Introducing our Quick Open series of multi-bag filter housings, a remarkable innovation in filtration technology. These advanced units feature a state-of-the-art self-balancing V-clamp locking mechanism, setting a new standard and breaking away from conventional designs. This ingenious design allows for single-handed, effortless operation, making it the perfect choice for high-flow applications that demand frequent element replacements.
Experience reduced downtime with our superior design, leading to lowered operating costs and enhanced efficiency in batch processes.
Our system prioritizes safety and efficiency with a fully interlocked pressure release system, ensuring optimal performance in all conditions. Constructed with a robust, corrosion-free V-clamp and our unique, durable screw-drive mechanism, this housing promises years of reliable service to its users.
Elevate your filtration capabilities with our wide array of meticulously crafted filter-bag materials that are precision-engineered to meet diverse operational demands:
PP (Polypropylene): Exceptionally rated at 1-200µm, this flexible material withstands temperatures up to 70°C, offering versatility across a myriad of applications.
PE (Polyester): Known for its incredible durability, this material spans a range of 1-200µm and can withstand temperatures up to 120°C, catering to the most challenging and demanding environments.
Nylon: With an impressive filtration range of 25-800µm and high-temperature resistance up to 150°C, this material is engineered for the most challenging and strenuous operational conditions.
Discover the unparalleled capabilities of our Stainless Steel Multi-bag Filter Machine, epitomizing excellence in precision engineering. Dive into our assortment of Filter-Bag Numbers, each accompanied by their Detailed Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Dimensions are 180mmD x 810mmL; 3#: Dimensions are 102mmD x 210mmL; 4#: Dimensions are 102mmD x 380mmL. Our extensive selection caters to a wide range of filtration needs, providing customized solutions tailored to every requirement.

The multi-bag filter system is a marvel of modern engineering, meticulously crafted to transform the filtration landscape with unparalleled precision and efficiency. At the heart of this innovation is a cleverly positioned inlet beneath the filter bags, ingeniously guiding the filter medium upwards into the housing's upper chamber. From this elevated position, the medium is flawlessly directed downwards, navigating through the filter bags with pinpoint accuracy. This sophisticated mechanism captures impurities with exceptional finesse, ensuring the delivery of the purest filtrate. Discover the pinnacle of pristine filtration with our state-of-the-art design.
To ensure top-notch filtration performance, meticulous monitoring of the filter bags is paramount. As impurities accumulate and form dense filter cakes, causing a differential pressure range of 0.14-0.17 MPa, it is clear that bag replacement becomes essential. During this crucial maintenance phase, the system should be gently shut down, the pressure relief valve cautiously opened, and the filter cover carefully removed. With new bags in place, the system is primed to resume its superior operation. Our eco-friendly filter bags can be cleaned and reused, but should be replaced if significantly damaged to maintain optimal performance and reliability. This maintenance cycle is vital for sustaining efficiency and prolonging the operational lifespan 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 state-of-the-art multi-bag filter system is a masterpiece of engineering that features a quick-opening flange ring, meticulously secured with robust bolt fastening. This design ensures unmatched pressure resistance, delivering steadfast reliability and superior performance. The cutting-edge booster spring mechanism allows for effortless operation, making frequent filter bag changes an absolute breeze. Revel in the dramatic reduction of downtime, substantial productivity enhancements, minimized worker fatigue, and a significant boost in operational efficiency with this precisely engineered system, crafted for excellence.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveil the brilliance of our revolutionary spring-balance mechanism, which promises a seamless and labor-saving operation of the upper cover. With its smooth adjustability from 0 to 105°, the sleek clamshell design ensures zero liquid spills upon opening. This efficient structure is a marvel of spatial optimization, streamlining your workflow and maximizing the potential of every inch of your operational space.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
At the heart of our advanced system is the sophisticated compression spring pressure piece, which guarantees a flawless 360° seal with the filter bag, completely eliminating side leakage. The reinforced filter bag is crafted to support a durable flower plate, capable of withstanding higher pressures while minimizing pressure loss, thus enhancing filtration efficacy. We offer a range of customization options, providing customer flow configurations from 2 to 24 bags, precisely engineered to cater to your specific needs for superior performance.
Experience the ease of smooth, effortless filter bag changes with our innovative spring locking device, ensuring a seamless and uninterrupted workflow.
Crafted with precision, our basket gasket is designed to ensure absolute leakage prevention, delivering unwavering and dependable performance that you can trust.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a diverse suite of customizable inlet and outlet direction options, guaranteeing precise alignment with your installation needs and user preferences. The versatile flange diameter, adjustable from DN25 to DN250, assures perfect integration with your existing system, offering unparalleled adaptability and flexibility to meet your unique requirements.
