Filtra International / Industrial separation equipment
Round vibratory separators, high-capacity rectangular screening machines and pharmaceutical aseptic filter dryers. Engineered solutions for dry powder screening, particle classification, wet screening, dewatering and contained pharmaceutical solid-liquid processing.
Three families / one technical partner
Each machine family answers a different separation requirement. Filtra International supplies application-specific equipment, including Filtra-branded configurations where suitable. The best choice depends on feed characteristics, required particle cut, process capacity, moisture content and containment needs.
Compact, flexible vibrating sieves for particle classification, safety screening, oversize removal and solid-liquid separation. Single- or multi-deck configurations for suitable wet and dry processes.
View round separator →
Large screening area and controlled solids transport for high-throughput dry screening, slurry processing, scalping and dewatering. Motion and deck arrangement can be selected for the duty.
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Contained batch systems for filtration, product washing, dewatering and controlled vacuum drying of valuable pharmaceutical solids. Lab, pilot and production-scale options.
Explore five filter dryer sizes →Equipment selection guide
The technologies share a screening principle but differ in process duty, operating mode and separation objective.
| Selection factor | Round separator | Rectangular separator | Pharmaceutical filter dryer |
|---|---|---|---|
| Primary purpose | Grading, safety screening and solid-liquid separation | High-capacity screening, solids conveyance and dewatering | Contained batch filtration, washing and drying |
| Typical feed | Powders, granules, slurries and process liquids | High-volume powders, viscous slurries and wet solids | Pharmaceutical crystals, API slurries and valuable solids |
| Operating mode | Usually continuous screening | Usually continuous screening | Controlled batch processing |
| Key selection variables | Diameter, screen opening, decks, motion and throughput | Deck area, motion, angle, solids loading and drainage | Batch mass, wash steps, screen medium, vacuum and drying conditions |
| Typical customers | Food, chemicals, coatings, plastics, industrial processing | Chemicals, minerals, wastewater, high-volume industrial plants | Pharmaceutical and fine chemical development or manufacturing |
Screen opening is not the same as guaranteed separation efficiency. Feed particle-size distribution, particle shape, screening motion, solids concentration, screen loading and operating conditions all affect the actual cut and capacity. Filtra can review these parameters for your project.
Machine family 01 / Round separators
Circular industrial screening machines use controlled multi-plane vibration to move material across one or more mesh decks. Fine particles or liquid pass through the screen, while oversize material is retained and discharged separately.
Use round vibratory separators for powder classification, dusting, safety screening, liquid-solid separation, slurry screening and recovering useful product from process streams. Single- and multi-deck arrangements can separate one or several size fractions.
Machine family 02 / Rectangular separators
Rectangular vibrating screening machines provide an extended deck for solids transport and separation. Their geometry is particularly useful when high flow, high solids loading, drainage or residence-time control is important.
Depending on the selected model, circular, elliptical or linear motion can be used to balance conveying speed, solids movement, drainage and screening effectiveness. Configurations may include single or multiple decks and optional spray or screen-cleaning arrangements.
Machine family 03 / Pharmaceutical aseptic separation
Designed for pharmaceutical solids and crystal slurries, enclosed vibratory filter-dryer systems can perform several batch operations within one contained processing chamber. The selected configuration may combine slurry filtration, washing, dewatering and vacuum drying with controlled inert-gas flow.
Separate the liquid phase from valuable retained solids.
Wash the retained filter cake as the process requires.
Drain residual liquid while maintaining containment.
Dry the solid product with controlled conditions and suitable gas handling.
The masses below identify nominal product-family variants; achievable batch weight depends on product bulk density, process conditions and the final design.
Pharmaceutical process selection: the required containment, materials, cleaning strategy, vacuum capability, product sensitivity and quality documentation are specified for each installation. Filtra can support selection and technical discussions from laboratory development through production scale. See also our pharmaceutical filtration solutions.
Application expertise
A correctly selected screener can protect downstream equipment, classify valuable product and recover solids. Below are typical duties for the relevant machine family.
DRY SCREENING
Separate fine and coarse particles in chemical powders, minerals, polymers and granular raw materials.
QUALITY CONTROL
Remove oversize material, agglomerates and unwanted debris before filling, blending or downstream equipment.
WET PROCESSING
Screen suspended solids, reduce coarse contamination and drain liquid from suitable slurry streams.
FOOD & INGREDIENTS
Selected hygienic designs for powders, granules and compatible liquid ingredients, according to process requirements.
CHEMICALS & MATERIALS
Screen particles and oversize matter from pigments, fillers, resin compounds and suitable coating-related process streams.
PHARMACEUTICAL SOLIDS
Contained batch separation and optional washing, dewatering and drying for valuable solid products.
Engineering and process trials
Screen opening alone does not determine machine capacity. Filtra International can help select a suitable separator and arrange evaluation using representative materials, pilot equipment or selected rental configurations where relevant.
Technical questions
A round vibratory separator is a compact, circular screening machine commonly selected for particle grading, safety screening and many wet or dry duties. A rectangular separator offers a longer screening deck and is often selected when higher throughput, solids transport, slurry drainage or residence-time control are important. The best choice depends on the feed and separation objective.
Yes. Suitable round and rectangular separators can be configured for dry powders, granules, wet slurries and liquid-solid separation. The screen medium, motion, discharge arrangement and materials must match the process conditions.
Screen opening is selected from the required particle-size cut, particle-size distribution, particle shape, feed concentration and acceptable oversize or undersize fraction. Available options on Filtra's industrial separator product pages extend from fine micron openings to millimetre-scale screens. Actual screening performance should be assessed for the application.
Yes. Safety screening and scalping are common uses of industrial vibrating sieves. A correctly configured screen can retain oversize particles, agglomerates and unwanted solid material while allowing the acceptable product fraction to pass.
A rectangular vibrating screen may be appropriate when the process benefits from an extended screening deck, controlled conveying speed and residence time, and a defined drainage or retained-solids discharge arrangement. Final performance depends on the feed slurry and screen design.
It is an enclosed batch-processing system for separating pharmaceutical solids from a slurry and, depending on configuration, washing, dewatering and vacuum drying the retained product in the same chamber. It is intended for contained solid-liquid processing and differs from a conventional continuous powder screening machine.
Filtra International currently lists nominal 0.65 kg, 1 kg, 5 kg, 15 kg and 25 kg configurations spanning laboratory, pilot and production use. Actual workable batch mass depends on the bulk density, process conditions and specified equipment configuration.
Filtra International can discuss screening trials, pilot evaluations and selected temporary equipment arrangements. Trials and rental options are configured around the process objective, available equipment and project conditions.
Speak to Filtra International
Send your product characteristics, target capacity and separation objective. We can help you review round separators, high-capacity rectangular machines and pharmaceutical batch filter-dryer options.
