Precision machining: CNC turning, CNC milling, EDM and grinding of single parts through large series.
Kulina Zerspanungstechnik und Maschinenbau GmbH
BüchenNew on Amplifa
About us
Kulina Zerspanungstechnik und Maschinenbau GmbH is a family-run company in Büchen (Schleswig-Holstein) with over 55 years of experience in machining. The company manufactures simple and complex components and assemblies from 3D models, 2D data, drawings or sample parts – from prototypes and single parts to small and large series. The core processes are CNC turning (Ø 2 to 600 mm, conventional up to Ø 1000 mm), CNC milling on 4- and 5-axis machining centres including 5-axis simultaneous machining, wire EDM, as well as surface and cylindrical grinding. In terms of materials, all machinable materials are processed: structural steels, stainless steels, aluminium, non-ferrous metals, titanium and plastics. The raw material warehouse of around 200 tonnes with an automated bar stock warehouse enables short delivery times. Customers include companies from food production, aviation, shipping, energy generation, medical technology, pump technology and plant engineering. Around 60 employees, including five apprentices, work at the Büchen site on a production area of approx. 5000 m².
- Site
- Büchen
- Processes
- CNC milling (4-5-axis machining centres, incl. 5-axis simultaneous machining), CNC turning (incl. turn-mill parts, C-axis, Y-axis, sub-spindle), Conventional turning, Wire EDM, Surface grinding, CNC cylindrical grinding, Sawing/cutting (saw shop), Component construction / assembly manufacturing
- Materials
- Structural steels, Stainless steels, Aluminium, Non-ferrous metals, Plastics, Titanium, Special materials, Stainless steel
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1969
- Employees
- 60
- Industries
- Food production, Aviation, Shipping, Energy generation, Medical technology, Heating and energy technology
- 01
3D CAD/CAM planning and programming
- 02
Material warehouse and cutting (saw shop)
- 03
CNC turning
- 04
CNC milling
- 05
Wire EDM
- 06
Grinding (surface and cylindrical grinding)
- 07
Quality assurance and inspection
- 08
Component construction/assembly
- 09
Delivery
Materials and processes
Structural steels
Standard material for components of general mechanical and plant engineering, from our own material warehouse.
Stainless steel
Corrosion-resistant grades, among others for food production and medical technology.
Aluminium
Lightweight metal for components in, among others, aviation and electrical engineering.
Non-ferrous metals
Non-ferrous metals such as brass and copper alloys for machinable special components.
Titanium
Light, strong high-performance metal for demanding applications, among others in aviation and medical technology.
Plastics
Engineering plastics as a material for machined components.
Special materials
Special alloys from verified stocks for customer-specific applications.
Locations
Büchen
DEMain site: administration and production
- Lot size
- Single part to large series
- Materials
- Structural steels, stainless steel, aluminium, non-ferrous metals, titanium, plastics, special materials
- DMG MORI CTX beta 2000 (turning Ø 600 mm, length 2000 mm)
- DMG MORI CTX 400 and CTX 600
- 4× DMG MORI CTX alpha 500 (sub-spindle, Y-axis)
- 2× DMG MORI TWIN 42 (twin-spindle turning centre)
- DMT KERN CD 480 and CD 322 (cycle-controlled lathes)
- Conventional lathes up to Ø 1100 mm
- matec 30 HV (X 4000 mm)
- 4× Hedelius machining centres (among others C 80, Forte 6 Magnum)
- Makino DUO 64 (wire EDM)
- Ziersch surface grinding machine (800 × 500 mm)
- Studer S33 CNC cylindrical grinding machine
- Carl Zeiss ScanMax and Contura (coordinate measuring technology)
- INTERTEX bar stock warehouse TowerMat TM – FE 2.1 (105 cassettes, max. 228 t)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC milling (4-5-axis machining centres, incl. 5-axis simultaneous machining)Machining | – | 4000 mm (X) × 1000 mm (Y) × 1000 mm (Z) | – | Single part – Small series | Structural steels, Stainless steels, Aluminium, Non-ferrous metals, Plastics, Titanium, Special materials |
| CNC turning (incl. turn-mill parts, C-axis, Y-axis, sub-spindle)Machining | – | 2000 mm × Ø 600 mm | – | Single part – Large series | Structural steels, Stainless steels, Aluminium, Non-ferrous metals, Plastics, Titanium, Special materials |
| Conventional turningMachining | – | up to 2000 mm (distance between centres) × up to Ø 1000 mm (swing diameter) | – | Single part – Small series | Structural steels, Stainless steels, Aluminium, Non-ferrous metals, Plastics |
| Wire EDMMachining | – | 650 mm (X) × 400 mm (Y) × 420 mm (Z) | – | – | electrically conductive materials (steel, stainless steel, |
| Surface grindingMachining | below 5 µm (dimensional, form and position tolerances) · Ra 0.05 / Rz 0.3 | 800 mm × 500 mm | – | – | all machinable materials |
