Introducing the Quick Open Series: Discover the pinnacle of engineering brilliance with our state-of-the-art multi-bag filter housings. These innovative systems feature a cutting-edge self-balancing V-clamp locking mechanism, representing a groundbreaking advancement in design. Experience unparalleled convenience with effortless single-handed operation. Expertly crafted for high-flow applications, this series stands as the ultimate choice for those seeking maximum efficiency and user-friendliness. Meticulously crafted for circumstances requiring frequent replacements, this sophisticated system exemplifies engineering excellence, designed to drastically reduce downtime. By optimizing operational functionality, it considerably cuts down operating costs, ensuring a seamless and uninterrupted batch processing experience. Indulge in the perfect harmony of efficiency and cost-effectiveness, ensuring your operations are conducted flawlessly.
Redefining safety and efficiency, our fully interlocked pressure release mechanism provides steadfast peace of mind in every situation. The robust, corrosion-resistant V-clamp construction, enhanced by a unique screw-drive mechanism, guarantees years of reliable service, establishing itself as an essential tool for discerning users seeking long-lasting performance.
Enhance your filtration experience with our diverse selection of precise and resilient filter-bag materials, each masterfully crafted to meet specific requirements:
PP (Polypropylene): Perfectly rated at 1-200µm, this versatile material withstands temperatures up to 70°C, proving adaptable across a wide array of settings and applications.
PE (Polyester): This strong material offers a wide range of 1-200µm and can endure temperatures up to 120°C, making it ideal for the most rigorous and demanding applications.
Nylon: Showcasing an impressive range of 25-800µm, with an exceptional high-temperature tolerance of up to 150°C, this material is tailored for the most challenging and strenuous environments.
Uncover the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, a paragon of excellence and precise engineering, designed to exceed expectations. Explore our Filter-Bag Numbers along with their Detailed Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Measures at 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: With dimensions of 102mmD x 380mmL, our diverse selection addresses a vast range of filtration needs, providing tailor-made solutions for every requirement.
The multi bag filter system is an epitome of precision engineering, crafted with meticulous attention to detail to revolutionize the filtration process with exceptional accuracy. Featuring an inlet strategically positioned below the filter bags, the system gracefully welcomes the filter medium, guiding it with seamless fluidity upwards into the housing's upper chamber. From there, the system orchestrates a meticulously precise downward path, expertly navigating through the filter bags. This sophisticated methodology ensures impurities are skillfully captured, resulting in only the purest filtrate exiting the system with remarkable grace and efficiency. Experience the zenith of immaculate filtration with our cutting-edge design.
To maintain peak filtration performance, diligent monitoring of the filter bags is essential. As impurities gather and form compact filter cakes, causing a differential pressure of 0.14-0.17 MPa, it becomes evident that bag replacement is necessary. During this crucial maintenance phase, ensure the system is systematically shut down, the pressure relief valve is carefully opened, and the filter cover is gently removed. Once new bags are installed, the system is prepared to resume its impeccable operation. Our filter bags are designed with sustainability in mind, allowing for cleaning and reuse, though they should be replaced if substantially compromised to sustain consistent performance and reliability. This maintenance cycle is paramount for ensuring efficiency and extending the operational lifespan in your filtration tasks.
Exquisite Details of Multi-bag Filter Housing



FACTORY DISPLAY
mm |
3 bags |
4 bags |
6 bags |
8 bags |
mm |
12 bags |
17 bags |
23 bags |
A |
1420 |
1342 |
1495 |
1468 |
A |
1612 |
1640 |
1700 |
B |
400 |
450 |
520 |
600 |
B |
680 |
750 |
820 |
C |
520 |
527 |
450 |
528 |
C |
528 |
450 |
535 |
D |
250 |
225 |
300 |
200 |
D |
220 |
250 |
250 |
E |
500 |
550 |
600 |
750 |
E |
950 |
1050 |
1200 |
F |
1806 |
1781 |
1917 |
2029 |
F |
2256 |
2421 |
2586 |
G |
475 |
525 |
580 |
735 |
G |
930 |
1040 |
1195 |
N1 |
DN80 |
DN100 |
DN150 |
DN150 |
N1 |
DN200 |
DN250 |
DN250 |
N2 |
DN80 |
DN100 |
DN150 |
DN150 |
N2 |
DN200 |
DN250 |
DN250 |
H |
φ18 |
φ18 |
φ18 |
φ18 |
H |
φ24 |
φ24 |
φ24 |
1. BOLT FASTENING - UNWAVERING PRESSURE RESISTANCE
Our innovative multi-bag filter system showcases an advanced quick-opening flange ring, expertly secured through bolt fastening that promises extraordinary pressure resistance. This leads to unmatched confidence in its robust and reliable performance. The integrated booster spring mechanism ensures seamless and smooth operation, making it the ideal choice for those frequent filter bag swaps. Revel in notably reduced downtime, outstanding productivity enhancements, minimized worker exertion, and an overall boost in operational efficiency, all courtesy of our strategically engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Presenting an ingenious spring-balance mechanism designed for effortless and labor-efficient handling of the upper cover, which can be smoothly adjusted from 0 to 105° as required. This robust yet straightforward support structure, paired with an elegant clamshell design, ensures no liquid spillage when the lid is opened, optimizing space usage and streamlining your operational workflow.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our state-of-the-art compression spring pressure piece provides a flawless 360° seal with the filter bag, entirely eliminating any risk of side leakage. The fortified filter bag is engineered to support the resilient flower plate, withstanding higher pressure while reducing pressure loss, thereby enhancing filtration performance. With a variety of customization options, we offer customer flow configurations that range from 2 to 24 bags, meticulously tailored to meet your specific requirements.
