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Test sieves for the air jet sieve machine

A wide range of sieves for the three models of NEXOPART air jet sieve machines.
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Test sieves for the air jet sieve machine

Precise test sieves

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Test sieve, A200 LS
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Test sieve, 200 LS-N
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Micro test sieve with frame made from stainless steel
NEXOPART Mikro sieves for the air jet sieve machines
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Test sieve, e200 LS
NEXOPART Air jet sieve e200 LS
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Special test sieves for use on the air jet sieve machine

Test sieves are indispensable tools in particle size analysis. In conjunction with air jet sieve machines, they enable fast, precise and reproducible separation of fine and agglomerating powder particles. NEXOPART offers perfectly cut test sieves according to the DIN ISO 3310-1 and ASTM E11 standards with mesh sizes from 20 μm to 4 mm for the air jet sieve machines, especially for the NEXOPART models e200 LS, A200 LS and 200 LS-N. This form of test sieves is therefore a valuable tool for laboratory staff to significantly increase accuracy in quality controls and research work on the finest powders.

Comparison of test sieves for the air jet sieve machine and classic test sieves

Compared to classic test sieves for vibrating sieve shakers, the sieving time with test sieves for the air jet sieve machine is significantly reduced. Analyses that used to take several hours can often be completed in a few minutes. These shortened analysis times enable a higher number of samples per work shift and thus considerable time savings.

NEXOPART Comparison of test sieves | © NEXOPART

Reduced manual effort:

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Cleaning and reworking processes are minimized. This noticeably reduces the workload and leads to economic advantages: More analyses with unchanged staff mean lower unit costs per laboratory test.

Gentle on the material:

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Air jet sieve machines work in a material-friendly manner. Less powder remains in the sieve, which reduces costs for expensive materials and minimizes waste. Improved process control also delivers faster results and allows production processes to be adapted quickly. This avoids faulty batches and thus saves costs for post-processing or disposal.

Special development for fine powders:

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The test sieves specially developed for air jet sieve machines are robust and optimally matched to fine powders. They are subject to lower mechanical loads than the classic test sieves when used with vibrating sieve shakers. This extends their service life and significantly reduces spare parts costs.
Time saving: Analyses are done in minutes instead of hours
NEXOPART Checkmark | © NEXOPART
Cost reduction: Less manpower, less material loss, lower spare parts costs
Productivity: More samples per day allows for better laboratory utilization
NEXOPART Checkmark | © NEXOPART
Quality: Faster process controls prevent costly errors and faulty batches

Features of test sieves for air jet sieve machines

Test sieves for air jet sieve machines are significantly flatter compared to conventional laboratory test sieves and have a maximum frame height of 25 to 28 millimeters. This makes them ideal for inlet into air jet sieve machines. For the 200 LS model, NEXOPART offers test sieves with a diameter of 200 millimeters and a height of 25 millimeters. The test sieves for the e200 LS and 200 LS-N machine models are available with a diameter of 203 millimeters and a height of 28 millimeters.

For the fine separation of powders with mesh sizes between 10 and 25 micrometers, micro sieves in the size 76.2 x 25 millimeters are the best choice. The small sieves are usually securely placed on the air jet sieve machine by means of an adapter ring. A suitable cover is also available to create a necessary vacuum in the sieving chamber of the air jet sieve machine.

The test sieves for the air jet sieve machine are completely sealed and evenly covered with high-quality wire mesh from the manufacturer HAVER & BOECKER. A sturdy stainless steel frame with serial number and precisely crafted edges guarantees the highest quality "Made in Germany".

 

Accessories for test sieves of the air jet sieve machine

NEXOPART offers a wide range of accessories for laboratory work with test sieves for the air jet sieve machine. The specially developed sieve cover reliably generates the required vacuum in the sieving chamber of the machine. Different sieve sizes can be used on the air jet sieve machine with the help of an adapter ring. For gentle cleaning of the test sieve, a matching brush is included in the range. In addition, sealing rings are available to ensure an airtight connection between the test sieve and the air jet sieve machine.

