assonic Dorstener Siebtechnik GmbH
About us
Sieves, Screens, and Strainers: We manufacture not only the right screens with precise openings, but also circular sieves and strainers for a wide range of industries and equipment.
Filtration Products: The fabrication and welding of nickel based filtration media is our specialty: polymer filtration products for plastic and fiber extrusion, Industrial elements for liquid and hot gay filtration, custom strainers and specialty filters.
Woven Wire Mesh: The right combination of mechanical properties, weave patters, openings and wire diameters results in the right cloth for your application. Services include: cutting to size, edge treatment, heat treatment, flattening and other finishing options. Our conversion services will help to reduce your overall cost.
Diffusion Bonded Metal Laminates: Diffusion bonding increases filtration performance, stability and workability. Benefits of diffusion bonded materials include stable poor geometry, increased strength, and improved filtration properties. Wire Cloth, Random Fiber and Perforated Metal Laminates are available in most nickel based alloys.
Our centers of competence in Europe and America can develope and produce metal filter media to fit your process. We have experience in all major market segments. Developing solutions for challenging filtration and screening demands is our strong suit. Dorstener produces, controls and fabricates the highest quality materials to insure precise filtration and separation. Our worldwide manufacturing facilities and consistent quality. Our corrosion and heat resistant media facture exact openings, proper flow conditions, and mechanical stability at an economical price. Our products are produced in accordance with ISO and ASTM standards.
Products & services
Siebbbespannung
Die Wiederbespannung von runden und rechteckigen Rahmen für alle Siebmaschinentypen kann mit verschiedenen Klebstofftypen geschehen
Rotary screening machine (RoSM) 700
creening processes play an important part in the primary industry’s quest for improvement of the end product. Achieving a high level of quality and increased screening yield with low space requirements and energy consumption motivated us to develop the assonic SONIC SPEED SCREEN™ RoSM700 high performance continuous screening machine. Features and advantages at a glance: Optimized screening performance for fine screenings due to screen baskets made of sintered stainless steel mesh or stainless steel screen cloth from 20 – 5,000 μm Elimination of the boundary layer resistances between powder and screen basket fabric Self-cleaning effect (ultrasound and medium frequency) Throughput rate increase by a factor of 1.5 - 10 by ultrasound and lower frequency stimulation of the screen basket Comminution of agglomerates and thus more complete reduction of oversized particles Adjustment to the rheology of the screened product by suitable lower-frequency screen basket stimulation and the use of digital ultrasound generators Easy change of color or product due to pull-out and swivel unit Low space requirement, uncomplicated integration into existing systems Flexible and complete control, possibility of integration into existing control systems Food compliant (EHEDG) and ATEX version (zone 20, 22) available
Wage sieving
Today, we use our many years of expertise in the screening sector to prepare even complicated and contaminated powders for you. In our laboratory in Radevormwald, we can treat any powder materials safely, precisely and contamination-free.
Compact screening machine (CSM) 500
The Compact Screening Machine with ultrasound stimulation for high performance screening of organic and inorganic powder material. As it is the case in many industries, batch sizes are getting increasingly smaller in the processing industry. That’s why we developed the new, fast compact screening machine. It is perfect for fine particle screening, for the preparation of individual batches and for use in laboratories as it effectively prepares fine and difficult products. Features and advantages at a glance: Optimized screening performance for fine sifting with screens made of sintered stainless steel mesh or stainless steel screen cloth from 20 – 1,000 μm Elimination of the boundary layer resistances between powder and screen basket fabric Self-cleaning effect (ultrasound and medium frequency) Adjustment to the rheology of the screened product by suitable low-frequency screen basket stimulation and the use of digital ultrasound generators Very low space requirement, uncomplicated integration into existing systems Optional basic or automatic full control, possibility of integration into existing control systems Food compliant (EHEDG) and ATEX version (zone 20, 22) available CSM 500 – compact machine design, high screening capacity for fine screening tasks