Our unmatched experience includes providing innovative solutions for the production of specialty chemicals, zeolites and catalysts, silica, colors, pigments and lacquers, polymers, alumina, magnesium oxide, BPA, and a broad range of other products.
The right filter media for separation, purification, filtration, screening and sieving of a suspension or powder in the chemical process industry
In the chemical industry, efficient and economic liquid-solid and powder separation, drying and product screening for quality control is a vital processing stage and the key to success. Sefar offers a wide range of fabric filters and filter media designed for use on various filter equipment including:
Rotary drum filter
Pressure leaf filter
Vacuum belt filter
Sefar, a specialist in technical textiles, supports research and development departments, process engineers, and maintenance and production managers in achieving their goals concerning process optimization, process development and sustainability. Ecological and economically sustainable innovation of products and product filters is essential. Continuous improvement and further development of resource-saving, efficient and effective processes is a core task of the chemical industry. Mechanical, chemical, physical, biotechnological or process engineering projects confront chemical companies every day. Building up application knowledge combined with experimentation in the laboratory and implementing it into production, all require a competent partner. Sefar supports those experiments in the laboratory or production where mechanical separation takes place. Helping to optimize process equipment and implement the result in production environments in order to achieve optimal separation of the filtrate from the solid, is crucial for success.
Reduction of the residual moisture of the filter cake and improved cake release in automated filter presses
Improvement of particle retention and optimization of filter efficiency
Increase in production capacity
Reduced particle strike-through and increased filtrate clarity
Process improvement and increased efficiency in process engineering challenges
Reduction of the resistance to the filter medium of fabric filters
Improvement of the separation task and ensuring the quality of the screening
Fulfillment of all food conformity declarations under the heading of 'compliance', 'food conformity (FDA)' and any other associated certification
Optimization of the operating costs, total cost of ownership or sustainability projects
Wide selection of filter media
A wide range of monofilament and multifilament filter fabrics as well as mesh or screen filters and sifters guarantee the most appropriate filter fabric to achieve optimum yield. No matter if micro, vacuum, pressure or centrifugal filtration – whether it be the mechanical dehumidification of the filter cake, the increase in throughput or the improvement of particle retention, Sefar experts assist in the selection of the correct mesh size or pore opening of the filter depending on the particle size and requirements of the process. Sefar’s advice about the optimization of flow rates and pressure differences is complemented by the equally important advice about the compatibility of the filter with the corresponding filter apparatus. The choice of which of the various filter materials such as polypropylene (PP), polyester (PET), Teflon (PTFE), nylon (PA6.6), polyamide (PA such as Rilsan), PBT, PEEK, PPS, E-CTFE, ETFE and PVDF are used help to achieve the many chemical requirements of the filter elements in the acidic or alkaline range as well as to have the required solvent resistance. Sefar takes into account requirements for hydrolysis-critical, temperature-intensive processes and application areas for screening, separation, drying or filtration as well as special requirements for Food Conformity (FDA) and EU guidelines for food contact. Process optimization and improvement are not only possible in solid-liquid separation, but also in drying and screening technology.
Application know-how and customer support
In addition to the expertise in the field of filter fabrics, Sefar has broad application knowhow in the construction of filter elements. Beside roll goods, fabric cuts (e.g. laser-cut) and accessories, Sefar offers a wide range of ready-made filters: filter tube, filter bag, pocket filter, filter press cloth (single, overhang, double), belt filter, tubular fabric, leaf filter, disc filter, fluid-bed dryer (FBD) filter, dryer belts, drum filter sleeves, paint screening filter, pressure plate filter, press filter cloth, cartridge filter, centrifuge bag, centrifuge liner, nutsche filter, screens and sifters (centrifugal sifters or plansifters). Constant optimization of our product offering helps to solve customer's tasks quickly, efficiently and effectively. Simple installation and maintenance are the basic priorities kept in mind in the development stage and thus ensures constant and consistent high quality together with lasting success.
Sefar filter solutions for OEM
Our products meet the specific needs of these filtration applications and are successfully running all over the world on all known equipment brands and OEMs, such as:
Andritz Krauss Maffei
Bird Young Filter
Contact your local
Sefar offers innovative filter solutions for centrifuges, such as liners and bags for use in the chemical industry.
Vacuum Belt Filters
Sefar’s unique DLW construction, combining two different fabric layers, is the material of choice for horizontal vacuum belt filters.
Sefar has extensive experience in many applications and offers ready-made filter elements adapted to fit customer’s requirements like cake moisture, particles retention etc.
Nutsche Filter Dryers
Pressure Nutsche filters are simple and proven filter systems for solid-liquid separation, from medium sized batches to various filter media.
Rotary Drum Filters
Sefar’s innovative synthetic fabric is the material for rotary drum filters. Sefar filter belt and cover solutions offer excellent separation efficiency and a long, trouble-free lifetime.
Sefar is specialized in producing ready-to-use covers for leaf filters. Our products have been developed in close cooperation with leading equipment manufacturers.
Horizontal Disc Filters
Our filter cloths for disc filters are designed for long life and easy maintenance. They are available in special materials to withstand harsh chemicals and high temperatures.
Fluid Bed Dryers
Fluid bed dryers are used for drying, agglomerating or coating. Sefar is one of the leading manufacturers of tailor-made filters and spare-parts.
Vacuum Belt Dryers
Sefar’s innovative TETEX DRY fabrics are the ideal material, covering the most commonly-used brandwiths of drying temperature and solid content levels.
We offer a comprehensive range of filter bags for dust filtration in the chemical industry.