Test Sieve

What Is a Test Sieve?

Test sieve is also called laboratory test sieve.is a common tool used in various industries and laboratories to separate particles based on their sizes. These sieves consist of a metal frame with a woven wire mesh that allows particles smaller than the mesh size to pass through while retaining larger particles.

Test sieve is a common tool in laboratories and industries. It is used to screen granular materials and analyze particle size distribution. It can quickly and effectively measure the size of solid particles from 125 mm to 20 microns. It is usually available in 100mm, 200mm, 300mm and other models. It can also be customized into 75mm and 400mm according to customer requirements. Stainless steel, nylon and brass are also available.

Types of Test Sieves

There are two types of sieves: dry test sieves and wet wash test sieves.

Dry Test Sieves: For dry samples, the dry sample is poured onto a stack of sieves with decreasing sieve hole sizes. The sieves are then shaken or vibrated to separate particles based on particle size. Can be time consuming for large samples and may not be suitable for sticky or cohesive materials.

Wet Wash Test Sieves: For wet samples or sticky materials, it is effective in separating sticky or cohesive materials and may provide more accurate results for fine particles. The wet sample is poured onto a stack of sieves with decreasing sieve hole sizes. Water or a suitable liquid is then sprayed or poured onto the sieves to help separate the particles. The sieves are then washed and rinsed to remove any residue.

What Size Are Test Sieves?

1. Diameter of the test sieve

The diameter of the test sieve generally has the following common specifications:

200mm: This is the most commonly used diameter in the laboratory and is suitable for most samples.

300mm: Suitable for large particle samples or when a larger screening area is required.

Other specifications: 100mm, 400mm, etc., select according to needs.

2. Material of the test sieve

The materials of the test sieve are mainly the following:

Stainless steel: The most commonly used material, with the advantages of corrosion resistance, high temperature resistance, high strength, etc., suitable for most samples.

Brass: Suitable for non-corrosive samples, the price is relatively low.

Nylon: Suitable for soft samples to avoid scratches on the samples.

Other materials: ceramics, rubber, etc., selected according to the characteristics of the sample.

3. Mesh shape of the test sieve

Circular mesh: It is the most common shape, with precise aperture size and high screening efficiency. It is suitable for screening most granular materials, such as soil, sand, gravel, powder, etc. The screen with a circular mesh is not easy to clog during the screening process and can effectively separate particles of different particle sizes.

Square mesh: It has high rigidity and is not easy to deform. It is suitable for screening irregularly shaped particles. It is suitable for screening fibrous, flaky or flat materials, such as minerals, fibers, films, etc. The square mesh screen can better control the passing direction of particles during the screening process.

Test Sieve Specifications

You can also choose the machine according to your requirements, refer to this parameter: Note: The voltage and power in the table can be customized according to your requirements to suit your machine's working environment.

NO.	Name	Unit	Parameter
1	frame diameter	mm	φ200
2	the number of layer	s	1~8
3	sieve size	mm	0.025-3
4	vibrating amplitube	mm	1~4
5	vibration frequency	n/min	1440
6	power supply	V;HZ;KW	220;50;0.12
7	outside dimension	LWH	350*350*(300+n*56)
8	machine weight	kg	36
9	time alarm	s	999
10	noise	db	Less than 50

Different Types of Screen Materials

Test sieve pictures
	Woven mesh test sieve	Perforated plate test sieve	Electroforming test sieve
Test sieve surface
diameter	75mm/200mm/300mm	200mm/300mm	75mm
Mesh size	2.36mm-0.038mm	≥3mm	500mm-5μm
Material	Stainless steel/brass/tin bronze	Red copper	Stainless steel
standard	SO3310-2:1990 R20/3、R20、R40/3	SO3310-2:1990 R20/3、R20、R40/3	SO3310-2:1990 R20/3、R20、R40/3
Feature	Low cost, wide application range, light weight, durable	The most wear-resistant, suitable for materials with high density, large impact on the screen surface, and irregular shapes	The highest accuracy, used in high-precision laboratory scenarios

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