Introducing the Quick Open series multi-bag filter housings, a revolutionary enhancement in filtration technology. Equipped with a self-balancing V-clamp locking mechanism, this innovative system surpasses conventional designs. Redefining convenience, its easy single-handed operation makes it the ultimate choice for applications demanding high flow rates and frequent element replacements.
Experience seamless operations with minimal downtime, substantially reducing operating costs and ensuring smooth batch processes.
Our efficiency is exponentially elevated by a fully-interlocked pressure release, guaranteeing unparalleled safety in every condition. Engineered with a rugged, corrosion-resistant V-clamp and a proprietary screw-drive mechanism, this housing promises years of durable service.
Enhance your filtration journey with our wide array of precise, robust filter-bag materials, each crafted to exacting standards to fulfill diverse demands:
PP (Polypropylene): With a rating of 1-200µm and tolerance for temperatures up to 70°C, this adaptable material is perfect for a variety of environments and applications.
PE (Polyester): Offering a robust range of 1-200µm and the ability to withstand temperatures up to 120°C, this material excels in the most demanding settings.
Nylon: Boasting a remarkable range of 25-800µm and exceptional high-temperature resistance up to 150°C, this material is perfectly suited for the toughest environments.
Unveil the cutting-edge capabilities of our Stainless Steel Multi-bag Filter Machine, a true masterpiece of precision engineering and excellence. Delve into our Filter-Bag Numbers and uncover their Detailed Specifications: 1#: 180mmD x 410mmL; 2#: 180mmD x 810mmL; 3#: 102mmD x 210mmL; 4#: 102mmD x 380mmL. Our extensive selection is designed to meet a wide spectrum of filtration needs, providing customized solutions for every requirement.

The multi bag filter system represents the epitome of advanced engineering, meticulously designed to revolutionize the filtration experience with unparalleled precision. Featuring a strategically positioned inlet beneath the filter bags, the system graciously guides the filter medium upwards into the housing's upper chamber. From this vantage point, it gracefully directs the flow downwards with impeccable accuracy, expertly channeling through the filter bags. This sophisticated process adeptly captures impurities, delivering nothing less than the purest filtrate with unmatched grace and efficiency. Experience the zenith of pristine filtration with our cutting-edge design.
To maintain supreme filtration performance, diligent monitoring of the filter bags is essential. As impurities gather and form dense filter cakes, leading to a differential pressure of 0.14-0.17 MPa, it becomes evident that bag replacement is crucial. During this critical maintenance stage, ensure the system is carefully shut down, the pressure relief valve gently opened, and the filter cover delicately removed. Once fresh bags are installed, the system stands ready to resume its impeccable operation. Our filter bags, designed for eco-friendliness, can be cleaned and reused, yet should be replaced if significantly impaired to preserve consistent performance and dependability. This maintenance cycle is key to efficiency and extended operational longevity in your filtration pursuits.
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 state-of-the-art multi-bag filter system is designed with an advanced quick-opening flange ring, securely fastened with sturdy bolts to ensure unmatched pressure resistance. This assures consistent reliability and outstanding performance. The ingenious booster spring mechanism allows for nearly effortless operation, simplifying frequent filter bag changes. Enjoy a significant reduction in downtime, enhanced productivity, reduced worker fatigue, and improved operational efficiency, all thanks to this carefully engineered marvel.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveil the ingenuity of our revolutionary spring-balance mechanism, designed for smooth and hassle-free operation of the upper cover. With a fluid adjustability range from 0 to 105°, this elegant clamshell design ensures zero liquid spillage upon opening. This highly efficient structure maximizes the use of space and enhances workflow efficiency, optimizing every corner of your operational area for peak performance.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our pioneering compression spring pressure piece guarantees an impeccable 360° seal with the filter bag, effectively eliminating any risk of side leakage. The robust filter bag supports the resilient flower plate, capable of enduring greater pressures while minimizing pressure loss, thereby boosting filtration efficiency. With a vast array of customization options, we offer customer flow configurations ranging from 2 to 24 bags, meticulously crafted to cater to your unique requirements.
Embrace smooth and effortless filter bag changes with our revolutionary spring locking device, ensuring a seamless operational flow.
Our expertly crafted basket gasket is designed to ensure complete prevention of leakage, guaranteeing reliable and consistent performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Explore our extensive range of customizable inlet and outlet direction options, tailored to align precisely with your installation requirements and user preferences. The adaptable flange diameter, adjustable between DN25 and DN250, ensures seamless integration with your existing system, providing unmatched flexibility and versatility.
Our expertly engineered bag filters are the epitome of precision craftsmanship, designed to tackle even the finest impurities in liquids with unmatched efficiency. These essential components are foundational across a wide array of industries, providing exceptional precision and reliability that stands the test of time.
