the planned Aswan Dam in Egypt
1939
World record in deep vibratory compaction: 35m, reached in Berlin
1936
First practical application of Keller's deep vibrator
1933
Patent registered for soil compaction depth vibrators
1932
Major groundwater lower near Frankfurt, Main river and at North Sea harbour facility
1909
First order for groundwater lowering
1860
Foundation of Company Johann Keller in Renchen