Standard test sieve

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Standard test sieve is a screening tool used for particle size analysis of materials. The common mesh size is 20-500 mesh and is used for laboratory or production testing.

Aperture sizes: 0.02-2.36mm

Material:Stainless steel304/Brass/Chromeplate

Frame diameter::500/400/300/200/120/80/75mm, or others as your requirements.

Surface type: Woven Wire Mesh/Perforated Plate/Electroforming Mesh

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What is Standard test sieve?

Standard test sieve is a precision tool for particle size analysis and classification of granular materials, used to screen and separate materials of different particle sizes. It is mainly used in laboratories to perform standard inspections, screening, filtering, and testing on the particle size structure, liquid solid content, and impurity content of granular and powdery materials. It can automatically stop and can accurately separate 2 to 7 particle segments of granular materials at the same time.

What are the characteristics of Standard test sieve?

Highly accurate screening, using a high-precision micro-mesh screen, capable of screening particles ranging from 0.025 to 3mm.

Compact, lightweight, and easy to move, it features a portable handle, making it suitable for rapid deployment in the lab or field.

The platform-based design eliminates the need for fixed installation and can be placed directly on a lab bench or work surface.

A programmable automatic shutoff from 1 minute to 24 hours prevents operator error and ensures experimental reproducibility.

Constructed of wear-resistant and high-temperature-resistant 304 stainless steel, the surface features an anti-corrosion treatment, making it suitable for humid and dusty environments.

The structure of standard test sieve

Screen frame: generally made of stainless steel, brass or other corrosion-resistant materials to ensure screening accuracy and durability.

Screen: made of wire mesh or perforated plate, the aperture is strictly in accordance with international or national standards such as ISO, GB, ASTM, JIS, etc.

Screen cover and screen bottom: used to seal and collect screened materials to prevent sample loss.

What types of standard test sieve are there?

Brass sieves: Made of brass, they have weak corrosion resistance but are low cost. They are commonly used for particle size analysis and are easy to process but prone to oxidation.

Nylon sieves: Made of nylon, they are lightweight and wear-resistant, suitable for non-corrosive materials and anti-static, but have lower strength.

Stainless steel sieves: Made of 304 or 316 stainless steel, they are corrosion-resistant, heat-resistant, and have a long service life. They are suitable for precision grading and handling corrosive materials.

Perforated sieves: Stamped from metal plate, they offer a variety of hole patterns (round, square, etc.), high screening accuracy, and are suitable for screening large particles.

Circular hole sieves: Made of stainless steel or brass, they have circular holes and uniform mesh size. They are suitable for particle grading or size detection.

Woven mesh sieves: Made of woven wire, they have a fine mesh and good air permeability. They are widely used for screening powders or fine particles.

How does the standard test sieve work?

The working principle of the standard test sieve is based on the principle of vibration screening. The test sieve is usually composed of a sieve frame, a screen, a vibration mechanism and a support structure. When the test sieve is started, the vibration force generated by the vibration mechanism is transmitted to the sieve frame, causing the sieve frame and the screen to vibrate. After the particles are put into the sieve frame, they are affected by the vibration force and jump on the screen. Small particles fall into the container below through the sieve holes, while large particles remain on the surface of the screen. Through screens of different specifications, particles of different sizes can be separated and classified. Particles are separated during vibration, and the screening effect is affected by parameters such as amplitude and frequency. After screening, particle size analysis can be performed based on particle distribution to provide data support for production process optimization and product quality control.

Recommended table of standard test sieve mesh numbers

Mesh number (Mesh)	sieve hole diameter (mm)	sieve hole diameter (μm)	applicable fields
5	4.000	4000	sand, ore, coarse granular materials
10	2.000	2000	sand, chemical granules, coarse grains
20	0.850	850	granular fertilizer, plastic granules
40	0.425	425	cement, flour, medicinal powder coarse sieve
60	0.250	250	fine chemical powder, Pesticide powder
80	0.180	180	graphite powder, pigment powder
100	0.150	150	ceramic powder, food additives
120	0.125	125	metallurgical powder, mineral powder
200	0.075	75	fine chemicals, pharmaceutical powder
300	0.050	50	ultrafine powder, carbon powder
400	0.038	38	nanomaterials, catalysts
500	0.025	25	ultrafine chemicals, pharmaceutical powder

ASTM E11 - SIEVE DESIGNATION

Standard	Altern.	Standard	Altern.	Standard	Altern.
125.00 mm	5.00	9.50 mm	3/8	425 µm	No. 40
106.00 mm	4.24	8.00 mm	5/16	355 µm	No. 45
100.00 mm	4	6.70 mm	0.265	300 µm	No. 50
90.00 mm	3 ½	6.30 mm	¼	250 µm	No. 60
75.00 mm	3	5.60 mm	No. 3 ½	212 µm	No. 70
63.00 mm	2 ½	4.75 mm	No. 4	180 µm	No. 80
53.00 mm	2.12	4.00 mm	No. 5	150 µm	No. 100
50.00 mm	2	3.35 mm	No. 6	125 µm	No. 120
45.00 mm	1 ¾	2.80 mm	No. 7	106 µm	No. 140
37.50 mm	1 ½	2.36 mm	No. 8	90 µm	No. 170
31.50 mm	1 ¼	2.00 mm	No. 10	75 µm	No. 200
26.50 mm	1.06	1.70 mm	No. 12	63 µm	No. 230
25.00 mm	1	1.40 mm	No. 14	53 µm	No. 270
22.40 mm	7/8	1.18 mm	No. 16	45 µm	No. 325
19.00 mm	¾	1.00 mm	No. 18	38 µm	No. 400
16.00 mm	5/8	850 µm	No. 20	32 µm	No. 450
13.20 mm	0.530	710 µm	No. 25	25 µm	No. 500
12.50 mm	½	600 µm	No. 30	20 µm	No. 635
11.20 mm	7/16	500 µm	No. 35