| CNC cylindrical grindingMachining | Ra 0.05 / Rz 0.3 | 1000 mm (distance between centres) × Ø 350 mm (centre height 175 mm) | – | – | all machinable materials |
| Sawing/cutting (saw shop)Machining | – | – | – | – | Structural steels, Stainless steels, Aluminium, Non-ferrous metals, Plastics |
| Component construction / assembly manufacturingAssembly | – | – | – | – | Steel, Stainless steel, Non-ferrous metals, Plastics |
| Quality assurance / measurement (inspection reports, final and intermediate inspection)Inspection | – | 1600 mm (Y measuring range Zeiss × 1000 mm (X) × 600 mm (Z) | – | – | – |
| CAD/CAM programming (3D CAD/CAM, formats step, iges, dxf, dwg)Engineering | – | – | – | – | – |
| Conventional millingMachining | – | – | – | Small series | Structural steels, Stainless steels, Aluminium, Non-ferrous metals, Plastics |
21 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC lathe | DMG MORI CTX beta 2000 | 1 | Max. turning diameter 600 mm, max. workpiece length 2000 mm, bar capacity 104 mm | – | Büchen |
| CNC lathe | DMG MORI CTX 400 | 1 | Max. turning diameter 304 mm, max. workpiece length 547 mm, bar capacity 65 mm | – | Büchen |
| CNC lathe | DMG MORI CTX 600 | 1 | Max. turning diameter 425 mm, max. workpiece length 1000 mm, bar capacity 80 mm | – | Büchen |
| CNC lathe | EMCO EMCOTURN E25 TCM | 1 | Swing Ø over bed 250 mm, distance between centres 405 mm | – | Büchen |
| CNC lathe | DMG MORI CTX alpha 500 | 4 | Max. turning diameter 240 mm, max. workpiece length 470/500 mm, sub-spindle, Y-axis | – | Büchen |
| Twin-spindle turning centre | DMG MORI TWIN 42 | 2 | Max. turning diameter 100 mm, max. workpiece length 200 mm, bar capacity 45 mm | – | Büchen |
| Cycle-controlled lathe | DMT KERN CD 480 | 1 | Swing Ø over bed 475 mm, turning length 1830 mm, bar capacity 82 mm | – | Büchen |
| Cycle-controlled lathe | DMT KERN CD 322 | 1 | Swing Ø over bed 320 mm, turning length 810 mm, bar capacity 52 mm | – | Büchen |
| Conventional lathes | – | – | Swing diameter up to 1100 mm, distance between centres up to 2000 mm, bar capacity up to 102 mm | – | Büchen |
| Copy turning lathes | – | 4 | Centre height 125 mm, distance between centres 165 mm, bar capacity 16 mm | – | Büchen |
| Machining centre | matec 30 HV | 1 | X 4000 mm, Y 1000 mm, horizontal 1100 mm, vertical 1000 mm | – | Büchen |
| Machining centre | Hedelius RS 80K Magnum | 1 | X 800 mm, Y 800 mm, Z 600 mm | – | Büchen |
| Machining centre | Hedelius RS 505 Magnum | 1 | X 450 mm, Y 510 mm, Z 480 mm | – | Büchen |
| Machining centre | Hedelius C 80 | 1 | X 2300 mm, Y 800 mm, Z 600 mm | – | Büchen |
| Machining centre | Hedelius Forte 6 Magnum | 1 | X 2300 mm, Y 600 mm, Z 800 mm | – | Büchen |
| Wire EDM machine | Makino DUO 64 | 1 | Travel X 650 mm, Y 400 mm, Z 420 mm | – | Büchen |
| Surface grinding machine | Ziersch | 1 | Grinding area 800 mm x 500 mm | – | Büchen |
| CNC cylindrical grinding machine | Studer S33 – 1000 / 175 | 1 | Distance between centres 1000 mm, centre height 175 mm | – | Büchen |
| Coordinate measuring machine | Carl Zeiss ScanMax | 1 | X 850 mm, Y 400 mm, Z 470 mm | – | Büchen |
| Coordinate measuring machine | Carl Zeiss Contura (VAST XT gold scanning probe) | 1 | X 1000 mm, Y 1600 mm, Z 600 mm | – | Büchen |
| Bar stock warehouse (cassette storage system) | INTERTEX TowerMat TM – FE 2.1 | 1 | Total height approx. 15 m, max. total load 228 t, 105 cassettes | – | Büchen |
Additional services
Quality
Quality assurance is carried out with precision metrology, including two coordinate measuring machines from Carl Zeiss (ScanMax and Contura with VAST XT gold scanning probe). Final and intermediate inspections after all operations are documented; on request with an inspection report.
| Evidence | Büchen |
|---|---|
| ISO 9001 |
History
- 1969
On 01.08.1969, Gerhard Kulina opened a turning shop in Büchen as a contract manufacturer with one machine.
- 1978
Son Olaf Kulina completed an apprenticeship as a toolmaker at Wilhelm Fette; later followed by a degree in production engineering.
- 1988
Olaf Kulina took over the business from his father.
- 1989
Expansion with qualified skilled workers after the opening of the border.
- 1991
Construction of the first factory building with 320 m².
- 1992
Purchase of the first CNC lathe.
- 1994
Purchase of the first CNC machining centre.
- 1996
Purchase of a second factory building including land (2500 m²) from GEA Tuchenhagen.
- 1998
15 employees, major expansion of the machine fleet and inauguration of a new production hall.
- 1999
21 employees.
- 2009
45 employees – the workforce has more than doubled within ten years.
- 2012
52 employees and five apprentices; death of the senior boss Gerhard Kulina in March 2011.
- 2013
Initial certification of the QM system according to DIN EN ISO 9001:2008.
- 2015
Groundbreaking ceremony in July; move in December to the site at Am Hesterkamp 9 with approx. 5000 m² of production area.
- 2019
50th anniversary with anniversary celebration.