Lab Sieve

What is a Lab Sieve?

Lab sieve is a device used to separate and classify particles of different sizes by passing them through a mesh or perforated surface, usually used in laboratories for particle size analysis and quality control testing of materials, sieves are usually made of fixed mesh or sieve Composed of a frame and a disc that collects material passing through the sieve, the mesh or sieve is selected according to the size range of the particles to be measured, ranging from 125mm to 20μm.

Lab sieve diameters include 75mm, 100mm, 200mm, 300mm, 400mm, and are usually made of high-quality materials such as stainless steel or brass to ensure durability and long-lasting performance. They are available in a variety of sizes and meshes, depending on the specific application and size range of the particles being measured.

What is the function of lab sieve?

The role of lab sieve is mainly reflected in the following two aspects:

Particle classification: Lab sieve can separate and classify mixed particles or powder samples according to different particle sizes according to the pore size of the sieve, helping experimenters classify samples quickly and accurately. Particle screening: Lab sieve can help experimenters screen out particles of the required size, remove impurities or unwanted particles, and ensure that the particles used in experiments or production processes meet the requirements.

Lab Sieve Sizes

Lab sieves are available in a variety of sizes, usually specified by the diameter of the sieve frame and the size of the mesh or screen. Common laboratory sieve sizes include:

1. 3" (75 mm) diameter screens with mesh sizes ranging from 4 mesh (4.75 mm) to 500 mesh (0.025 mm)

2. 8" (200mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 500 mesh (0.025mm)

3. 12" (300mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 500 mesh (0.025mm)

4. 18" (500mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 325 mesh (0.045mm)

5. 24" (600mm) diameter screens with mesh sizes ranging from 4 mesh (4.75mm) to 325 mesh (0.045mm)

The mesh or sieve size of the lab sieve depends on the specific application and the size range of the particles being measured. In general, use a larger mesh size for larger particles and a smaller mesh size for smaller particles.

The below table shows the detailed data of different models of lab sieves use stainless steel 304 test sieves for your reference.

Mesh shape	Diameter	Effective screen surface diameter		H
		Min	Max
round	75mm	75mm	65mm	25mm
	200mm	200mm	185mm	25mm, 50mm
	300mm	300mm	275mm	75mm
square	300mm	300mm		75mm

What is a lab sieve used for?

The lab sieve is a versatile tool that can be used for a variety of applications in a laboratory environment, some common applications include:

1. Particle size analysis: commonly used for particle size analysis of various materials, including powder, granules and other solid materials. The particle size distribution of a material can be determined by passing the material through a series of sieves with progressively smaller mesh sizes.

2. Quality Control Testing: Used for quality control testing to ensure that materials meet specific size and quality specifications. For example, in the food industry, sieves can be used to ensure that flour or other ingredients meet specific particle size requirements.

3. Material Sorting: Can be used to sort material into sections or grades of different sizes. This is useful in industries such as building materials, where materials such as sand or gravel may need to be separated into different size ranges for specific applications.

4. Separation of impurities: it can be used to separate impurities or foreign matter from materials. For example, in the pharmaceutical industry, sieves are used to remove oversized or undersized particles from pharmaceutical formulations.

5. Soil analysis: Commonly used in soil analysis to determine the particle size distribution of soil samples. This information can be used to determine soil properties such as permeability and water retention.

How does lab sieve work?

Working principle of lab sieve is to place mixed particles or powder samples on the sieve through the pore size of the sieve, and then mechanically vibrate or manually shake the sieve, so that the particles are separated through the sieve holes according to size, and the smaller particles pass through the sieve. The larger particles are blocked on the screen to achieve separation and screening of particles, thereby achieving the purpose of classifying particles of different sizes.