Introducing the Quick Open series multi-bag filter housings, an innovation that revolutionizes traditional methods with its self-balancing V-clamp locking mechanism-a groundbreaking solution that ensures effortless operation. Its single-handed, user-friendly operation makes these housings an indispensable choice for applications demanding high flow rates and frequent filter changes, ensuring seamless integration into your workflow.
With minimal downtime and reduced operating costs, these filters streamline your batch processes, enhancing operational efficiency and productivity like never before.
Experience enhanced efficiency with our fully-interlocked pressure release system, guaranteeing safety under all conditions, while the robust, corrosion-resistant V-clamp and innovative screw-drive mechanism offer enduring reliability. Crafted for durability, the housing ensures years of service, providing unparalleled performance that meets the demands of rigorous industrial environments.
Transform your filtration processes with our wide array of meticulously crafted filter-bag materials, precision-engineered to address specific filtration challenges:
PP (Polypropylene): Perfectly rated at 1-200µm, this versatile material endures temperatures up to 70°C, making it suitable for diverse applications across various industries.
PE (Polyester): Known for its durability, this material spans a range of 1-200µm and withstands temperatures as high as 120°C, ideal for even the most demanding filtration applications.
Nylon: Boasting an impressive range of 25-800µm, it offers exceptional high-temperature resistance up to 150°C, crafted to tackle the toughest and most challenging environments.
Step into the future with our Stainless Steel Multi-bag Filter Machine, a masterpiece of precision engineering offering unparalleled excellence and reliability. Uncover the specifications of our Filter Bags, each tailored for precision and efficiency: 1#: Dimensions of 180mmD x 410mmL; 2#: Dimensions of 180mmD x 810mmL; 3#: Dimensions of 102mmD x 210mmL; 4#: Dimensions of 102mmD x 380mmL. Our comprehensive selection provides customized solutions for any filtration challenge you may face.

The multi bag filter system is the pinnacle of innovative engineering, meticulously crafted to transform your filtration journey with extraordinary precision. Engineered with a perfectly positioned inlet beneath the filter bags, the system invites the filter medium to ascend graciously into the housing's upper chamber. From this elevated point, it skillfully directs the flow downwards, channeling it through the filter bags with exceptional accuracy. This elegant process expertly captures impurities, ensuring the delivery of the purest filtrate with unmatched grace and efficiency. Discover the ultimate in pristine filtration through our state-of-the-art design.
To maintain outstanding filtration performance, vigilant observation of the filter bags is vital. As impurities accumulate and form dense filter cakes, leading to a differential pressure range of 0.14-0.17 MPa, it becomes clear that replacing the bags is essential. During this critical maintenance phase, ensure the system is carefully shut down, the pressure relief valve is gently opened, and the filter cover is delicately removed. Once new bags are installed, the system is poised to resume its flawless operation. Our eco-friendly filter bags can be cleaned and reused, but should be replaced if significantly impaired to maintain consistent performance and reliability. This maintenance cycle is crucial for achieving efficiency and extending 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
Introducing our state-of-the-art multi-bag filter system, featuring a quick-opening flange ring secured with robust bolt fastening. This design offers exceptional pressure resistance, ensuring unmatched reliability and performance. Our innovative booster spring mechanism makes frequent filter bag changes effortless, drastically reducing downtime and boosting productivity. Experience reduced worker fatigue and significantly enhanced operational efficiency with this meticulously engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Discover our revolutionary spring-balance mechanism, designed for seamless and labor-saving operation of the upper cover. With smooth adjustability from 0 to 105°, it supports a sleek, clamshell design ensuring zero liquid spills. This efficient structure optimizes spatial utilization and streamlines your workflow, maximizing every inch of operational space.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece guarantees a flawless 360° seal with the filter bag, eliminating side leakage. The reinforced filter bag, supported by a durable flower plate, withstands higher pressures with minimal pressure loss, enhancing filtration efficiency. We offer a range of customization options, providing customer flow configurations from 2 to 24 bags, precisely engineered to meet your specific needs.
Experience smooth filter bag changes with our cutting-edge spring locking device, ensuring a seamless workflow.
Our expertly crafted basket gasket guarantees absolute leakage prevention, delivering unwavering performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We offer a diverse suite of customizable inlet and outlet direction options, ensuring perfect alignment with your installation needs. The versatile flange diameter, adjustable from DN25 to DN250, integrates seamlessly with existing systems, offering unparalleled adaptability and flexibility.
Our expertly engineered bag filters exemplify the pinnacle of precision engineering, crafted with meticulous care to efficiently extract even the most minuscule trace impurities from liquids. These indispensable filters form the cornerstone of a vast array of industries, delivering unmatched precision and unwavering reliability.
