Manufacturer of technical adhesive tapes, cables, wires and wire harnesses for automotive and industry
Coroplast Fritz Müller GmbH & Co. KG
Wuppertal · Schönebeck · Großmehring · Braunschweig · Strzelce Opolskie (PL) · Kunshan (CN) · Mianyang (CN) · Rock Hill (USA) · Hammamet (TN) · Enfidha (TN) · Acámbaro (MX) · Celaya (MX)New on Amplifa
About the Coroplast Group
The Coroplast Group is an independent family business founded in 1928, headquartered in Wuppertal, and comprises three business units: Coroplast Tape (technical adhesive tapes), Coroflex (cables and wires) and WeWire (wire harnesses and injection-molded components). Manufacturing includes the extrusion of cables and wires based on PVC, polyethylene and polypropylene with copper conductors, the production of technical adhesive tapes including TapeTube systems for protecting and bundling wire strands, and the assembly of cable sets and wire harnesses. Customers are primarily automotive manufacturers and Tier-1 suppliers as well as wholesale, trade, industry, renewable energies and e-mobility. With around 6,800 employees, of which approximately 900 are at the Wuppertal headquarters, the company produces in Germany as well as in Poland, China, Tunisia, the USA and Mexico. Group revenue in 2025 was around €740 million.
- Site
- Wuppertal
- Processes
- Production of technical adhesive tapes (TapeTube as a protection and bundling system for wire, Production of cables and wires (incl. assembled meter goods, HV cables,, Manufacture of wire harnesses, Injection molding (injection-molded components), Cable extrusion (extrusion for cable insulation), Product development/engineering, Assembly of cables and wires, Cable sets
- Materials
- Copper, PVC (polyvinyl chloride), Polyethylene, Polypropylene, Polyvinyl chloride, Polypropylen, Cable extrusion
- Certificates
- ISO 14001, ISO 45001, ISO 50001, ISO 9001, IATF 16949, TISAX, ISO 9001 / IATF 16949 / ISO 14001 / TISAX
- Founded
- 1928
- Employees
- approx. 6,800
- Industries
- Automotive, E-mobility, Renewable energies, Wholesale, Trade, Industry
- 01
Product development/engineering
- 02
Cable extrusion (PVC, PE, PP)
- 03
Production of technical adhesive tapes
- 04
Injection molding of components
- 05
Cable assembly
- 06
Wire harness manufacturing (assembly)
- 07
Quality inspection
- 08
Delivery
Materials and Processes
Copper
Conductor material for cables, wires and wire harnesses.
Polyvinyl chloride
Important material for cable insulation and technical adhesive tapes since the 1930s.
Polyethylene
Insulation and sheathing material for cable and wire solutions.
Polypropylen
Material for wires and adhesive tapes.
Cable extrusion
Core process for insulating copper conductors, with its own extruder since 1955.
Sites
Wuppertal
DEHead office/HQ, development and production (Coroplast Tape, Coroflex)
- Materials
- PVC, copper, polyethylene, polypropylene
- Extruder
Schönebeck
DECoroplast Tape production
Großmehring
DEService center Ingolstadt
Braunschweig
DESite (TISAX certified)
Strzelce Opolskie / Dylaki
PLWeWire production (wire harnesses) and Coroflex
Kunshan
CNProduction of Coroplast Tape, Coroflex and WeWire
Mianyang
CNWeWire wire harness production
Rock Hill (South Carolina)
USProduction of Coroplast Tape and Coroflex
Hammamet / Enfidha
TNWeWire production
Acámbaro / Celaya
MXWeWire production and sales Coroplast Cable Trading
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of technical adhesive tapes (TapeTube as a protection and bundling system for wirePlastics | – | – | – | – | PVC |
| Production of cables and wires (incl. assembled meter goods, HV cables,Plastics | – | – | – | – | Copper, PVC, Polyethylene, Polypropylene |
| Manufacture of wire harnessesAssembly | – | – | – | – | Copper |
| Injection molding (injection-molded components)Plastics | – | – | – | – | – |
| Cable extrusion (extrusion for cable insulation)Plastics | – | – | – | – | PVC |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Extruder (cable insulation) | – | – | – | – | Wuppertal (historic, first extruder 1955) |
Additional services
Reference customers
Quality and Certification
The Coroplast Group pursues a zero-defect strategy with an integrated quality management system, its own in-house developed continuous improvement concept COROZEN (modeled on Kaizen) as well as regular internal and external audits at all sites. TISAX certifications demonstrate information security, particularly for the automotive industry.
| Evidence | Wuppertal | Schönebeck | Kunshan | Rock Hill | Strzelce Opolskie |
|---|---|---|---|---|---|
| ISO 9001 | |||||
| IATF 16949 | |||||
| ISO 14001 | |||||
| ISO 45001 | |||||
| ISO 50001 | |||||
| TISAX |
History
- 1928
Foundation of the company "Fritz Müller Elektroisoliermaterial" in Wuppertal by Fritz Müller on 3 February; start of own production of oil hoses.
- 1935–1943
Processing of PVC and first extruder; production of insulated wires. 1943 bomb damage at the Wuppertal plant.
- 1945
Restart with around 30 employees; death of the founder Fritz Müller on 5 June.
- 1948
The Coroplast brand name is created under managing director Dr. Richard Röhm; start of cable assembly.
- 1955
Commissioning of the first own extruder for cable insulation in Wuppertal.
- 2006
Natalie Mekelburger becomes Chairwoman of the Management Board (third generation).
- 2019
Conversion of the Wittener Straße site (Wuppertal) to green electricity.
- 2020
First greenhouse gas balance (CCF) for the German sites; launch of the Sustainability Initiative.
- 2022
Extension of the greenhouse gas balance to all international sites.
- 2023
The Chinese sites in Kunshan switch to green electricity.
- 2025
Group revenue of around €740 million; start of the systematic recording of Scope 3 emissions.