Sieves

Sieves are mesh-based separation tools that sort particles by size, passing material through a defined aperture to retain anything larger and let anything smaller fall through. In the laboratory they anchor particle size analysis, where a stacked column of graded apertures splits a sample into fractions a specialist can weigh and plot. The Questpair catalogue holds 132 sieve listings from 7 verified suppliers and distributors across 7 countries. Of these, 94 percent are used. New, used and refurbished units appear side by side, in stainless steel and brass, from woven-wire test sieves down to single-aperture control screens. Prices in the catalog span a wide band, from entry-level frames to full analytical sets.