Our expertly engineered bag filters are a testament to the pinnacle of precision engineering. Crafted with meticulous attention, they efficiently extract even the most minuscule trace impurities from liquids. These indispensable filters serve as the cornerstone across a spectrum of industries, offering unmatched precision and reliability that never falters.
- Refined Chemicals Sector: Unleashing the full potential of high-precision filtration to elevate the quality and purity of chemical products. Paint and Ink Filtration Excellence: Ensuring vibrant colors and flawless finishes, our filters set the standard in paint and ink filtration.
- Oil & Gas Sector Innovations: Leading the frontier with state-of-the-art filtration solutions that elevate efficiency and safety in the oil and gas sector. Providing reliable solutions for the complex challenges of produced water filtration and well injection water purification, ensuring optimal performance and environmental compliance.
- Food & Beverage Industry Solutions: Elevating quality and safety with tailored filtration for diverse food and beverage processing needs. Offering expert filtration tailored specifically for beer and wine production, juice concentrate clarification, and ensuring pristine processing of soft drinks and bottled water, maintaining exceptional quality and taste.
- Automotive Manufacturing Precision: Driving excellence with enhanced filtration solutions for spray coating pretreatment, electrophoretic paint processing, and ensuring a superior finish and primer filtration. 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, optimizing performance and precision in every application.
- Pulp & Paper Industry Applications: Delivering advanced coating filtration solutions designed for the unique and demanding needs of the pulp and paper industry. Providing advanced coating filtration solutions tailored to the unique demands of the pulp and paper industry, ensuring smooth and flawless production processes.
- Machining Industry Efficiency: Leading the way in enhancing tool performance and longevity through superior filtration technology. Delivering superior filtration to enhance the efficiency and performance of machine tool coolant circulation, cleaning fluids, and the effective management of hydraulic and lubricating oils, boosting overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and excellence within the ever-evolving sphere of industrial precision filtration and self-cleaning filtration solutions. With a prestigious history extending over ten remarkable years, our company is synonymous with unparalleled expertise in both design and research & development. Harnessing the power of state-of-the-art filtration technology, we provide an extensive array of premium product resources. Our comprehensive solutions offer complete, tailor-made filtration systems designed to meet the intricate and varied demands of our discerning clientele.
At SLOT, we take immense pride in having earned the revered ISO9001 quality management system certification and accolades from SGS, underscoring our unwavering dedication to excellence. We rigorously adhere to international standards and specific industry regulations, crafting custom product designs and manufacturing processes to meet the distinct needs of each client. Our relentless dedication ensures the production of filtration equipment and components that deliver outstanding performance and unmatched quality.
Our SLOT automatic self-cleaning filter systems are the industry standard for excellence across a vast array of sectors. These include petrochemicals, fine chemicals, the energy and power industries, water treatment, automotive manufacturing, the food and beverage sector, and metal processing. We've fostered strong and enduring partnerships with numerous distinguished industrial enterprises, both domestically and internationally.
Renowned for our superior product filter performance, pioneering manufacturing capabilities, and unwavering commitment to professional services, SLOT epitomizes excellence. For those seeking unrivaled filter system performance, impeccable quality, and exemplary service, SLOT is your trusted partner in achieving sustained success.

Quality Management
FAQ
1. Who are we?
Established in the vibrant hub of Hebei, China, in 2014, we are Hebei Slot Filter Technology Co., Ltd., a trailblazer in innovative solutions. Our advanced technologies have found resonance across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dedicated team of 11 to 50 skilled professionals is driven by a relentless pursuit of excellence and a passion for achieving extraordinary results.
2. How can we guarantee quality?
Our steadfast dedication is to ensure unparalleled quality. Prior to commencing full-scale production, we conduct rigorous sample evaluations to guarantee flawless adherence to standards.
Every shipment is subjected to meticulous inspections, maintaining our stringent quality standards and unparalleled consistency with impeccable precision.
3. What can you buy from us?
Explore our vast array of meticulously crafted products such as the precision-engineered Johnson Screen, resilient Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, state-of-the-art Pipe-based screens, robust Perforated Pipes, and premium API/5CT Casing and Tubing. Each product is engineered to surpass performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide a comprehensive range of OEM & ODM solutions, meticulously customizing products to suit your specific needs.
2. Our expert team is proficient in custom design and development, transforming your concepts into reality with tailored drawings.
3. With our cutting-edge R&D team, we deliver innovative solutions and establish new benchmarks in the industry.
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;
We accept a diverse range of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring a seamless and convenient transaction process.
For optimal convenience, we support a variety of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, providing you with ultimate ease.
Communicate with us effortlessly in numerous 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 unearth exciting opportunities together.