- Refined Chemicals Sector: Harnessing the power of high-precision filtration to significantly enhance the quality and purity of chemical products. Paint and Ink Filtration Excellence: Our filters set a new benchmark in the industry, ensuring vibrant colors and flawless finishes in paint and ink applications.
- Oil & Gas Sector Innovations: At the forefront of technology, our advanced filtration solutions drive efficiency and safety enhancements in the oil and gas sector. Overcoming complex challenges with reliable filtration solutions for produced water treatment and well injection water purification, guaranteeing optimal performance and adherence to environmental standards.
- Food & Beverage Industry Solutions: Enhancing quality and ensuring safety through bespoke filtration solutions for the varied needs of food and beverage processing. Expertly crafted filtration tailored for the production of beer and wine, juice clarification, and the immaculate processing of soft drinks and bottled water, preserving exceptional quality and flavor.
- Automotive Manufacturing Precision: Pioneering excellence with advanced filtration solutions for spray coating pretreatment, electrophoretic paint processing, and achieving superior finish and primer quality. Our solutions deliver peak performance in automotive spray coating pretreatment, electrophoretic paint processing, and achieving superior finish and primer quality. We also guarantee flawless filtration for parts cleaning fluids, maximizing performance and precision in every application.
- Pulp & Paper Industry Applications: Tailored advanced coating filtration solutions for the demanding needs of the pulp and paper industry, ensuring seamless and flawless production processes. Providing cutting-edge coating filtration solutions customized for the unique requirements of the pulp and paper industry, ensuring smooth and impeccable production.
- Machining Industry Efficiency: Leading advancements in tool performance and durability through state-of-the-art filtration technology. Delivering top-tier filtration solutions to boost the efficiency and performance of machine tool coolant systems, cleaning fluids, and the strategic management of hydraulic and lubricating oils, thereby enhancing overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and reliability in the ever-evolving landscape of industrial precision filtration and self-cleaning solutions. With a prestigious legacy extending beyond ten years, our company radiates unparalleled expertise in design and research & development. Harnessing state-of-the-art filtration technology, we present an extensive array of premium product offerings. Our bespoke solutions provide comprehensive, turnkey filtration systems, expertly crafted to meet the diverse and discerning needs of our esteemed clientele.
At SLOT, we proudly embrace the prestigious ISO9001 quality management system certification, complemented by endorsements from SGS, which underscore our unwavering dedication to excellence. We rigorously adhere to international standards and stringent industry regulations, meticulously tailoring our product designs and manufacturing processes to fulfill each client's distinct specifications. Our unwavering dedication focuses on producing filtration equipment and components characterized by remarkable performance and unmatched quality.
The SLOT automatic self-cleaning filter systems are recognized as the premier selection across a myriad of industries, including petrochemical, fine chemical, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. Our enduring partnerships with numerous renowned industrial enterprises, both domestically and globally, are a testament to our commitment to quality and innovation.
Celebrated for our extraordinary product filter efficiency, pioneering manufacturing prowess, and unwavering professional services, SLOT epitomizes perfection. For those pursuing superior filter system performance, flawless quality, and exceptional service, SLOT is your trusted partner in achieving lasting success.

Quality Management
FAQ
1. Who are we?
Established in the vibrant core of Hebei, China, in 2014, Hebei Slot Filter Technology Co., Ltd. has become a beacon of innovation and technological prowess. Our state-of-the-art solutions have made significant impacts in 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 is driven by a relentless pursuit of excellence and innovation.
2. How can we guarantee quality?
Our steadfast promise is to provide unparalleled quality. Through rigorous pre-production sample evaluations, we ensure that our standards are impeccably met with precision.
Every shipment is subjected to thorough inspections, maintaining our strict quality standards and delivering consistency with refined accuracy.
3. What can you buy from us?
Explore our extensive range of meticulously designed products like the high-precision Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, as well as GravelPre-pack Screen, innovative Pipe-based screens, strong Perforated Pipes, and top-tier API/5CT Casing and Tubing. Each product is crafted to surpass high performance standards.
4. Why should you buy from us, not from other suppliers?
1. We offer an all-encompassing suite of OEM & ODM solutions, customizing our products to fit your specific demands seamlessly.
2. Our skilled team excels in custom design and development, turning your vision into reality with personalized blueprints.
3. With a cutting-edge R&D team, we provide innovative solutions and consistently set new benchmarks in the industry.
5. What services can we provide?
We provide adaptable delivery options including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accept a broad spectrum of payment currencies like USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring a smooth and convenient transaction experience.
For your utmost convenience, we accommodate various payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, giving you ultimate flexibility.
Engage seamlessly with us in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Aspiring to become an agent in your local market? Reach out to us and let's explore exciting opportunities together.