Introducing the Quick Open Series: Experience the pinnacle of engineering brilliance with our state-of-the-art multi-bag filter housings, featuring a cutting-edge self-balancing V-clamp locking mechanism. This series represents a revolutionary leap in design, offering unparalleled convenience with its seamless single-handed operation. Perfectly tailored for high-flow applications, it stands as the top choice for those pursuing efficiency combined with effortless use. Expertly crafted for scenarios necessitating frequent replacements, this advanced system is a masterpiece of engineering, designed to drastically reduce downtime. By optimizing functionality, it significantly lessens operating costs, ensuring a smooth and uninterrupted batch processing journey. Enjoy the ultimate blend of efficiency and cost-effectiveness, keeping your operations flawless and seamless.
Redefining safety and efficiency, our fully interlocked pressure release mechanism delivers unwavering peace of mind in any situation. The robust, corrosion-resistant V-clamp construction, complemented by an exclusive screw-drive mechanism, guarantees years of dependable service, establishing its status as an indispensable tool for discerning users.
Enhance your filtration experience with our extensive selection of precise and resilient filter-bag materials, each meticulously crafted to meet specific requirements:
PP (Polypropylene): Precisely rated at 1-200µm, this versatile material withstands temperatures up to 70°C, proving adaptable across a multitude of settings and applications.
PE (Polyester): This durable material offers a broad range of 1-200µm and can withstand temperatures reaching 120°C, making it ideal for the most rigorous and demanding applications.
Nylon: Featuring an impressive range of 25-800µm, with a remarkable high-temperature tolerance of up to 150°C, this material is designed for the most challenging and strenuous environments.
Discover the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, a masterpiece of excellence and precision engineering. Explore our Filter-Bag Numbers along with their Detailed Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Measures at 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: Dimensions of 102mmD x 380mmL - our diverse selection caters to an extensive range of filtration requirements, delivering tailor-made solutions for every need.
The multi bag filter system stands as a testament to ingenious engineering, meticulously crafted to elevate the filtration process with unmatched accuracy. Unveiling an inlet strategically positioned below the filter bags, this system elegantly welcomes the filter medium, guiding it seamlessly upwards into the housing's upper chamber. From there, the system orchestrates a descending journey with precision, expertly navigating through the filter bags. This refined technique ensures impurities are adeptly captured, leaving behind only the purest filtrate, which exits with unparalleled grace and efficiency. Discover the pinnacle of pristine filtration with our state-of-the-art design.
To sustain optimal filtration performance, vigilant monitoring of the filter bags is crucial. As impurities accumulate and form compact filter cakes, resulting in a differential pressure of 0.14-0.17 MPa, it becomes clear that bag replacement is imperative. During this pivotal maintenance phase, ensure the system is meticulously shut down, the pressure relief valve is cautiously opened, and the filter cover is gently removed. Once new bags are installed, the system is ready to resume its flawless operation. Our filter bags, designed for sustainability, can be cleaned and reused, though they should be replaced if significantly compromised to maintain consistent performance and reliability. This maintenance cycle is vital for efficiency and prolonged operational life in 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 innovative multi-bag filter system is expertly crafted with a quick-opening flange ring, firmly secured using bolt fastening technology. This ensures superior pressure resistance, offering you a robust and reliable solution designed for outstanding performance. The integrated booster spring mechanism guarantees smooth and effortless operation, making frequent filter bag changes a breeze. With this strategically designed system, you'll enjoy noticeably reduced downtime, remarkable productivity boosts, minimized worker strain, and overall operational efficiency enhancements.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Introducing an ingenious spring-balance mechanism crafted for easy, labor-efficient operation of the upper cover. It is smoothly adjustable from 0 to 105° as required, thanks to its sturdy yet simple support structure. Paired with a sleek clamshell design, the system ensures no liquid spillage when the lid is opened, optimizing space utilization and streamlining your operational workflow for exceptional efficiency.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our cutting-edge compression spring pressure piece ensures an impeccable 360° seal with the filter bag, completely eliminating any chance of side leakage. This innovative design features a reinforced filter bag capable of supporting the robust flower plate, enduring higher pressure while effectively reducing pressure loss, thus elevating filtration performance. We offer a wide array of customization options, with customer flow configurations ranging from 2 to 24 bags, meticulously tailored to accommodate your exact requirements and specifications.
Experience seamless and effortless filter bag changes with our state-of-the-art spring locking device, designed for ease of use and enhanced operational efficiency.
