The Quick Open series of multi-bag filter housings showcases an innovative self-balancing V-clamp locking mechanism, marking a revolutionary departure from traditional designs. This cutting-edge feature allows for intuitive, single-handed operation, making it the perfect choice for high-flow applications that demand regular element change-outs.
Its design minimizes downtime, thereby significantly reducing operational costs and ensuring seamless batch processing.
Efficiency reaches new heights with a fully-interlocked pressure release system, guaranteeing safety under all circumstances. With its robust, corrosion-resistant V-clamp and unique screw-drive mechanism, this housing promises users long-lasting performance.
Experience a new level of filtration with our wide array of precise and durable filter-bag materials, each thoughtfully crafted to fulfill specific needs:
PP (Polypropylene): Rated between 1-200µm, this versatile material can endure temperatures up to 70°C, offering broad applicability across various scenarios and usages.
PE (Polyester): Known for its exceptional durability, this material ranges from 1-200µm and withstands temperatures up to 120°C, making it ideal for extremely rigorous applications.
Nylon: With an incredible range of 25-800µm and high-temperature resistance up to 150°C, this material is engineered for the most challenging and demanding environments.
Discover the pinnacle of modern filtration with our Stainless Steel Multi-bag Filter Machine, a model of superior quality and precision engineering. Delve into our Filter-Bag Numbers along with their Comprehensive Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Dimensions are 180mmD x 810mmL; 3#: Dimensions are 102mmD x 210mmL; 4#: Dimensions are 102mmD x 380mmL. This broad selection is designed to satisfy a wide spectrum of filtration needs, ensuring bespoke solutions for every application.

Our multi bag filter system epitomizes the pinnacle of advanced engineering, meticulously crafted to transform your filtration experience with unrivaled precision. At its core, this system boasts a strategically positioned inlet beneath its filter bags, gracefully guiding the filter medium upwards into the housing's upper chamber. From this elevated position, it ensures a downward flow with impeccable accuracy, expertly directing it through the filter bags. This sophisticated process captures impurities with finesse, offering the purest filtrate and elevating the filtration to new heights of grace and efficiency. Discover the zenith of pristine filtration with this cutting-edge masterpiece.
For optimal filtration performance, diligent monitoring of filter bags is paramount. As impurities form dense filter cakes, causing a differential pressure of 0.14-0.17 MPa, prompt bag replacement becomes essential. During this critical maintenance phase, gently shut down the system, carefully open the pressure relief valve, and delicately remove the filter cover. Once new bags are in place, the system resumes its impeccable performance. Our eco-friendly filter bags can be cleaned and reused, but should be replaced if significantly worn to ensure consistent performance and reliability. This maintenance cycle is crucial to achieving peak efficiency and prolonging the operational life 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 state-of-the-art multi-bag filter system boasts a quick-opening flange ring, expertly secured with robust bolt fastening. This ingenious design guarantees unmatched pressure resistance, assuring steadfast reliability and outstanding performance. The cutting-edge booster spring mechanism simplifies operation, ensuring filter bag changes are effortlessly quick. Revel in the dramatic reduction of downtime, enjoy substantial boosts in productivity, diminish worker fatigue, and witness a remarkable surge in operational efficiency with this meticulously engineered marvel.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveil the brilliance of our revolutionary spring-balance mechanism, delivering seamless and labor-saving operation of the upper cover. Its smooth adjustability from 0 to 105° supports a streamlined clamshell design, guaranteeing zero liquid spills upon opening. This efficient structure not only optimizes spatial utilization but also enhances workflow, maximizing every inch of your operational space for supreme efficiency.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece ensures a flawless 360° seal with the filter bag, completely eradicating side leakage issues. The reinforced filter bag is engineered to support the durable flower plate, resilient under higher pressures while minimizing pressure loss, thus greatly boosting filtration efficacy. With a wide array of customization options, we provide customer flow configurations from 2 to 24 bags, meticulously tailored to fulfill your specific needs.
Experience silky-smooth, effortless filter bag changes with our pioneering spring locking device, ensuring an uninterrupted and seamless workflow.
Our basket gasket is meticulously crafted to guarantee absolute leakage prevention, delivering unwavering and dependable performance that you can trust.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We offer an extensive suite of customizable inlet and outlet direction options, ensuring precise alignment with your installation needs and user preferences. The adaptable flange diameter, adjustable from DN25 to DN250, ensures perfect integration with your existing system, offering unparalleled adaptability and flexibility for seamless system compatibility.
Hebei Slot Filter Technology Co., Ltd. proudly presents our expertly engineered bag filters, a testament to the pinnacle of precision engineering. Crafted with meticulous attention to detail, these filters efficiently extract even the most minuscule trace impurities from liquids. Serving as indispensable solutions across a spectrum of industries, they offer unmatched precision and reliability that withstands the test of time.
