Introducing our Quick Open series multi-bag filter housings, an evolution in design that boasts a self-balancing V-clamp locking mechanism, representing a revolutionary leap from traditional methods. This ingenious design allows for single-handed, user-friendly operation, making it the quintessential choice for high flow rate applications requiring swift and frequent element change-outs.
Enjoy the benefits of minimal downtime, which not only reduces operating costs but also enhances the fluidity and efficiency of batch processes.
Our design significantly boosts efficiency with a fully-interlocked pressure release system that guarantees safety under all operational conditions. Its robust, corrosion-resistant V-clamp, coupled with a proprietary screw-drive mechanism, ensures that the housing delivers unparalleled longevity and reliable service to users.
Elevate your filtration system with our wide array of meticulously engineered filter-bag materials, each crafted to meet specific filtration needs with precision and durability:
PP (Polypropylene): Rated ideally between 1-200µm, this versatile material withstands temperatures up to 70°C, making it suitable for various settings and applications.
PE (Polyester): Known for its durability, this material supports a broad filtration range of 1-200µm and withstands temperatures up to 120°C, perfect for the most demanding applications.
Nylon: With an impressive filtration range of 25-800µm and exceptional high-temperature resistance up to 150°C, this material is designed for the most challenging environments.
Discover the advanced capabilities of our Stainless Steel Multi-bag Filter Machine, an epitome of excellence and precise engineering. Delve into our Filter-Bag Numbers and 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 diverse selection caters to a broad spectrum of filtration needs, offering custom solutions for any requirement.

The multi bag filter system represents the pinnacle of modern filtration technology, masterfully engineered to transform your filtration experience with remarkable precision and efficiency. Featuring an intelligently placed inlet beneath the filter bags, it smoothly guides the filter medium upwards into the housing's upper chamber. From this optimal position, the medium is gracefully channeled downwards with flawless precision, navigating through the filter bags with ease. This sophisticated process expertly traps impurities, delivering the purest filtrate possible with unmatched elegance. Discover the height of pristine filtration with our state-of-the-art design.
To ensure peak filtration performance, vigilant monitoring of the filter bags is paramount. 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 vital. During this important maintenance phase, make sure to carefully shut down the system, gently open the pressure relief valve, and delicately remove the filter cover. Once new bags are installed, the system is poised to resume its flawless operation. Our filter bags, crafted with eco-consciousness, can be cleaned and reused but should be replaced if significantly compromised to maintain consistent performance and reliability. This maintenance cycle is crucial 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 cutting-edge multi-bag filter system, featuring a quick-opening flange ring secured by robust bolt fastening, is a marvel of engineering. It provides unmatched pressure resistance for reliability and outstanding performance. The innovative booster spring mechanism simplifies the process, enabling frequent filter bag changes with ease. Reduce downtime dramatically, enhance productivity, minimize worker fatigue, and significantly boost operational efficiency with this brilliantly engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unleash the potential of our revolutionary spring-balance mechanism, which offers smooth, labor-saving operation of the upper cover. Enjoy effortless adjustability from 0 to 105° with a sleek clamshell design that prevents any liquid spills upon opening. This efficient structure optimizes space utilization and streamlines workflow, ensuring maximum operational efficiency.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece guarantees a perfect 360° seal with the filter bag, eradicating side leakage. The reinforced filter bag works in harmony with the robust flower plate, designed to withstand higher pressures and minimize pressure loss, improving filtration efficacy. With a wide array of customization options, we offer tailored flow configurations from 2 to 24 bags, specifically engineered to align with your precise requirements.
Effortlessly change filter bags with our state-of-the-art spring locking device, ensuring a seamless and efficient workflow.
Our meticulously crafted basket gasket guarantees absolute leak prevention, offering reliable and consistent performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Choose from a comprehensive suite of customizable inlet and outlet direction options, ensuring perfect alignment with your installation and user needs. The adaptable flange diameter, ranging from DN25 to DN250, ensures seamless integration with your existing system, delivering unmatched adaptability and flexibility.
Our expertly engineered bag filters epitomize the zenith of precision engineering, crafted with meticulous attention to detail. These filters excel in extracting even the most minuscule trace impurities from liquids, acting as an indispensable cornerstone across a vast array of industries. Offering unmatched precision and unfailing reliability, they ensure optimal performance with every use.
- Refined Chemicals Sector: Harnessing the power of high-precision filtration to elevate chemical product quality and purity, our solutions maximize the potential of refined chemicals. Paint and Ink Filtration Excellence: Our filters set a new standard in paint and ink filtration, ensuring vibrant colors and flawless finishes for unrivaled quality.
