Automatic centrifuge with exhaust filter bag – Manufacturer 

Automatic centrifuge with exhaust filter bag: direct supply from the manufacturer

The industrial equipment market in 2026 requires not just certificates, but proven efficiency of each machine component.Автоматическая центрифуга с вытяжным фильтровальным мешком- this is not a standard solution “from a catalogue,” but a high-precision unit where rotor balancing and the tightness of the unloading system are critically important. We have been producing these machines in our own factory for more than 15 years, and during this time we have realized one thing: 90% of breakdowns of competitive models occur due to savings on bearing units and incorrect calculation of the rotation speed for specific suspensions. In this article we will not use marketing clichés. We will analyze the real technical parameters, risks when purchasing cheap equipment and give clear recommendations on choosing a model for your tasks.

If you are looking for a reliable partner who takes responsibility for the entire life cycle of equipment - from design to service - you have come to the right place. Our production is ISO 9001:2015 certified and each unit undergoes a load test run before shipment. Below we will describe the design in detail, compare our solutions with analogues and answer questions that usually arise among chief engineers of chemical and pharmaceutical production.

Design features and operating principle of automatic unloading

The main difference between our series of centrifuges and outdated models is a fully automated operating cycle without operator intervention. The process begins by loading the suspension through the feed pipe with the drum running or at low speed, depending on the viscosity of the product. This is followed by the separation phase, where the centrifugal force reaches values from 800 to 1200 G (depending on the model), separating the solid phase on the walls of the filter bag. The liquid (centrate) passes through the perforation of the drum and is drained into the collection tank.

The key step is unloading the sediment. In traditional machines, the operator must manually open the lid and scrape out the product, which breaks the seal and poses a risk to personnel. Ourautomatic centrifuge with exhaust filter bagequipped with a hydraulic mechanism for lifting the bottom of the drum (“basket”). After stopping the rotation and washing the sediment (if the technology is provided), a special device smoothly lifts the entire package with the product up above the machine body. This is where the “pulling” mechanism comes into play: a special gripper or conveyor belt carefully removes the filter bag along with the sediment, or the bag is unloaded directly into the storage hopper.

In our practice, there was a case when a client complained about frequent bags breaking when unloading abrasive materials. The analysis showed that the previous supplier's bottom angle was too sharp, creating excessive tension on the fabric. We modified the hydraulic circuit, making the lifting two-stage: fast stroke until contact with the sediment and slow, smooth stroke with pressure control force. This increased the life of the filter elements by 40%. This level of engineering is only available to the manufacturer, who controls every stage of the assembly.

Technical characteristics and choice of model for the task

When choosing a centrifuge, many buyers look only at the drum diameter and engine power. This is a big mistake. To select the equipment correctly, it is necessary to take into account a whole range of parameters that affect the separation efficiency and service life of the machine. Below is a table of the main characteristics of our serial models, which are most in demand in the CIS and European markets.

Pay attention to the “Separation factor” parameter. It directly depends on the diameter and rotation speed. Fine particles (less than 10 microns) require a factor of at least 1000 G, so the PSB-800 may be more efficient for some applications than the larger PSB-1250 operating at lower speeds. The material used is also critically important. If you process aggressive acids or alkalis, standard AISI 304 stainless steel may corrode in the weld areas. In such cases, we recommend a version made of AISI 316L with electropolishing of the inner surface of the drum, which reduces product adhesion and simplifies cleaning with a CIP system.

A common mistake when purchasing is ignoring the drive type. We use variable frequency drives (VFD) in all modern models. This allows the drum to accelerate smoothly, avoiding resonance zones that could destroy the foundation or the machine itself. In addition, the VFD makes it possible to change the operating mode “on the fly” depending on the batch of raw materials. One of our clients in the petrochemical industry was faced with the fact that when the density of the raw material changed, an old direct-start centrifuge constantly knocked out the circuit breakers. Replacing with our VFD model solved the problem in one day, as we were able to programmatically limit the starting current and optimize the acceleration curve.

Security systems and compliance with international standards

Working with rotating machines at high speeds poses serious risks. Ourautomatic centrifuge with exhaust filter bagdesigned in strict accordance with the ATEX directive (for hazardous areas) and GOST 12.2.003-91 standards. Security is ensured by a multi-level system of locks and sensors.

Firstly, the vibration control system. Sensors installed on the machine body continuously monitor the level of vibrations. If the permissible threshold is exceeded (for example, due to uneven sludge loading), the system automatically stops the power supply and brakes the drum. This prevents catastrophic rotor failure. Secondly, the lid lock. The machine will not start unless the safety guard is closed and locked with a mechanical lock with an electrical confirmation signal. Thirdly, control of motor overload and bearing temperature.

For enterprises operating in explosive environments (categories Zone 1, Zone 2), we offer motors and control cabinets marked Ex d IIB T4 or higher. All conductive parts are grounded to remove static electricity that can occur when polymer filter bags rub against metal. Ignoring this requirement led to a fire at one of our partners’ factories in 2024 - a static discharge spark ignited solvent vapors. We have made it mandatory to install antistatic brushes and grounding devices as standard equipment on all machines for the chemical industry.

