Introducing our Quick Open series multi-bag filter housings, designed with a revolutionary self-balancing V-clamp locking mechanism. This innovation is a remarkable advancement from traditional designs, offering unparalleled ease of use. This feature allows for effortless, one-handed operation, making it the perfect solution for high flow rate applications. Its user-friendly nature ensures that frequent element change-outs are hassle-free.
Experience minimal downtime, which significantly reduces operating costs and ensures that batch processes run seamlessly and efficiently.
Our system enhances efficiency through a fully-interlocked pressure release, guaranteeing utmost safety under all conditions. Built with durability and strength, the housing boasts a corrosion-free V-clamp and a proprietary screw-drive mechanism, promising users reliability and longevity over years of service.
Enhance your filtration capabilities with our wide array of precision-crafted, durable filter-bag materials. Each is expertly designed to meet distinct, specialized demands:
PP (Polypropylene): With ratings of 1-200µm, this versatile material endures temperatures up to 70°C, making it ideal for a broad spectrum of environments and uses.
PE (Polyester): Known for its durability, this material offers a range of 1-200µm and withstands temperatures up to 120°C. It is perfectly suited for the most challenging and demanding applications.
Nylon: Available in an impressive range of 25-800µm, this material boasts exceptional high-temperature resistance up to 150°C, making it ideal for the toughest and most strenuous environments.
Unveil the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine. This epitome of excellence and precision engineering is designed to elevate your filtration experience. Delve into the comprehensive specifications of our Filter-Bag Numbers, each offering distinct features: 1#: With dimensions of 180mmD x 410mmL; 2#: 180mmD x 810mmL; 3#: 102mmD x 210mmL; 4#: 102mmD x 380mmL, our diverse selection addresses a wide array of filtration needs, ensuring bespoke solutions tailored to every requirement.

The multi bag filter system stands as a hallmark of cutting-edge engineering, carefully crafted to transform your filtration journey with unmatched precision. With a shrewdly positioned inlet beneath the filter bags, the system masterfully guides the filtration medium upwards into the housing's superior chamber. From this prime position, it expertly channels the flow downwards, navigating through the filter bags with unerring precision. This sophisticated mechanism efficiently ensnares impurities, ensuring the delivery of the purest filtrate with unparalleled elegance and effectiveness. Discover the pinnacle of pristine filtration with our groundbreaking design.
To uphold the highest standards of filtration performance, diligent monitoring of the filter bags is vital. As impurities accumulate, forming dense filter cakes and resulting in a differential pressure of 0.14-0.17 MPa, it becomes clear that bag replacement is necessary. During this crucial maintenance phase, ensure the system is meticulously shut down, the pressure relief valve carefully opened, and the filter cover gently removed. Once fresh bags are in place, the system is poised to resume its flawless operation. Our eco-friendly filter bags can be cleaned and reused, but should be replaced if significantly compromised to maintain consistent performance and reliability. This maintenance routine is essential for sustaining efficiency and prolonging 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, enhanced with a quick-opening flange ring and robust bolt fastening, offers unparalleled pressure resistance. This ensures steadfast reliability and outstanding performance. The innovative booster spring mechanism simplifies operation, making frequent filter bag changes effortless. Experience dramatic downtime reduction, substantial productivity boosts, minimized worker fatigue, and a significant rise in operational efficiency with this meticulously engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Discover the brilliance of our revolutionary spring-balance mechanism, which offers seamless, labor-saving operation of the upper cover. With smooth adjustability from 0 to 105°, it supports a sleek clamshell design that ensures zero liquid spills upon opening. This efficient structure optimizes space utilization, streamlining your workflow, and maximizing every inch of your operational space.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece ensures a flawless 360° seal with the filter bag, completely eliminating side leakage. The reinforced filter bag, designed to support a durable flower plate, withstands higher pressures while minimizing pressure loss, enhancing filtration efficacy. With a range of customization options, we provide customer flow configurations from 2 to 24 bags, precisely engineered to meet your specific needs.
