Mechanical Sieves
Mechanical Sieves
Mesh device used to strain solids from liquids and manually separate particles by size; sieves can be constructed of metal or plastic. Products include sets, macro and micro sieve sizes, sifters and beads, etc.
What Is a Sieve?
Sieves are mesh strainers. They are typically round, with solid metal walls connected to a woven metal screen. They are often used with sieve receivers that collect the material that falls through the sieve. To prevent loss and contamination of the material, it can be protected by a sieve cover. Sieve covers are also necessary for covering the top sieve when multiple sieves are stacked on a laboratory shaker.
What Is Sieving?
Sieving is a technique for separating a sample into particles of different sizes. Sieving can be used to separate stones from sand and is used in the food industry to help eliminate contamination by foreign bodies.
Analysis by sieving may require a single sieve or a set of mesh sieves, arranged by decreasing size of the mesh openings. Air flow, liquid, vibration, or another mechanical method is used to move the sample particles through the screens.
Critical variables include sample size, agitation parameters, duration, and end point determination. Sample properties, like hygroscopic or electrostatic tendencies, can present analytical challenges, and some samples may need to be suspended in a liquid for accurate measurement.
Types of Sieves
Sieve frames and meshes may be stainless steel or brass. Common diameters are 3, 8, and 12 in. and 200 and 300mm; non-standard sieves may have other diameters, including 6, 10, and 18 in. Heights range from 1 to 9 in. and may be designated as full, intermediate, or half-height.
ASTM E-11 establishes criteria and tolerances for the openings in the woven wire mesh for standard sieve sizes. Some sieves are also traceable to NIST or must meet ISO 3310-1.
Fisherbrand™ Setacci in acciaio inox, diam. 200 x H 50 mm, con fori micrometrici
Utilizzare per separazione, frazionamento, determinazione delle dimensioni di particelle. Questi setacci in acciaio inox hanno un'altezza interna di 50 mm e un diametro di 200 mm. Sono disponibili in un'ampia gamma di diametri dei pori, inferiore a 1mm.
Fisherbrand™ Setaccio per analisi in acciaio inox con rete in filo intrecciato
Made from stainless steel and available in a wide variesty of sizes. Fisherbrand™ Stainless Steel Test Sieve with Woven Wire Mesh has an 100 mm diameter.
Fisherbrand™ Coperchi in acciaio inox per setacci
Providing a secure closure to Fisherbrand™ Stainless Steel Test Sieves.
Fisherbrand™ Filtro a membrana in nylon, 1 m x 1 m
For sieving or precision filtration of biological and chemical solutions. Fisherbrand™ Nylon Sieve Filters, 1m x 1m are available in a comprehensive range of pore sizes.
Fisherbrand™ Tela filtrante in nylon
For sieving or precision filtration of biological and chemical solutions. Fisherbrand™ Nylon Filter Cloths, 300 mm x 300 mm are available in a comprehensive range of pore sizes.
Linker Industrietechnik™ Setacci in acciaio inox
Sifts particles in a wide range of pore sizes. These stainless-steel test sieves have PVC welding and an internal height of 50 mm and diameter of 200 mm.
Fisherbrand™ U.S. Standard Stainless Steel Sieves, 8 in. dia. x 2 in.D
Stainless Steel. Aperture sizes from 5.00 in. opening to 500 mesh.
Bel-Art™ Inserti a rete aggiuntivi SP Scienceware™
Per l'uso con set di setacciatori micro Mini-Sieve™.
Fisherbrand™ Recipiente di raccolta in acciaio inox per setacci
Per la raccolta di materiali lavorati tramite setacci per analisi Fisherbrand™ in acciaio inox.
Fisherbrand™ Setaccio per analisi in acciaio inox con rete in filo intrecciato
Realizzato in acciaio inox, disponibile in un'ampia varietà di formati. Il setaccio per test in acciaio inox con rete in filo intrecciato Fisherbrand™ ha un diametro di 200 mm.
RETSCH Stainless-Steel Test Sieves, 100 mm Dia., in Micrometer Pore Sizes with ISO 3310/1
For use with Vibratory Sieve Shaker AS 200 control
Linker Industrietechnik™ Nylon Sieve Filter, 1m x 1m
For sieving or precision filtration of biological and chemical solutions. Linker Industrietechnik™ Nylon Sieve Filters, 1m x 1m are available in a comprehensive range of pore sizes.
Thermo Scientific™ USA Standard Sieves, 170 Mesh
Brass frame and Stainless-steel mesh sieves