EAC (Eurasian Conformity) certification is mandatory for work in Russia, Belarus and Kazakhstan. Our machines undergo a full conformity assessment procedure in accredited laboratories. You receive a full package of documents: declaration of conformity TR CU 010/2011 “On the safety of machinery and equipment”, product passport, instruction manual and certificate of origin form ST-1, which allows you to enjoy benefits during customs clearance. The presence of these documents is not a formality, but a guarantee that the equipment is legal and safe.

Expertise in materials: experience of Wuxi Kaisheng LLC

Selecting the right material for a centrifuge is often a critical factor in its longevity, especially in the harsh environments of the oil refining and chemical industries. In this context, our technological alliance with the companyWuxi Kaisheng Electric Power and Petrochemical Equipment Co., Ltd.provides us with unique opportunities. As a specialized manufacturer of high-pressure heat transfer and petrochemical equipment, Wuxi Kaisheng has extensive expertise in complex alloys, which we successfully integrate into the production of our centrifuges.

Thanks to cooperation with Wuxi Kaisheng, we can offer customers custom designs of contact parts made of materials rarely found in mass production: titanium alloys, nickel alloys (such as N06625), copper-nickel compositions and marine brass C46400. Certified to stringent international ASME and PED standards, these materials provide exceptional corrosion resistance and resistance to high temperatures and pressures. For example, for the tasks of desalinating seawater or processing particularly aggressive acids, we use technologies for the manufacture of tube bundles and grids, developed by partners in the production of heat exchangers, adapting them for centrifuge units. This allows us to create equipment that performs where conventional stainless steels fail quickly, providing our customers with process stability under the most severe operating conditions.

Why direct deliveries from the manufacturer are more profitable than purchasing from dealers

The market is saturated with offers from trading companies that position themselves as manufacturers. However, buying through an intermediary carries hidden risks and additional costs. By working directly with us, you get a number of undeniable advantages that affect the total cost of ownership (TCO).

1. No intermediary markups.Dealers typically add 15% to 30% to the factory price. You pay this money for their logistics and margins, but not for improving the quality of the car. A direct contract allows us to offer a more competitive price or include an extended warranty and spare parts in the price.

2. Technical adaptation to your process.The dealer sells what is in stock. The manufacturer can change the design to suit your needs. Do you need a special seal material? Need a larger unloading hatch? Do you need to integrate the machine into your automated process control system line using the Modbus or Profibus protocol? We do this at the production stage. In our practice, there was an order from a pharmaceutical plant, which required the complete absence of “dead zones” inside the drum to validate the cleaning. The standard model was not suitable. We redesigned the bag mounting assembly, removing all internal bolts and making the surface completely smooth. The dealer could never offer such a solution.

3. Warranty and service support.If a car purchased from a reseller breaks down, you will have to wait for a reaction from a third party, who, in turn, will wait for a response from the factory. Direct contact means our engineers can connect to the diagnostic system remotely within 2 hours. Spare parts (filter screens, bearings, belts) are always available in our warehouse. The delivery time for original components is 3-5 days, while waiting through an intermediary can take months.

4. Staff training.We don't just ship a box of hardware. The contract price includes the visit of our specialist to supervise installation and training of your operators. We teach not only how to press buttons, but also how to understand the physics of the process, recognize signs of wear in time and carry out preventive maintenance. This reduces future downtime.

Logistics, production time and terms of cooperation

Production time for standard modelautomatic centrifuge with exhaust filter bagis from 25 to 35 working days from the moment of signing the contract and receiving the advance payment. This period includes machining of parts, welding, assembly, painting and, most importantly, factory testing. We will not ship equipment that has not undergone a 4 hour load test run using water or slurry simulator. A test report with graphs of vibration and current consumption is attached to the passport.

For non-standard projects (special materials, unique dimensions, integration into complex lines), the period can be increased to 45-60 days. Minimum order quantity (MOQ) is 1 unit. We understand that many enterprises require modernization of one site, rather than purchasing an entire fleet of machines. Therefore, we work with single orders on the same terms as with large tenders.

Packing is carried out in wooden boxes processed according to the ISPM 15 standard (for export), which eliminates problems at customs. The inside of the machine is fixed with dampers, and the open areas of the shafts and flanges are preserved with an anti-corrosion compound. Delivery is possible by any type of transport: road, rail or sea (in a container). For models with a diameter of more than 1250 mm, transportation by oversized transport may be required, the calculation of the scheme of which we undertake.

Payment is made by bank transfer. For residents of the Russian Federation and EAEU countries, we work in rubles; USD, EUR or CNY are available for export contracts. We provide flexible conditions: for example, 30% advance payment, 60% before shipment after providing photo/video readiness reports, and 10% after commissioning. This scheme protects the interests of both parties.

