Introducing the Quick Open series of multi-bag filter housings, featuring an innovative self-balancing V-clamp locking mechanism that signifies a true breakthrough from conventional designs. This engineering marvel allows for single-handed, user-friendly operation, making it a perfect choice for applications with high flow rates, where efficiency is paramount.
Designed for scenarios requiring frequent element change-outs, it minimizes downtime and significantly reduces operating costs, ensuring batch processes run seamlessly.
Experience heightened efficiency with a fully-interlocked pressure release system, guaranteeing safety and reliability under all conditions. Built to last, this housing boasts a rugged, corrosion-resistant V-clamp and an exclusive screw-drive mechanism, offering years of dependable service.
Elevate your filtration experience with our wide range of precise and durable filter-bag materials, each expertly crafted to meet the most specific demands:
PP (Polypropylene): Perfectly rated for 1-200µm filtration, this versatile material withstands temperatures up to 70°C, making it ideal for a wide array of applications across various industries.
PE (Polyester): This robust material provides a broad range of 1-200µm and can tolerate temperatures up to 120°C, ensuring suitability for the most rigorous and challenging applications.
Nylon: With an impressive capacity for 25-800µm, and high-temperature resilience up to 150°C, this material is designed for the most demanding and intensive environments.
Discover unparalleled excellence with our state-of-the-art Stainless Steel Multi-bag Filter Machine, a beacon of precision engineering and superior performance. Explore our assortment of Filter-Bag Numbers with their Detailed Specifications: 1#: Dimensioned at 180mmD x 410mmL; 2#: Dimensioned at 180mmD x 810mmL; 3#: Dimensioned at 102mmD x 210mmL; 4#: Dimensioned at 102mmD x 380mmL. Our diverse selection meets a wide range of filtration requirements, offering tailored solutions to perfectly match every need.

The multi bag filter system stands as a testament to cutting-edge innovation, meticulously crafted to elevate the filtration experience with unrivaled precision and efficiency. At its core, the system features an ingeniously positioned inlet beneath the filter bags, skillfully directing the filter medium upwards into the refined confines of the housing's upper chamber. From this elevated position, it seamlessly channels the flow downward with extraordinary accuracy, expertly maneuvering through the filter bags. This sophisticated journey adeptly captures and holds impurities, ensuring the delivery of exceptionally pure filtrate with unmatched elegance and efficiency. Immerse yourself in the pinnacle of advanced filtration technology with our state-of-the-art design, where purity meets perfection.
To sustain the pinnacle of filtration efficiency, vigilant monitoring of the filter bags is paramount. As impurities accumulate, forming dense filter cakes and resulting in a differential pressure range of 0.14-0.17 MPa, it signals the necessity for timely bag replacement. During this critical maintenance phase, ensure that the system is carefully powered down, the pressure relief valve is gently opened, and the filter cover is delicately removed. Once fresh bags are securely installed, the system is primed to resume its flawless operation. Our filter bags, embracing eco-friendly principles, can be effectively cleaned and reused to extend their lifespan. However, if significantly impaired, replacement is essential to maintain consistent performance and unwavering reliability. Adhering to this meticulous maintenance cycle is crucial for achieving optimal efficiency and extended operational longevity 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 state-of-the-art multi-bag filter system is equipped with a cutting-edge quick-opening flange ring, expertly secured with robust bolt fastening. This impeccable design assures exceptional pressure resistance, offering unmatched reliability and outstanding performance. The innovative booster spring mechanism facilitates effortless operation, transforming frequent filter bag changes into a seamless task. Witness a remarkable reduction in downtime and significant boosts in productivity, as well as minimized worker fatigue. Experience a substantial uplift in operational efficiency with this meticulously engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Uncover the brilliance of our groundbreaking spring-balance mechanism, delivering seamless and effortless upper cover operation. Its fluid adjustability from 0 to 105° supports a sleek, clamshell design that guarantees zero liquid spills upon opening. This efficient structure optimizes spatial utilization and streamlines your workflow, maximizing every inch of your operational space to the fullest.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece ensures an impeccable 360° seal with the filter bag, completely eradicating side leakage. The reinforced filter bag is crafted to support the durable flower plate, enabling it to withstand higher pressures while minimizing pressure loss, thereby significantly enhancing filtration efficacy. With a multitude of customization options, we offer customer flow configurations ranging from 2 to 24 bags, precisely engineered to fulfill your specific requirements.
Experience smooth and effortless filter bag changes with our pioneering spring locking device, ensuring a seamless workflow.
Our basket gasket is meticulously crafted to guarantee absolute leakage prevention, providing unwavering and dependable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We present a versatile suite of customizable inlet and outlet direction options, ensuring precise alignment with your installation requirements and user preferences. The adaptable flange diameter, adjustable from DN25 to DN250, guarantees perfect integration with your existing system, offering unmatched adaptability and flexibility.
Our expertly engineered bag filters stand as a testament to the zenith of precision engineering. Meticulously crafted, they efficiently remove even the tiniest impurities from liquids. These indispensable filters are the foundation across a wide range of industries, providing unmatched precision and reliability that remain unwavering.
