Test sieves come in various sizes to suit different applications and particle size ranges.
ASTM test sieves are available in several diameters:
- 3 inches (76mm)
- 6 inches (152mm)
- 8 inches (203mm)
- 10 inches (254mm)
- 12 inches (305mm)
- 18 inches (457mm)
These sieves can have full or half-height frames and different sieve sizes to accommodate a wide range of particle sizes.
5 Common Laboratory Sieve Sizes
Laboratory test sieves also come in various sizes:
- 3" (75mm) diameter screens with mesh sizes ranging from 4 mesh (4.75 mm) to 500 mesh (0.025 mm)
- 8" (200mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 500 mesh (0.025mm)
- 12" (300mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 500 mesh (0.025mm)
- 18" (500mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 325 mesh (0.045mm)
- 24" (600mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 325 mesh (0.045mm)
The mesh or sieve size depends on the specific application and the size range of the particles being measured.
Larger mesh sizes are used for larger particles, while smaller mesh sizes are used for smaller particles.
Materials and Construction
Lab sieves are used to measure particle size and can be made of various materials:
- Brass
- Stainless steel
- Brass frame with stainless steel mesh
The diameter of lab sieves can vary from 75mm to 500mm, and the sieve size ranges from 4mm to 38 microns.
When stacked on a vibrating screen, the top test screen has the largest mesh size, while the bottom screen has the smallest mesh size.
The sieve cover protects stored test sieves from dirt and dust.
The frame of the sieve is a circular metal ring that holds the mesh in place and can be made of stainless steel or brass.
The skirt of the sieve allows for stacking without tipping over.
Selecting the Right Sieve
In selecting the type of sieve, consider the separation media:
- Most sieves use metal or synthetic woven wire mesh
- Perforated metal plates and electroformed mesh are alternative separation media
The range of opening sizes for conventional ASTM/ISO test sieves with woven-wire mesh is 125mm to 20µm (5.0in to No.635).
The frame diameter of the sieve is important in matching the size of the sieve to the sample volume.
If the sample volume is too large for a small frame, particles may not find sieve openings, resulting in poor separations and incomplete size fractions.
A rule of thumb is that no more than one or two layers of material should remain on a sieve after separation is complete.
Continue Exploring, Consult Our Experts
Looking for high-quality test sieves for your laboratory? KINTEK offers a wide range of sizes, including 3 inches, 6 inches, 8 inches, 10 inches, 12 inches, and 18 inches, with full or half-height frames.
Our lab sieves come in diameters such as 3 inches, 8 inches, 12 inches, 18 inches, and 24 inches, catering to various particle size ranges.
Choose from mesh sizes ranging from 4 mesh to 500 mesh, depending on your specific application.
Trust KINTEK for all your laboratory equipment needs. Contact us today to learn more!
