Introducing the Quick Open Series: Immerse yourself in the pinnacle of engineering sophistication with our multi-bag filter housings, featuring a state-of-the-art, self-balancing V-clamp locking mechanism. This series represents a revolutionary leap in design, delivering unparalleled convenience with its effortless one-handed operation. Perfectly designed for high-flow applications, it stands as the ultimate choice for those who desire efficiency seamlessly blended with user-friendliness. Meticulously engineered for scenarios requiring frequent replacements, this advanced system is an engineering marvel crafted to drastically reduce downtime. By optimizing functionality, it significantly lowers operating costs, ensuring a seamless and uninterrupted batch processing experience. Experience the perfect harmony of efficiency and cost-effectiveness, securing flawless operations at all times.
Revolutionizing safety and efficiency, our fully interlocked pressure release mechanism delivers unwavering peace of mind in every situation. The robust, corrosion-resistant V-clamp construction, enhanced by a unique screw-drive mechanism, assures years of consistent service, cementing its status as an indispensable tool for the discerning user.
Elevate your filtration experience with our diverse array of precise and durable filter-bag materials, each meticulously crafted to meet specific requirements:
PP (Polypropylene): Perfectly rated at 1-200µm, this versatile material endures temperatures up to 70°C, showcasing adaptability across a wide range of settings and applications.
PE (Polyester): This resilient material offers a spectrum of 1-200µm and withstands temperatures up to 120°C, making it ideal for the most demanding and rigorous applications.
Nylon: Displaying an impressive range of 25-800µm, with a remarkable high-temperature tolerance of up to 150°C, this material is designed for the most challenging and strenuous environments.
Discover the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, a masterpiece of outstanding excellence and precision engineering. Explore our Filter-Bag Numbers alongside 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 extensive selection addresses a wide range of filtration needs, providing bespoke solutions for every requirement.
The multi bag filter system is a marvel of modern engineering, designed to perfect the filtration process with outstanding precision. With an inlet thoughtfully positioned below the filter bags, this system gracefully welcomes the filter medium, directing it upward into the housing's upper chamber. From there, it guides the medium downward with absolute precision, meticulously filtering through the bags. This sophisticated technique adeptly captures impurities, leaving behind only the purest filtrate to exit with unparalleled elegance and efficiency. Experience the pinnacle of pristine filtration with our cutting-edge design.
To maintain peak filtration performance, careful monitoring of the filter bags is essential. As impurities gather and form compact filter cakes, the differential pressure will reach 0.14-0.17 MPa, indicating the need for bag replacement. During this critical maintenance period, ensure the system is properly shut down, the pressure relief valve is opened with care, and the filter cover is removed gently. Once new bags are installed, the system is prepared to resume its impeccable operation. Our filter bags, crafted for sustainability, can be cleaned and reused, yet they should be replaced if significantly compromised to ensure consistent performance and reliability. This maintenance cycle is crucial for maintaining efficiency and prolonging the operational life of your filtration systems.
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 state-of-the-art multi-bag filter system is equipped with a swift-opening flange ring, expertly secured with bolt fastening. This design guarantees unwavering pressure resistance and unwavering performance reliability. The integrated booster spring mechanism ensures seamless and effortless operation, making it the ultimate choice for frequent filter bag changes. Enjoy dramatically reduced downtime, extraordinary productivity enhancements, minimized worker exertion, and overall operational efficiency with this intelligently crafted system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Presenting our revolutionary spring-balance mechanism that facilitates effortless and labor-saving operation of the upper cover, smoothly adjustable from 0 to 105° as desired. This robust yet simple support structure, complemented by an elegant clamshell design, guarantees no spillage when the lid is opened, optimizing space utilization and streamlining your operational workflow to perfection.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our pioneering compression spring pressure component delivers a flawless 360° seal with the filter bag, completely preventing side leakage. The enhanced filter bag is designed to robustly support the flower plate, withstanding higher pressure while reducing pressure loss, thereby enhancing filtration performance. With a variety of customization options, we offer customer flow configurations ranging from 2 to 24 bags, meticulously tailored to your precise requirements.
