Introducing the Quick Open series of multi-bag filter housings, which boast a cutting-edge self-balancing V-clamp locking mechanism. This innovative design marks a significant departure from traditional models, offering unparalleled ease and simplicity. With an intuitive, single-handed and user-friendly operation, this feature is perfectly suited for applications that demand high flow rates and necessitate frequent element change-outs.
Experience minimal downtime and reduced operating costs, as this system ensures seamless batch processes, streamlining your operations with efficiency and precision.
Efficiency reaches new heights with a fully-interlocked pressure release system that guarantees safety under all conditions, complemented by a robust, corrosion-free V-clamp and an exclusive screw-drive mechanism. This durable housing promises users a long-lasting service life, delivering reliability and peace of mind.
Enhance your filtration experience with our wide array of meticulously engineered filter-bag materials, each crafted to meet specific demands with precision and durability:
PP (Polypropylene): Offering adaptability with a rating of 1-200µm, this robust material withstands temperatures up to 70°C. It is versatile, accommodating a multitude of settings and applications.
PE (Polyester): This strong and durable material covers a broad range of 1-200µm and can withstand temperatures reaching an impressive 120°C, ideal for the most rigorous and demanding applications.
Nylon: With an impressive range of 25-800µm and exceptional high-temperature resistance up to 150°C, this material is precisely engineered for the most challenging and strenuous environments.
Uncover the state-of-the-art capabilities of our Stainless Steel Multi-bag Filter Machine, a testament to excellence and precision engineering, setting new standards in the industry. Delve into our Filter-Bag Numbers and their Detailed Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Dimensions are 180mmD x 810mmL; 3#: Dimensions are 102mmD x 210mmL; 4#: Dimensions are 102mmD x 380mmL. Our diverse selection is crafted to meet an extensive range of filtration requirements, providing tailored solutions for every need and ensuring optimal performance.

The multi bag filter system showcases the pinnacle of modern engineering, expertly crafted to transform the filtration process with extraordinary precision. Utilizing a thoughtfully placed inlet below the filter bags, the system expertly ushers the filter medium upwards into the upper chamber of the housing. From there, it elegantly channels the flow downward with remarkable precision, seamlessly guiding it through the filter bags. This intricate process efficiently captures impurities, delivering the purest filtrate with unmatched elegance and effectiveness. Embark on a journey to optimal filtration with our state-of-the-art design.
To uphold peak filtration performance, vigilant monitoring of the filter bags is vital. As impurities accumulate, forming dense filter cakes and causing a differential pressure of 0.14-0.17 MPa, it becomes clear that replacing the bags is essential. During this pivotal maintenance phase, ensure the system is meticulously shut down, the pressure relief valve is gently opened, and the filter cover is smoothly removed. Once new bags are installed, the system is poised to resume its exceptional operation. Our filter bags, crafted with eco-friendliness in mind, can be cleaned and reused, but should be replaced if significantly compromised to maintain reliable performance and dependability. This maintenance cycle is crucial for efficiency and prolonged operational lifespan in your filtration endeavors.
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
Embrace the unmatched reliability of our cutting-edge multi-bag filter system, featuring a quick-opening flange ring expertly fortified with robust bolt fastening. It stands as a testament to unwavering pressure resistance and impeccable performance. The innovative booster spring mechanism simplifies operation like never before, streamlining frequent filter bag changes. Revel in the significant reductions in downtime, remarkable boosts in productivity, decreased worker fatigue, and exceptional operational efficiency, all thanks to this ingeniously designed system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveil the ingenuity of our state-of-the-art spring-balance mechanism, designed to offer smooth and effortless maneuverability of the upper cover. With seamless adjustability ranging from 0 to 105°, this sophisticated clamshell design guarantees zero liquid spills upon opening. Maximize spatial efficiency and streamline your workflow with this ingenious structure, optimizing every inch of your operational space to its fullest potential.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece ensures a perfect 360° seal with the filter bag, eradicating side leakage completely. The reinforced filter bag stands resiliently with the robust flower plate, adept at handling higher pressures while minimizing pressure loss and heightening filtration results. We offer expansive customization options, providing customer flow configurations from 2 to 24 bags, meticulously tailored to your exact requirements.
Experience seamless and efficient filter bag changes with our innovative spring locking device, ensuring a smooth and streamlined workflow every time.
Our basket gasket is expertly designed to provide absolute protection against leakage, ensuring consistent and reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Explore our extensive range of customizable inlet and outlet direction options, meticulously crafted to align perfectly with your installation specifications and user preferences. With a versatile flange diameter adjustable from DN25 to DN250, this design ensures flawless integration with your current system, offering you unparalleled adaptability and flexibility.
