
Bronze and aluminium castings for grave ornaments and industry: lettering, plaques, symbols as well as contract casting and CNC machining
Josef F. Filthaut Bronzegießerei GmbH
Rombrocker Bach 16, 58640 IserlohnNew on Amplifa
Family business since 1919
Since 1919, Josef F. Filthaut Bronzegießerei GmbH has produced castings in copper alloys (bronze) and aluminium at its site in Iserlohn. Its core business is the production of grave ornaments for the stonemasonry industry: letters and inscriptions, lettering and memorial plaques, symbols, figures, lanterns, vases, bowls as well as granite articles and accessories. In addition, the company has significantly expanded its contract casting business for industrial customers from Germany and Europe, producing castings to customer specifications. The value chain includes casting, CNC milling, grinding as well as patinating, toning and painting of surfaces. Hand craftsmanship combined with foundry expertise characterizes the production chain. Today, the family business is run by Christina Filthaut in the 4th generation. Custom-made products and design consulting with referrals to stonemason partners round out the offering.
- Site
- Iserlohn
- Processes
- Bronze casting / aluminium casting (castings for grave ornaments and industry), Contract casting for industrial customers, CNC milling, Grinding, Patinating / toning / painting (surface finishing), Custom-made products, Lettering of lettering and memorial plaques, Online lettering configurator
- Materials
- Copper alloys (bronze), Aluminium, Bronze, Granite, Bronze (copper alloys), CNC milling, Grinding, Patinating / toning / painting
- Founded
- 1919
- Industries
- Memorial/stonemasonry industry, Industry (castings)
- 01
Casting (bronze and aluminium casting)
- 02
CNC milling
- 03
Grinding
- 04
Patinating / toning / painting
- 05
Lettering
- 06
Quality control
Materials and processes
Bronze (copper alloys)
Classic material for letters, plaques, symbols and grave ornaments in various patinations.
Aluminium
Modern material for inscriptions, plaques and lanterns with brushed or ground surfaces.
Granite
Natural stone for lanterns, vases, bowls and grave articles in various color variants.
CNC milling
Machining of bronze and aluminium parts including machine setup and programming.
Grinding
Surface finishing and quality assurance during the grinding process.
Patinating / toning / painting
Surface finishing in delivery standards such as medium brown, dark brown, slate grey as well as hand-painted color variants.
Iserlohn site

Iserlohn
DEProduction and administration
- Materials
- Bronze, aluminium, granite
- CNC milling machine
- Grinding machines / grinding systems
Products and components




Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Bronze casting / aluminium casting (castings for grave ornaments and industry)Casting | – | – | – | – | Copper alloys, Aluminium, Bronze |
| Contract casting for industrial customersCasting | – | – | – | – | Copper alloys, Aluminium |
| CNC millingMachining | – | – | – | – | Bronze, Aluminium |
| GrindingSurface | – | – | – | – | Bronze, Aluminium |
| Patinating / toning / painting (surface finishing)Surface | – | – | – | – | Bronze, Aluminium |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Grinding machine / grinding system | – | – | – | – | Iserlohn |
| CNC milling machine | – | – | – | – | Iserlohn |
Additional services
History
- 1919
Founding of the bronze foundry; family-owned ever since, today in the 4th generation under Christina Filthaut
- 2024
Presence at the Stone+tec trade fair in Nuremberg (Hall 10, Stand D18), June 19–22, 2024
- 2024
Publication of a new product catalog with product novelties