Introducing the Quick Open Series: Delve into the zenith of engineering brilliance with our multi-bag filter housings, featuring an avant-garde self-balancing V-clamp locking mechanism. This series signifies a groundbreaking advancement in design, offering unmatched convenience with its effortless single-handed operation. Ideally crafted for high-flow applications, it stands as the premier choice for those seeking efficiency coupled with ease of use. Meticulously crafted for situations demanding frequent replacements, this sophisticated system is a marvel of engineering, designed to significantly minimize downtime. By optimizing functionality, it substantially reduces operating expenses, guaranteeing a smooth and uninterrupted batch processing journey. Revel in the ultimate synergy of efficiency and cost-effectiveness, ensuring your operations remain flawless.
Redefining safety and efficiency, our fully interlocked pressure release mechanism provides unwavering peace of mind in every scenario. The formidable, corrosion-resistant V-clamp construction, enhanced by an exclusive screw-drive mechanism, promises years of unwavering service, establishing its role as an essential tool for discerning users.
Enhance your filtration experience with our diverse selection of precise and resilient filter-bag materials, each expertly crafted to satisfy specific requirements:
PP (Polypropylene): Perfectly rated at 1-200µm, this adaptable material withstands temperatures up to 70°C, proving versatile across a multitude of settings and applications.
PE (Polyester): This robust material offers a wide range of 1-200µm and can endure temperatures reaching 120°C, making it ideal for the most rigorous and demanding applications.
Nylon: Showcasing an impressive range of 25-800µm, with a remarkable high-temperature tolerance of up to 150°C, this material is tailored for the most challenging and strenuous environments.
Uncover the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, a masterpiece of excellence and precision engineering. Delve into 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#: With dimensions of 102mmD x 380mmL, our diverse selection caters to a vast range of filtration requirements, providing 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 features a quick-opening flange ring, masterfully secured with bolt fastening. This ensures exceptional pressure resistance, instilling confidence in its robust and reliable performance. The integrated booster spring mechanism guarantees effortless and fluid operation, making it the perfect solution for frequent filter bag changes. Experience significantly reduced downtime, exceptional productivity boosts, minimized worker strain, and overall enhanced operational efficiency with this strategically designed system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Introducing an ingenious spring-balance mechanism that allows effortless and labor-efficient operation of the upper cover, smoothly adjustable from 0 to 105° as needed. This sturdy yet simple support structure, combined with a sleek clamshell design, ensures no liquid spillage when the lid is opened, optimizing space utilization and streamlining your operational workflow.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our cutting-edge compression spring pressure piece delivers an impeccable 360° seal with the filter bag, completely preventing any side leakage. The reinforced filter bag is engineered to support the robust flower plate, enduring higher pressure while reducing pressure loss, thereby elevating filtration performance. With a multitude of customization options, we offer customer flow configurations ranging from 2 to 24 bags, meticulously tailored to your precise requirements.
Experience seamless and effortless filter bag changes with our advanced spring locking device
Our basket gasket is engineered for absolute leakage prevention, ensuring reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We offer a range of customizable options for inlet and outlet directions, allowing precise alignment with your installation requirements and user preferences. The flexible flange diameter, adjustable from DN25 to DN250, ensures flawless integration with your existing system, providing unmatched 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, providing unparalleled precision and unwavering reliability.
- Refined Chemicals Sector. Paint and Ink Filtration Excellence.
- Oil & Gas Sector Innovations. Providing reliable solutions for the complex challenges of produced water filtration and well injection water purification.
- Food & Beverage Industry Solutions. Offering expert filtration tailored for beer and wine production, juice concentrate clarification, and ensuring the pristine processing of soft drinks and bottled water.
- Automotive Manufacturing Precision. Delivers enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. Our solutions also ensure impeccable filtration for parts cleaning fluids.
- Pulp & Paper Industry Applications. Providing advanced coating filtration solutions tailored to the unique demands of the pulp and paper industry.
- Machining Industry Efficiency. Delivering superior filtration to enhance the efficiency of machine tool coolant circulation, cleaning fluids, and the management of hydraulic and lubricating oils.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and expertise in the ever-evolving world of industrial precision filtration and self-cleaning filtration solutions. With an impressive legacy that spans over a decade, our company showcases unparalleled prowess in design and research & development. By harnessing cutting-edge filtration technology, we present a vast array of premium product resources. Our offerings are comprehensive, turnkey filtration solutions designed to meet the diverse and discerning demands of our esteemed clientele.
SLOT is proud to uphold the prestigious ISO9001 quality management system certification and has garnered recognition from SGS, underscoring our unwavering dedication to excellence. We rigorously adhere to international standards and specific industry regulations, meticulously customizing our product designs and manufacturing processes to meet each client's unique specifications. Our passion is focused on producing filtration equipment and components that epitomize outstanding performance and superior quality.
Our SLOT automatic self-cleaning filter systems are the preferred choice across a vast array of industries. These include petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged strong and enduring partnerships with a multitude of esteemed industrial enterprises both within our nation and on the international stage.
Renowned for our exceptional product filter performance, state-of-the-art manufacturing capabilities, and dedicated professional services, SLOT is synonymous with excellence. For those in pursuit of superior filter system performance, uncompromised quality, and distinguished service, SLOT stands as your trusted partner for the long term.

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. 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 validate standards by providing a sample before initiating full production to ensure everything is flawlessly aligned.
Each shipment undergoes detailed inspections, ensuring our high-quality standards and unwavering consistency are met impeccably.
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 deliver a comprehensive suite of OEM & ODM solutions, tailoring products to fit your distinctive needs seamlessly.
2. Our skilled team is proficient in bespoke design and development, turning your concepts into reality through 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 provide 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 includes USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF; ensuring a smooth 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.