The Quick Open series multi-bag filter housings highlight a revolutionary self-balancing V-clamp locking mechanism, setting a new standard beyond traditional designs. This innovation provides unmatched ease with its single-handed, user-friendly operation, making it the quintessential choice for high flow rate applications. Its seamless, one-handed operation is the epitome of convenience, particularly beneficial for high flow rate systems where frequent element replacements are imperative.
This translates to minimal downtime, significantly reducing operating costs and ensuring batch processes are as smooth as silk.
Efficiency reaches new heights with our fully-interlocked pressure release system, guaranteeing unparalleled safety across all conditions. Built with robust strength and resilience, the corrosion-free V-clamp and exclusive screw-drive mechanism assure long-lasting service, providing you with a filtration solution that stands the test of time.
Enhance your filtration performance with our comprehensive selection of precision-engineered, long-lasting filter-bag materials, each designed to meet the meticulous specifications of diverse applications:
PP (Polypropylene): With a versatile rating of 1-200µm, this material is adept at withstanding temperatures up to 70°C, offering incredible adaptability across a broad spectrum of environments and uses.
PE (Polyester): Known for its remarkable durability, it offers a diverse range of 1-200µm and withstands temperatures up to 120°C, making it ideally suited for the most demanding and rigorous applications.
Nylon: With an extensive range of 25-800µm and exceptional high-temperature resistance of up to 150°C, Nylon is crafted for the toughest and most challenging environments, providing superior performance.
Unleash the avant-garde capabilities of our Stainless Steel Multi-bag Filter Machine-a true embodiment of exemplary precision engineering and technological brilliance. Dive into the details of our Filter-Bag Numbers and their Comprehensive Specifications: 1#: Measures 180mmD x 410mmL; 2#: Measures 180mmD x 810mmL; 3#: Measures 102mmD x 210mmL; 4#: Measures 102mmD x 380mmL. Our varied selection caters to a wide array of filtration needs, providing bespoke solutions tailored to every specific requirement.

The multi bag filter system represents the pinnacle of modern engineering, meticulously crafted to transform the filtration process with extraordinary precision. With a thoughtfully positioned inlet beneath the filter bags, the system elegantly guides the filter medium upwards into the housing's upper chamber. From this elevated position, it expertly directs the flow downwards with flawless precision, seamlessly channeling through the filter bags. This sophisticated operation skillfully captures impurities, providing nothing short of the purest filtrate with unmatched elegance and efficiency. Experience the ultimate in pristine filtration with our state-of-the-art design.
To maintain superior filtration performance, diligent monitoring of the filter bags is essential. As impurities accumulate and form dense filter cakes, leading to a differential pressure of 0.14-0.17 MPa, it becomes clear that bag replacement is necessary. During this crucial maintenance phase, ensure the system is carefully shut down, the pressure relief valve is gently opened, and the filter cover is delicately removed. Once fresh bags are installed, the system is prepared to resume its flawless operation. Our eco-friendly filter bags can be cleaned and reused, yet should be replaced if significantly impaired to maintain consistent performance and reliability. This maintenance cycle is vital for efficiency and prolonged operational longevity 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
Introducing our cutting-edge multi-bag filter system, equipped with an advanced quick-opening flange ring that is expertly secured by sturdy bolt fastening. This design delivers unrivaled pressure resistance, ensuring consistent and reliable performance. The innovative booster spring mechanism streamlines operation by allowing for swift and easy filter bag changes, significantly reducing downtime and enhancing productivity. This system not only minimizes worker fatigue but also boosts operational efficiency, reflecting our commitment to delivering meticulously engineered solutions.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Explore the exceptional capabilities of our revolutionary spring-balance mechanism, which facilitates a smooth and effortless operation of the upper cover. With its smooth adjustability from 0 to 105°, the sleek clamshell design ensures no liquid spills during opening. This efficient and space-saving structure maximizes spatial utilization, streamlining your workflow and allowing for optimal use of every inch of your operational space.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our sophisticated compression spring pressure piece guarantees an impeccable 360° seal with the filter bag, effectively preventing side leakage. The reinforced filter bag supports the durable flower plate, capable of enduring higher pressures while minimizing pressure loss, thereby boosting filtration efficiency. With a variety of customization options available, we offer customer flow configurations ranging from 2 to 24 bags, each meticulously engineered to cater to your specific requirements.
Enjoy seamless and effortless filter bag changes with our state-of-the-art spring locking device, ensuring a continuous, smooth workflow that enhances productivity.
