Turned parts, milled parts and 2D laser parts to drawing including heat treatment, surface finishing and just-in-time delivery.
K+K Verbindungssysteme Vertriebs GmbH
WuppertalNew on Amplifa
About K+K Verbindungssysteme
K+K Verbindungssysteme Vertriebs GmbH was founded in 1994 and is based in Wuppertal. The company manufactures turned parts, milled parts and special parts from metal and plastic to drawing and sample in lot sizes from 50 pieces, as well as 2D laser parts from film to sheet metal, from prototype to large-scale series. The turned part range extends from simple geometries such as bushings, sleeves, discs and pins to complex CNC-turned parts: from bar stock, parts up to 65 mm in diameter are machined; larger parts up to 500 mm on CNC feeding machines. For laser parts, the company works with long-standing partners; mechanical post-processing with threads and chamfers is possible. In addition, heat treatments, over 50 surface treatments, custom packaging and just-in-time delivery are offered. According to the company, 3.5 million parts are produced per year. Customers include mechanical engineering, hydraulic and pump technology, conveyor technology, medical technology and municipal utilities (including the Wuppertal Suspension Railway); deliveries are made throughout Europe, within North Rhine-Westphalia with its own vehicle fleet.
- Site
- Wuppertal
- Processes
- Turned parts (turning, conventional and CNC, from bar stock), CNC turning on feeding machines, Milled parts (CNC milling centres), 2D laser parts (laser cutting, film to sheet metal, incl. prototypes), Mechanical post-processing of laser parts (threads, chamfers), Surface finishing (galvanizing, nickel plating, tin plating, chrome plating, phosphating, black, Heat treatment (hardening, tempering, normalizing, annealing), Quality inspection (first article inspection reports, spectral analyses, hardness tests, layer
- Materials
- Free-cutting steel, Case-hardening steel, Tool steel, Heat-treatable steel, Stainless steel, Aluminium, Brass, Bronze
- Certificates
- First article inspection reports, Spectral analysis, Hardness testing, Layer thickness testing, 100% optoelectronic dimensional inspection
- Founded
- 1994
- 01
Material selection (steel, stainless steel, non-ferrous metals, plastic)
- 02
CNC turning/milling or 2D laser cutting
- 03
Mechanical post-processing (threads, chamfers)
- 04
Heat treatment
- 05
Surface finishing
- 06
Quality inspection
- 07
Packaging & labelling
- 08
Just-in-time delivery
Materials & Processes
Free-cutting steel
Standard material for turned parts in small and large series.
Stainless steel (1.4301, 1.4571)
Corrosion-resistant turned parts and laser parts up to 15 mm material thickness.
Heat-treatable steel
For heat-treated, high-stress fasteners.
Aluminium (AlMg3)
Lightweight parts in turning and laser cutting up to 10 mm material thickness.
Brass
Non-ferrous metal for turned special parts, e.g. in fittings and electrical engineering.
Plastic
Turned and milled parts for applications with insulation or weight requirements.
S235
Structural steel for laser parts in mechanical and plant engineering.
Locations
Wuppertal
DEHeadquarters, manufacturing and sales
- Lot size
- from 50 pieces
- Materials
- Steel, stainless steel, aluminium, brass, bronze, plastic
- CNC turning and milling centres
- CNC feeding machines (up to 500 mm)
- Conventional lathes
- Cam-controlled automatic lathes
- Multi-spindle automatic lathes
- Sliding headstock automatic lathes
- 2D laser cutting system with sheet changer (3000 × 1500 mm)
Components
Inside the production
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Turned parts (turning, conventional and CNC, from bar stock)Machining | – | – | – | from 50 pieces – Small and large series | Free-cutting steel, Case-hardening steel, Tool steel, Heat-treatable steel, Stainless steel, Aluminium, Brass, Bronze, Plastic |
| CNC turning on feeding machinesMachining | – | – | – | – | Free-cutting steel, Case-hardening steel, Tool steel, Heat-treatable steel, Stainless steel, Aluminium, Brass, Bronze, Plastic |
| Milled parts (CNC milling centres)Machining | – | – | – | from 50 pieces | Free-cutting steel, Case-hardening steel, Tool steel, Heat-treatable steel, Stainless steel, Aluminium, Brass, Bronze, Plastic |
| 2D laser parts (laser cutting, film to sheet metal, incl. prototypes)Machining | – | Sheets up to 3000 x 1500 mm × 3000 mm | – | Single parts and prototypes possible – Large-scale series | S235, DD11, S355MC, DC01, DC04, 1.4301, 1.4571, AlMg3 |
| Mechanical post-processing of laser parts (threads, chamfers)Machining | – | – | – | – | S235, DD11, S355MC, DC01, DC04, 1.4301, 1.4571, AlMg3 |
| Surface finishing (galvanizing, nickel plating, tin plating, chrome plating, phosphating, blackSurface | – | – | – | – | – |
| Heat treatment (hardening, tempering, normalizing, annealing)Heat treatment | – | – | – | – | – |
| Quality inspection (first article inspection reports, spectral analyses, hardness tests, layerTesting | – | – | – | – | – |
| Packaging, labelling and warehousing (KLT-picked delivery)Assembly | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC turning-milling centres | – | – | Turned parts from bar stock up to 65 mm diameter | – | – |
| CNC feeding machines (turning) | – | – | Parts up to 500 mm | – | – |
| Conventional lathes | – | – | – | – | – |
| Cam-controlled automatic lathes | – | – | – | – | – |
| Multi-spindle automatic lathes | – | – | – | – | – |
| Sliding headstock automatic lathes | – | – | – | – | – |
| 2D laser cutting system with fully automatic sheet changer | – | – | Sheets up to 3000 x 1500 mm; steel up to 25 mm, stainless steel up to 15 mm, aluminium up to 10 mm | – | – |
Additional services
Reference customers
Quality
Quality assurance includes material certificates, first article inspection reports, spectral and hardness testing, coating logs with layer thickness testing, as well as 100 percent optoelectronic dimensional inspection in addition to continuous production monitoring.
| Evidence | Wuppertal |
|---|---|
| First article inspection reports | |
| Spectral analysis | |
| Hardness testing | |
| Layer thickness testing | |
| 100% optoelectronic dimensional inspection |
History
- 1994
Company founded; start of operations as a supplier of turned parts, laser parts, surface finishing and just-in-time delivery.