Introducing the Quick Open Series: Step into a world of unparalleled engineering excellence with our state-of-the-art multi-bag filter housings. At the heart of this innovation is the revolutionary self-balancing V-clamp locking mechanism, heralding a new era in design brilliance. This series epitomizes groundbreaking advancement, presenting unrivaled convenience through its effortless single-handed operation. Meticulously tailored for high-flow applications, it stands as the ultimate choice for those who value efficiency seamlessly paired with ease of use. Meticulously crafted for scenarios demanding frequent replacements, this sophisticated system is an engineering marvel, expertly designed to drastically minimize downtime. By optimizing functionality to precision, it significantly reduces operating expenses, ensuring a smooth, uninterrupted batch processing journey. Experience the ultimate harmony of efficiency and cost-effectiveness, guaranteeing your operations remain impeccably flawless.
Redefining the paradigms of safety and efficiency, our fully interlocked pressure release mechanism delivers unwavering peace of mind in every conceivable scenario. The sturdy, corrosion-resistant V-clamp construction, complemented by an exclusive screw-drive mechanism, promises years of relentless service. It establishes itself as an indispensable tool for discerning users who demand nothing short of excellence.
Elevate your filtration experience with our extensive selection of precise and resilient filter-bag materials, each meticulously crafted to fulfill specific requirements:
PP (Polypropylene): With a precise rating of 1-200µm, this adaptable material withstands temperatures up to 70°C, showcasing versatility across a multitude of settings and diverse applications.
PE (Polyester): This robust material offers an outstanding range of 1-200µm and can endure temperatures soaring up to 120°C, making it the ideal choice for the most challenging and demanding applications.
Nylon: Boasting an impressive range of 25-800µm, with remarkable high-temperature tolerance reaching up to 150°C, this material is expertly tailored for the most challenging and strenuous environments.
Uncover the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, a masterpiece of unrivaled excellence and precision engineering. Delve into our Filter-Bag Numbers accompanied by their Detailed Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Measures at 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: With dimensions of 102mmD x 380mmL, our diverse selection caters to a vast array of filtration requirements, delivering tailor-made solutions for every specific need.
The multi bag filter system is a masterpiece of engineering excellence, meticulously designed to revolutionize the filtration process with extraordinary precision. Introducing an ingeniously placed inlet beneath the filter bags, this system effortlessly welcomes the filter medium, directing it smoothly upwards into the housing's upper chamber. From this vantage point, the system orchestrates a controlled and precise descent through the filter bags. This sophisticated method ensures that impurities are effectively captured, leaving behind an exquisitely pure filtrate that exits with exceptional grace and efficiency. Experience the ultimate in pristine filtration with our cutting-edge design.
Maintaining optimal filtration performance demands diligent oversight of the filter bags. As impurities accumulate, forming compact filter cakes and resulting in a differential pressure of 0.14-0.17 MPa, it becomes evident that a bag replacement is necessary. During this critical maintenance stage, meticulously shut down the system, cautiously open the pressure relief valve, and gently remove the filter cover. Once new bags are installed, the system is poised to resume its flawless operation. Our sustainably designed filter bags can be cleaned and reused, though replacement is essential when significantly compromised to ensure consistent performance and reliability. This maintenance cycle is crucial for efficiency and the extended operational life of your filtration efforts.
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 pioneering multi-bag filter system boasts an advanced quick-opening flange ring, securely fastened with bolt technology, ensuring sterling pressure resistance. This promises robust and reliable performance. The integrated booster spring mechanism facilitates seamless operation, ideal for frequent filter bag swaps. Revel in significantly reduced downtime, remarkable productivity surges, minimized labor exertion, and enhanced overall operational efficiency with our expertly crafted system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Introducing our groundbreaking spring-balance mechanism that enables effortless and efficient operation of the upper cover, smoothly adjustable from 0 to 105° to suit your needs. This robust yet elegant support structure, paired with a sleek clamshell design, ensures no liquid spillage upon opening, maximizing space usage and streamlining your operational workflow.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our state-of-the-art compression spring pressure piece delivers flawless 360° sealing with the filter bag, entirely eliminating side leakage. Engineered for resilience, the reinforced filter bag supports the robust flower plate, enduring higher pressures while minimizing pressure loss, thus enhancing filtration performance. With a plethora of customization options, we offer customer flow configurations from 2 to 24 bags, meticulously customized to your specific demands.
