Air jet sieve machine
For the size analysis of the finest bulk materials, the NEXOPART air jet sieve machines are quiet, fast and efficient.
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Air jet sieve machine
The e200 LS air jet sieve machine from NEXOPART for the finest and agglomerating powders in the measuring area from 10 μm - 4 mm
The e200 LS air jet sieve machine is specially designed for the separation, fractionation and grain size determination of fine to very fine powders. Fine powders have a greater tendency to agglomeration. This makes sieve analysis unnecessarily difficult. The advantage of the NEXOPART e200 LS is that when fine powders or oily particles clog the test sieve, it skilfully dissolves the agglomerations. The e200 LS air jet sieve machine is therefore ideal for various industries, including the mineral, chemical and pharmaceutical industries (in compliance with the requirements of 21 CFR Part 11), toner production, food and beverage production as well as the cement and building materials industries. With quiet operation, high speed and efficiency, it delivers accurate measurement results with high reproducibility.
Air jet sieving: The best method for particle analysis of the finest powders
Air jet sieving is a process that effectively separates fine, dry particles with the help of an air stream. The sample material is evenly distributed on a test sieve with fine meshes and closed with a lid. In the sieving chamber of the NEXOPART e200 LS, a rotating slotted nozzle works together with an externally connected industrial vacuum cleaner. With the help of the vacuum cleaner, a vacuum is created in the sieving chamber of the e200 LS, while the narrow gap of the slot nozzle accelerates the air masses that flow through the sieve mesh from below. The air jet keeps the particles moving and agglomerates are broken up. As a result, even very small particles can safely pass through the sieve openings.
Features of the e200 LS air jet sieve machine:
- High reproducibility and comparability
- Automated user guidance 4 software packages: LITE, BASIC, ULTIMATE, SECURITY
- Sample weight up to 30 g
- Negative pressure (Pa): 1500 - 5000
- Voltage: 90 - 264 V, 50/60 Hz
- Dimentions L x W x D: 535 x 370 x 386 mm
- Weight: approx. 17 kg, net
- User-friendly touch display
- Manual sieving, sieving according to SOP (Standard Operation Procedure with 2 GB of storage space)
- Test sieve management
- Automatic sieve identification (RFID)
- 13 languages (EN, DE, FR, ES, IT, CS, JA, PT, RU, TR, ZH, PL, HU)
- Archive for calling up and evaluating the stored sieving processes
- Scale management for external scales, protocols for specific scales Kern, Sartorius, Mettler and Ohaus are stored and can be connected via USB or RS232. Further drivers can be added at any time according to customer-specific requirements.
- Integrated sieve cleaning
- Only suitable for dry sieving
- 100% Made in Germany
The single steps for successful air jet sieving:
1. Sample preparation:
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• The material must be dry and free of coarse impurities.
• The weighing is carried out. The material is measured before sieving
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• The weighing is carried out. The material is measured before sieving
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2. Filling the material:
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• The test sieve is selected according to mesh size depending on the desired separation area and placed in the air jet sieve machine.
• A defined amount of max. 30 g of the powder is placed on the fine sieve.
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• A defined amount of max. 30 g of the powder is placed on the fine sieve.
Find the perfect test sieve from Nexopart here.
3. Start of the air jet sieving process:
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• The time of the sieving process is set (e.g. 1-5 minutes).
• A high-performance industrial vacuum is connected, which creates an air flow or vacuum in the sieving chamber of the machine.
• The airflow creates a vortex motion that loosens the powder and breaks up agglomerates.
• A high-performance industrial vacuum is connected, which creates an air flow or vacuum in the sieving chamber of the machine.
• The airflow creates a vortex motion that loosens the powder and breaks up agglomerates.
4. Sieving process:
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• The particles are moved by the air stream.
• Finer particles pass through the sieve openings and enter the vacuum cleaner bag or a collection container.
• Coarser particles remain on the sieve.
• Finer particles pass through the sieve openings and enter the vacuum cleaner bag or a collection container.