Frequently asked questions (FAQ)

What is the service life of a filter bag and how often does it need to be changed?

The service life of the filter element depends on the aggressiveness of the environment, the abrasiveness of the product and the washing mode. On average, polypropylene bags last from 6 to 12 months when working in 2 shifts. Cotton or lavsan fabrics can last longer, up to 18 months, but are more expensive. A sign of the need for replacement is a decrease in the filtration rate even after regeneration or the appearance of micro-fractures that allow the solid phase to pass into the centrate. We recommend keeping at least 2 sets of replacement bags in stock for each machine, so as not to stop production in case of sudden fabric failure. The cost of the bag is less than 1% of the price of the machine, so saving on the quality of the fabric is not practical.

Is it possible to upgrade an old centrifuge to automatic discharge?

This is theoretically possible, but in practice it is often not economically feasible. Modernization requires replacing the housing, installing a new hydraulic station, redoing the foundation and replacing the motor with a frequency-controlled one. The cost of such a conversion often reaches 70-80% of the price of a new car, and you get old metal with fatigue stresses. The exception is rare cases when the case is made of expensive titanium or a special alloy that cannot be quickly remanufactured. In 95% of cases we recommend buying a new oneautomatic centrifuge with exhaust filter bag, as this will provide a full guarantee, modern efficiency and compliance with new safety standards.

What compressed air pressure is required to operate hydraulics?

Our machines are equipped with their own electrically driven hydraulic station, so connection to an external compressed air network for the power section is not required. A pneumatic connection is only required for sludge blowing systems (if provided) or for the operation of pneumatic valves in the control cabinet. The pressure in the pneumatic network should be in the range of 0.4–0.6 MPa. If your production does not have a central pneumatic network, we can install a local low-power compressor as part of a cabinet unit. This simplifies installation and makes the machine a self-contained unit, ready for use immediately after connecting to the mains.

Do you guarantee confidentiality when developing an individual project?

Yes, privacy is a priority. Before discussing technical details, we are ready to sign a non-disclosure agreement (NDA). All design documentation, drawings and specifications developed for your order remain your property and are not used by us for other clients. We understand that the technological regimes and composition of the processed products are a trade secret of the enterprise. Our engineers have experience working with defense and pharmaceutical orders, where the requirements for secrecy are maximum.

Real implementation cases and results

To prove our words with deeds, we will give two examples from our practice over the past year.

Case 1: Pharmaceutical production (Moscow).
Task: Replacement of imported centrifuges of a European brand, the delivery time of which has increased to 12 months, and the cost has increased 3 times. Equipment was required to separate antibiotic crystals. Criteria: sterility, absence of metal impurities, possibility of CIP cleaning.
Solution: We supplied 4 units of the PSB-1000 model in GMP performance (surface Ra< 0.4 µm, polished, special seals). We introduced a system for automatically dispensing bags into a sterile container.
Result: Production started 40 days after order. The sludge moisture content decreased from 12% to 6%, which reduced the cost of subsequent drying by 35%. The full payback of the equipment was 8 months due to savings on energy consumption and reduction in product losses.

Кейс 2: Переработка полимеров (г. Казань).
Задача: Утилизация отходов ПЭТ-бутылок. Суспензия содержала абразивные частицы песка и этикеток. Предыдущие центрифуги выходили из строя каждые 3 месяца из-за износа барабана и вибрации.
Решение: Изготовление центрифуги PSB-1250 с футеровкой внутренних поверхностей карбидом кремния и усиленным ротором. Настроили режим работы с пониженными оборотами, но увеличенным временем цикла.
Результат: Безаварийная работа в течение 14 месяцев (на момент написания статьи). Снижение уровня шума в цеху на 15 дБ благодаря новой системе демпфирования. Клиент отметил, что качество гранулята на выходе улучшилось, так как центрифуга эффективнее отделила воду.

Conclusion and next step

Выбор оборудования для разделения суспензий — это инвестиция в стабильность вашего производства на десятилетия вперед.Автоматическая центрифуга с вытяжным фильтровальным мешкомот прямого производителя — это гарантия качества, прозрачности сделки и технической поддержки. Мы не продаем “черные ящики”; We offer a partnership based on engineering competence and responsibility, backed by the advanced materials and technologies of our strategic partners.

Не рискуйте, покупая кота в мешке у сомнительных посредников. Получите коммерческое предложение с детальным расчетом экономической эффективности именно для вашего случая. Наши инженеры готовы провести видео-конференцию, обсудить вашу технологию и предложить оптимальную конфигурацию машины.

Contact us todayдля получения консультации и расчета стоимости. Укажите в запросе тип продукта, требуемую производительность и желаемую влажность осадка — это ускорит подготовку технико-коммерческого предложения.

Также рекомендуем ознакомиться с нашим разделомКаталог центрифужного оборудования, где представлены подробные спецификации всех моделей и примеры выполненных проектов.