The Quick Open series multi-bag filter housings boast an innovative self-balancing V-clamp locking mechanism, revolutionizing the traditional designs. Its intuitive, one-handed operation makes it the perfect solution for applications demanding high flow rates and frequent element change-outs.
This efficient design minimizes downtime, significantly cutting operating costs and ensuring seamless batch processing.
Experience enhanced efficiency with our fully-interlocked pressure release system, offering unparalleled safety across all conditions. Built to endure, the rugged, corrosion-free V-clamp and unique screw-drive mechanism ensure the housing delivers years of reliable service.
Transform your filtration approach with our wide range of precise, durable filter-bag materials, each crafted meticulously to fulfill distinct needs:
PP (Polypropylene): Engineered for 1-200µm filtration, this versatile material withstands temperatures up to 70°C, making it ideal for diverse applications.
PE (Polyester): Offering a broad 1-200µm range, this robust material withstands temperatures up to 120°C, perfect for the most challenging applications.
Nylon: With a remarkable range of 25-800µm and high-temperature resistance up to 150°C, this material is designed for extreme environments.
Unveil the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, epitomizing engineering excellence and precision. Delve into our Filter-Bag Numbers with their Detailed Specifications below: 1#: Dimensions: 180mmD x 410mmL; 2#: Dimensions: 180mmD x 810mmL; 3#: Dimensions: 102mmD x 210mmL; 4#: Dimensions: 102mmD x 380mmL. Our extensive selection ensures a comprehensive solution for every filtration requirement.

The multi bag filter system exemplifies state-of-the-art engineering, crafted with meticulous precision to transform the filtration process into a seamless experience. With a cleverly positioned inlet beneath the filter bags, the system artfully directs the filter medium upwards into the upper chamber of the housing. From this elevated position, the flow is elegantly channeled downwards with unerring precision, expertly passing through the filter bags. This refined process efficiently captures impurities, ensuring that only the purest filtrate emerges, characterized by its exceptional grace and efficiency. Discover the pinnacle of pristine filtration with our innovative design, offering a superior filtration experience.
To ensure optimal filtration performance, vigilant monitoring of the filter bags is crucial. As impurities accumulate, forming dense filter cakes and causing a differential pressure of 0.14-0.17 MPa, it becomes clear that bag replacement is necessary. During this critical maintenance phase, ensure the system is carefully shut down, the pressure relief valve is opened gently, and the filter cover is removed with caution. After installing fresh bags, the system is poised to resume its flawless operation. Our filter bags are designed to be eco-friendly, allowing for cleaning and reuse, although they should be replaced if significantly compromised to maintain consistent performance and reliability. This maintenance cycle is essential for ensuring efficiency and prolonging the operational lifespan of 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
Our cutting-edge multi-bag filter system proudly features a quick-opening flange ring, expertly secured with robust bolt fastening. This design delivers unmatched pressure resistance, ensuring steadfast reliability and exceptional performance. The innovative booster spring mechanism facilitates effortless operation, transforming frequent filter bag changes into a quick and easy task. Witness a dramatic reduction in downtime, significant productivity enhancements, minimized worker fatigue, and a remarkable increase in operational efficiency with this meticulously engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveil the genius of our revolutionary spring-balance mechanism, offering smooth and labor-saving operation of the upper cover. With effortless adjustability from 0 to 105°, it flaunts a sophisticated, clamshell design that guarantees zero liquid spills when opened. This efficient structure optimizes space utilization and streamlines your workflow, maximizing every inch of your operational area.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece ensures a flawless 360° seal with the filter bag, effectively preventing side leakage. The reinforced filter bag is expertly designed to support the durable flower plate, capable of withstanding higher pressures while reducing pressure loss, thereby enhancing filtration performance. With a range of customization options, we offer flow configurations from 2 to 24 bags, precisely tailored to meet your specific requirements.
Experience smooth, effortless filter bag changes with our state-of-the-art spring locking device, ensuring a seamless workflow.
Our basket gasket is engineered to guarantee absolute leakage prevention, providing unwavering and dependable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a wide range of customizable inlet and outlet direction options, ensuring precise alignment with your installation requirements and user preferences. The adaptable flange diameter, adjustable from DN25 to DN250, ensures seamless integration with your existing system, offering unmatched adaptability and flexibility.
Our expertly engineered bag filters represent the zenith of precision engineering. Crafted with meticulous attention to detail, they skillfully extract even the tiniest impurities from liquids. These indispensable filters serve as the backbone across a wide spectrum of industries, offering unmatched precision and reliability that remain unwavering.