Our expertly engineered bag filters represent the pinnacle of precision engineering. Crafted with meticulous attention to detail, they efficiently extract even the most minuscule trace impurities from liquids. These indispensable filters serve as the cornerstone across a vast spectrum of industries, offering unmatched precision and reliability that remains steadfast.
- Refined Chemicals Sector: Unleashing the full potential of high-precision filtration to elevate the quality and purity of chemical products, ensuring your processes achieve the highest standards. Paint and Ink Filtration Excellence: Ensuring vibrant colors and flawless finishes, our filters set the benchmark in paint and ink filtration, bringing your creative visions to life with a touch of perfection.
- Oil & Gas Sector Innovations: Leading the frontier with cutting-edge filtration solutions that enhance efficiency and safety in the oil and gas sector, paving the way for a safer, more productive future. Providing reliable solutions for the intricate challenges of produced water filtration and well injection water purification, ensuring optimal performance and steadfast environmental compliance.
- Food & Beverage Industry Solutions: Elevating quality and safety with tailored filtration solutions, perfectly crafted for the diverse needs of food and beverage processing, ensuring premium standards are met. Offering expert filtration precisely tailored for beer and wine production, juice concentrate clarification, and pristine processing of soft drinks and bottled water, maintaining the highest levels of quality and taste.
- Automotive Manufacturing Precision: Driving excellence with advanced filtration solutions for spray coating pretreatment, electrophoretic paint processing, and ensuring a superior finish and primer filtration for ultimate quality. Delivers enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. Our solutions also ensure impeccable filtration for parts cleaning fluids, optimizing performance and precision in every application with unmatched efficiency.
- Pulp & Paper Industry Applications: Delivering advanced coating filtration solutions specifically designed for the unique and demanding needs of the pulp and paper industry, ensuring smooth and flawless production processes. Providing advanced coating filtration solutions tailored to the unique challenges of the pulp and paper industry, ensuring smooth, flawless, and efficient production processes.
- Machining Industry Efficiency: Leading the charge in enhancing tool performance and longevity through the revolutionary application of superior filtration technology. Delivering superior filtration solutions to dramatically enhance the efficiency and performance of machine tool coolant circulation, cleaning fluids, and the effective management of hydraulic and lubricating oils, boosting overall machining productivity and precision.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. is a luminary in the dynamic realm of industrial precision filtration and self-cleaning filtration solutions. With over a decade of illustrious history, our company epitomizes exceptional expertise in design and research & development. Embracing advanced filtration technology, we offer a vast array of high-quality product resources. Our all-encompassing solutions deliver turnkey filtration systems that satisfy the diverse and sophisticated requirements of our valued clients.
At SLOT, we proudly uphold the esteemed ISO9001 quality management system certification and have garnered commendation from SGS, underscoring our steadfast commitment to excellence. We meticulously adhere to international standards and specific industry regulations, custom-crafting our product designs and manufacturing processes to meet each client's unique specifications. Our dedication is channeled into producing filtration equipment and components that embody remarkable performance and unparalleled quality.
Our SLOT automatic self-cleaning filter systems are the premier choice across a diverse range of industries, including petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have established robust and lasting alliances with numerous prestigious industrial enterprises, both domestically and globally.
Celebrated for our outstanding product filter performance, cutting-edge manufacturing capabilities, and committed professional services, SLOT is synonymous with excellence. For those in search of top-tier filter system performance, impeccable quality, and exemplary service, SLOT is your dedicated partner for enduring success.

Quality Management
FAQ
1. Who are we?
Founded in the dynamic heart of Hebei, China, in 2014, we are Hebei Slot Filter Technology Co., Ltd., a name synonymous with cutting-edge innovation. Our pioneering solutions resonate across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our passionate team of 11 to 50 expert professionals is committed to excellence and achieving the extraordinary.
2. How can we guarantee quality?
Our unwavering commitment is to deliver unmatched quality. Before full production, we validate standards with sample evaluations to ensure flawless alignment.
Each shipment undergoes meticulous inspections, upholding our rigorous quality benchmarks and unmatched consistency with impeccable precision.
3. What can you buy from us?
Discover our expansive selection of expertly crafted products like the precision-engineered Johnson Screen, durable Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, cutting-edge Pipe-based screens, robust Perforated Pipes, and premium API/5CT Casing and Tubing. Each product is designed to exceed performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We offer a complete range of OEM & ODM solutions, seamlessly tailoring products to meet your unique requirements.
2. Our expert team excels in custom design and development, transforming your ideas into reality with bespoke drawings.
3. Equipped with an advanced R&D team, we deliver cutting-edge solutions and set new industry standards.
5. What services can we provide?
We offer flexible delivery options including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accept a wide range of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring a seamless transaction process.
For maximum convenience, we support various payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, offering you ultimate ease.
Communicate effortlessly with us in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Dreaming of becoming an agent in your local market? Contact us and explore thrilling opportunities together.