Specialized manufacturing of porous sintered materials for filtration, bulk solids handling and safety technology.
Tridelta Siperm GmbH
DortmundNew on Amplifa
About us
Tridelta Siperm GmbH specializes in the development and manufacture of porous sintered materials of the SIPERM® series. These highly functional components are produced through targeted powder processing and controlled sintering. The materials include stainless steel (SIPERM® R), bronze (SIPERM® B) and polyethylene (SIPERM® HP). With a production capacity of up to 1,000,000 units per year, the company offers customized solutions for demanding industrial applications. The fields of application range from precision surface filtration and fluidization to aeration and sound attenuation systems, enabling a close partnership with customers.
- Site
- Dortmund
- Processes
- Manufacture of porous sintered materials (powder processing and controlled sintering), Manufacture of porous plates, tubes, discs, molded parts and custom designs/welded constructions, TIG welding of metallic porous sintered materials (welded constructions), Joining by riveting, soldering, bonding into components of any dimensions, Machining: milling, turning, drilling, Waterjet cutting and electrical discharge machining (without pore closure), Forming: rolling, bending, spinning, stamping (cold or moderately heated), Product testing: flow rate DIN ISO 4022, Bubble Point DIN ISO 4003, permeability ASTM F316-03
- Materials
- Porous stainless steel 1.4404 / AISI 316L (SIPERM® R), Porous bronze CuSn 10 (SIPERM® B), Porous polyethylene PE-UHMW / HDPE (SIPERM® HP), Welding filler material Thermanit JE-308 L Si, Welding filler material GE-316 L Si, Porous stainless steel SIPERM® R, Porous bronze CuSn 10 SIPERM® B, Porous polyethylene SIPERM® HP
- Certificates
- DIN EN ISO 9001:2015
- Founded
- 1922
- Employees
- 600+
- Industries
- Filtration, Bulk solids handling, Aeration, Degassing, Sound attenuation, Safety technology
- 01
Engineering / custom development
- 02
Powder processing and sintering
- 03
Manufacture of porous plates/tubes/molded parts
- 04
Welding and joining
- 05
Machining
- 06
Product testing and assembly
Materials & Processes
Porous stainless steel SIPERM® R
Used for applications with high thermal or mechanical stress.
Porous bronze CuSn 10 SIPERM® B
Suitable for mechanically stable components and specific media requirements.
Porous polyethylene SIPERM® HP
A polymer material for specific requirements in bulk solids handling and filtration.
Thermanit welding filler material
Used for TIG welding of metallic porous sintered materials.
Locations
Dortmund
DEProduction site
- Lot size
- 1 - 1,000,000
Hermsdorf
DESite (group)
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of porous sintered materials (powder processing and controlled sintering)Additive | – | – | – | 1 – 1,000,000 | SIPERM® R (stainless steel 1.4404 / AISI 316L), SIPERM® B (bronze CuSn 10), SIPERM® HP (polyethylene PE-UHMW / HDPE) |
| Manufacture of porous plates, tubes, discs, molded parts and custom designs/welded constructionsAdditive | – | 1000 mm (seamless tubes) × 280 x 220 mm or 250 x 250 mm (plates) | – | – | Stainless steel 1.4404 / AISI 316L, Bronze CuSn 10, Polyethylene |
| TIG welding of metallic porous sintered materials (welded constructions)Joining | – | – | – | – | Stainless steel AISI 316L / 1.4404, Bronze CuSn 10 |
| Joining by riveting, soldering, bonding into components of any dimensionsJoining | – | – | – | – | Stainless steel 1.4404, Bronze CuSn 10 |
| Machining: milling, turning, drillingMachining | – | – | – | – | SIPERM® R (stainless steel 1.4404) |
| Waterjet cutting and electrical discharge machining (without pore closure)Machining | – | – | – | – | SIPERM® R (stainless steel 1.4404) |
| Forming: rolling, bending, spinning, stamping (cold or moderately heated)Forming | – | – | – | – | SIPERM® R (stainless steel 1.4404) |
| Product testing: flow rate DIN ISO 4022, Bubble Point DIN ISO 4003, permeability ASTM F316-03Testing | – | – | – | – | SIPERM® R (stainless steel 1.4404), SIPERM® B (bronze CuSn 10), SIPERM® HP (polyethylene) |
| Engineering / custom development: design, material selection, customizedEngineering | – | – | – | 1 – 1,000,000 | SIPERM® R, SIPERM® B, SIPERM® HP |
Additional services
Quality Assurance
Production meets the highest quality standards, ensured by certified quality management and extensive product testing such as DIN ISO 4022, DIN ISO 4003 and ASTM F316-03.
| Evidence | Dortmund |
|---|---|
| DIN EN ISO 9001:2015 |
History
- 1922
Founding of the predecessor company Hermsdorf-Schomburg-Isolatoren GmbH (HESCHO).
- 1997
Acquisition of the production of the Magnetfabrik Aplerbeck in Dortmund.
- 2010
Takeover of a French arrester manufacturer by Areva, which temporarily raised group revenue to over EUR 60 million.
- 2015
The surge arrester division was sold to the Japanese Meiden Group and has since been called Tridelta Meidensha GmbH.
- 2023
Triwefo GmbH celebrated its 30th anniversary.