• Coarser particles remain on the sieve.
5. Continuous control:
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• The amount and direction of air can be adjusted to optimize separation.
6. End of the process:
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• The airflow is stopped.
• The sieve is removed and the coarser particles are weighed and/or further processed.
• The fine particles are collected separately.
• The sieve is removed and the coarser particles are weighed and/or further processed.
• The fine particles are collected separately.
7. Evaluation:
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• In particle size analyses, the mass of the fractions is determined.
• In production processes, the particles are used directly.
• In production processes, the particles are used directly.
Advantages and specifications over other test sieve machines:
Very gentle handling of the fine particles: The material is placed on a single fine sieve.
Integrated software with many features: Function expansion through software upgrades possible at any time.
Consistent and accurate results: Consistent negativ pressure control and software management provide comparable data between samples and runs.
Validation options (IQ/OQ, CFR): Especially important in the pharmaceutical/food sector.
Time savings and reduction of operating errors by automatic sieve identification (RFID)
Easy operation due to user-friendly touch display: Ideally suited for laboratories with high sample throughput and documentation-intensive processes.
Integrated sieve cleaning: For efficient and fast processes.
Space-saving: Compact design with display above the machine
Features: Air jet sieve machine vs. vibrating test shakers
The air jet sieve machine differs from vibrating sieve shaker by its operating principle:
- The material is placed on a single fine sieve.
- An air jet, instead of vibration, creates a vacuum in the machine's sieve chamber through an interaction between an industrial vacuum cleaner and a rotating slot nozzle.
- The airflow dissolves agglomerates and keeps the particles moving, making them easier to fall through the sieve openings.
| Air jet sieve machine | Vibrating test shakers | |
| Principle | airflow releases agglomerates and moves particles | mechanical vibrations move the particles |
| Material | dry, fine powders | powders, granules, even coarser materials |
| Measuring range | very fine 10 µm – 4mm | from coarse to medium 20 µm - 125 mm |
| Load on the material | very gentle | mechanical stress |
| Areas of application | pharmaceuticals, chemicals, food, metal powders | building materials, recycling, food, chemicals |
| Design | single test sieve + air nozzle | multiple sieves stacked in a sieve tower + vibration motor |
| Pros | precise, ideal for fine powders | high throughput, versatile for dry and wet sieving |
| Cons | only suitable for dry powders | less suitable for extremely fine powders |
Differences between the four software packages: LITE, BASIC, ULTIMATE UND SECURITY
Whether its demanding tasks with high throughput in the mineral and cement industry or strictly regulated and documentation-intensive processes in pharmaceutical and food production: eControl's four high-performance software packages offer the right solution for every process engineering requirement. Regardless of your personal software choice, the LITE version is always available pre-installed on the devices. However, a software upgrade is possible at any time. All that is provided is a new license key, which can be activated quickly and easily on the device. The NEXOPART team is happy to design an individual software package that is precisely tailored to your requirements.
