Introducing the Quick Open Series: Experience the pinnacle of engineering innovation with our sophisticated multi-bag filter housings. Highlighted by a revolutionary self-balancing V-clamp locking mechanism, this series represents a monumental leap forward in design. Enjoy unparalleled convenience with seamless single-handed operation, making it the quintessential choice for high-flow applications. Perfectly blending efficiency with effortless usability, it is the ultimate solution for those who demand the best. Expertly engineered for environments requiring frequent filter replacements, this advanced system is a testament to cutting-edge engineering. It is specifically designed to drastically reduce downtime, ensuring maximum productivity. By optimizing every facet of its functionality, it significantly lowers operating costs, guaranteeing a flawless and continual batch processing experience. Embrace the perfect harmony of efficiency and cost-effectiveness, and keep your operations running seamlessly.
Pioneering a new era of safety and efficiency, our fully interlocked pressure release mechanism offers unparalleled assurance in every use. The robust, corrosion-resistant V-clamp construction, complemented by an innovative screw-drive mechanism, assures decades of reliable service, making it an indispensable asset for the most discerning users.
Elevate your filtration process with our extensive range of meticulously crafted filter-bag materials, each designed to meet specific and demanding requirements:
PP (Polypropylene): With an impressive rating range of 1-200µm, this versatile material endures temperatures up to 70°C, making it adaptable to a wide variety of settings and applications.
PE (Polyester): This durable material boasts a comprehensive range from 1-200µm, capable of withstanding temperatures up to 120°C, ideally suited for the most challenging and high-demand applications.
Nylon: Featuring an extensive range of 25-800µm and a remarkable temperature tolerance up to 150°C, this material is expertly crafted for the most arduous and demanding environments.
Discover the state-of-the-art capabilities of our Stainless Steel Multi-bag Filter Machine, a true masterpiece of unrivaled excellence and precise engineering. Explore our Filter-Bag Numbers alongside their Comprehensive Specifications: 1#: Dimensions at 180mmD x 410mmL; 2#: Measures 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: Boasting dimensions of 102mmD x 380mmL, our extensive selection addresses a wide spectrum of filtration needs, providing customized solutions tailored to every requirement.
The multi bag filter system exemplifies cutting-edge engineering brilliance, designed to revolutionize the filtration process with impeccable precision. Featuring an inlet ingeniously positioned beneath the filter bags, this advanced system gracefully channels the filter medium upward into the housing's top chamber. From this vantage point, it orchestrates a perfect descent, expertly maneuvering through the filter bags. This sophisticated method ensures that impurities are captured with exceptional efficacy, delivering only the purest filtrate with remarkable efficiency and elegance. Experience the ultimate in superior filtration technology with our innovative, state-of-the-art design.
For maintaining unparalleled filtration performance, vigilant monitoring of the filter bags is indispensable. When impurities accumulate to form dense filter cakes, creating a differential pressure between 0.14-0.17 MPa, it becomes evident that bag replacement is necessary. During this essential maintenance interval, the system must be meticulously shut down, the pressure relief valve carefully opened, and the filter cover gently removed. After securing new bags, the system is prepared to resume its impeccable operation. Our eco-friendly filter bags are designed for longevity, allowing for cleaning and reuse, but should be replaced if significantly compromised to ensure consistent performance and reliability. This diligent maintenance routine is crucial for optimizing efficiency and extending the operational life of your filtration system.
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, equipped with a swiftly operable flange ring and expertly fortified bolt fastening. Revel in its superb pressure resistance, a testament to its unmatched reliability and robust performance. The innovative booster spring mechanism ensures seamless and smooth operation, making frequent filter bag changes a breeze. This design significantly cuts down on downtime, amplifies productivity, reduces worker fatigue, and elevates overall operational efficiency.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveil the transformative spring-balance mechanism, enabling labor-saving operation of the upper cover, with effortless adjustment from 0 to 105° to suit your needs. The sturdy yet simplistic support structure, paired with an elegant clamshell design, eliminates liquid spillage when opening the lid. This not only optimizes space usage but also streamlines your workflow, enhancing operational efficiency seamlessly.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Discover the pinnacle of filtration with our advanced compression spring pressure piece, delivering a flawless 360° seal with the filter bag, eradicating any potential side leakage. The reinforced filter bag, coupled with the durable flower plate, withstands higher pressures and minimizes pressure loss, thereby boosting filtration performance. With a vast array of customization options, we provide flow configurations from 2 to 24 bags, meticulously tailored to meet your specific needs.
Effortlessly handle filter bag changes with our sophisticated spring locking device, designed for ease and convenience.
