Plastic Pellets Test Sieve

What is a plastic pellets test sieve?

Plastic pellets test sieve is essentially a tool used to determine whether the size of plastic particles meets the requirements. It can perform fine particle size analysis on plastic particle samples of various shapes and relatively low density. Its purpose is to accurately determine the size distribution of plastic particles, identify and separate unqualified products, fine powder and impurities.

Through standardized sieve mesh and efficient structural design, it ensures the accuracy, repeatability and ease of operation of the screening process, and provides key data for quality control of plastic raw materials, process optimization and product performance evaluation.

Video of plastic pellets test sieve

What is the purpose of plastic pellets test sieve?

Plastic pellets test sieves have a wide range of uses and are essential for quality control and process optimization in the plastics industry. Recycling, increased production efficiency and compliance with industry standards are the main reasons for their use.

Quality control

Particle size control: Plastic pellets test sieve ensure that the particle size distribution of plastic particles is within the required range, which is crucial for subsequent processing (such as injection molding, extrusion). Uneven particle size will lead to unstable product quality.

Impurity removal: Plastic pellets test sieve remove impurities in plastic particles, such as metal chips, dust, foreign matter, etc.

Shape detection: Plastic pellets test sieve can detect whether the shape of particles is regular, and remove unqualified particles such as deformation and damage.

Improved production efficiency: Plastic pellets test sieves are automatically screened to reduce the workload of manual inspection, timely screen out unqualified particles, and reduce the generation of waste caused by raw material problems.

Recycling: Plastic pellets test sieves sort recycled plastics, separate different types of plastics, remove impurities in recycled plastics, and improve the quality of recycled plastics.

Meet industry standards: Plastic pellets test sieve ensure that the quality of plastic raw materials and products meets relevant industry standards and customer requirements.

What is the working principle of plastic pellets test sieve?

The working process of plastic pellets test sieve is as follows:

Feeding: Plastic particles enter the screen from the feed port.

Vibration: The vibration motor provides power to vibrate the screen surface, prompting the plastic particles to move along the surface of the screen.

Screening: According to the size of the plastic particles and the aperture of the screen, larger plastic particles are blocked on the screen, while smaller plastic particles pass through the holes of the screen.

Grading: Plastic particles of different particle sizes are divided into different levels, collected in different screening areas, and finally output through the discharge port.

What types of plastic pellets test sieves are there?

Plastic pellets test sieves can be divided into many types according to the screening method, detection technology and sieve structure. These types are specially designed for particle size analysis, classification or quality control of plastic granules.

Classification by screening method: sonic detection screen, magnetic suspension detection screen, standard detection screen, ultrasonic detection screen

>Screening method >Picture >features >application scenario

Sonic detection screen		using sonic vibration for screening, suitable for screening of fine particles	high-precision screening occasions
Magnetic suspension detection screen		using magnetic suspension technology to reduce mechanical friction and improve screening efficiency	high-precision and high-efficiency screening
Standard detection screen		traditional mechanical vibration screen, simple structure, easy operation	conventional particle size classification and quality control
Ultrasonic detection screen		using ultrasonic vibration to prevent sieve hole clogging and improve screening accuracy	high-precision, easy-to-clog screening occasions

Classification by detection technology:

Optical detection screen: Optical detection screen uses optical imaging technology to detect the size, shape, color, etc. of plastic particles, which is suitable for high-precision and automated detection.

X-ray detection screen: X-ray detection screen uses X-ray technology to detect impurities inside plastic particles, such as metals, foreign matter, etc.

Applicable to high-demand impurity detection.

Classification according to screen structure: woven mesh screen, perforated plate screen, electroformed screen

Screen structure	Picture	Features	Application scenarios	Picture
Woven mesh screen		The screen is woven by metal wire, with uniform aperture	Conventional particle size screening
Punching plate screen		The screen is punched by metal plate, with high strength and durability	Large particle screening and high-strength occasions
Electroformed screen		The screen is made by electroforming process, with high precision and consistent aperture	High-precision screening and small particle screening

What are the advantages of plastic pellets test sieves?

Plastic pellets test sieve is specially designed for screening plastic granules or similar materials. It has many advantages due to its material properties and design. Compared with other test sieves, it can solve the problems of plastic granules becoming sticky when wet, irregular shapes, large particle size differences, and static electricity on the surface of plastic granules.