LITE:
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• USP: Third-party vacuum cleaner can be integrated
• For quick and easy analysis
• Simple one-touch operation
• Graphic user interface
• Display of the underpressure (in Pa), sieving time, date and time
• Manual underpressure control
• For quick and easy analysis
• Simple one-touch operation
• Graphic user interface
• Display of the underpressure (in Pa), sieving time, date and time
• Manual underpressure control
BASIC:
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• Automatic underpressure control
• Fast, simple evaluation of the results, prepared in table form
• Balance communication via RS-232 interface
• Central parameter management of all sieves
• Fast, simple evaluation of the results, prepared in table form
• Balance communication via RS-232 interface
• Central parameter management of all sieves
ULTIMATE:
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• Features of BASIC plus these ones:
• Automatic saving and printing
• Sieve set management (SOP)
• Result evaluation against setpoint specifications (table and graph form)
• Automatic backup
• Individualized level of detail
• Various chart types
• Parameter management for each test sieve
• Automatic saving and printing
• Sieve set management (SOP)
• Result evaluation against setpoint specifications (table and graph form)
• Automatic backup
• Individualized level of detail
• Various chart types
• Parameter management for each test sieve
SECURITY:
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• Features of ULTIMATE and in addition these ones:
• Requirements for software validation as classified in ISPE GAMP 5, FDA 21 Part 11, compliant with EC GMP Annex 11
• User management
• Password management
• Audit trail – user activity monitoring and event logging
• E-signature
• Network connection required
• Requirements for software validation as classified in ISPE GAMP 5, FDA 21 Part 11, compliant with EC GMP Annex 11
• User management
• Password management
• Audit trail – user activity monitoring and event logging
• E-signature
• Network connection required
Areas of application for laboratory analyses
- Pharmaceutical Industry: Validated particle size throughput for microfine active ingredients, excipients by covering 21 CFR Part 11
- Chemistry: Pigments, powders
- Food: Separation of flour-like powders such as cocoa powder, coffee powder, flour, starch, etc.
- Additive Manufacturing: Metal Powder
- Toner production
- Cement and building material applications: Fast and reproducible analyses of grain size in the building materials laboratory.
Accessories for the air jet sieve machine
NEXOPART offers special accessories for sample preparation, cleaning and tools for actual analysis.
FAQ about air jet sieve machine
What is the air jet sieve machine?
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An air jet sieve machine is a special sieving device that is mainly used for the finest powders and dry materials in the measuring range of 10 μm to 4 mm. It differs from classic vibrating sieve shakers in its operating principle: instead of a 3D sieving, it works with an air jet and only a single test sieve.
Which test sieve is best suited for the air jet sieve machine?
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For the air jet sieve machine, test sieves with wire mesh and stainless steel frames in mesh sizes from 20 μm to about 4 mm are usually used, depending on the material and the desired separating grain size. In the measuring range 20 μm – 4 mm, a test sieve with a stainless steel frame and with a diameter of 203 mm is recommended. The use of a test sieve with a diameter of 200 mm is also possible with an additional adapter. For the measuring range 10 μm – 2.5 mm, a test sieve with a stainless steel frame and with a diameter of 76 mm is ideally suited. This can also be placed on the e200 LS with an adapter ring.
What is a pre-separator?
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A pre-separator is a device that is typically installed in front of the actual device, such as an air jet sieve machine. Its main task is to remove coarse particles or foreign substances from the sample material before the analysis of the finer material is carried out.
Why do you need a pre-separator for air jet sieve machine?
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During sieving with the air jet sieve machine, coarse particles or hard agglomerates can damage the fine sieve mesh. The pre-separator prevents this wear and tear. In addition, particles that are too large can get into the air jet sieve, obstructing the air flow and distorting the sieving. By removing coarse components, sieving becomes faster and more even. A pre-separator therefore ensures that only the appropriate grain size enters the process. The D360 pre-separator is available from NEXOPART in the dust classes type M + ATEX, dust class type M + H and dust class type M + H + ATEX. Dust class Type M is designed according to EN 60335-2-69 for the separation of dust with an exposure limit value of greater than 0.1 mg/m3. The dust class type H is intended according to EN 60335-2-69 for the separation of any dust with all exposure limits, including carcinogenic and pathogenic dusts.
What is the high-performance cyclone?
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A high-performance cyclone is a special variant of the cyclone that is used to separate solid particles from particle streams. Typical areas of application can be found in powder preparation, air jet sieve machines or in industrial processes. The central feature of the high-performance cyclone is its outstanding separation efficiency. It is able to reliably remove even very fine particles, often smaller than 10 micrometers, from the air stream. The high-performance cyclone GAZ 120 from NEXOPART is perfectly suited for the safe and clean recovery of the fine particles. There is an almost complete recovery of the sieved material and no contamination by, for example, filter lint. The GAZ 120 is designed for material quantities of up to 1 litre and comes in a dismountable and washable stainless steel version.