- Refined Chemicals Sector: Unleashing the full potential of high-precision filtration to elevate the quality and purity of chemical products, ensuring every drop meets the highest standards. Paint and Ink Filtration Excellence: Our filters set the industry standard by ensuring vibrant colors and flawless finishes, revolutionizing paint and ink filtration processes.
- Oil & Gas Sector Innovations: At the forefront of the industry, we lead with state-of-the-art filtration solutions that enhance both efficiency and safety in the oil and gas sector. We provide reliable solutions for the complex challenges of produced water filtration and well injection water purification, ensuring optimal performance while maintaining environmental compliance.
- Food & Beverage Industry Solutions: We elevate quality and safety with expertly tailored filtration solutions to meet diverse food and beverage processing needs, ensuring every product is of the highest standards. Our expert filtration is tailored for beer and wine production, juice concentrate clarification, and the pristine processing of soft drinks and bottled water, ensuring exceptional quality and taste with every sip.
- Automotive Manufacturing Precision: Driving excellence in the automotive industry with enhanced filtration solutions for spray coating pretreatment and electrophoretic paint processing, ensuring a superior finish and primer filtration. Our solutions deliver enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. We ensure impeccable filtration for parts cleaning fluids, optimizing performance and precision in every application.
- Pulp & Paper Industry Applications: We deliver advanced coating filtration solutions designed to meet the unique and demanding needs of the pulp and paper industry. Providing advanced coating filtration solutions tailored to the unique challenges of the pulp and paper industry, ensuring smooth and flawless production processes that meet industry standards.
- Machining Industry Efficiency: Leading the way with superior filtration technology, we enhance tool performance and longevity, making every operation more efficient. We deliver superior filtration that enhances the efficiency and performance of machine tool coolant circulation, cleaning fluids, and effectively manages hydraulic and lubricating oils, significantly boosting overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. shines brightly as a leading force in the ever-evolving field of industrial precision filtration and self-cleaning filtration solutions. With a proud legacy over a decade long, our expertise in design and R&D is unparalleled. By harnessing state-of-the-art filtration technology, we offer an extensive array of premium product resources. Our comprehensive solutions deliver complete, turnkey filtration systems, meticulously crafted to meet the diverse and sophisticated demands of our esteemed clients.
At SLOT, the prestigious ISO9001 quality management system certification is a testament to our unwavering commitment to excellence, further endorsed by accolades from SGS. We adhere rigorously to international standards and specific industry regulations, customizing our product designs and manufacturing processes to fulfill each client's unique specifications. Our unwavering dedication is reflected in the production of filtration equipment and components that showcase superior performance and unsurpassed quality.
Our SLOT automatic self-cleaning filter systems are the epitome of choice for numerous industries including petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have established strong and enduring partnerships with many prestigious industrial enterprises, both locally and globally.
Renowned for our exceptional product filter performance, cutting-edge manufacturing capabilities, and unwavering professional services, SLOT is synonymous with excellence. For those seeking top-notch filter system performance, impeccable quality, and outstanding service, SLOT is your committed partner for lasting success.

Quality Management
FAQ
1. Who are we?
Founded in the vibrant and industrious region of Hebei, China, in 2014, Hebei Slot Filter Technology Co., Ltd. stands as a beacon of cutting-edge innovation. Reverberating across key markets, our pioneering solutions captivate North America (40%), Western Europe (30%), and South Asia (10%),
Africa (10%), along with the Middle East (10%). Comprising a dedicated team of 11 to 50 passionate professionals, we are driven by a commitment to excellence and a pursuit of the extraordinary.
2. How can we guarantee quality?
Our steadfast promise is to deliver unparalleled quality. Prior to full-scale production, we ensure standards are validated with rigorous sample evaluations, guaranteeing flawless alignment with customer expectations.
Every shipment is subjected to meticulous inspections, ensuring adherence to our stringent quality benchmarks and delivering unmatched consistency with impeccable precision.
3. What can you buy from us?
Explore our expansive range of expertly crafted products including precision-engineered Johnson Screens, robust Bridge Slotted Well Screens, and Sand Control Well Screens, enhanced with GravelPre-pack Screens, state-of-the-art Pipe-based screens, durable Perforated Pipes, and premium API/5CT Casing and Tubing. Each offering is meticulously designed to surpass performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide a comprehensive suite of OEM & ODM solutions, seamlessly customizing products to meet your distinct needs.
2. Our expert team excels in bespoke design and development, transforming your concepts into tangible realities with custom drawings.
3. Boasting an advanced R&D team, we offer innovative solutions that set new benchmarks in the industry.
5. What services can we provide?
We offer an array of flexible delivery options such as: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accommodate a wide spectrum of payment currencies including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring a seamless 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, delivering ultimate ease.
Communicate seamlessly with us in a multitude of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Aspire to be an influential agent in your local market? Reach out to us and embark on exciting opportunities together.