- Refined Chemicals Sector: Harnessing the full potential of high-precision filtration to substantially elevate the quality and purity of chemical products, setting new industry standards. Paint and Ink Filtration Excellence: Guaranteeing vibrant colors and impeccable finishes, our filters establish the benchmark in paint and ink filtration, ensuring consistent excellence.
- Oil & Gas Sector Innovations: Pioneering the forefront with cutting-edge filtration solutions that significantly enhance efficiency and safety in the oil and gas sector, redefining industry norms. Offering steadfast solutions for the intricate challenges of produced water filtration and well injection water purification, ensuring optimal performance and strict environmental compliance.
- Food & Beverage Industry Solutions: Advancing quality and safety through precise filtration tailored for a wide array of food and beverage processing needs, ensuring unmatched standards. Providing expert filtration meticulously designed for beer and wine production, juice concentrate clarification, and assuring pristine processing of soft drinks and bottled water, preserving exceptional quality and taste.
- Automotive Manufacturing Precision: Pioneering excellence with refined filtration solutions for spray coating pretreatment, electrophoretic paint processing, and guaranteeing a superior finish and primer filtration. Delivers enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. Additionally, our solutions ensure flawless filtration for parts cleaning fluids, optimizing both performance and precision in every application.
- Pulp & Paper Industry Applications: Offering advanced coating filtration solutions tailored specifically to the unique and challenging needs of the pulp and paper industry, ensuring seamless and flawless production processes. Providing advanced coating filtration solutions custom-designed to meet the distinctive demands of the pulp and paper industry, guaranteeing smooth and impeccable production processes.
- Machining Industry Efficiency: Leading the industry in enhancing tool performance and longevity through cutting-edge filtration technology, driving superior productivity. Delivering unparalleled filtration to boost the efficiency and performance of machine tool coolant circulation, cleaning fluids, and the proficient management of hydraulic and lubricating oils, significantly enhancing overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of excellence in the constantly evolving world of industrial precision filtration and self-cleaning filtration solutions. With a rich and illustrious history of over a decade, our company showcases unrivaled expertise in both design and research & development. By harnessing cutting-edge filtration technology, we present a diverse array of high-quality product resources. Our solutions are comprehensive and meticulously crafted, delivering turnkey filtration systems that are meticulously tailored to meet the intricate and nuanced demands of our esteemed clients.
At SLOT, we take pride in upholding the prestigious ISO9001 quality management system certification and have been lauded by SGS for our unwavering commitment to superior quality. We rigorously adhere to international standards and industry-specific regulations, expertly customizing our product designs and manufacturing processes to meet each client's unique needs. Our dedication is unwavering, focusing on the creation of filtration equipment and components that offer exceptional performance and unmatched quality.
Our SLOT automatic self-cleaning filter systems are the definitive choice for a vast array of industries. These industries include petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage production, and metal processing. We have established strong and enduring partnerships with numerous esteemed industrial enterprises, both nationally and internationally.
Renowned for our superior product filter performance, state-of-the-art manufacturing prowess, and dedicated professional services, SLOT has become a hallmark of excellence. For those seeking unparalleled filter system performance, outstanding quality, and exemplary service, SLOT is your steadfast partner on the path to lasting success.

Quality Management
FAQ
1. Who are we?
Founded in the vibrant center of Hebei, China, in 2014, we are Hebei Slot Filter Technology Co., Ltd., an emblem of groundbreaking innovation in filtration technology. Our advanced solutions powerfully reverberate across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dedicated team of 11 to 50 passionate professionals is driven by a commitment to achieving the extraordinary with precision.
2. How can we guarantee quality?
Our staunch commitment is rooted in delivering superior quality. Pre-production, we conduct rigorous sample evaluations to ensure seamless and flawless alignment with our standards.
Every shipment is subject to thorough inspections, ensuring our stringent quality standards and unparalleled consistency are maintained with exceptional precision.
3. What can you buy from us?
Explore our comprehensive array of finely crafted products, featuring the precision-engineered Johnson Screen, robust Bridge Slotted Well Screens, and the Sand Control Well Screens, along with GravelPre-pack Screen, state-of-the-art Pipe-based screens, durable Perforated Pipes, and top-tier API/5CT Casing and Tubing. Each product is meticulously designed to surpass performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide a complete suite of OEM & ODM solutions, effortlessly customizing products to match your specific needs.
2. Our skilled team excels in bespoke design and development, adeptly transforming your concepts into reality with tailor-made drawings.
3. Armed with a pioneering R&D team, we deliver state-of-the-art solutions, setting novel industry standards.
5. What services can we provide?
We offer a variety of flexible delivery options including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accommodate a broad spectrum of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, facilitating a smooth and seamless transaction process.
For your utmost convenience, we support a diverse range of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, offering you supreme flexibility.
Engage with us effortlessly in a multitude 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 and let's explore exciting opportunities together.