Development, manufacture and maintenance of rotary screen cylinders for the pulp and paper industry since 1877.
Maschinenfabrik Raschau GmbH
08340 SchwarzenbergNew on Amplifa
Rotary screen cylinder manufacturing with over 100 years of tradition
Maschinenfabrik Raschau GmbH, based in Schwarzenberg (Erzgebirge), specializes in the development, manufacture and maintenance of rotary screen cylinders and serves the pulp, paper, board and cardboard industry both nationally and internationally. The company manufactures rotary screen cylinders in three designs: supporting-cross construction for speeds up to 60 m/min and line loads up to 8 N/mm, self-supporting construction for up to 160 m/min and 10 N/mm, and disc construction for line loads up to 15 N/mm. All cylinders are made from corrosion-resistant stainless steel and high-quality non-ferrous metals; the screening is done with lower and upper wires made of stainless steel, phosphor bronze and polyester, on request with a round-wire spiral instead of the lower wire. As the successor to F.H. Riedel Maschinenfabrik Raschau, founded in 1877, the company combines craft tradition with modern technology. In addition to cylinder manufacturing, it offers engineering custom solutions, plant service, repair, maintenance as well as assembly and disassembly work along the process lines of paper and pulp production, including a repair service for SULZER process pumps and ERHARDT+LEIMER felt and wire run guides.
- Site
- Schwarzenberg
- Processes
- Manufacture of rotary screen cylinders (supporting-cross construction), Manufacture of rotary screen cylinders (self-supporting construction), Manufacture of rotary screen cylinders (disc construction), Screen covering of cylinders (lower and upper wires, endless or diagonal design, also on, Covering with round-wire spiral instead of the lower wire, Plant construction for pulp and paper production (design modification, development of new solutions,, Repair and maintenance of rotary screen cylinders (also from other manufacturers), Repair and maintenance work on assemblies and individual parts of process lines (pulp,
- Materials
- Corrosion-resistant stainless steel, High-quality non-ferrous metals, Phosphor bronze, Polyester (screen fabric), Non-ferrous metals, Polyester
- Founded
- 1991
- Industries
- Pulp industry, Paper industry, Board and cardboard
- 01
Engineering and design
- 02
Cylinder manufacturing (supporting-cross, self-supporting or disc construction)
- 03
Screen covering in-house or on site
- 04
Maintenance, repair and assembly at the customer
Materials and screening technology
Corrosion-resistant stainless steel
Material for cylinder manufacturing and screen covering, corrosion-resistant in the wet area of paper production.
Non-ferrous metals
High-quality non-ferrous metals as base material of the rotary screen cylinders.
Phosphor bronze
Material for lower and upper wires in endless or diagonal design.
Polyester
Screen fabric for upper wires in endless design or as shrink-fit screens.
Site
Schwarzenberg
DEHeadquarters / Production
- Materials
- Stainless steel, non-ferrous metals, phosphor bronze, polyester
Products and assemblies
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of rotary screen cylinders (supporting-cross construction)Joining | highest true-running accuracy | – | – | – | corrosion-resistant stainless steel, non-ferrous metals |
| Manufacture of rotary screen cylinders (self-supporting construction)Joining | – | – | – | – | corrosion-resistant stainless steel, non-ferrous metals |
| Manufacture of rotary screen cylinders (disc construction)Joining | – | – | – | – | corrosion-resistant stainless steel, non-ferrous metals |
| Screen covering of cylinders (lower and upper wires, endless or diagonal design, also onAssembly | – | – | – | – | corrosion-resistant stainless steel, phosphor bronze, polyester |
| Covering with round-wire spiral instead of the lower wireAssembly | – | – | – | – | stainless steel |
| Plant construction for pulp and paper production (design modification, development of new solutions,Engineering | – | – | – | – | – |
| Repair and maintenance of rotary screen cylinders (also from other manufacturers)Assembly | – | – | – | – | – |
| Repair and maintenance work on assemblies and individual parts of process lines (pulp,Assembly | – | – | – | – | – |
| Assembly and disassembly work in the paper/pulp industryAssembly | – | – | – | – | – |
| Repair service for SULZER process pumps (also ALSTOM pumps)Assembly | – | – | – | – | – |
| Repair service for ERHARDT+LEIMER felt and wire run guides or felt and wire tensionersAssembly | – | – | – | – | – |
Additional services
Reference customers
History
- 1877
Foundation of F.H. Riedel Maschinenfabrik Raschau
- 1920
Start of rotary screen cylinder manufacturing
- 1972
Renamed VEB Rundsiebzylinderbau Raschau
- 1975
Renamed VEB Papiermaschinenwerke Freiberg / Werk Rundsiebzylinderbau Raschau
- 1991
Foundation of Maschinenfabrik Raschau GmbH