Introducing the Quick Open Series: Experience the pinnacle of engineering excellence with our state-of-the-art multi-bag filter housings. Featuring an innovative self-balancing V-clamp locking mechanism, this series represents a revolutionary stride in design. It offers unparalleled convenience with effortless single-handed operation. Perfectly engineered for high-flow applications, it stands as the ultimate choice for those prioritizing efficiency and user-friendliness. Expertly engineered for scenarios necessitating frequent replacements, this cutting-edge system exemplifies engineering prowess, designed to dramatically minimize downtime. By enhancing functionality, it significantly lowers operating costs, ensuring a seamless and uninterrupted batch processing experience. Embrace the perfect blend of efficiency and cost-effectiveness, keeping your operations running smoothly and flawlessly.
Transforming safety and efficiency, our fully interlocked pressure release mechanism delivers absolute peace of mind in every situation. The robust, corrosion-resistant V-clamp construction, bolstered by an exclusive screw-drive mechanism, ensures years of reliable service, cementing its place as an indispensable tool for discerning users.
Elevate your filtration capabilities with our extensive array of precise and durable filter-bag materials, each expertly designed to meet specific requirements:
PP (Polypropylene): Rated perfectly at 1-200µm, this versatile material endures temperatures up to 70°C, making it suitable across a broad spectrum of settings and applications.
PE (Polyester): This exceptionally durable material spans a range of 1-200µm and withstands temperatures up to 120°C, making it perfect for the most demanding and rigorous applications.
Nylon: Boasting an impressive range of 25-800µm, with a remarkable high-temperature tolerance of up to 150°C, this material is finely tuned for the most challenging and harsh environments.
Discover the frontier of innovation with our Stainless Steel Multi-bag Filter Machine, an exemplar of unsurpassed precision and engineering prowess. Explore our Filter-Bag Numbers and their Comprehensive Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Measures 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: With dimensions of 102mmD x 380mmL, our extensive selection caters to a wide range of filtration needs, providing customized solutions for every requirement.
The multi-bag filter system is a marvel of engineering, precisely designed to enhance filtration with superior accuracy. Featuring an inlet strategically positioned below the filter bags, this design effortlessly guides the medium upwards into the housing's upper chamber. From this vantage point, the system meticulously directs the flow downwards, skillfully passing through the filter bags. This sophisticated process captures impurities with exceptional efficiency, ensuring the filtrate exits in its purest form. Experience the pinnacle of filtration innovation with our cutting-edge design, where pristine purity is delivered with unparalleled grace and efficiency.
To maintain peak filtration performance, it is essential to monitor the filter bags diligently. As impurities build up and form compact filter cakes, resulting in a differential pressure of 0.14-0.17 MPa, it's a clear signal that the bags need replacement. During this critical maintenance stage, ensure the system is carefully shut down, the pressure relief valve is cautiously opened, and the filter cover is gently removed. Once new bags are installed, the system is primed to resume flawless operation. Our sustainably designed filter bags can be cleaned and reused, but should be replaced if significantly compromised to ensure consistent performance and reliability. This maintenance routine is crucial for efficiency and extending 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
Discover the ultimate in pressure resistance with our innovative multi-bag filter system. Featuring a quick-opening flange ring securely fastened with bolts, it delivers outstanding performance and unwavering reliability. The built-in booster spring mechanism ensures effortless and smooth operation, making frequent filter bag changes a breeze. Enjoy remarkable reductions in downtime, significant productivity enhancements, minimized worker fatigue, and heightened operational efficiency with our meticulously designed system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Introducing a groundbreaking spring-balance mechanism that revolutionizes the operation of the upper cover. Enjoy effortless, labor-saving adjustments from 0 to 105° with this sturdy yet elegantly simple support structure. The sleek clamshell design eliminates liquid spillage, maximizing space and optimizing your workflow with unparalleled precision and efficiency.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our state-of-the-art compression spring pressure piece provides an impeccable 360° seal with the filter bag, completely negating any side leakage. The reinforced filter bag supports the robust flower plate, tolerating higher pressures while minimizing pressure loss to boost filtration performance. With diverse customization options, we offer flow configurations from 2 to 24 bags, perfectly tailored to meet your exact needs.
Experience the ease and simplicity of filter bag changes with our advanced spring locking device, designed for seamless operation.
Our meticulously engineered basket gasket is designed to prevent any leakage, ensuring consistent and reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Explore our extensive range of customizable inlet and outlet direction options. They are designed for perfect alignment with your specific installation needs and user preferences. With a flexible flange diameter that adjusts from DN25 to DN250, our system guarantees flawless integration with your existing setup, providing unparalleled adaptability and precision.