- Refined Chemicals Sector: Harnessing the full potential of high-precision filtration to significantly enhance the quality and purity of chemical products. Paint and Ink Filtration Excellence: Ensuring vibrant hues and flawless finishes, our filters define the standard in paint and ink filtration.
- Oil & Gas Sector Innovations: Pioneering with state-of-the-art filtration solutions that elevate efficiency and safety within the oil and gas sector. Offering reliable solutions for the intricate challenges of produced water filtration and well injection water purification, ensuring optimal performance and environmental adherence.
- Food & Beverage Industry Solutions: Elevating quality and safety with customized filtration solutions that cater to the diverse processing needs of the food and beverage industry. Providing expert filtration tailored specifically for beer and wine production, juice concentrate clarification, and ensuring pristine processing of soft drinks and bottled water, maintaining unsurpassed quality and taste.
- Automotive Manufacturing Precision: Leading excellence with superior filtration solutions for spray coating pretreatment, electrophoretic paint processing, and ensuring an impeccable finish and primer filtration. Delivers exceptional performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. Our solutions also ensure flawless filtration for parts cleaning fluids, optimizing performance and precision across all applications.
- Pulp & Paper Industry Applications: Offering advanced coating filtration solutions crafted to meet the unique and demanding requirements of the pulp and paper industry. Providing advanced coating filtration solutions tailored to the distinctive demands of the pulp and paper industry, ensuring seamless and flawless production processes.
- Machining Industry Efficiency: Leading advancements in enhancing tool performance and longevity through superior filtration technology. Delivering superior filtration to boost the efficiency and performance of machine tool coolant circulation, cleaning fluids, and the effective management of hydraulic and lubricating oils, enhancing overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and excellence in the dynamic domain of industrial precision filtration and cutting-edge self-cleaning solutions. With a prestigious history extending beyond a decade, we embody unrivaled expertise in both design and research & development. Utilizing state-of-the-art filtration technology, we present an extensive array of premium product offerings. Our comprehensive solutions deliver bespoke turnkey filtration systems meticulously crafted to meet the diverse and sophisticated needs of our esteemed clientele.
At SLOT, we are proud to uphold the distinguished ISO9001 quality management system certification and have earned accolades from SGS, underscoring our unwavering commitment to excellence. We rigorously adhere to international standards and industry-specific regulations, meticulously custom-designing products and manufacturing processes to align with each client's unique specifications. Our dedication is focused on creating filtration equipment and components that epitomize superior performance and extraordinary quality.
Our SLOT automatic self-cleaning filter systems are the top choice across a multitude of industries. These encompass petrochemicals, fine chemicals, the energy and power sectors, water treatment, automotive manufacturing, food and beverage production, and metal processing. We have forged strong and enduring partnerships with numerous prestigious 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 unparalleled excellence. For those in pursuit of superior filter system performance, flawless quality, and unmatched service, SLOT is your steadfast partner in achieving long-lasting success.

Quality Management
FAQ
1. Who are we?
Established in the bustling hub of Hebei, China, in 2014, we proudly bear the name Hebei Slot Filter Technology Co., Ltd., a leader in innovation and excellence. Our revolutionary solutions have made a significant impact across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dedicated team of 11 to 50 skilled professionals elevates our commitment to achieving extraordinary success.
2. How can we guarantee quality?
We are committed to delivering unparalleled quality. Prior to full-scale production, we conduct rigorous sample evaluations to ensure standards are impeccably met and aligned.
Every shipment is subjected to detailed inspections, maintaining our strict quality protocols and delivering unmatched consistency with precision.
3. What can you buy from us?
Explore our extensive range of meticulously crafted products, including the precision-engineered Johnson Screen, resilient Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, state-of-the-art Pipe-based screens, sturdy Perforated Pipes, and superior API/5CT Casing and Tubing. Each product is crafted to exceed your performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide a comprehensive array of OEM & ODM solutions, meticulously customizing products to fulfill your specific needs.
2. Our team of experts excels in custom design and development, transforming your vision into reality with bespoke technical drawings.
3. With our state-of-the-art R&D team, we deliver groundbreaking solutions, continually setting new industry benchmarks.
5. What services can we provide?
We offer a versatile range of delivery options including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
A wide variety of payment currencies are accepted such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring a smooth transaction process.
For ultimate convenience, we support various payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, providing you with maximum ease.
Communicate seamlessly with us across languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Interested in becoming an agent in your local market? Reach out to us and explore exciting partnership opportunities together.