Special machinery construction, steel and welded constructions as well as CNC machining of single parts through small series.
JARA Maschinenbau GmbH
Rastdorf (Gewerbeweg 1, 26901) · Saterland (Krähenweg 5, 26683)New on Amplifa
About JARA Maschinenbau
JARA Maschinenbau GmbH is a family-owned mechanical engineering and steel construction company based in Rastdorf (Emsland), Lower Saxony. The company, with more than 40 employees, manufactures special machinery, machine and fixture construction, lifting equipment such as crane spreaders, aerial work platforms, platforms as well as steel and welded constructions up to component weights of around 20 tonnes. Its manufacturing capabilities include CNC machining, laser and flame cutting, tube laser cutting, sheet metal working, bending, rolling as well as manual and fully automated robotic welding (MIG, MAG, TIG). Since 2016, the sister company JARA CNC-Zerspanungstechnik GmbH & Co. KG in Saterland has complemented the portfolio with CNC milling and turning, from prototypes to small series. Customers come from, among others, shipbuilding, wind energy, crane construction, aviation and the automotive industry; the components are used worldwide. JARA holds certifications to DIN EN ISO 9001, DIN EN 1090 EXC3 and DIN EN ISO 3834-2.
- Site
- Rastdorf
- Processes
- CNC machining (milling, turning), Machine and special machinery construction, Steel and metal construction (welded constructions), Welding (MIG, MAG, TIG), Robotic welding (fully automatic), Laser beam cutting (CNC laser system 5 kW), Tube laser cutting, Flame cutting (CNC)
- Materials
- Steel, Sheet metal, CNC laser cutting (5 kW), CNC flame cutting, Tube laser (3 kW), Fully automated robotic welding, CNC machining (milling/turning)
- Certificates
- DIN EN ISO 9001:2015, DIN EN 1090-2 EXC3 (large qualification certificate), DIN EN ISO 3834-2, DVS certificate, ISO 9001, EN 1090-2 EXC3, ISO 3834-2
- Founded
- 1950
- Employees
- more than 40
- Industries
- Shipbuilding/shipyards, Wind energy, Crane construction, Aviation, Automotive industry, Industrial companies (contract manufacturing)
- 01
Design (3D, manufacturing drawings)
- 02
Sheet metal working (laser, flame cutting, tube laser, rolling, bending)
- 03
Welded construction (MIG/MAG/TIG, robotic welding system)
- 04
Machining (CNC milling, turning, drilling)
- 05
Inspection (3D coordinate measurement, surface roughness measurement, NDT)
- 06
Assembly
- 07
Logistics
Materials & Processes
Steel
Main material for steel construction, welded constructions, lifting equipment and mechanical engineering components.
CNC laser cutting (5 kW)
Cutting of sheets up to 4000 x 2000 mm.
CNC flame cutting
Cutting of steel sheets up to 8000 x 2500 mm.
Tube laser (3 kW)
Machining of tubes up to 200 mm cross-section, since 2024.
Fully automated robotic welding
Welded constructions up to 3 m length, 1.20 m width and 500 kg weight.
CNC machining (milling/turning)
Milling up to 13,000 mm length as well as turning at the Saterland site.
Locations
Rastdorf
DEMechanical engineering, steel construction, welded construction, sheet metal working, assembly, design, administration
- Part weight / size
- Components up to approx. 20 t movable in the hall
- Lot size
- Prototype to small series
- Materials
- Steel, sheet metal
- CNC laser system 5 kW (4000 x 2000 mm)
- Tube laser (cross-section 200 mm, 3 kW)
- CNC flame cutting system (8000 x 2500 mm)
- CNC drilling system (11000 x 500 mm)
- KOBOA KBA40 CNC coordinate drilling machine
- CNC press brake 250 t
- NC sheet rolling machine
- 100 t straightening press
- Fully automatic robotic welding system
- Welding equipment MIG, MAG, TIG
- CNC horizontal and vertical automatic saws
- CNC machining center 20 tools
Saterland
DEMachining technology (JARA CNC-Zerspanungstechnik GmbH & Co. KG)
- Lot size
- Single part to small series
- Materials
- Metal
- CNC bed-type milling machine with rotary table (13,000 x 1,600 x 3,000 mm)
- CNC fixed-bed milling machine (8,000 x 1,350 x 2,000 mm)
- CNC bed-type milling machine (4,500 x 1,500 x 2,000 mm)
- 3x CNC machining center (rotary table/swivel head)
- CNC lathe (Ø 350 mm, length 1,000 mm)
- CNC turn-mill center (Ø 400 mm, length 1,500 mm)
- KEYENCE mobile 3D coordinate measuring machine
- Surface roughness tester (stylus system)
Reference Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC machining (milling, turning)Machining | – | – | – | Single part – Small series | Metal |
| Machine and special machinery constructionEngineering | – | – | – | – | Steel |
| Steel and metal construction (welded constructions)Joining | – | – | – | – | Steel |
| Welding (MIG, MAG, TIG)Joining | – | – | – | – | Steel |
| Robotic welding (fully automatic)Joining | – | 3 m × 1.20 m | 500 kg | – | Steel |