Experience smooth and effortless filter bag changes with our advanced spring locking device, enabling quick and efficient maintenance.
Our basket gasket is meticulously engineered for absolute leakage prevention, ensuring unmatched reliability and performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a wide range of customizable options for inlet and outlet directions, offering precise alignment with your installation needs and user preferences. The adaptable flange diameter, adjustable from DN25 to DN250, ensures seamless integration with your existing system, delivering unparalleled adaptability and precision.
Our expertly engineered bag filters are an embodiment of precision engineering, meticulously crafted to achieve the impeccable extraction of even the tiniest trace impurities from liquids. These essential filters are the backbone of numerous industries, offering unmatched precision and steadfast reliability.
- Refined Chemicals Sector: Uncompromising Filtration Solutions. Paint and Ink Filtration Excellence: Ensuring Vibrant and Flawless Results.
- Oil & Gas Sector Innovations: Redefining Filtration Standards. Providing robust solutions for intricate challenges in produced water filtration and the purification of well injection water, ensuring optimal performance.
- Food & Beverage Industry Solutions: Purity and Safety You Can Trust. Offering expert filtration tailored for the purity of beer and wine production, juice concentrate clarification, and ensuring the immaculate processing of soft drinks and bottled water.
- Automotive Manufacturing Precision: Excellence in Filtration. Delivers enhanced performance in automotive spray coating pretreatment and electrophoretic paint processing, ensuring superior finish and primer filtration. Our solutions guarantee impeccable filtration for parts cleaning fluids.
- Pulp & Paper Industry Applications: Advanced Filtration for Unique Demands. Providing advanced coating filtration solutions specifically designed to meet the distinctive requirements of the pulp and paper industry.
- Machining Industry Efficiency: Elevating Performance with Superior Filtration. Delivering superior filtration to elevate the efficiency of machine tool coolant circulation, cleaning fluids, and the management of hydraulic and lubricating oils, ensuring smooth operations.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and expertise in the ever-evolving world of industrial precision filtration and self-cleaning filtration solutions. With an impressive legacy that spans 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 encompass comprehensive, turnkey filtration solutions crafted meticulously to satisfy the diverse and discerning demands of our esteemed clientele, ensuring reliability and exceptional performance.
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, establishing new benchmarks in the filtration industry.
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, solidifying SLOT's reputation as a leader in industrial filtration solutions.
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, offering solutions that not only meet but exceed expectations, ensuring success and satisfaction.

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 significant mark across North America, accounting for 40% of our business, Western Europe holding 30%, with South Asia, Africa, and the Middle East each contributing 10%.
Our dynamic team, consisting of 11 to 50 dedicated professionals, is fervently committed to delivering excellence at every step, ensuring that we exceed industry standards and client expectations with every project.
2. How can we guarantee quality?
Our promise is firm: quality without compromise. We validate standards by providing a sample before initiating full production to ensure everything is flawlessly aligned, delivering exceptional quality every time.
Each shipment undergoes detailed inspections, ensuring our high-quality standards and unwavering consistency are met with impeccable precision.
3. What can you buy from us?
Discover our wide-ranging assortment of meticulously crafted products, such as the precision-manufactured 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, ensuring reliability and longevity.
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, ensuring you receive personalized service and solutions.
2. Our skilled team is proficient in bespoke design and development, turning your concepts into reality through custom drawings that match your vision and requirements.
3. With a cutting-edge R&D team, we are dedicated to providing advanced and innovative solutions, consistently setting new benchmarks in the industry and leading the way with pioneering technology.
5. What services can we provide?
We provide flexible delivery solutions including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES, accommodating your logistics needs perfectly.
Our wide acceptance of payment currencies includes USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF; ensuring a smooth transaction experience, no matter your location.
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 and flexibility.
Communicate with us effortlessly in a variety of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian, breaking down language barriers for smooth interaction.
Aspiring to become an agent in your local market? Reach out to us, and let's explore exhilarating opportunities together, expanding our reach and enhancing our global footprint.