Introducing the Quick Open Series: Experience the pinnacle of engineering excellence with our cutting-edge multi-bag filter housings. Featuring an innovative self-balancing V-clamp locking mechanism, this series redefines convenience with its seamless single-handed operation. Perfectly engineered for high-flow applications, it stands as your ultimate choice for efficiency and effortless usability. Expertly designed to excel in scenarios necessitating frequent replacements, this state-of-the-art system is a testament to engineering prowess. Its design minimizes downtime significantly, optimizing functionality while cutting down operating costs. Immerse yourself in unparalleled efficiency and cost-effectiveness, ensuring your operations remain consistently smooth and flawless.
Revolutionizing safety and efficiency, our fully interlocked pressure release mechanism delivers absolute peace of mind in every situation. The robust, corrosion-resistant V-clamp construction, enhanced with an innovative screw-drive mechanism, assures you years of reliable service, making it indispensable for the discerning user.
Elevate your filtration experience with our extensive array of high-performance filter-bag materials, each meticulously engineered to meet diverse and specific requirements:
PP (Polypropylene): Rated from 1-200µm, this flexible material endures temperatures up to 70°C, showcasing its versatility across a multitude of applications and settings.
PE (Polyester): A strong material offering a range of 1-200µm, capable of withstanding temperatures up to 120°C, making it perfect for the toughest and most demanding applications.
Nylon: With a remarkable range of 25-800µm and a high-temperature tolerance of up to 150°C, this material is designed for the most intense and challenging environments.
Discover the innovative prowess of our Stainless Steel Multi-bag Filter Machine, a paragon of precision engineering and excellence. Explore our comprehensive Filter-Bag Numbers alongside their Detailed Specifications: 1#: Dimensions of 180mmD x 410mmL; 2#: Measures 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: Dimensions of 102mmD x 380mmL, ensuring a wide range of filtration needs are met with tailored solutions for every application.
The multi bag filter system is a masterpiece of sophisticated engineering, meticulously designed to revolutionize the filtration process with unparalleled precision. Featuring an inlet placed strategically beneath the filter bags, the system gracefully introduces the filter medium, which is then guided upward with seamless elegance into the housing's upper chamber. In a carefully orchestrated descent, the system navigates the medium through the filter bags with exceptional finesse. This advanced methodology ensures that impurities are expertly captured, leaving only the most pristine filtrate to exit the system with unmatched grace and efficiency. Experience the ultimate in high-performance filtration with our cutting-edge design, where innovation meets excellence.
Maintaining peak filtration performance requires diligent attention to the filter bags. As impurities accumulate and form dense filter cakes, creating a differential pressure of 0.14-0.17 MPa, bag replacement becomes essential. During this critical maintenance stage, the system should be carefully shut down, the pressure relief valve gently opened, and the filter cover delicately removed. Once fresh bags are installed, the system is primed to resume its impeccable function. Our filter bags are crafted for sustainability, allowing for cleaning and reuse; however, they should be replaced if significantly compromised to ensure ongoing efficiency and dependability. This maintenance routine is crucial for sustained productivity and the extended lifespan of your filtration system.
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 groundbreaking multi-bag filter system boasts a quick-opening flange ring that is expertly secured using bolt fastening. This ensures unparalleled pressure resistance, promising robust and reliable performance. The integrated booster spring mechanism facilitates effortless operation, making it the ideal solution for frequent filter bag changes. Benefit from significantly reduced downtime, remarkable productivity enhancements, minimized worker fatigue, and a notable boost in operational efficiency with this meticulously engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveiling a pioneering spring-balance mechanism that simplifies the operation of the upper cover, allowing for smooth and labor-saving adjustments from 0 to 105° as required. This robust yet straightforward support structure, paired with a refined clamshell design, ensures no liquid spillage when the lid is opened, enhancing space utilization and streamlining your workflow for optimal efficiency.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our state-of-the-art compression spring pressure piece provides a flawless 360° seal with the filter bag, effectively preventing any leakage. The reinforced filter bag is designed to support the durable flower plate, withstanding higher pressure while minimizing pressure loss, thereby elevating filtration performance. With a wide array of customization options, we offer customer flow configurations ranging from 2 to 24 bags, expertly tailored to your exact specifications.