| Laser beam cutting (CNC laser system 5 kW)Machining | – | 4000 mm × 2000 mm | – | – | Sheet metal/metal |
| Tube laser cuttingMachining | – | Cross-section 200 mm | – | – | Metal |
| Flame cutting (CNC)Machining | – | 8000 mm × 2500 mm | – | – | Steel |
| CNC drillingMachining | – | 11000 mm × 500 mm | – | – | Metal |
| Bending (CNC press brake)Forming | – | – | – | – | Sheet metal |
| Sheet rolling (NC)Forming | – | – | – | – | Sheet metal |
| PunchingForming | – | – | – | – | Sheet metal |
| Straightening (100 t straightening press)Forming | – | – | – | – | Steel |
| Design (3D design software, visualization, manufacturing drawings)Engineering | – | – | – | – | – |
| Assembly of constructions and plant componentsAssembly | – | – | – | – | – |
| Non-destructive testing of welded seamsTesting | – | – | – | – | – |
| 3D coordinate measurement (KEYENCE measuring system)Testing | – | – | – | – | – |
| Surface roughness measurementTesting | – | – | – | – | – |
| CNC plasma cuttingMachining | – | – | – | – | Metal |
29 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC bed-type milling machine with rotary table (automatic indexing diagonal head) | – | 1 | X 13,000 x Y 1,600 x Z 3,000 mm | – | Saterland |
| CNC fixed-bed milling machine (automatic indexing diagonal head) | – | 1 | X 8,000 x Y 1,350 x Z 2,000 mm | – | Saterland |
| CNC bed-type milling machine (automatic indexing diagonal head) | – | 1 | X 4,500 x Y 1,500 x Z 2,000 mm | – | Saterland |
| CNC machining center, rotary table and swivel head | – | 1 | X 2,600 x Y 750 x Z 695 mm | – | Saterland |
| CNC machining center with rotary axis | – | 1 | X 2,100 x Y 620 x Z 620 mm | – | Saterland |
| CNC machining center with rotary swivel table | – | 1 | X 1,520 x Y 520 x Z 460 mm | – | Saterland |
| CNC machining center with rotary swivel table | – | 1 | X 520 x Y 520 x Z 460 mm | – | Saterland |
| CNC lathe | – | 1 | max. turning diameter 350 mm, max. turning length 1,000 mm, spindle bore 70 mm | – | Saterland |
| CNC turn-mill center | – | 1 | max. turning diameter 400 mm, max. turning length 1,500 mm, spindle bore 52 mm | – | Saterland |
| Lathe (conventional) | – | 1 | max. turning diameter 350 mm, max. turning length 2,000 mm, spindle bore 52 mm | – | Saterland |
| Band saw | – | 2 | Sawing diameter 100 mm and 310 mm | – | Saterland |
| Drill bit sharpening machine | – | 1 | Grinding diameter 8 – 25 mm | – | Saterland |
| CNC drilling system | – | 1 | 11000 x 500 mm | – | Rastdorf |
| CNC horizontal automatic saw | – | 1 | 350 mm | – | Rastdorf |
| CNC vertical automatic saw | – | 1 | 450 mm | – | Rastdorf |
| CNC machining center | – | 1 | 20 tools | – | Rastdorf |
| Manual column drilling machine | – | 1 | – | – | Rastdorf |
| CNC laser system 5 kW | – | 1 | 4000 x 2000 mm | – | Rastdorf |
| CNC flame cutting system | – | 1 | 8000 x 2500 mm | – | Rastdorf |
| NC sheet rolling machine | – | 1 | – | – | Rastdorf |
| CNC press brake | – | 1 | 250 t | – | Rastdorf |
| Straightening press | – | 1 | 100 t | – | Rastdorf |
| Welding equipment MIG, MAG, TIG | – | – | – | – | Rastdorf |
| Fully automatic robotic welding system | – | 1 | Components up to 3 m length, 1.20 m width, 500 kg weight | 2020 | Rastdorf |
| Tube laser | – | 1 | Cross-section 200 mm, 3 kW | 2024 | Rastdorf |
| CNC plasma system | – | 1 | – | 2003 | Rastdorf |
| KEYENCE measuring system (mobile 3D coordinate measuring machine) | KEYENCE | 1 | – | – | Saterland |
| Surface roughness tester (portable stylus system) | – | 1 | – | – | Saterland |
| CNC coordinate drilling machine | KOBOA KBA40 | – | – | – | Rastdorf |
Additional services
Reference customers
Quality & Certifications
Quality assurance includes a mobile 3D coordinate measuring machine (KEYENCE), portable surface roughness measurement and non-destructive testing of welded seams by our own qualified staff. Type examinations for aerial work platforms are carried out in cooperation with TÜV.
| Evidence | Rastdorf | Saterland |
|---|---|---|
| ISO 9001 | ||
| EN 1090-2 EXC3 | ||
| ISO 3834-2 | ||
| DVS certificate |
Company History
- 1950
Founded at today's Rastdorf location; sales and repair of agricultural machinery.
- 1970
Alois Jansen takes over the business.
- 1980
Expansion to include contract manufacturing for industrial companies.
- 1981
Construction of the first steel construction hall.
- 2001
Generational change: Martin Jansen takes over; founding of JARA Stahl- und Systembau GmbH.
- 2003
Investment in a CNC plasma system.
- 2006
Construction of a large steel construction hall with adjacent office building.
- 2016
Acquisition of a machining company in Saterland; founding of JARA CNC Zerspanungstechnik.
- 2020
Investment in a fully automatic robotic welding system.
- 2024
New company name JARA Maschinenbau GmbH; investment in a tube laser system.