Discover our Quick Open series multi-bag filter housings, which boast an innovative self-balancing V-clamp locking mechanism. This breakthrough from conventional designs elevates user experience to new heights. With its intuitive single-handed operation, this feature shines as the perfect choice for high flow rate applications, where seamless and efficient functionality is paramount.
These systems are specifically designed for frequent element change-outs, ensuring minimal downtime and reduced operating costs, perfect for streamlining batch processes.
Safety meets efficiency with our fully-interlocked pressure release system, rigorously crafted to enhance safety in every condition. Experience unparalleled reliability and peace of mind. Crafted with a rugged, corrosion-free V-clamp and our proprietary screw-drive mechanism, the housing promises longevity, providing users with years of uninterrupted service.
Transform your filtration journey with our exquisite selection of filter-bag materials, each precisely engineered to cater to your specific demands with durability and precision:
PP (Polypropylene): This versatile material, rated at 1-200µm, withstands temperatures up to 70°C, making it a multifaceted choice across diverse environments and applications.
PE (Polyester): Offering a broad range of 1-200µm and enduring temperatures up to 120°C, this resilient material excels in the most challenging and demanding scenarios.
Nylon: With a remarkable range of 25-800µm and high-temperature endurance up to 150°C, this material is purposefully crafted for the most strenuous and rigorous conditions.
Unveil the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, a true paragon of engineering excellence. It represents the pinnacle of precision and innovation. Delve into our Filter-Bag Numbers, each with Comprehensive 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 meets a wide array of filtration needs, offering customized solutions for every requirement.

The multi bag filter system is a masterpiece of advanced engineering, meticulously crafted to transform your filtration experience with unmatched precision. Featuring a strategically positioned inlet beneath the filter bags, the system gracefully channels the filter medium upwards into the housing's upper chamber. From this elevated point, it orchestrates a flawless downward flow, expertly guiding through the filter bags with precision. This sophisticated process captures impurities with grace, delivering the purest filtrate with unrivaled efficiency. Embrace the pinnacle of pristine filtration with our state-of-the-art design.
To sustain optimal filtration performance, vigilant monitoring of the filter bags is paramount. As impurities accumulate and create dense filter cakes, resulting in a differential pressure of 0.14-0.17 MPa, it becomes clear that bag replacement is essential. During this critical maintenance phase, ensure the system is gently shut down, the pressure relief valve is opened with care, and the filter cover is delicately removed. Once fresh bags are in place, the system is primed to resume its flawless operation. Our filter bags, designed with eco-friendliness in mind, can be cleaned and reused; however, they should be replaced if significantly compromised to uphold consistent performance and reliability. This maintenance cycle is vital for efficiency and prolonged operational excellence 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
Embrace cutting-edge filtration technology with our remarkable multi-bag filter system. Featuring a quick-opening flange ring, secured with steadfast bolt fastening, it assures superior pressure resistance and unyielding reliability. The innovative booster spring design effortlessly simplifies operations, allowing for hassle-free and swift filter bag replacements. Expect notable reductions in downtime, significant productivity boosts, reduced worker fatigue, and an overall increase in operational efficiency with this ingeniously crafted system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Marvel at the sophistication of our breakthrough spring-balance mechanism, engineered for smooth and effortless upper cover operation. With an adjustable range from 0 to 105°, it boasts a streamlined clamshell design that prevents any liquid spills during opening. This smart structure maximizes your operational space, ensuring optimal spatial efficiency and streamlined workflows for enhanced productivity.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our premier compression spring pressure piece guarantees a perfect 360° seal with the filter bag, effectively preventing side leakage. The reinforced filter bag, coupled with the durable flower plate, withstands high pressures while reducing pressure loss, boosting filtration performance. With customizable configurations ranging from 2 to 24 bags, our products are meticulously tailored to fit your unique requirements.
Enjoy smooth and straightforward filter bag changes with our advanced spring locking device, ensuring a continuous and efficient workflow.
Our expertly designed basket gasket ensures total leakage prevention, delivering consistent and reliable performance round the clock.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Explore a wide array of customizable inlet and outlet direction choices, tailored to align precisely with your installation requirements and preferences. The adaptable flange diameter, adjustable from DN25 to DN250, ensures seamless integration with your existing system, delivering unmatched adaptability and flexibility.
Our expertly engineered bag filters are a shining example of the zenith of precision engineering. With meticulous craftsmanship, these filters adeptly extract even the tiniest impurities from liquids. Serving as the essential foundation across a multitude of industries, they offer unrivaled precision and unwavering reliability.
- Refined Chemicals Sector: Harnessing the full potential of precision filtration, we elevate the quality and purity of chemical products to new heights. Paint and Ink Filtration Excellence: Ensuring the most vibrant colors and flawless finishes, our filters set the gold standard in the paint and ink filtration landscape.
