Introducing the Quick Open Series: Embark on a journey to the zenith of engineering sophistication with our multi-bag filter housings. These marvels boast an avant-garde, self-balancing V-clamp locking mechanism, symbolizing a revolutionary leap in design. Experience the pinnacle of convenience with its effortlessly smooth single-handed operation, making it the quintessential choice for high-flow applications. For those in pursuit of efficiency and ease, this series stands unequaled. This meticulously engineered system is a testament to modern craftsmanship, expertly designed for scenarios requiring frequent replacements. It shines as a beacon of efficiency, reducing downtime dramatically and optimizing functionality to cut operating expenses. Experience seamless batch processing and the ultimate fusion of cost-effectiveness and efficiency, ensuring your operations run flawlessly without interruption.
Elevate your operations with our ground-breaking safety and efficiency features. The fully interlocked pressure release mechanism offers steadfast peace of mind in every application. With a formidable, corrosion-resistant V-clamp construction, bolstered by a unique screw-drive mechanism, it ensures years of dependable service. This essential tool is indispensable for users with discerning standards.
Transform your filtration journey with our extensive array of precise and robust filter-bag materials. Each is meticulously crafted to meet specific, demanding requirements:
PP (Polypropylene): Rated perfectly at 1-200µm, this versatile material withstands temperatures up to 70°C, making it an adaptable choice across a wide array of settings and applications.
PE (Polyester): This robust option, rated at 1-200µm, withstands temperatures of up to 120°C, rendering it ideal for the most rigorous and demanding scenarios.
Nylon: With an extensive range of 25-800µm and an impressive high-temperature tolerance of up to 150°C, this material is crafted for the most challenging and strenuous environments.
Uncover the exceptional potential of our Stainless Steel Multi-bag Filter Machine, a true masterpiece of excellence and precision in engineering. Explore our comprehensive range of 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#: With dimensions of 102mmD x 380mmL, our diverse selection addresses a vast spectrum of filtration requirements, providing tailor-made solutions for every unique need.
The multi bag filter system is a masterpiece of ingenious engineering, meticulously crafted to elevate the filtration process with unmatched precision and efficiency. This state-of-the-art system features an inlet strategically positioned below the filter bags, allowing the filter medium to enter gracefully and flow seamlessly upwards into the housing's upper chamber. Once there, the system orchestrates a precise descending journey, expertly guiding the medium through the filter bags. This refined technique ensures that impurities are skillfully captured, leaving behind only the purest filtrate, which exits with exceptional grace and efficiency. Discover the pinnacle of pristine filtration with our innovative design, setting new standards in filtration technology.
To maintain optimal filtration performance, vigilant monitoring of the filter bags is essential. As impurities accumulate, forming compact filter cakes and resulting in a differential pressure of 0.14-0.17 MPa, it indicates that replacing the bags is necessary. During this critical maintenance phase, ensure the system is meticulously shut down, carefully open the pressure relief valve, and gently remove the filter cover. Once new bags are installed, the system is ready to resume its impeccable operation. Our filter bags are designed for sustainability and can be cleaned and reused; however, they should be replaced if significantly compromised to maintain consistent performance and reliability. This maintenance cycle is crucial for efficiency and extends 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 innovative multi-bag filter system is a masterpiece of engineering, featuring a quick-opening flange ring, expertly secured with bolt fastening. This design guarantees exceptional pressure resistance, providing peace of mind with its robust and reliable operation. The integrated booster spring mechanism ensures effortless and smooth operation, making it the ideal solution for frequent filter bag changes. Experience dramatically reduced downtime, substantial productivity gains, minimized worker strain, and overall enhanced operational efficiency with this strategically crafted system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Introducing our revolutionary spring-balance mechanism, a brilliant innovation that facilitates effortless and labor-efficient operation of the upper cover. Seamlessly adjustable from 0 to 105°, this sturdy yet simple support structure, paired with a sleek clamshell design, ensures no liquid spillage upon opening the lid. This perfect harmony of form and function optimizes space utilization and streamlines your operational workflow, making it a game-changer in the industry.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our state-of-the-art compression spring pressure piece delivers a flawless 360° seal with the filter bag, ensuring zero side leakage. The reinforced filter bag is engineered to support the robust flower plate, withstanding higher pressure while minimizing pressure loss, thus elevating filtration performance. With a plethora of customization options, we provide customer flow configurations ranging from 2 to 24 bags, expertly tailored to meet your exact specifications.
Experience seamless and effortless filter bag changes with our advanced spring locking device, designed for ease and efficiency at every stage.