Solve the problem of large differences in the size of plastic particles: large particles and small particles may be mixed during the screening process. Plastic pellets test sieve gradually screens the particles through multiple layers of screens. Different levels of screens can handle particles of different sizes to achieve finer classification.

Solve the wettability and stickiness of plastic particles: plastic particles may become sticky when wet, causing adhesion between particles, increasing screen resistance and reducing screening efficiency. Plastic pellets test sieve can increase the vibration frequency and amplitude of the screening equipment, allowing particles with strong stickiness to separate from the screen surface.

Deal with the problem of adhesion between plastic particles: Since the surface of plastic particles is prone to static electricity, the particles may adhere to each other. During the screening process, by installing an anti-static device on plastic pellets test sieve, the static charge of the particles is reduced to prevent the particles from sticking together.

Dealing with the problem of irregular shapes of plastic particles: The shapes of plastic particles are often irregular, which may be spherical, long strips or fragments. The vibration of plastic pellets test sieve is used to ensure that the irregularly shaped particles are fully in contact with the screen surface and pass through the screen pores.

Technical specifications of plastic pellets test sieve

Model	Screen diameter	Number of screening layers	Motor power	Processing capacity	Applicable materials
DH-400	400mm	1-3layers	0.25-0.55kW	100-300kg/h	Small batch, fine particle screening
DH-800	800mm	1-4layers	0.75-1.1kW	300-600kg/h	Medium batch, conventional particle screening
DH-1200	1200mm	1-5layers	1.5-2.2kW	600-1000kg/h	Large batch, multiple particle size screening

Comparison table of mesh number and aperture of plastic pellets test sieve

Number	mesh (mm)	Number	mesh (mm)	Number	mesh (mm)	Number	mesh (mm)
2	13	26	0.71	90	0.16	260	0.06
3	6.5	28	0.63	100	0.154	280	0.055
4	5	30	0.6	110	0.14	300	0.054
5	4	32	0.55	115	0.13	320	0.048
6	3 .2	36	0.5	120	0.125	325	0.045
7	2.8	40	0.45	130	0.111	350	0.041
8	2.5	45	0.4	140	0.105	360	0.4
9	2.2	50	0.355	150	0.1	400	0.0385
10	2	55	0.315	160	0.098	500	0.03
12	1.6	60	0.3	180	0.09
14	1.43	65	0.25	190	0.08
16	1.25	70	0.22	200	0.075
18	1	75	0.2	220	0.07
20	0.9	80	0.18	240	0.065
24	0.8	85	0.17	250	0.063

Application of plastic pellets test sieve

The application of plastic pellets test sieve covers multiple links such as plastic production, recycling, quality control, process optimization and research and development. Through screening, the uniformity of particles can be ensured, impurities can be removed, product quality can be improved, and production efficiency can be optimized. Its application is not limited to the plastic industry, but also extends to chemical, food, medicine and other fields. It is an indispensable equipment in modern industrial production.

Recommended mesh number of plastic pellets test sieve

The recommended mesh size for test plastic pellets depends largely on the size range of the plastic pellets being tested (e.g., fines, oversized pellets, or overall size distribution).

Coarse particle screening: You can choose a sieve with a lower mesh number, such as 20 mesh or 40 mesh, which is suitable for coarse particle plastic or impurity removal.

Medium particle screening: You can choose a sieve with a medium mesh number, such as 60 mesh or 80 mesh, which is suitable for conventional plastic particle classification.

Fine particle screening: You can choose a sieve with a high mesh number, such as 120 mesh or higher, which is suitable for fine or ultra-fine particle screening, such as high-precision quality control.

Plastic pellets test sieve price

The price of plastic pellets test sieve depends on many factors, including brand, model, etc. The price will also be affected by market supply and demand, material price fluctuations and other factors. It should be noted that when purchasing a plastic particle detection sieve, it is recommended to choose a suitable model according to your own needs and budget, or you can communicate directly with Dahan suppliers to obtain the most accurate quotation.

Plastic Pellets Test Sieve Manufacturer

Dahan Machinery is a professional screening equipment manufacturer. Its plastic particle detection sieve is known for its high efficiency, precision and durability, and is suitable for a variety of screening needs in the plastics industry. If you have related needs, you can directly contact customer service through the bottom right or email to get more information or customized solutions.