
Development and manufacture of compact drilling rigs, drilling carriages and drilling tools for well construction, geothermal energy, geotechnics and ordnance surveying

Dipl.-Ing. Lutz Kurth Bohr- und Brunnenausrüstungen GmbH
NordhausenNew on Amplifa
About us
Dipl.-Ing. Lutz Kurth Bohr- und Brunnenausrüstungen GmbH develops and manufactures compact and powerful drilling rigs, drilling carriages, drilling tools and well equipment in Nordhausen in the southern Harz region. Founded in 1995, the company emerged from a commercial sales agency and has grown from a three-man operation into an internationally active mechanical engineering company with 25 employees. The product range includes small drilling rigs such as KB10, KB13, KB21 and KB25 as well as drilling systems such as the KB30 with casing rotation table, light and multipurpose drilling carriages, hydraulic and flushing pump units, and accessories such as grouting devices. The technology is used primarily in well construction, shallow geothermal energy, ground investigation, ordnance surveying, geotechnics and special foundation engineering. In addition to new machines, the company offers consulting, design, service, repair, conversion of third-party equipment, rental, and trading in spare parts. Short distances between order intake, design and production enable customized solutions that are in use on several continents.
- Site
- Nordhausen
- Processes
- Design and manufacture of customized drilling technology solutions (consulting, design,, Manufacturing of drilling rigs and drilling carriages (mechanical engineering), Repair, service, conversion and upgrades of drilling rigs (including third-party equipment), Dry drilling (drilling tools), Flush drilling (drilling tools), Down-the-hole hammer drilling (drilling tools), Core drill head (for KB13 geotechnics), Dynamic probing (for KB13)
- Materials
- Steel, Welding and steel construction processes, Hydraulic systems, Flush drilling processes, Down-the-hole hammer process
- Founded
- 1995
- Employees
- 25
- Industries
- Well construction, Geothermal energy (ground-source heat), Geotechnics, Ground investigation, Ordnance surveying, Special foundation engineering
- 01
Consulting and order intake
- 02
Design
- 03
Manufacturing
- 04
Assembly and testing
- 05
Delivery and commissioning
- 06
Service and repair
Materials & Processes
Steel
Structural steel forms the base material for the steel structures of drilling rigs and drilling carriages.
Welding and steel construction processes
Production of the load-bearing frames and superstructures of the drilling rigs at the Nordhausen plant.
Hydraulic systems
In-house hydraulic units and systems drive the rotary drill heads and feed of the machines.
Flush drilling processes
Drilling tools for flush drilling in unconsolidated rock, e.g. in well construction.
Down-the-hole hammer process
Drilling tools for down-the-hole hammer drilling in solid rock.
Locations

Nordhausen
DEHeadquarters, design, manufacturing, service
- Part weight / size
- Machines from approx. 1 t (KB10) to approx. 11 t (KB30)
- Lot size
- Individual machines and series production
- Materials
- Steel
- Small drilling rigs KB10/KB13/KB20/KB21/KB25
- Drilling system KB30
- Drilling carriages LBL1200/LBL2200/MBL23/12
- Hydraulic units
- Flushing pump units
Components & Products



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Design and manufacture of customized drilling technology solutions (consulting, design,Engineering | – | – | – | – | Steel (unspecified) |
| Manufacturing of drilling rigs and drilling carriages (mechanical engineering)Assembly | – | – | – | – | Steel (unspecified) |
| Repair, service, conversion and upgrades of drilling rigs (including third-party equipment)Assembly | – | – | – | – | – |
| Dry drilling (drilling tools)Engineering | – | – | – | – | – |
| Flush drilling (drilling tools)Engineering | – | – | – | – | – |
| Down-the-hole hammer drilling (drilling tools)Engineering | – | – | – | – | – |
| Core drill head (for KB13 geotechnics)Engineering | – | – | – | – | – |
| Dynamic probing (for KB13)Testing | – | – | – | – | – |
| Ground investigation (drilling rigs & equipment)Testing | – | – | – | – | – |
| Ordnance borehole surveying (drilling rigs, drilling carriages)Testing | – | – | – | – | – |
| Grouting device (geothermal energy)Assembly | – | – | – | – | – |
| Rental of machinery, trading in spare parts, drilling tools and well equipmentAssembly | – | – | – | – | – |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Small drilling rig | KURTH KB10 | – | – | – | Nordhausen |
| Small drilling rig | KURTH KB13 | – | – | – | Nordhausen |
| Small drilling rig | KURTH KB20 | – | – | – | Nordhausen |
| Small drilling rig | KURTH KB21 | – | – | – | Nordhausen |
| Small drilling rig | KURTH KB25 | – | – | – | Nordhausen |
| Drilling rig/drilling system | KURTH KB30 | – | – | – | Nordhausen |
| Drilling rig | KURTH UWB30 | – | – | – | Nordhausen |
| Multipurpose drilling carriage | KURTH MBL23/12 Kampfmittel | – | – | – | Nordhausen |
| Light drilling carriage | KURTH LBL1200 | – | – | – | Nordhausen |
| Light drilling carriage | KURTH LBL2200 | – | – | – | Nordhausen |
| Hydraulic units | KURTH | – | – | – | Nordhausen |
| Flushing pump units | KURTH | – | – | – | Nordhausen |
Additional services
Reference customers
History
- 1990
After reunification, Dipl.-Ing. Lutz Kurth founds a commercial sales agency for drilling and well equipment; establishment of an in-house workshop for series production of the KB10.
- 1993
Conversion into an engineering office; production of the first small drilling rig KB10 weighing one tonne
- 1995
Founding of Bohr- und Brunnenausrüstungen GmbH and development of the KB20
- 1997/1998
Introduction of the modular system for small drilling technology and relocation to the Kohnsteinbrücke site in Niedersachswerfen
- 2000
Development of the light drilling carriage LBL1200 and its associated modular system; 10th company anniversary with an in-house trade fair and over 200 guests
- 2004
Development of the KB30 drilling system and delivery to the German Armed Forces for deployment in Afghanistan
- 2008
Relocation to Hanewacker-Straße in Nordhausen; optimization of production processes; expansion to 25 employees; production of larger quantities; development of hydraulic and flushing pump units
- 2010
Business relations with Strojdormash (Russia); development of the UWB30 for the Russian market; development of the KB13; first participation in BAUMA; expansion of relations into the Baltic economic area
- 2016
Introduction of the KB25 machine type, first delivery to Australia; development of the KB13 for geotechnics with core drill head, hydraulic hammer and dynamic probe; first drilling rigs with casing rotation table
- 2020
Farewell to Lutz and Ursula Kurth; Dirk Krueger takes over management; expansion of the repair and service offering including conversion of third-party equipment; new customers in Scandinavia and Africa; first delivery of the KB21
- 2025
New KB30 generation (approx. 11 tonnes); 30th company anniversary; host of GEOWORLD 2025; Lothar Kaufhold takes over management from Dirk Krueger