Embrace seamless and effortless filter bag changes with our cutting-edge spring locking device, designed for maximum convenience.
Our basket gasket is meticulously engineered for absolute leakage prevention, ensuring consistent and reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a comprehensive range of customizable options for inlet and outlet directions, allowing precise alignment with your installation needs and user preferences. The versatile flange diameter, adjustable from DN25 to DN250, ensures flawless integration with your existing system, offering unrivaled adaptability and convenience.
Our expertly engineered bag filters epitomize the pinnacle of precision engineering, designed with meticulous attention to detail to capture even the finest trace impurities from liquids effortlessly. These essential filters form the backbone of countless industries, offering unmatched precision and steadfast reliability in every use.
- Refined Chemicals Sector. Paint and Ink Filtration Excellence.
- Oil & Gas Sector Innovations. Providing steadfast solutions for the intricate challenges of produced water filtration and the purification of well injection water, ensuring seamless operations.
- Food & Beverage Industry Solutions. Offering specialized filtration that is expertly tailored for beer and wine production, with juice concentrate clarification, guaranteeing the pristine processing of soft drinks and bottled water, preserving their purity and taste.
- Automotive Manufacturing Precision. Delivers superior performance in automotive spray coating pretreatment, electrophoretic paint processing, and providing an unmatched finish and primer filtration. Our advanced solutions also ensure impeccable filtration for all parts cleaning fluids.
- Pulp & Paper Industry Applications. Providing cutting-edge coating filtration solutions specifically designed to meet the unique and demanding requirements of the pulp and paper industry.
- Machining Industry Efficiency. Delivering unparalleled filtration to boost the efficiency of machine tool coolant circulation, cleaning fluids, and providing superior management of hydraulic and lubricating oils, ensuring smooth and uninterrupted operations.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and expertise in the ever-evolving realm of industrial precision filtration and self-cleaning filtration solutions. With an impressive legacy spanning over a decade, our company showcases unparalleled prowess in design and research & development. By harnessing cutting-edge filtration technology, we present a vast array of premium product resources. Our offerings are comprehensive, turnkey filtration solutions crafted to meet the diverse and discerning demands of our esteemed clientele.
SLOT is proud to uphold the prestigious ISO9001 quality management system certification and has garnered recognition from SGS, underscoring our unwavering dedication to excellence. We rigorously adhere to international standards and specific industry regulations, meticulously customizing our product designs and manufacturing processes to meet each client's unique specifications. Our passion is focused on producing filtration equipment and components that epitomize outstanding performance and superior quality.
Our SLOT automatic self-cleaning filter systems are the preferred choice across a vast array of industries. These include petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged strong and enduring partnerships with a multitude of esteemed industrial enterprises both within our nation and on the international stage.
Renowned for our exceptional product filter performance, state-of-the-art manufacturing capabilities, and dedicated professional services, SLOT is synonymous with excellence. For those in pursuit of superior filter system performance, uncompromised quality, and distinguished service, SLOT stands as your trusted partner for the long term.

Quality Management
FAQ
1. Who are we?
Established in 2014 in the vibrant region of Hebei, China, we are Hebei Slot Filter Technology Co., Ltd. As pioneers of innovation, our groundbreaking solutions have made a mark across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dynamic team, consisting of 11 to 50 dedicated professionals, is fervently committed to delivering excellence at every step.
2. How can we guarantee quality?
Our promise is firm-quality without compromise. We validate standards by providing a sample before initiating full production, ensuring everything is flawlessly aligned.
Each shipment undergoes meticulous inspections, guaranteeing our high-quality standards and unwavering consistency are met impeccably.
3. What can you buy from us?
Discover our wide-ranging assortment of meticulously crafted products, such as the precision-engineered Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, state-of-the-art Pipe-based screens, strong Perforated Pipes, and superior API/5CT Casing and Tubing. Each product is engineered to perform beyond expectations.
4. Why should you buy from us, not from other suppliers?
1. We deliver a comprehensive suite of OEM & ODM solutions, tailoring products to fit your distinctive needs seamlessly.
2. Our skilled team is proficient in bespoke design and development, turning your concepts into reality through custom drawings.
3. With a cutting-edge R&D team, we are dedicated to providing advanced and innovative solutions, setting new benchmarks in the industry.
5. What services can we provide?
We provide a plethora of flexible delivery solutions including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our wide acceptance of payment currencies includes USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF; ensuring a smooth transaction experience.
For your ease, we support a multitude of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow; offering you the utmost convenience.
Communicate with us effortlessly in a variety of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Aspiring to become an agent in your local market? Reach out to us, and let's explore exhilarating opportunities together.