Acrylic glass cover for „200 LS-N“ / „e200 LS test sieve

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Adapter for test sieves Ø 200 mm "Japan Industrial Standard (JIS)"

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Brush

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O-Ring, D4 650 mm

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Your advantages at NEXOPART:

NEXOPART Mesh sizes 5 µm - 125 mm | © NEXOPART
Precise sieving down to the micron range: Perfect for fine powders that are difficult to separate with classic screening methods
NEXOPART Proved | © NEXOPART
Durable materials: High-quality stainless steel mesh for long service life
NEXOPART Checkmark | © NEXOPART
Compatibility: Suitable for common air jet sieve machines from various manufacturers
Easy cleaning: Hygienic and fast for everyday laboratory use
NEXOPART mirco sieve | © NEXOPART

Efficient air jet sieves with electroformed sheet

The electroformed sheet is an important material for test sieves, such as when used on the air jet sieve machine, and complements the conventional wire mesh. It is made of corrosion-resistant and dimensionally stable nickel instead of stainless steel. The production is carried out by mechanical punching, electroforming and subsequent laser processing. In the range of about 5 μm, the electroformed sheet in form of a micro sieve with a diameter of 76.2 mm on the air jet sieve machine offers a particularly precise and uniform mesh structure without wire overlaps. This enables the reliable separation of the finest and agglomerating powders such as metal powder, limestone or silicon carbide. Their advantage is in the avoidance of sieve blockages, which leads to faster analysis times, as well as in a significantly higher accuracy in particle size determination of very fine powders. Tests show that the sieve mesh made of electroformed sheet is not destroyed even with the highest negative pressure.

Features of electroformed sheet:

  • Standards: ISO 3310-3, ASTM E161
  • Mesh sizes: 5 μm - 500 μm
  • Diameter: 76.2 mm - 200 mm

Discover the right microsieve in the shop here.

FAQ about test sieves for air jet sieve machines

Why does the air jet sieve machines have special test sieves?

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The design of the air jet sieve machines and its operating principle with air flow require special test sieves. These are flat in design and have reinforced frames to withstand the negative pressure. In addition, a matching sealing ring is available to ensure an airtight connection to the machine. The test sieves have standardized mesh sizes, according to ISO 3310 or ASTM E11, to enable precise particle size analysis. Classic test sieves are often not designed for the stress caused by negative pressure and air flow. The combination of air jet and rotating slotted nozzle dissolves the finest powder particles. Therefore, the sieve bottom must be smooth to avoid adhesion and must be made of easy-to-clean materials, such as stainless steel.

Why should you rely on high-quality test sieves?

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The quality of the sieves determines the accuracy of the analysis. With precisely manufactured test sieves, reliable results are guaranteed. Low quality test sieves lead to incorrect particle size distributions and increase the risk of production errors. In addition, high-quality materials such as stainless steel mesh ensure a long service life. More samples can be analyzed per day, resulting in better laboratory utilization and faster process controls. This prevents expensive faulty batches and saves time.

Which air jet sieve machines are compatible with the NEXOPART test sieves?

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In addition to the NEXOPART e200 LS air jet sieve machine, the common models such as the 200 LS and 200 LS-N from Hosokawa Alpine as well as other brands are compatible. With a suitable adapter ring, the NEXOPART test sieves can be used on almost any air jet sieve machine.

How to clean and maintain test sieves for air jet sieve machines?

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After each analysis, the test sieves should be carefully cleaned with a brush. Aggressive chemicals should be avoided for this purpose. The e200 LS air jet sieve machine from NEXOPART facilitates this cleaning with an integrated sieve cleaning function. To do this, place the test sieve upside down into the machine, start the sieving process and brush over the sieve bottom. In this way, all particles are dissolved and the falling material is safely extracted without getting into the environment. This function is particularly important when handling materials that are hazardous to health. A regular visual inspection is also recommended.

What are test sieves used for in the air jet sieve machines?

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Test sieves for air jet sieve machines are used to analyze the fineness of powders qualitatively and quantitatively. They have applications in various industries, including: chemistry, pharmaceuticals, food, building materials, metal powders for additive manufacturing.

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