
Development and manufacture of its own CNC/HSC engraving and milling machines, special-purpose machine engineering, PASO service and electrical engineering

RHOTEC GmbH
Bad Lauterberg im Harz, Scharzfelder Straße 106New on Amplifa
About RHOTEC GmbH
RHOTEC GmbH was founded in 1990 in Bad Lauterberg in the Harz region and today employs 28 people. The company develops and manufactures its own CNC and HSC engraving and milling machines, including the Hybrid 900 with 5-axis machining and a working area of 820 x 900 x 275 mm. In addition, RHOTEC plans and builds special-purpose machines such as HSC machines, chain conveyors and CNC embossing machines, including CAD planning, electronics and PLC programming as well as commissioning. A key focus is the service, repair and maintenance of PASO engraving/milling machines (Profitec, Profispeed, Porta, Micro, Universal) with spare parts service and retrofit upgrades. Materials machined include steel up to 70 HRC, aluminium, non-ferrous metals, graphite and plastics. The company also carries out electrical installations, photovoltaic projects, lighting and safety technology as well as industrial and control technology, throughout Europe and internationally.
- Site
- Bad Lauterberg im Harz
- Processes
- Repair, maintenance and servicing of PASO machines (Profitec, Profispeed, Porta, Micro,, Diagnosis and troubleshooting on site or remotely, Spare parts service (original or remanufactured), Control modernisation (retrofit), Mechanical and electrical repair, 5-axis milling (HSC), swivel axis, round engraving fixture, Construction of special-purpose machines (HSC machines, chain conveyors, CNC embossing machines), Development and production of electronic circuits/controls and single PCBs in SMD format
- Materials
- Steel up to 70 HRC, Aluminium and other soft metals, Non-ferrous metals, Graphite, Plastics (metal and plastics machining), 5-axis HSC milling, Electronics manufacturing, Aluminium and soft metals
- Certificates
- Own QA team since 2023
- Founded
- 1990
- Employees
- 28
- Industries
- Mechanical engineering, Machine tools/engraving technology, Electrical engineering, Building services engineering, Photovoltaics/energy, Manufacturers/jewellery
- 01
CAD planning and motion simulation
- 02
Mechanical manufacturing (metal and plastics machining)
- 03
Development and production of electronic circuits/controls (SMD)
- 04
PLC/PC/firmware programming
- 05
Assembly and commissioning
- 06
Service, maintenance and spare parts supply
Materials and Processes
5-axis HSC milling
Machining of steel up to 70 HRC, aluminium, non-ferrous metals and graphite with swivel axis and round engraving fixture.
Electronics manufacturing
Development and production of circuits, controls and single PCBs in SMD format.
Steel up to 70 HRC
Machining of hardened steels on the HSC milling machine Hybrid 900.
Aluminium and soft metals
Milling of aluminium and other soft metals.
Graphite
Machining of graphite, e.g. for electrode applications.
Plastics
Machining of plastics in addition to metalworking.
Locations

Bad Lauterberg
DEHeadquarters with manufacturing, CNC service and electrical engineering
- Lot size
- Single parts, small series, custom special solutions
- Materials
- Steel up to 70 HRC, aluminium, non-ferrous metals, graphite, plastics
- HSC milling machine Hybrid 900 (5-axis, swivel axis, 820 x 900 x 275 mm, spindle up to 20 kW/60,000 rpm)
- AC servo systems with Sercos 3
- Workshop for metal and plastics machining
- SMD electronics manufacturing
Components and Machines



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Repair, maintenance and servicing of PASO machines (Profitec, Profispeed, Porta, Micro,Engineering | – | – | – | – | – |
| Diagnosis and troubleshooting on site or remotelyEngineering | – | – | – | – | – |
| Spare parts service (original or remanufactured)Engineering | – | – | – | – | – |
| Control modernisation (retrofit)Engineering | – | – | – | – | – |
| Mechanical and electrical repairEngineering | – | – | – | – | – |
| 5-axis milling (HSC), swivel axis, round engraving fixtureMachining | – | – | – | – | Steel up to 70 HRC, Aluminium, Soft metals, Non-ferrous metals, Graphite |
| Construction of special-purpose machines (HSC machines, chain conveyors, CNC embossing machines)Engineering | – | – | – | – | – |
| Development and production of electronic circuits/controls and single PCBs in SMD formatEngineering | – | – | – | – | – |
| Electrical installation / electrical engineeringEngineering | – | – | – | – | – |
| Photovoltaic systems (planning, calculation, installation)Engineering | – | – | – | – | – |
| Lighting systems & safety lightingEngineering | – | – | – | – | – |
| Industrial and control technologyEngineering | – | – | – | – | – |
| Lightning protection systems (installation, in conjunction with photovoltaics)Engineering | – | – | – | – | – |
| Production of system components / data cablesEngineering | – | – | – | – | – |
15 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| HSC milling machine (5-axis, swivel axis) | RHOTEC Hybrid 900 | – | 820 x 900 x 275 mm | – | Bad Lauterberg |
| CNC engraving/milling machine | PASO Profitec | – | – | – | Customer service |
| CNC engraving/milling machine | PASO Profispeed | – | – | – | Customer service |
| CNC engraving/milling machine | PASO Porta | – | – | – | Customer service |
| CNC engraving/milling machine | PASO Micro | – | – | – | Customer service |
| CNC engraving/milling machine | PASO Universal | – | – | – | Customer service |
| Engraving/milling machine | Kuhlmann P20P 1000x1200mm | – | 1000 x 1200 mm | – | Used machines |
| Engraving/milling machine | Kuhlmann P20P 1000x2000mm | – | 1000 x 2000 mm | – | Used machines |
| Engraving/milling machine | Kuhlmann P20T | – | – | – | Used machines |
| Engraving/milling machine | Kuhlmann P25S | – | – | – | Used machines |
| Engraving/milling machine | Kuhlmann Polaris | – | – | – | Used machines |
| Engraving/milling machine | Kuhlmann Prokomat P20C | – | – | – | Used machines |
| Milling machine | Einzinger ME400 | – | – | – | Used machines |
| Milling machine | Wissner Alpha | – | – | – | Used machines |
| Gantry milling machine incl. tool grinding machine (production of cutting blades) | – | – | – | – | Johannesburg (project) |
Additional services
Reference customers
Quality
Since 2023, RHOTEC has maintained its own sales and quality assurance team. Inspection and commissioning of machines and systems takes place on site at the customer's premises.
| Evidence | Bad Lauterberg |
|---|---|
| Own QA team since 2023 |
History
- 1990
Founded in Bad Lauterberg (Hauptstraße 168) by Röger, Helbing and Omland (RHO); PC manufacturing, production of system components for Kuhlmann Werkzeugmaschinen, training centre, Novell network installations.
- 1995
Relocation to Barbis (Barbiser Straße); first work on Kuhlmann engraving/milling machines.
- 2000
Relocation to Bad Lauterberg, Bahnhofstr. 6; maintenance contracts across Europe, 8 employees, sales of PASO engraving/milling machines.
- 2020
Relocation to Scharzfelder Straße 106; first electrical engineering and photovoltaic projects; construction of the company's own HSC machine Hybrid 900; ISO/DIN controls Bosch/Rexroth; accessory development.
- 2023
Major projects across Germany; vehicle fleet expanded to 20 vehicles; sales and quality assurance team; 21 employees.
- 2024
Participation in Europe-wide tenders; vehicle fleet expanded to 25 vehicles; project management team; 28 employees.