Experience smooth, effortless filter bag changes with our cutting-edge spring locking device, ensuring a seamless workflow.
Our basket gasket is precisely crafted to guarantee absolute leakage prevention, delivering unwavering, dependable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We offer a diverse suite of customizable inlet and outlet direction options, ensuring precise alignment with your installation needs and user preferences. The versatile flange diameter, adjustable from DN25 to DN250, guarantees perfect integration with your existing system, offering unparalleled adaptability and flexibility.
Our expertly engineered bag filters exemplify the zenith of precision engineering. With meticulous craftsmanship, they effectively extract even the tiniest trace impurities from liquids. These indispensable filters are the foundation of numerous industries, providing unparalleled precision and reliability that never wavers.
- Refined Chemicals Sector: Harnessing the utmost precision in filtration to elevate the quality and purity of chemical products to new heights. Paint and Ink Filtration Excellence: Ensuring that vibrant colors and flawless finishes are achieved effortlessly, our filters establish the benchmark in paint and ink filtration industries.
- Oil & Gas Sector Innovations: At the forefront with cutting-edge filtration solutions, enhancing efficiency and safety within the oil and gas industry like never before. Delivering dependable solutions for the intricate challenges of produced water filtration and well injection water purification, ensuring peak performance and environmental compliance.
- Food & Beverage Industry Solutions: Elevating quality and safety with bespoke filtration systems for the diverse processing needs in the food and beverage sector. Providing specialized filtration for beer and wine production, juice concentrate clarification, and maintaining pristine quality for soft drinks and bottled water, ensuring exceptional taste and purity.
- Automotive Manufacturing Precision: Pioneering excellence with advanced filtration solutions for spray coating pretreatment and electrophoretic paint processing, guaranteeing superior finish and primer filtration. Delivers enhanced performance in automotive spray coating pretreatment and electrophoretic paint processing, with superior finish and primer filtration. Our solutions ensure impeccable filtration for parts cleaning fluids, optimizing performance and precision in every application.
- Pulp & Paper Industry Applications: Offering advanced coating filtration solutions tailored to meet the unique and demanding requirements of the pulp and paper industry, facilitating smooth and flawless production processes. Delivering cutting-edge coating filtration solutions customized to the distinctive demands of the pulp and paper industry, ensuring seamless and impeccable production operations.
- Machining Industry Efficiency: Spearheading the enhancement of tool performance and longevity through superior filtration technology, revolutionizing machining industries. Providing exceptional filtration to enhance the efficiency and performance of machine tool coolant circulation, cleaning fluids, and the effective management of hydraulic and lubricating oils, significantly boosting overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and expertise in the ever-evolving field of industrial precision filtration and self-cleaning filtration solutions. With a legacy of excellence spanning more than a decade, our company demonstrates unparalleled proficiency in design and research & development. By harnessing state-of-the-art filtration technology, we present an expansive array of premium product resources. Our comprehensive solutions deliver fully-tailored, turnkey filtration systems designed to meet the diverse and sophisticated needs of our esteemed clientele.
At SLOT, we take immense pride in our ISO9001 quality management system certification and the accolades received from SGS, underscoring our unwavering dedication to excellence. We adhere rigorously to international standards and specific industry regulations, meticulously custom-crafting our product designs and manufacturing processes to meet each client's unique specifications. Our commitment is focused on producing filtration equipment and components that showcase outstanding performance and exceptional quality.
Our SLOT automatic self-cleaning filter systems are the industry-leading choice, spanning a multitude of sectors including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have fostered strong and enduring partnerships with numerous prestigious industrial enterprises, both within our nation and across the globe.
Renowned for our exceptional product filter performance, cutting-edge manufacturing capabilities, and devoted professional services, SLOT is synonymous with excellence in the filtration industry. For those seeking top-tier filter system performance, unmatched quality, and exemplary service, SLOT is the trusted partner committed to your lasting success.

Quality Management
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 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;
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.
Dreaming of becoming an agent in your local market? Contact us and explore thrilling opportunities together.