Our basket gasket is meticulously crafted for absolute leakage prevention, guaranteeing consistent and reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We proudly offer a diverse range of customizable options for inlet and outlet directions, allowing for precise alignment with your installation requirements and user preferences. The flexible flange diameter, adjustable from DN25 to DN250, ensures seamless integration with your existing system, providing unparalleled adaptability and convenience.
Our expertly engineered bag filters epitomize the zenith of precision engineering. They are meticulously crafted to efficiently extract even the most minute trace impurities from liquids. These indispensable filters form the backbone of countless industries, delivering unparalleled precision and unwavering reliability in every operation.
- Refined Chemicals Sector. Paint and Ink Filtration Excellence.
- Oil & Gas Sector Innovations. Providing robust and reliable solutions to tackle the complex challenges of produced water filtration and well injection water purification, ensuring optimal performance and efficiency.
- Food & Beverage Industry Solutions. We offer expert filtration solutions meticulously tailored for beer and wine production, juice concentrate clarification, and ensuring the pristine processing of soft drinks and bottled water, guaranteeing purity and quality.
- Automotive Manufacturing Precision. Delivers enhanced performance in automotive spray coating pretreatment and electrophoretic paint processing, ensuring a superior finish and primer filtration. Our solutions also guarantee impeccable filtration for parts cleaning fluids, elevating overall manufacturing excellence.
- Pulp & Paper Industry Applications. Providing sophisticated coating filtration solutions meticulously tailored to meet the unique demands of the pulp and paper industry, enhancing production quality and efficiency.
- Machining Industry Efficiency. Delivering superior filtration to dramatically enhance the efficiency of machine tool coolant circulation, cleaning fluids, and the meticulous management of hydraulic and lubricating oils, ensuring optimal operational performance.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. emerges as a luminary of innovation and expertise in the dynamic realm of industrial precision filtration and self-cleaning filtration solutions. Boasting an illustrious legacy spanning over a decade, our company exemplifies unmatched prowess in design and research & development. By leveraging state-of-the-art filtration technology, we offer an expansive suite of top-tier product resources. Our solutions are comprehensive, turnkey filtration systems meticulously crafted to address the varied and sophisticated demands of our valued clients.
SLOT takes pride in maintaining the esteemed ISO9001 quality management system certification and has earned recognition from SGS, highlighting our steadfast commitment to excellence. We diligently comply with international standards and specific industry regulations, precisely tailoring our product designs and manufacturing processes to align with each client's distinct specifications. Our passion is centered on creating filtration equipment and components that define outstanding performance and superior quality.
Our SLOT automatic self-cleaning filter systems are the top choice across a diverse range of industries, including petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have cultivated robust and enduring partnerships with numerous esteemed industrial enterprises both domestically and internationally.
Renowned for exceptional product filter performance, cutting-edge manufacturing capabilities, and dedicated professional services, SLOT is synonymous with excellence. For those in pursuit of unparalleled filter system performance, uncompromised quality, and distinguished service, SLOT stands as your trusted partner for the long haul.

Quality Management: At Hebei Slot Filter Technology Co., Ltd., quality is not just a statement-it's our unwavering commitment. We adhere to the highest standards, ensuring each product passes rigorous checks. This dedication to quality assures that our clients receive only the finest, most reliable solutions, guaranteeing satisfaction and long-term performance.
FAQ
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. By offering a sample before full production, we ensure standards are flawlessly aligned, giving you peace of mind.
Every shipment undergoes meticulous inspections to guarantee that our high-quality standards and consistency are impeccably upheld.
3. What can you buy from us?
Discover our vast array of meticulously crafted products. Our range includes the precision-engineered Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, cutting-edge Pipe-based screens, durable Perforated Pipes, and superior API/5CT Casing and Tubing, all designed to exceed expectations and deliver unmatched 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 fit your unique requirements with precision.
2. Our expert team excels in bespoke design and development, transforming your concepts into reality with custom drawings.
3. With an innovative R&D team, we are committed to providing advanced solutions, continuously setting industry benchmarks with cutting-edge technology.
5. What services can we provide?
We offer flexible delivery options including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our acceptance of diverse payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF ensures a seamless transaction experience for every client.
For your convenience, we support a wide range of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow; prioritizing ease and accessibility.
Communicate with us effortlessly in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian. We are here to assist you seamlessly, breaking language barriers to foster global collaboration.
Aspiring to become an agent in your local market? Connect with us, and let's explore exhilarating opportunities together, building a mutually beneficial partnership that drives success in your region.