- Refined Chemicals Sector: Harnessing the full power of high-precision filtration to enhance the quality and purity of chemical products, ensuring exceptional standards are consistently met. Paint and Ink Filtration Excellence: Guaranteeing vibrant colors and flawless finishes, our filters set the benchmark in paint and ink filtration, delivering unparalleled performance every time.
- Oil & Gas Sector Innovations: Pioneering the frontiers with cutting-edge filtration solutions that enhance efficiency and safety in the oil and gas industry, contributing to groundbreaking advancements. Providing robust solutions for the intricate challenges of produced water filtration and well injection water purification, ensuring peak performance and strict environmental compliance.
- Food & Beverage Industry Solutions: Enhancing quality and safety with custom filtration tailored to diverse food and beverage processing requirements, ensuring top-tier results. Delivering expert filtration meticulously crafted for beer and wine production, juice concentrate clarification, and achieving immaculate processing of soft drinks and bottled water, maintaining exceptional 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. Delivers improved 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 at every turn.
- Pulp & Paper Industry Applications: Offering state-of-the-art coating filtration solutions crafted for the distinctive and demanding needs of the pulp and paper industry. Providing advanced coating filtration solutions meticulously tailored to the unique demands of the pulp and paper sector, ensuring seamless and flawless production processes.
- Machining Industry Efficiency: Leading the charge in boosting tool performance and longevity through superior filtration technology, advancing industry standards. Delivering top-tier filtration to optimize the efficiency and performance of machine tool coolant circulation, cleaning fluids, and the effective management of hydraulic and lubricating oils, significantly boosting overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation in the vibrant world of industrial precision filtration and self-cleaning filtration solutions. With a prestigious history exceeding a decade, our company showcases exceptional prowess in design and R&D. By harnessing the power of advanced filtration technologies, we provide an extensive range of premium-quality product resources. Our solutions are comprehensive, delivering complete turnkey filtration systems meticulously designed to fulfill the diverse and complex needs of our esteemed clientele.
At SLOT, we take immense pride in upholding the renowned ISO9001 quality management system certification and have earned accolades from SGS, underscoring our unwavering commitment to excellence. We rigorously adhere to global standards and specific industry regulations, custom-designing our products and refining our manufacturing processes to meet each client's distinct requirements. Our dedication translates into the creation of filtration equipment and components that are synonymous with extraordinary performance and unmatched quality.
Our SLOT automatic self-cleaning filter systems are the quintessential choice for a broad spectrum of industries. These industries include petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have fostered strong and enduring partnerships with numerous esteemed industrial enterprises, both nationally and internationally.
Renowned for our exceptional product filter performance, state-of-the-art manufacturing capabilities, and devoted professional services, SLOT is a byword for excellence. For those seeking superior filter system performance, impeccable quality, and unparalleled service, SLOT is your trusted partner for achieving enduring success.

Quality Management
FAQ
1. Who are we?
Established in 2014 amidst the vibrant landscape of Hebei, China, Hebei Slot Filter Technology Co., Ltd. stands as a beacon of pioneering innovation. Our state-of-the-art solutions resonate powerfully across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). With a dynamic team of 11 to 50 dedicated professionals, we are driven by excellence and a passion for achieving the extraordinary.
2. How can we guarantee quality?
Quality is our hallmark. We rigorously validate standards through comprehensive sample evaluations before full production to ensure impeccable alignment.
Every shipment is subjected to comprehensive inspections, ensuring our stringent quality benchmarks are upheld with unmatched consistency and precision.
3. What can you buy from us?
Explore an extensive array of meticulously crafted products, including the precision-engineered Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, complemented by GravelPre-pack Screen, innovative Pipe-based screens, durable Perforated Pipes, and top-tier API/5CT Casing and Tubing. Each product is engineered to exceed performance expectations.
4. Why should you buy from us, not from other suppliers?
1. Offering a comprehensive suite of OEM & ODM solutions, we seamlessly customize products to fulfill your specific needs.
2. Our team of experts excels in bespoke design and development, turning your visions into reality with tailor-made drawings.
3. Powered by a forward-thinking R&D team, we provide innovative solutions that redefine industry standards.
5. What services can we provide?
We provide a multitude of flexible delivery options, including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our diverse acceptance of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF ensures a smooth transaction experience.
For your utmost convenience, we support a variety of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, providing ultimate convenience.
Communicate with ease in multiple languages including: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Aspiring to represent us in your local market? Contact us to discover exciting partnership opportunities together.