Experience seamless and effortless filter bag changes with our advanced spring locking device
Our meticulously engineered basket gasket ensures absolute leakage prevention, guaranteeing reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We present a spectrum of customizable options for inlet and outlet directions, granting precise alignment with your installation needs and user preferences. The versatile flange diameter, adjustable from DN25 to DN250, ensures perfect integration with your existing setup, delivering unparalleled adaptability.
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, offering unmatched precision and unwavering reliability, ensuring that the highest standards are met across diverse applications.
- Refined Chemicals Sector Mastery. Unmatched Paint and Ink Filtration Excellence.
- Oil & Gas Sector Technological Innovations. Providing steadfast solutions for the intricate challenges of produced water filtration and the purification of well injection water, ensuring operational efficiency and environmental compliance.
- Food & Beverage Industry Filtration Solutions. Offering expert filtration solutions tailored for optimizing beer and wine production, juice concentrate clarification, and ensuring the pristine processing of soft drinks and bottled water. Our filters maintain the highest quality standards, safeguarding taste and purity.
- Automotive Manufacturing Precision and Efficiency. Delivers enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. Our solutions ensure impeccable filtration for parts cleaning fluids, thereby enhancing quality and manufacturing efficiency.
- Pulp & Paper Industry Specialized Applications. Providing advanced coating filtration solutions meticulously tailored to meet the unique demands of the pulp and paper industry, ensuring seamless operations and product excellence.
- Machining Industry Efficiency and Enhancement. Delivering superior filtration to significantly enhance the efficiency of machine tool coolant circulation, cleaning fluids, and the management of hydraulic and lubricating oils, thus maximizing equipment lifespan and operational productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. emerges as a beacon of innovation and expertise in the dynamic realm of industrial precision filtration and self-cleaning solutions. With a remarkable legacy exceeding a decade, our company demonstrates unmatched prowess in design, research, and development. By leveraging cutting-edge filtration technology, we offer an expansive array of high-quality product resources. Our solutions are holistic, turnkey filtration systems crafted to cater to the varied and discerning needs of our esteemed clientele.
At SLOT, we proudly uphold the distinguished ISO9001 quality management system certification, further validated by recognition from SGS, highlighting our steadfast commitment to excellence. We diligently adhere to international standards and specific industry regulations, meticulously tailoring our product designs and manufacturing processes to fulfill each client's precise requirements. Our passion is dedicated to creating filtration equipment and components that embody exceptional performance and superior quality.
Our SLOT automatic self-cleaning filter systems are the preferred choice across a broad spectrum of 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 numerous esteemed industrial enterprises both domestically and internationally.
Celebrated for our outstanding product filter performance, cutting-edge manufacturing capabilities, and devoted professional services, SLOT is synonymous with excellence. For those seeking superior filter system performance, uncompromised 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 vibrant region of Hebei, China, we are Hebei Slot Filter Technology Co., Ltd. We are trailblazers of innovation and our groundbreaking solutions have left an indelible mark across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dynamic team, which is composed of 11 to 50 dedicated professionals, is fervently committed to delivering unmatched excellence at every step of our operation.
2. How can we guarantee quality?
Our commitment is unwavering-quality without compromise. We uphold the highest standards by providing a meticulously crafted sample before commencing full production, ensuring everything aligns with perfection.
Every shipment is subject to comprehensive inspections, ensuring our esteemed high-quality standards and consistent reliability are met with absolute precision.
3. What can you buy from us?
Explore our diverse selection of impeccably designed products, including the exquisitely engineered Johnson Screen, robust Bridge Slotted Well Screens, and advanced Sand Control Well Screens, complemented by GravelPre-pack Screen, cutting-edge Pipe-based screens, durable Perforated Pipes, and top-tier API/5CT Casing and Tubing. Each product is crafted to exceed expectations and deliver exceptional performance.
4. Why should you buy from us, not from other suppliers?
1. We offer a complete suite of OEM & ODM solutions, customizing products to seamlessly meet your unique needs.
2. Our expert team excels in bespoke design and development, transforming your ideas into reality with custom drawings.
3. Driven by a pioneering R&D team, we deliver cutting-edge and innovative solutions, setting new standards in the industry.
5. What services can we provide?
We provide versatile delivery solutions, including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accept a broad spectrum of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF; ensuring a seamless transaction experience.
For your convenience, we support an extensive range of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow; offering you the highest level of convenience.
Effortlessly communicate with us in a variety of languages, including: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Interested in becoming an agent in your local market? Connect with us, and let's explore thrilling opportunities together.