5%0ff Perforated metal teast sieve For Children's Day
Perforated Metal Test Sieve is a precision laboratory screening instrument that uses a metal plate (typically stainless steel, brass, or mild steel) with uniformly punched holes — round, square, or slotted — instead of woven wire mesh. It is designed for particle size analysis, grading, and quality control of granular and powdered materials.
How It Works
The sieve consists of a rigid metal frame holding a perforated plate bottom. The plate is manufactured by precision punching (or laser cutting) a sheet of metal to create consistent apertures. Material is fed onto the sieve, and particles smaller than the aperture size pass through, while larger particles are retained on top — enabling accurate size classification.
Hole Types & Sizes
| Hole Shape | Aperture Range | Typical Application | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Round | 1 mm – 125 mm | General particle sizing, aggregates, minerals | ||||||||||||
| Square | 4 mm – 125 mm | Grains, cereals, materials that clog round-hole mesh | ||||||||||||
| Slotted (Oblong) | 1 mm – 3.55 mm width |
Grain & cereal classification (ISO 5223) Key Features
|