AVAILABLE DIAMETERS IN WOVEN WIRE SIEVES

Diameter	Full Height	Half Height	Extra depth	Frame Material
8"	2"	1"	4", 8"	Stainless Steel
12"	3"	1"	6"	Stainless Steel
100 mm	40 mm	-		Stainless Steel
200 mm	50 mm	25 mm	100 mm, 200 mm	Stainless Steel
300 mm	75 mm	40 mm		Stainless Steel
400 mm	65 mm	-		Stainless Steel
450 mm	100 mm	60 mm	300 mm	Stainless Steel

AVAILABLE DIAMETERS IN PERFORATED PLATE SIEVES

Diameter	Full Height	Half Height	Frame Material
8"	2"	1"	Stainless Steel
12"	3"	1"	Stainless Steel
200 mm	50 mm	25 mm	Stainless Steel
300 mm	75 mm	40 mm	Stainless Steel
400 mm	65 mm	-	Stainless Steel
450 mm	100 mm	-	Stainless Steel

LIDS AND RECEIVERS - DIAMETERS AND MATERIALS

Diameter	Frame Material
8"	Stainless Steel
12"	Stainless Steel
100 mm	Stainless Steel
200 mm	Stainless Steel
300 mm	Stainless Steel
400 mm	Stainless Steel
450 mm	Stainless Steel

How many types of mesh are there for standard test sieves?

Standard test sieve mesh type 1: wire woven mesh

The most widely used mesh - square holes from 2.36mm to 0.02mm

Wire mesh screen: aperture range 0.02-2.36mm, good flexibility, suitable for most powder screening.

Wire woven mesh has low cost and good flexibility, but relatively high precision (large mesh is allowed), and the mesh may be deformed. The mesh precision can be controlled by expanding and shrinking the holes, and the holes can be fixed by electrochemical methods. Generally, manufacturers with high-precision mesh production capabilities are required to ensure mass production. The most widely used industry is the diamond industry, especially export manufacturers require a standard negative difference, because the foreign surplus is half a size different from that of China, and the basic particles account for more than 90%.

Standard test sieve mesh type 2: perforated plate mesh

Mainly used for large meshes - round and square holes from 0.2mm to several hundred mm

Perforated plate screen: aperture 0.2mm to hundreds of millimeters, strong impact resistance, mostly used for large particle materials (such as sand, gravel, coal samples).

Perforated plate mesh refers to a mesh that uses a punch press to punch out the target pattern in the plate to be processed. The materials include stainless steel, aluminum plate, hot and cold steel plate, copper plate, PVC plate film, etc. The mesh precision of the perforated plate mesh is uniform and not easy to deform. It is mainly used for the detection of large particles. The hole types include long holes, round holes, square holes, triangular holes, fish scale holes, bridge holes, diamond holes, pentagonal holes, hexagonal holes, eight-shaped holes, cross holes, nail holes, plum blossom holes, herringbone holes, I-shaped holes and other special-shaped holes.

Standard test sieve mesh type 3: electroforming mesh

Mainly used for high-precision screening - each mesh can be within the average error range

Electroformed thin plate screen: accuracy can reach 1 micron, used for high-precision analysis of ultrafine powders (such as nanomaterials).

Electroforming mesh is manufactured by electrochemical method, with the highest precision. Theoretically, the precision can reach one micron. The characteristic is that the mesh of the rigid structure will not deform. The particle size distribution of electroforming filter materials is significantly narrowed. Compared with woven wire mesh filter materials, it requires cleaner and less maintenance, allowing longer filtration time and service life to greatly improve production efficiency. It has a wide range of applications in high-precision laboratory particle size detection scenarios.

Scope of application of standard test sieves

①Particle size analysis of granular materials: used to determine the particle size distribution of powder or granular materials, such as sand, ore, metal powder, etc.

②Quality inspection of powder materials: such as fineness inspection of cement, flour, medicinal powder, etc., to ensure that the product meets the quality standards.

③Screening experiment: used for research laboratories and quality inspection agencies to study and test the particle size classification of materials.

How to use standard test sieve?

Standard test sieves are widely used in scientific research and production departments, laboratories, and quality inspection rooms in metallurgy, chemical industry, medicine, building materials, geology, national defense and other industries. They are used for vibration screening, filtration, and standard test detection of particle size structure, liquid solid content, and impurity content of granular and powdery materials.

Standard Test Sieve Application Cases

In building material quality control, standard test sieves are used for aggregate particle size analysis. A cement plant screened incoming sand and gravel using a 200mm Φ standard sieve set (with apertures of 4.75mm, 2.36mm, and 1.18mm, among others) and sieved them for 5 minutes using an electric vibrating screen. The results showed a 4.75mm sieve residue of 12%, meeting the GB/T 14684-2022 standard requirement of ≤15%, confirming that the batch of sand and gravel met the grade requirements.

In flour processing for the food industry, companies use 80-mesh and 100-mesh test sieves to test flour fineness, ensuring agglomeration-free and uniform particle size to meet baking process requirements.