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.
Fritsch Milling And Sizing Inc Clamping Lid 100 mm with 1 Nozzle
With 1 nozzles for wet sieving with test sieves 100 mm dia.
The wet clamping lid features 1 nozzle which sprays the entire interior chamber, thus helping to flush the material through the sieve apertures.
Especially recommended for materials with a high electrostatic charge or very high content of fine material.
ATLANTIC BIOPHARM SOLUTIONS LLC 2IN TCX.265IN HOSE BARB SIEVE
2" TC x .265" hose barb-Sieve -I-EPLaser etch: INLET 2024-01INLET 2024-02INLET 2024-03INLET 2024-04INLET 2024-05INLET 2024-06INLET 2024-07INLET 2024-08INLET 2024-09
Cole-Parmer 3"-Diameter Sieve, Full Height Stainless Steel, No. 35 (500µ)
For use with Cole-Parmer sieve shaker (59986-01), sold separately. Order optional stainless steel cover (59988-03) and full-height receiving pan (59988-07), sold separately.
Bellco Glass, Inc. Cellector Complete,85 mL
Description: Cellector Complete, 85mL. MADE IN THE USA•Tissue Sieve Homogenizer, used to prepare cell suspensions and gel extractions of proteins•All stainless steel construction•Pan Dimensions: 1-1/4” OD x 2-1/2” W•Complete consists of: Cellector pan & key, glass pestle, 9 screens; 1 Ea from 10 to 150 mesh
Bellco Glass, Inc. Cell Screen/80mesh 190
Prepare cell suspensions and gel extraction of proteins. The stainless steel screens are held in place by a retaining ring on the bottom of the pan that is tightened using the screen replacement key. The screens are available in different mesh sizes and have a diameter of 37mm. MADE IN THE USA. Specifications:Stainless Steel Size: 190Case Quantity: 5
Gilson Company Inc 3" Sieve, Brass/Stainless, Full Height, No. 80
3in (76mm) diameter ASTM E11 Test Sieve has stainless steel woven-wire cloth with No. 80 (180µm) openings and full height brass frame. The overall height is 1-3/4in and the stacked height is 1-1/8in.
Grainger Sieve Shaker Conversion Kit
The Grainger website offers electric sieve shakers for laboratory use, designed to separate materials by particle size with standard test sieves. They feature variable speed controls, built-in timers, and durable metal construction. Models include the W.S. Tyler Ro-Tap with 8-inch and 12-inch capacities and the Gilson SS-15 with a 15-inch capacity. These shakers enable efficient, reproducible sieving for soil testing, powder classification, and quality control, with customizable settings for different materials and sizes.