- Oil & Gas Sector Innovations: Pioneering the industry with cutting-edge filtration solutions, we enhance efficiency and safety, pushing the boundaries in the oil and gas sector. Addressing the complex challenges of produced water filtration and well injection water purification, our solutions ensure optimal performance and strict adherence to environmental regulations.
- Food & Beverage Industry Solutions: We elevate quality and safety with tailored filtration solutions, meeting diverse processing needs in the food and beverage industry with precision. Providing expert filtration customized for beer and wine production, juice concentrate clarification, and for the pristine processing of soft drinks and bottled water, maintaining exceptional quality and taste at every step.
- Automotive Manufacturing Precision: Our advanced filtration solutions drive excellence in automotive manufacturing, enhancing processes like spray coating pretreatment and electrophoretic paint processing for superior finishes and primer filtration. Delivering peak performance in automotive spray coating pretreatment and electrophoretic paint processing, our solutions ensure superior finish and primer filtration while optimizing parts cleaning fluids for unmatched precision.
- Pulp & Paper Industry Applications: Offering advanced coating filtration solutions tailored for the unique and demanding needs of the pulp and paper industry, ensuring seamless and flawless production processes. Providing state-of-the-art coating filtration solutions, customized to meet the unique demands of the pulp and paper industry, ensuring smooth and flawless production processes.
- Machining Industry Efficiency: Leading the forefront in tool performance enhancement through our superior filtration technology, increasing tool longevity and efficiency. Delivering superior filtration that elevates the efficiency and performance of machine tool coolant circulation, cleaning fluids, and optimizes hydraulic and lubricating oils management, significantly boosting machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and excellence in the vibrant world of industrial precision filtration and self-cleaning filtration solutions. With a glorious legacy stretching over a decade, we showcase unparalleled prowess in design and research & development. By harnessing cutting-edge filtration technology, we present an extensive array of premium product offerings. Our comprehensive solutions deliver turnkey filtration systems meticulously tailored to meet the diverse and sophisticated needs of our esteemed clientele.
At SLOT, we take immense pride in upholding the prestigious ISO9001 quality management system certification, along with accolades from SGS, underscoring our unwavering commitment to excellence. We diligently adhere to international standards and specific industry regulations, meticulously crafting our product designs and manufacturing processes to fulfill each client's unique specifications. Our unwavering dedication is reflected in producing filtration equipment and components that exemplify outstanding performance and unrivaled quality.
Our SLOT automatic self-cleaning filter systems are hailed as the premier choice across a vast array of industries, including petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage production, and metal processing. We have forged robust and enduring partnerships with numerous distinguished industrial enterprises, both within our borders 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 seeking superior filter system performance, impeccable quality, and outstanding service, SLOT is your trusted partner for sustained success.

Quality Management: At the core of Hebei Slot Filter Technology Co., Ltd. lies an unwavering dedication to quality. Our stringent quality management protocols ensure that every product not only meets but exceeds industry standards, guaranteeing exceptional performance and reliability.
FAQ
1. Who are we?
Founded in the dynamic heart of Hebei, China, in 2014, we are Hebei Slot Filter Technology Co., Ltd., a name synonymous with cutting-edge innovation. Our pioneering solutions resonate with customers across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our passionate team of 11 to 50 expert professionals is committed to excellence and achieving the extraordinary.
2. How can we guarantee quality?
Our unwavering commitment is to deliver unmatched quality. Before full production, we validate standards with sample evaluations to ensure flawless alignment.
Each shipment undergoes meticulous inspections, upholding our rigorous quality benchmarks and unmatched consistency with impeccable precision.
3. What can you buy from us?
Discover our expansive selection of expertly crafted products like the precision-engineered Johnson Screen, durable Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, cutting-edge Pipe-based screens, robust Perforated Pipes, and premium API/5CT Casing and Tubing. Each product is designed to exceed performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We offer a complete range of OEM & ODM solutions, seamlessly tailoring products to meet your unique requirements.
2. Our expert team excels in custom design and development, transforming your ideas into reality with bespoke drawings.
3. Equipped with an advanced R&D team, we deliver cutting-edge solutions and set new industry standards.
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; providing you with a comprehensive and tailored logistics experience.
We accept a wide range of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring a seamless transaction process.
For maximum convenience, we support various payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, offering you ultimate ease.
Communicate effortlessly with us in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian. We break language barriers to ensure smooth and effective communication.
Dreaming of becoming an agent in your local market? Contact us and explore thrilling opportunities together. Join us on this exciting journey to grow and succeed.