Our basket gasket is meticulously crafted to ensure absolute prevention of leakage, delivering consistent and reliable performance that you can trust.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a wide range of customizable inlet and outlet direction options, allowing for precise alignment with your installation specifications and user preferences. The versatile flange diameter, adjustable from DN25 to DN250, ensures seamless integration with your existing system and offers unparalleled adaptability and flexibility, tailored to meet your needs.
Our expertly engineered bag filters are a testament to the pinnacle of precision engineering. Crafted with meticulous attention, they efficiently extract even the most minuscule trace impurities from liquids. These indispensable filters serve as the cornerstone across a spectrum of industries, offering unmatched precision and reliability that never falters.
- Refined Chemicals Sector: Unleashing the full potential of high-precision filtration to elevate the quality and purity of chemical products. Paint and Ink Filtration Excellence: Ensuring vibrant colors and flawless finishes, our filters set the standard in paint and ink filtration.
- Oil & Gas Sector Innovations: Leading the frontier with state-of-the-art filtration solutions that elevate efficiency and safety in the oil and gas sector. Providing reliable solutions for the complex challenges of produced water filtration and well injection water purification, ensuring optimal performance and environmental compliance.
- Food & Beverage Industry Solutions: Elevating quality and safety with tailored filtration for diverse food and beverage processing needs. Offering expert filtration tailored specifically for beer and wine production, juice concentrate clarification, and ensuring pristine processing of soft drinks and bottled water, maintaining exceptional quality and taste.
- Automotive Manufacturing Precision: Driving excellence with enhanced filtration solutions for spray coating pretreatment, electrophoretic paint processing, and ensuring a superior finish and primer filtration. 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.
- Pulp & Paper Industry Applications: Delivering advanced coating filtration solutions designed for the unique and demanding needs of the pulp and paper industry. Providing advanced coating filtration solutions tailored to the unique demands of the pulp and paper industry, ensuring smooth and flawless production processes.
- Machining Industry Efficiency: Leading the way in enhancing tool performance and longevity through superior filtration technology. Delivering superior filtration to 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.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and expertise in the ever-evolving landscape of industrial precision filtration and self-cleaning filtration solutions. With a storied legacy that stretches over a decade, our company is the epitome of mastery in both design and research & development. Harnessing the power of cutting-edge filtration technology, we present an extensive array of high-caliber product offerings. Our sophisticated solutions deliver comprehensive, turnkey filtration systems meticulously crafted to meet the diverse and intricate requirements of our esteemed clients.
At SLOT, we proudly hold the prestigious ISO9001 quality management system certification and have garnered accolades from SGS, reflecting our unwavering commitment to excellence. We adhere stringently to international standards and industry-specific regulations, custom-engineering our product designs and manufacturing protocols to meet each client's unique specifications. We are dedicated to creating filtration equipment and components that exemplify superior performance and unmatched quality.
Our SLOT automatic self-cleaning filter systems are the go-to solution for a myriad of industries, including 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 host of renowned industrial enterprises, both domestically and internationally.
Renowned for our exceptional product filter performance, state-of-the-art manufacturing prowess, and unwavering professional services, SLOT is synonymous with excellence. For those who seek unrivaled filter system performance, pristine quality, and outstanding service, SLOT is your committed partner for long-lasting success.

Quality Management
FAQ
1. Who are we?
Founded in the vibrant and industrious hub of Hebei, China, in 2014, we proudly represent Hebei Slot Filter Technology Co., Ltd., a beacon of cutting-edge innovation. Our trailblazing solutions echo throughout North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dedicated team of 11 to 50 expert professionals is unwaveringly committed to excellence and the pursuit of the extraordinary.
2. How can we guarantee quality?
Our steadfast dedication is to deliver unparalleled quality. Prior to full-scale production, we ensure flawless alignment by validating standards with meticulous sample evaluations.
Each shipment undergoes rigorous inspections, maintaining our stringent quality benchmarks and delivering unmatched consistency with impeccable precision.
3. What can you buy from us?
Explore our extensive range of expertly crafted products, including 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, durable Perforated Pipes, and superior API/5CT Casing and Tubing. Every product is meticulously designed to surpass performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide a comprehensive array of OEM & ODM solutions, precisely tailoring products to meet your distinct requirements.
2. Our skilled team excels in custom design and development, turning your concepts into reality with bespoke drawings.
3. With an advanced R&D team, we deliver cutting-edge solutions that redefine industry standards.
5. What services can we provide?
We offer diverse delivery options including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES, ensuring flexibility and convenience.
We accept a vast range of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, facilitating a seamless transaction process.
For maximum convenience, we support a wide array of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, guaranteeing you ultimate ease of transaction.
Communicate with ease in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Aspiring to be an agent in your local market? Contact us to explore exciting opportunities together.