Our expertly engineered bag filters stand as a symbol of precision and excellence in engineering. They are meticulously crafted to ensure the efficient extraction of even the most minute trace impurities from liquids. These indispensable filters form the backbone of numerous industries, offering unparalleled precision and unwavering reliability that industries can trust.
- Innovative Solutions for the Refined Chemicals Sector. A New Standard in Paint and Ink Filtration Excellence.
- Cutting-Edge Innovations for the Oil & Gas Sector. We offer reliable solutions to tackle the complex challenges of produced water filtration and well injection water purification, ensuring efficiency and purity.
- Exceptional Solutions for the Food & Beverage Industry. Our expert filtration solutions are specifically tailored for beer and wine production, juice concentrate clarification, and assure the pristine processing of soft drinks and bottled water, maintaining quality and purity.
- Precision Filtration for Automotive Manufacturing. Our filtration solutions deliver enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and provide superior finish and primer filtration. Additionally, we ensure impeccable filtration for parts cleaning fluids, enhancing overall manufacturing quality.
- Innovative Filtration Applications for Pulp & Paper Industry. We provide advanced coating filtration solutions specifically tailored to meet the unique demands of the pulp and paper industry, optimizing performance and efficiency.
- Enhanced Efficiency for the Machining Industry. We deliver superior filtration solutions that enhance the efficiency of machine tool coolant circulation, cleaning fluids, and effectively manage hydraulic and lubricating oils, ensuring seamless operations.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. is a leading light of innovation and specialized knowledge in the dynamic world of industrial precision filtration and self-cleaning filtration solutions. With an illustrious history spanning over ten years, our company demonstrates unmatched expertise in design and R&D. Utilizing state-of-the-art filtration technology, we offer an expansive range of premium product resources. Our solutions are comprehensive and turnkey, meticulously crafted to satisfy the varied and sophisticated requirements of our valued clients.
Proudly, SLOT holds the esteemed ISO9001 quality management system certification, recognized by SGS, highlighting our unwavering commitment to excellence. We strictly adhere to international standards and industry-specific regulations, tailoring our product designs and manufacturing processes to each client's unique specifications. Our passion lies in producing filtration equipment and components that embody exceptional performance and superior quality.
Our cutting-edge SLOT automatic self-cleaning filter systems are the go-to choice across a broad spectrum of industries, including petrochemicals, fine chemicals, energy and power, 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, advanced manufacturing capabilities, and dedicated professional services, SLOT is synonymous with excellence. For those seeking superior filter system performance, uncompromised quality, and distinguished service, SLOT is your reliable partner for the long haul.

Quality Management: Our unwavering dedication to excellence is reflected in our rigorous quality management practices. We employ stringent standards and robust procedures to ensure that every product not only meets but exceeds our customers' expectations. Trust in our relentless pursuit of perfection.
FAQ: Your questions, expertly answered. Navigate through our comprehensive FAQ section to find detailed information about our company, products, and services. We aim to provide you with the clarity and assurance you need when choosing us as your trusted partner.
1. Who are we?
Established in 2014 in the vibrant region of Hebei, China, we are Hebei Slot Filter Technology Co., Ltd. As pioneers of innovation, our groundbreaking solutions have made a mark across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dynamic team, consisting of 11 to 50 dedicated professionals, is fervently committed to delivering excellence at every step.
2. How can we guarantee quality?
Our promise is firm-quality without compromise. We solidify our standards by offering a sample before full-scale production, ensuring every detail aligns flawlessly with your expectations.
Each shipment undergoes meticulous inspections, perfectly upholding our high-quality standards and unwavering consistency, ensuring that excellence is delivered to you every time.
3. What can you buy from us?
Discover our wide-ranging assortment of meticulously crafted products, such as the precision-crafted Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, state-of-the-art Pipe-based screens, strong Perforated Pipes, and superior API/5CT Casing and Tubing. Each product is engineered to perform beyond expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide a comprehensive suite of OEM & ODM solutions, seamlessly tailoring products to fit your unique needs with unmatched precision.
2. Our skilled team excels in bespoke design and development, turning your creative visions into reality through intricate custom drawings.
3. With a cutting-edge R&D team, we are dedicated to providing advanced and innovative solutions, setting new benchmarks in the industry.
5. What services can we provide?
We offer flexible delivery solutions including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our wide acceptance of payment currencies encompasses USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring a smooth and seamless transaction experience.
For your ease, we support a multitude of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow; offering you the utmost convenience.
Communicate with us effortlessly in a variety of 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 exhilarating opportunities together.