Our basket gasket is engineered to provide absolute leakage prevention, ensuring reliable and consistent performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide an extensive range of customizable options for inlet and outlet directions to ensure precise alignment with your installation requirements and user preferences. With a flexible flange diameter, adjustable from DN25 to DN250, our system guarantees seamless integration with your existing setup, delivering unmatched adaptability and performance enhancements to meet your unique needs.
Our expertly engineered bag filters embody the essence of precision engineering. These innovative solutions are meticulously crafted to effectively extract even the finest trace impurities from liquids. Serving as indispensable assets, these filters form the backbone of numerous industries, offering unmatched precision and steadfast reliability.
- Innovations in the Refined Chemicals Sector. Pioneering Excellence in Paint and Ink Filtration.
- Cutting-edge Innovations in the Oil & Gas Sector. Our solutions provide steadfast reliability, addressing the complex challenges of produced water filtration and the purification of well injection water with unparalleled expertise.
- Tailored Solutions for the Food & Beverage Industry. We offer expert filtration solutions that are perfectly tailored for beer and wine production, the clarification of juice concentrates, and ensuring pristine processing standards for soft drinks and bottled water.
- Precision in Automotive Manufacturing. Our solutions deliver enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and ensure superior finish and primer filtration. Additionally, we guarantee impeccable filtration for parts cleaning fluids.
- Applications in the Pulp & Paper Industry. We offer advanced coating filtration solutions, intricately tailored to meet the unique demands and challenges of the pulp and paper industry.
- Efficiency in the Machining Industry. We deliver superior filtration solutions designed to enhance the efficiency of machine tool coolant circulation, cleaning fluids, and the effective management of hydraulic and lubricating oils.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. is a luminary in the dynamic landscape of industrial precision filtration and self-cleaning filtration solutions. With a proud history of over a decade, our company exudes unmatched expertise in design and research & development. Utilizing state-of-the-art filtration technology, we offer an extensive selection of top-tier product resources. Our solutions are all-encompassing, turnkey filtration systems crafted to satisfy the multifaceted needs of our valued clientele.
SLOT takes pride in maintaining the esteemed ISO9001 quality management system certification and has achieved recognition from SGS, highlighting our steadfast commitment to excellence. We diligently follow international norms and specific industry guidelines, precisely tailoring our product designs and manufacturing procedures to fulfill each client's distinct requirements. Our passion lies in creating filtration equipment and components that define outstanding performance and exceptional quality.
SLOT automatic self-cleaning filter systems are the go-to 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 built strong and lasting partnerships with numerous esteemed industrial entities both domestically and internationally.
Celebrated for our remarkable product filter performance, cutting-edge manufacturing capabilities, and devoted professional services, SLOT is a symbol of excellence. For those seeking superior filter system performance, uncompromised quality, and exceptional service, SLOT is your reliable partner for the future.

Quality Management: At Hebei Slot Filter Technology Co., Ltd., quality management is integral to our ethos. We deploy comprehensive, rigorous quality control measures to uphold and exceed industry standards consistently. Trust in our unwavering commitment to excellence.
FAQ: Your inquiries are important to us. Discover detailed insights and solutions to frequently asked questions, ensuring clarity and a seamless experience with our products and services.
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. Before commencing full production, we offer a meticulously crafted sample to assure that all specifications are flawlessly met, aligning with our high standards.
Each shipment is subjected to detailed inspections, ensuring that our products meet impeccable quality standards, maintaining unwavering consistency.
3. What can you buy from us?
Explore our extensive range of meticulously crafted products, including the precision-crafted Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, along with reliable GravelPre-pack Screen, advanced Pipe-based screens, durable Perforated Pipes, and superior API/5CT Casing and Tubing. Each product is engineered to exceed expectations, ensuring optimal performance.
4. Why should you buy from us, not from other suppliers?
1. We offer a comprehensive suite of OEM & ODM solutions, seamlessly tailoring products to meet your unique needs.
2. Our expert team excels in bespoke design and development, transforming your ideas into tangible solutions through custom drawings.
3. With a cutting-edge R&D team, we are committed to delivering advanced and innovative solutions, consistently setting new industry benchmarks.
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, ensuring a seamless distribution experience.
Our acceptance of a wide range of payment currencies, including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensures smooth and trouble-free transactions.
For your convenience, we support various payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, providing utmost flexibility.
Communicate with us effortlessly in a variety of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian. We speak your language, making interaction seamless.
Aspiring to become an agent in your local market? Connect with us to explore thrilling opportunities and forge dynamic partnerships. Let's achieve growth together!