Manufacturing of precision turned and milled parts from all machinable materials on CNC machines – from single parts to large series
Cerning & Stoepel GmbH
Bochum (Bochum-Wattenscheid)New on Amplifa
About Cerning & Stoepel
Cerning & Stoepel GmbH is a CNC machining company located in Bochum-Wattenscheid, manufacturing precision turned and milled parts from all commercially available machinable materials, especially aluminium, steel, stainless steel, brass and plastics, exclusively on CNC-controlled machines. The range of services includes individual and prototype parts, small and large series as well as assemblies – from bar stock Ø6 to Ø80 mm with a length of 250 mm, as chuck parts up to Ø350 mm and 700 mm length on 4-axis turn-mill centres, as well as milled parts up to 550×450×250 mm on 5-axis and up to 1000×800×850 mm on 4-axis machining centres. As a full-service provider, the company additionally offers development and design engineering, welding in aluminium and steel, laser marking and surface finishing. In addition to contract manufacturing, the company is a manufacturer of coolant filters (CS-Powerfilter) for CNC machines as well as motorcycle accessories (Rairotec). Customers come from high-voltage technology, plant and mechanical engineering, pump and valve engineering, equipment manufacturing, automation technology, medical and laboratory technology as well as test and fixture engineering. Production is carried out according to drawings, samples, DIN standards or individual agreement.
- Site
- Bochum
- Processes
- CNC turning of precision parts from bar stock Ø6 to Ø80 mm, 250 mm length, CNC turn-milling of chuck parts up to Ø350 mm and 700 mm length on 4-axis turn-mill centres, 5-axis CNC milling up to 550×450×250 mm, 4-axis CNC milling up to 1000×800×850 mm, Welding (aluminium and steel), Laser marking, Surface finishing (sourced externally as full service), Development and design engineering
- Materials
- Aluminium, Plastics, Brass, Steel, Stainless steel, CNC turning, CNC milling, Welding
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1990
- Employees
- 30
- Industries
- High-voltage technology, Plant engineering, Mechanical engineering, Pump engineering, Equipment manufacturing, Automation technology
- 01
Development and design engineering
- 02
CNC band saws
- 03
CNC turning
- 04
CNC milling
- 05
Welding (aluminium/steel)
- 06
Laser marking
- 07
Surface finishing
- 08
Assembly of modules
- 09
Quality control
Materials and Processes
Aluminium
Machining of turned and milled parts in aluminium and steel, including welded joints
Steel
Machining and welding of steel components for mechanical and plant engineering
Stainless steel
Precision parts in stainless steel for equipment, valve and laboratory technology
Brass
Machining of brass parts from bar stock up to Ø80 mm
Plastics
CNC machining of plastics for individual parts and series
CNC turning
Precision parts from bar stock Ø6–Ø80 mm with 250 mm length as well as chuck parts up to Ø350 mm and 700 mm length
CNC milling
3-, 4- and 5-axis milling up to 1000×800×850 mm, on 4 axes with rotary table up to 800 kg piece weight
Welding
Certified welders for joints in aluminium and steel
Bochum Site
Bochum
DEManufacturing site
- Part weight / size
- up to 800 kg (Toyoda FH 630 S, 4-axis)
- Lot size
- Individual parts, small and large series
- Materials
- Aluminium, steel, stainless steel, brass, plastics
- 3× 5-axis machining centres Spinner U-630 / U-1520 (with loading robot)
- 4-axis turn-mill centres Mori Seiki NL 1500Y / NL 2500Y / NL 2000Y
- DMG MORI CTX Beta 1250 TC (sub-spindle, B-axis, bar loading magazine)
- Mori Seiki Dura Turn 2050 MC / DuraTurn 2550, EMCO 242 T
- Toyoda FH 630 S (CNC rotary table, 630×630 mm pallet)
- Mazak VTC 41, Haas Super Mini Mill, Haas Super Speed VMC 40
- Berg & Schmid 320 CNC and 400 CNC band saws