- Oil & Gas Sector Innovations: At the forefront of innovation, we provide cutting-edge filtration solutions that enhance efficiency and safety in the vital oil and gas industry. Offering dependable solutions for the intricate challenges of produced water filtration and well injection water purification, we ensure optimal performance while meeting environmental standards.
- Food & Beverage Industry Solutions: We elevate quality and safety standards with custom filtration tailored to the diverse needs of food and beverage processing. Providing expert filtration precisely designed for beer and wine production, juice concentrate clarification, and pristine processing of soft drinks and bottled water, we maintain outstanding quality and taste.
- Automotive Manufacturing Precision: Leading the drive towards excellence with advanced filtration solutions for spray coating pretreatment and electrophoretic paint processing, ensuring superior finish and primer filtration. Enhancing performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration, our solutions guarantee impeccable filtration for parts cleaning fluids, boosting performance and precision.
- Pulp & Paper Industry Applications: Delivering state-of-the-art coating filtration solutions, we cater to the unique and demanding needs of the pulp and paper industry. Providing cutting-edge coating filtration solutions tailored to the specific demands of the pulp and paper industry, we ensure smooth and flawless production processes.
- Machining Industry Efficiency: Pioneering advancements in enhancing tool performance and longevity through our superior filtration technology. Offering superior filtration that boosts the efficiency and performance of machine tool coolant circulation, cleaning fluids, and the effective management of hydraulic and lubricating oils, enhancing overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. shines brightly as a trailblazer in the ever-evolving world of industrial precision filtration and self-cleaning filtration solutions. With a storied history that spans more than a decade, our company stands as a paragon of design innovation and research & development prowess. By harnessing the power of advanced filtration technology, we provide an expansive array of high-quality product resources. Our comprehensive solutions deliver complete turnkey filtration systems, expertly crafted to meet and exceed the diverse and intricate needs of our esteemed clients.
At SLOT, we take immense pride in maintaining the prestigious ISO9001 quality management system certification, alongside accolades from SGS, underscoring our unwavering dedication to excellence. We rigorously adhere to international standards and industry-specific regulations, meticulously custom-designing our product offerings and manufacturing processes to suit each client's distinct requirements. Our commitment is reflected in the production of filtration equipment and components that are synonymous with exceptional performance and unparalleled quality.
Our SLOT automatic self-cleaning filter systems emerge as the number one choice across an extensive range of industries. These include petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged strong and enduring partnerships with numerous prestigious industrial enterprises, both within our domestic borders and on the international stage.
Renowned for our exceptional product filter performance, state-of-the-art manufacturing capabilities, and unwavering professional services, SLOT is a name that epitomizes excellence. For those seeking unparalleled filter system performance, flawless quality, and exemplary service, SLOT is your committed partner for lasting success.

Quality Management: Our commitment to excellence shines through in every stage of our process, ensuring that our products consistently meet the highest standards of quality and reliability.
FAQ: Discover answers to your most pressing questions and learn more about our groundbreaking offerings and exceptional service.
1. Who are we?
Founded in the vibrant hub of Hebei, China, in 2014, Hebei Slot Filter Technology Co., Ltd. stands as a beacon of innovation. Our pioneering solutions captivate markets across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dedicated team, spanning 11 to 50 skilled professionals, is unwavering in its pursuit of excellence and groundbreaking achievements.
2. How can we guarantee quality?
We are committed to delivering unparalleled quality. Each product undergoes rigorous sample evaluations before full production to ensure flawless standards are met with precision.
Every shipment is meticulously inspected, adhering to our stringent quality benchmarks, ensuring consistency and precision.
3. What can you buy from us?
Explore our wide array of precision-engineered products, including the Johnson Screen, resilient Bridge Slotted Well Screens, and Sand Control Well Screens, along with high-efficiency GravelPre-pack Screen, innovative Pipe-based screens, robust Perforated Pipes, and top-tier API/5CT Casing and Tubing. Each product is crafted to exceed industry standards.
4. Why should you buy from us, not from other suppliers?
1. We provide a comprehensive range of OEM & ODM solutions, perfectly tailoring products to your specific needs.
2. Our skilled team excels in custom design and development, bringing your vision to life with bespoke drawings.
3. With an advanced R&D team, we deliver state-of-the-art solutions and set new industry benchmarks.
5. What services can we provide?
Benefit from our flexible delivery options, including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, and DES.
We accept a wide range of payment currencies: USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring smooth transactions.
For your convenience, we support various payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow, offering ultimate ease.
Communicate effortlessly with us in multiple 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 explore exhilarating opportunities together.