Zinc die casting from the blank to the fully assembled, surface-treated assembly – foundry, machining and toolmaking from a single source.
Dipl.-Ing. Siegfried Müller Druckguss | Druckgießerei Formen- und Werkzeugbau GmbH & Co. KG
Velbert (administration, Langenberger Straße 149) · Velbert (production, Industriestraße 30-32)New on Amplifa
Company
Dipl.-Ing. Siegfried Müller Druckguss is a family-run company founded in 1948, now managed by the second generation and based in Velbert. The company manufactures demanding zinc die-cast parts using the hot-chamber process on 11 die casting machines with clamping forces of 20 to 315 tonnes; castable piece weights range from 1 g to 5 kg, with up to 400 components per hour possible depending on the cast part. The value chain includes design and development with CAD (Solid Works, Pro/Engineer) and mold filling simulation, in-house mold and toolmaking, machining, deburring, assembly of fully assembled units as well as arranging surface treatments via qualified suppliers. Zinc alloys in accordance with EN 12844 or primary alloys (smelter-grade refined zinc alloy per EN 1774:1997) from European manufacturers are used. The more than 2,000 different articles find buyers in industries such as medical technology, electrical engineering, automotive, mechanical engineering, furniture, lighting and sanitary ware as well as security and locking technology. The company employs over 90 permanent staff on more than 3,000 m² of production space in Velbert.
- Site
- Velbert
- Processes
- Zinc die casting (hot-chamber process), Machining, Mold and toolmaking (die casting molds), Surface coating (chrome plating, gilding, KTL, galvanizing, passivation, chromating), Assembly of fully assembled units, Deburring (trowalizing, grinding, thermal deburring), Design and development, mold filling simulation, Inspection and measuring technology, in-process monitoring
- Materials
- Zinc alloys per EN12844, Primary alloys / smelter-grade refined zinc alloy, Zinc alloys per EN 12844, Primary alloys (smelter-grade refined zinc alloy), Tool steel
- Certificates
- ISO 9001:2015, ISO 50001:2018, ISO 9001, ISO 14001, ISO 45001, ISO 50001
- Founded
- 1948
- Employees
- 90
- Industries
- Vehicle engineering (automotive), Mechanical engineering, Furniture industry, Electrical engineering, Electronics and telecommunications, Lighting technology and luminaire industry
- 01
Design and development (CAD, mold filling simulation)
- 02
Manufacturability analysis
- 03
Mold and toolmaking
- 04
Zinc die casting (hot-chamber process)
- 05
Deburring (trowalizing, grinding, thermal)
- 06
Machining
- 07
Surface treatment (via qualified suppliers)
- 08
Assembly
- 09
Logistics and warehousing
Materials & Processes
Zinc alloys per EN 12844
Standard material for die-cast parts with tight tolerances, thin-walled geometries and high repeatability.
Primary alloys (smelter-grade refined zinc alloy)
Raw material from renowned European zinc alloy manufacturers with continuous monitoring by an accredited testing laboratory.
Tool steel
Material used for in-house production of durable die casting molds.
Sites
Velbert
DEAdministration and production (Industriestraße 30-32)
- Part weight / size
- 1 g – 5 kg
- Lot size
- Prototype to large-scale series
- Materials
- Zinc alloys per EN 12844
- 11 hot-chamber die casting machines with 20–315 t clamping force
- Two-chamber furnaces
- 2 CAD workstations (Solid Works, Pro/Engineer, mold filling simulation)
- Mold and toolmaking
Reference Parts & Awards
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Zinc die casting (hot-chamber process)Casting | tight tolerances / tight SPC tolerance dimensions possible | – | 1 g – 5 kg | – | Zinc alloys per EN12844 |
| MachiningCutting | – | – | – | – | Zinc |
| Mold and toolmaking (die casting molds)Engineering | – | – | – | – | Tool steel |
| Surface coating (chrome plating, gilding, KTL, galvanizing, passivation, chromating)Surface | – | – | – | – | Zinc |
| Assembly of fully assembled unitsAssembly | – | – | – | – | Zinc |
| Deburring (trowalizing, grinding, thermal deburring)Surface | – | – | – | – | Zinc |
| Design and development, mold filling simulationEngineering | – | – | – | – | – |
| Inspection and measuring technology, in-process monitoringTesting | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Die casting machine (hot chamber) | – | 11 | Clamping force 20 t to 315 t; castable piece weights 1 g to 5 kg | – | Velbert |
| Two-chamber furnace | – | – | – | – | Velbert |
| CAD workstations | – | 2 | Solid Works, Pro Engineer, mold filling simulation software | – | Velbert |
Additional services
Quality
A quality management system certified to ISO 9001:2015 accompanies all work steps from the raw material to delivery. Comprehensive inspection and measuring technology monitors production in parallel with the production process; the zinc alloys are continuously checked by an accredited testing laboratory.
| Evidence | Velbert |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| ISO 45001 | |
| ISO 50001 |
History
- 1948
Founding of the company; family business, today run by the second generation.
- 1997
First certification to ISO 9001.
- 2014
First certification to ISO 50001.
- 2014
Winner in the zinc die casting competition of Initiative Zink (PC base housing, category electrical engineering + mechanical engineering) as well as a special prize for a dental camera housing (medical technology).
- 2016
Zinc die casting prize in the category security and locking technology (assembly of a mechanical door opener).
- 2020
Zinc die casting prize in the category medical technology (housing for dental X-ray device).
- 2022
Award in the zinc die casting competition of Initiative Zink, category lifestyle (turn signal housing for BMW R18 Heritage).
- 2023
Re-certification to ISO 9001:2015 and ISO 50001:2018 by DNV.