Experience seamless and effortless filter bag changes with our advanced spring locking device, crafted for superior ease of use.
Our basket gasket is skillfully engineered to prevent any leakage, ensuring dependable performance and peace of mind.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a spectrum of customizable options for inlet and outlet directions, enabling precise alignment with your installation demands and user preferences. The adaptable flange diameter, adjustable from DN25 to DN250, promises seamless integration with your existing system, offering unrivaled versatility and convenience.
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. shines as a beacon of innovation and mastery in the dynamic realm of industrial precision filtration and self-cleaning filtration solutions. With an illustrious legacy spanning over a decade, our company demonstrates unmatched expertise in design and research & development. By leveraging state-of-the-art filtration technology, we deliver an expansive array of premium product resources. Our offerings encompass comprehensive, turnkey filtration solutions crafted to meet the diverse and demanding needs of our esteemed clientele.
SLOT proudly upholds the prestigious ISO9001 quality management system certification and has earned accolades from SGS, emphasizing our steadfast commitment to excellence. We strictly adhere to international standards and specific industry regulations, meticulously tailoring our product designs and manufacturing processes to align with each client's unique specifications. Our passion is devoted to creating filtration equipment and components that embody outstanding performance and superior quality.
Our SLOT automatic self-cleaning filter systems are the preferred choice across a wide spectrum of industries. These include petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have established strong and lasting partnerships with numerous esteemed industrial enterprises both domestically and internationally.
Celebrated for our exceptional product filter performance, cutting-edge manufacturing capabilities, and dedicated professional services, SLOT is synonymous with excellence. For those seeking superior filter system performance, uncompromised quality, and distinguished service, SLOT stands as your long-term trusted partner.

Quality Management: Our unwavering commitment to quality ensures that every product is a testament to perfection-meticulously crafted and rigorously tested to exceed industry standards.
FAQ
1. Who are we?
Established in the thriving heart of Hebei, China, in 2014, we are Hebei Slot Filter Technology Co., Ltd. Our pioneering innovations have profoundly impacted North America (40%), Western Europe (30%), South Asia (10%),
and have expanded into Africa (10%) and the Middle East (10%). Our dedicated team of 11 to 50 professionals is passionately driven to achieve excellence at every junction.
2. How can we guarantee quality?
Our steadfast promise is to deliver quality without compromise. By offering a sample prior to full production, we ensure flawless conformance to your expectations.
Each shipment is meticulously inspected to meet our exceptionally high standards, guaranteeing consistent excellence in every delivery.
3. What can you buy from us?
Dive into our extensive range of high-precision products, including the expertly engineered Johnson Screen, resilient Bridge Slotted Well Screens, and Sand Control Well Screens, alongside GravelPre-pack Screen, cutting-edge Pipe-based screens, durable Perforated Pipes, and top-tier API/5CT Casing and Tubing. Each item is crafted to surpass your highest expectations.
4. Why should you buy from us, not from other suppliers?
1. We offer a complete suite of OEM & ODM solutions, seamlessly tailor-made to meet your unique requirements with precision.
2. Our adept team excels in custom design and development, transforming your innovative concepts into reality through precise custom drawings.
3. Our pioneering R&D team is dedicated to delivering cutting-edge solutions, consistently raising industry standards with our innovative offerings.
5. What services can we provide?
We offer versatile delivery solutions such as FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our acceptance of multiple payment currencies, including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensures a seamless transaction process.
We offer a wide range of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, providing you with unmatched convenience.
Communicate effortlessly in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Considering becoming an agent in your local market? Contact us to explore thrilling opportunities together.