Our premium basket gasket is crafted for ultimate leakage prevention, ensuring consistent and reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Embrace a variety of customizable options for inlet and outlet directions, allowing precise alignment with your installation and user preferences. Enjoy the versatility of a flexible flange diameter, adjustable from DN25 to DN250, ensuring perfect compatibility with your system, delivering unparalleled adaptability and seamless integration.
Our expertly engineered bag filters are a testament to precision engineering, meticulously crafted to efficiently extract even the most minute trace impurities from liquids. These indispensable filters are the cornerstone of numerous industries, providing unparalleled precision and unwavering reliability. Immerse yourself in the assurance of flawless filtration, where each filter is designed to achieve extraordinary results with consistent excellence.
- Refined Chemicals Sector. Paint and Ink Filtration Excellence.
- Oil & Gas Sector Innovations. Providing reliable solutions for the complex challenges of produced water filtration and well injection water purification. Experience the peace of mind that comes with our dependable filtration systems, expertly navigating the intricacies of oil and gas applications.
- Food & Beverage Industry Solutions. Offering expert filtration tailored for beer and wine production, juice concentrate clarification, and ensuring the pristine processing of soft drinks and bottled water. Our solutions redefine purity, guaranteeing the highest standards of taste and quality are maintained in every sip and bite.
- Automotive Manufacturing Precision. 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, enhancing the durability and visual appeal of automotive components.
- Pulp & Paper Industry Applications. Providing advanced coating filtration solutions tailored to the unique demands of the pulp and paper industry. Empower your operations with high-performance filtration that ensures the purity and integrity of your paper products.
- Machining Industry Efficiency. Delivering superior filtration to enhance the efficiency of machine tool coolant circulation, cleaning fluids, and the management of hydraulic and lubricating oils. Experience unmatched performance and operational smoothness, ensuring your machining processes are optimized for productivity and precision.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. shines as a pioneer of innovation and mastery in the dynamic realm of industrial precision filtration and self-cleaning filtration solutions. Boasting an impressive legacy of over a decade, we demonstrate unmatched expertise in design and research & development. By leveraging state-of-the-art filtration technology, we offer an expansive selection of premium product resources. Our solutions are comprehensive and turnkey, crafted to fulfill the diverse and exacting demands of our respected clientele.
SLOT proudly maintains the esteemed ISO9001 quality management system certification and has earned accolades from SGS, highlighting our steadfast commitment to excellence. We diligently conform to international standards and specific industry regulations, meticulously tailoring our product designs and manufacturing processes to each client's unique specifications. Our driving passion lies in creating filtration equipment and components that exemplify stellar performance and superior quality.
Our SLOT automatic self-cleaning filter systems are the preferred solution across a broad spectrum of industries. These span petrochemicals, fine chemicals, the energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have cultivated strong and lasting partnerships with numerous esteemed industrial enterprises both domestically and globally.
Celebrated for our outstanding product filter performance, cutting-edge manufacturing capabilities, and dedicated professional services, SLOT is synonymous with excellence. For those seeking superior filter system performance, uncompromising quality, and exceptional service, SLOT is your trusted partner for the long haul.

Quality Management
FAQ
1. Who are we?
Established in 2014, in the dynamic and thriving region of Hebei, China, Hebei Slot Filter Technology Co., Ltd. stands as a beacon of innovation. Our pioneering solutions and exceptional products have left an indelible mark across diverse regions, capturing the hearts of North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our passionate team, comprising 11 to 50 dedicated experts, is relentlessly devoted to achieving unparalleled excellence at every juncture.
2. How can we guarantee quality?
Unwavering commitment to excellence defines our quality guarantee. By furnishing a sample prior to full-scale production, we ensure that all standards are meticulously met, promising flawless alignment with stringent quality benchmarks.
Every shipment undergoes comprehensive inspections, confirming that our exceptional standards and steadfast consistency are upheld to perfection.
3. What can you buy from us?
Explore a diverse collection of intricately engineered products, including 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 superior API/5CT Casing and Tubing. Each product is designed to surpass expectations in performance and reliability.
4. Why should you buy from us, not from other suppliers?
1. We offer a comprehensive array of OEM & ODM solutions, customizing products to seamlessly align with your unique requirements.
2. Our adept team excels in bespoke design and development, skillfully transforming your ideas into tangible reality with custom drawings tailored to your vision.
3. Equipped with a state-of-the-art R&D team, we are committed to delivering advanced, pioneering solutions that set new standards within the industry.
5. What services can we provide?
We offer adaptable delivery solutions to suit your needs, including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our acceptance of numerous payment currencies, including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensures a streamlined and hassle-free transaction experience.
For your convenience, we support an array of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow; providing you with ultimate flexibility.
Communicate with ease, as we cater to a variety of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Inspired to become an agent in your local market? Connect with us to explore thrilling opportunities and forge a successful partnership together.