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC turning of precision parts from bar stock Ø6 to Ø80 mm, 250 mm lengthMachining | – | 250 mm × Ø80 mm | – | Individual parts – Large series | Aluminium, Plastics, Brass, Steel, Stainless steel |
| CNC turn-milling of chuck parts up to Ø350 mm and 700 mm length on 4-axis turn-mill centresMachining | – | 700 mm × Ø350 mm | – | Individual parts – Large series | Aluminium, Plastics, Brass, Steel, Stainless steel |
| 5-axis CNC milling up to 550×450×250 mmMachining | – | 550 mm × 450 mm × 250 mm | – | Individual parts – Large series | Aluminium, Plastics, Brass, Steel, Stainless steel |
| 4-axis CNC milling up to 1000×800×850 mmMachining | – | 1000 mm × 800 mm × 850 mm | – | Individual parts – Large series | Aluminium, Plastics, Brass, Steel, Stainless steel |
| Welding (aluminium and steel)Joining | – | – | – | – | Aluminium, Steel |
| Laser markingSurface | – | – | – | – | – |
| Surface finishing (sourced externally as full service)Surface | – | – | – | – | – |
| Development and design engineeringEngineering | – | – | – | – | – |
| Assembly of modulesAssembly | – | – | – | – | – |
| CNC band sawing (round up to Ø450 mm, square 340×400 mm)Machining | – | 340 mm × 400 mm | – | – | – |
16 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis machining centre | Spinner U-630 | 1 | X 630 mm / Y 530 mm / Z 465 mm | – | Bochum |
| 5-axis machining centre with loading robot | Spinner U-1520 | 1 | X 1520 mm / Y 520 mm / Z 460 mm | – | Bochum |
| 5-axis machining centre | Spinner U-630 | 1 | X 630 mm / Y 530 mm / Z 465 mm | – | Bochum |
| 4-axis CNC turn-mill centre | Mori Seiki NL 1500Y | 1 | Turning diameter 260 mm, turning length 515 mm, chuck size 210 mm, spindle bore 52 mm, Y-axis travel | – | Bochum |
| 4-axis CNC turn-mill centre | Mori Seiki NL 2500Y | 1 | Turning diameter 275 mm, turning length 705 mm, chuck size 250 mm, spindle bore 80 mm, Y-axis travel | – | Bochum |
| 4-axis CNC turn-mill centre with sub-spindle | Mori Seiki NL 2000Y | 1 | Turning diameter 275 mm, turning length 705 mm, chuck size 250 mm, spindle bore 80 mm, Y-axis travel | – | Bochum |
| Turn-mill centre with sub-spindle, turn-mill spindle, B-axis, bar loading magazine | DMG MORI CTX Beta 1250 TC | 1 | Turning diameter 500 mm, turning length 1200 mm | – | Bochum |
| 3-axis CNC lathe with driven tool | Mori Seiki Dura Turn 2050 MC | 1 | Turning diameter 220 mm, turning length 430 mm, chuck size 215 mm, spindle bore 65 mm | – | Bochum |
| 2-axis CNC lathe | Mori Seiki DuraTurn 2550 | 1 | Turning diameter 360 mm, turning length 500 mm, chuck size 210 mm, spindle bore 80 mm | – | Bochum |
| 2-axis CNC lathe | EMCO 242 T | 1 | Turning diameter 158 mm, turning length 255 mm, chuck size 160 mm, spindle bore 42 mm | – | Bochum |
| 4-axis machining centre with CNC rotary table | Toyoda FH 630 S | 1 | X 1000 mm / Y 800 mm / Z 850 mm, pallet size 630×630 mm, piece weight up to 800 kg | – | Bochum |
| 3-axis machining centre | Mazak VTC 41 | 1 | X 560 mm / Y 510 mm / Z 510 mm | – | Bochum |
| 3-axis high-speed machining centre | Haas Super Mini Mill | 1 | X 400 mm / Y 300 mm / Z 410 mm | – | Bochum |
| 3-axis high-speed machining centre | Haas Super Speed VMC 40 | 1 | X 1016 mm / Y 616 mm / Z 635 mm | – | Bochum |
| CNC band saw | Berg & Schmid 320 CNC | 1 | Sawing diameter 320 mm round, 340×400 mm square | – | Bochum |
| CNC band saw | Berg & Schmid 400 CNC | 1 | Sawing diameter 450 mm | – | Bochum |
Additional services
Quality
Continuous quality control from incoming material to delivery is an integral part of manufacturing. The company is certified according to DIN EN ISO 9001:2015.
| Evidence | Bochum |
|---|---|
| ISO 9001 |
History
- 1990
Foundation of the mechanical workshop Cerning und Stoepel oHG by Thomas Cerning and Frank Stoepel as a two-man operation with 200 sqm of production space
- 2008
Acquisition of a new manufacturing facility of 2,500 sqm with 10,000 sqm of outdoor space
- 2009
Relocation of production to the new site and conversion into Cerning und Stoepel GmbH