Manufacturer of industrial signs made of metal and plastic, front panels, front films, labels and assemblies
Ernst Wenzelmann Schilderfabrik GmbH
57648 UnnauNew on Amplifa
About Us
Ernst Wenzelmann Schilderfabrik GmbH is an owner-managed family business in Unnau (Westerwald) that has been manufacturing industrial signs made of metal and plastic, front panels and films, assemblies and labels for over 70 years. The product portfolio includes anodized and printed aluminum signs, etched metal signs made of stainless steel, brass and nickel silver, plastic signs, and device and machine labels with barcode or 2D code marking. Processes such as anodizing under vacuum with its own anodizing plant, anodized-layer inkjet digital printing, screen printing and laser marking with Nd-YAG and CO2 lasers are operated in-house. In addition to cutting, NC punching, laser cutting and embossing, converting and assembly of ready-to-install front panels are part of the value chain. Customers come from mechanical and plant engineering, the electrical industry, device, control and apparatus engineering as well as automotive, medical, metrology and process engineering. The company is certified to ISO 9001 and ISO 14001 and develops new processes and materials in cooperation with universities.
- Site
- Unnau
- Processes
- Anodized aluminum signs (anodizing under vacuum), Printed aluminum signs (screen printing, baking/2K inks, inkjet, laser marking), Etching of metal signs (etched metal signs), Front panels (anodized, printed, etched, laser-marked), Front films (printed, reverse printed, laser-marked, embossed, key embossing), Plastic signs (screen printing, thermal transfer printing, digital printing, laser), Labels (screen, inkjet and thermal transfer printing, lamination, UV protective coating, doming), Mechanical processing (cutting, punching, hole punching, attaching rivets, thread cutting,
- Materials
- Aluminum, Color aluminum, Aluminum foil, Stainless steel, Brass, Nickel silver, ABS laminated sheet, Polycarbonate
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 9001, ISO 14001, IATF 16949, ISO 13485
- Founded
- 1917
- Employees
- approx. 40
- Industries
- Mechanical and plant engineering, Automotive engineering, Electrical and electronics industry, Device engineering, Metrology, Control engineering
- 01
Consulting, design and final artwork
- 02
Film/screen production or print data preparation
- 03
Mechanical processing (cutting, punching, hole punching, laser cutting)
- 04
Surface processes (anodizing, screen/digital printing, etching, laser marking)
- 05
Surface protection (protective coating, nano coating, protective film, doming)
- 06
Converting and assembly of assemblies
Locations
Unnau
DEProduction and Administration
- Lot size
- Single order to series
- Materials
- Aluminum, color aluminum, stainless steel, brass, nickel silver, plastics
- Anodizing plant / electroplating automatic line
- Screen printing machine
- Digital printing machine (anodized-layer inkjet, 1400 x 1400 dpi)
- Nd-YAG marking laser
- CO2 marking laser
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Anodized aluminum signs (anodizing under vacuum)Surface | – | – | – | – | Aluminum (AlMg3) |
| Printed aluminum signs (screen printing, baking/2K inks, inkjet, laser marking)Surface | – | – | – | – | Aluminum (AlMg3), Color aluminum |
| Etching of metal signs (etched metal signs)Surface | – | – | – | – | Stainless steel (1.4301/1.4541/1.4571/1.4016), Brass, Nickel silver |
| Front panels (anodized, printed, etched, laser-marked)Surface | – | – | – | – | Aluminum, Stainless steel, Plastic, Brass |
| Front films (printed, reverse printed, laser-marked, embossed, key embossing)Plastic | – | – | – | – | Polycarbonate 0,125–0,475 mm, Polyester 0,13–0,18 mm, Rigid PVC |
| Plastic signs (screen printing, thermal transfer printing, digital printing, laser)Plastic | – | – | – | – | PVC, Polycarbonate, Polyester, Polystyrene, ABS laminated sheet |
| Labels (screen, inkjet and thermal transfer printing, lamination, UV protective coating, doming)Surface | – | – | – | – | Soft PVC films, Polyester films, Polyolefin film, Special paper, Aluminum foil |
| Mechanical processing (cutting, punching, hole punching, attaching rivets, thread cutting,Machining | – | – | – | – | Aluminum, Stainless steel, Brass, Nickel silver, Plastic |
| NC punchingForming | – | – | – | – | Aluminum, Stainless steel, Brass, Plastic |
| Anodizing (own anodizing plant, electroplating automatic line)Surface | – | – | – | – | Aluminum |
| Digital printing (anodized-layer inkjet, inkjet printing into anodized layer)Surface | – | – | – | – | Aluminum (anodized) |
| Variable marking (Nd-YAG and CO2 marking lasers, digital printing)Surface | – | – | – | – | Aluminum (anodized), Stainless steel (V2A), Brass |
| Laser marking (annealing coloration, molten ceramic ink, ink ablation, auxiliary layer ablation)Surface | – | – | – | – | Aluminum, Stainless steel, Brass |
| Screen printing processSurface | – | – | – | – | Aluminum, Plastic, Label materials |
| Assembly of assemblies (ready-to-install front panels/control units, keyboard films)Assembly | – | – | – | – | Aluminum, Plastic |
| Welding and soldering of metal signs (depending on alloy)Joining | – | – | – | – | Stainless steel, Brass, Nickel silver |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Anodizing plant / electroplating automatic line | – | – | – | – | Unnau |
| Screen printing machine | – | – | – | – | Unnau |
| Digital printing machine (anodized-layer inkjet, 1400 x 1400 dpi, approx. 0,6–1 qm/h) | – | – | – | – | Unnau |
| Nd-YAG marking laser | – | – | – | – | Unnau |
| CO2 marking laser | – | – | – | – | Unnau |
Additional services
Reference customers
Quality
Production takes place under a certified quality and environmental management system (ISO 9001, ISO 14001) according to the PDCA cycle. In the anodizing process, daily analysis values and all process-relevant measured values are continuously recorded, enabling gapless documentation of layer quality.
| Evidence | Unnau |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| IATF 16949 | |
| ISO 13485 |
History
- 1917
Ernst Strunk learns the trade of engraver in the Ruhr area; origin of the family tradition
- 1941
Anneliese Strunk marries the engineer Ernst Wenzelmann
- ca. 1945
Ernst Wenzelmann founds a manufactory in Unnau; production of etched metal signs by hand, acquisition of an anodizing plant and a screen printing machine
- Ende der
Gabriele and Ernst Ludwig Wenzelmann join the company; introduction of new technologies, materials and processes
- 2004
Initial certification to ISO 9001 and ISO 14001
- 2008
Christoph Wenzelmann receives his doctorate in mechanical engineering
- 2012
Dr. Christoph Wenzelmann joins the company as managing partner