The revolutionary Quick Open series of multi-bag filter housings introduces an advanced, self-balancing V-clamp locking mechanism, representing a significant breakthrough from traditional designs. Thanks to its intuitive, single-handed operation, this feature becomes the ideal choice for applications demanding high flow rates and frequent element change-outs.
With minimal downtime, it effectively reduces operating costs and ensures a smoother, more efficient batch processing experience.
Efficiency reaches new heights with a fully-interlocked pressure release, guaranteeing safety under all operational conditions. Its robust, corrosion-free V-clamp and unique screw-drive mechanism provide users with enduring service. Designed with resilience in mind, the housing promises users an extended lifespan, delivering years of reliable performance.
Enhance your filtration experience with our diverse selection of precisely engineered, durable filter-bag materials, thoughtfully crafted to meet specific application demands:
PP (Polypropylene): Ideally rated from 1-200µm, this versatile material withstands temperatures up to 70°C, showcasing adaptability across various applications and settings.
PE (Polyester): With a durable design, this material offers filtration from 1-200µm and sustains temperatures up to 120°C, making it perfect for the most demanding and rigorous applications.
Nylon: Featuring an impressive filtration range of 25-800µm, with a remarkable resistance to high temperatures up to 150°C, this material is ideally suited for the most challenging environments.
Uncover the cutting-edge capabilities of our Stainless Steel Multi-bag Filter Machine, a pinnacle of precision engineering and exceptional performance. Delve into our Filter-Bag Numbers and their 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 wide-ranging selection meets diverse filtration requirements, offering tailored solutions for every need.

Discover the pinnacle of innovative filtration solutions with our multi-bag filter system, the manifestation of cutting-edge engineering designed to redefine purification with unmatched precision. Ingeniously crafted, the system's strategically positioned inlet beneath the filter bags gracefully elevates the filter medium into the housing's upper chamber. From this elevated position, it masterfully directs the flow downward with exquisite precision, channeling seamlessly through the filter bags. This sophisticated process ensures the impeccable capture of impurities, delivering the purest filtrate with exceptional grace and efficiency. Embrace the ultimate in flawless filtration with our state-of-the-art design.
To ensure optimal filtration performance, vigilant monitoring of filter bags is paramount. As impurities accumulate and form compact filter cakes, reaching a differential pressure of 0.14-0.17 MPa, it's clear that replacing the bags is essential. During this crucial maintenance phase, methodically shut down the system, gently open the pressure relief valve, and carefully remove the filter cover. Once fresh bags are installed, the system is poised to resume its flawless operation. Our filter bags are designed with eco-consciousness in mind, allowing for cleaning and reuse, while replacement is recommended if significantly compromised. This maintenance cycle is vital for achieving efficiency and prolonging the operational lifespan of your filtration system, ensuring consistent performance and reliability in your purification 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 is crafted with a quick-opening flange ring, securely fastened with robust bolt fastening. This meticulous design guarantees exceptional pressure resistance, delivering unmatched reliability and performance. The advanced booster spring mechanism allows for effortless operation, making routine filter bag changes swift and easy. Witness a notable reduction in downtime, significant boosts in productivity, reduced worker fatigue, and a remarkable increase in operational efficiency with this expertly engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Uncover the ingenuity of our revolutionary spring-balance mechanism, offering smooth and labor-saving operation for the upper cover. With effortless adjustability from 0 to 105°, it features a sleek, clamshell design that ensures no liquid spills upon opening. This efficient configuration maximizes spatial utilization and refines your workflow, optimizing every inch of your operational space.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our sophisticated compression spring pressure component guarantees a perfect 360° seal with the filter bag, completely eliminating side leakage. The fortified filter bag supports the resilient flower plate, designed to endure higher pressures while reducing pressure loss, thus enhancing filtration effectiveness. With a variety of customization options, we offer customer flow configurations ranging from 2 to 24 bags, expertly tailored to meet your precise requirements.
Enjoy smooth and effortless filter bag changes with our innovative spring locking device, ensuring an uninterrupted workflow.
Our expertly crafted basket gasket ensures total leakage prevention, providing unwavering and reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a comprehensive range of customizable inlet and outlet direction options, ensuring precise alignment with your installation specifications and user preferences. The adaptable flange diameter, adjustable from DN25 to DN250, ensures seamless integration with your existing system, offering unparalleled adaptability and flexibility.
Our meticulously engineered bag filters represent the epitome of precision and innovation in filtration technology. With an unwavering commitment to excellence, these filters surgically remove even the slightest impurities from liquids. They are indispensable assets across diverse industries, providing unwavering precision and reliability that ensures flawless operation every time.
- Refined Chemicals Sector: Harness the power of precision with our high-efficiency filtration solutions, designed to elevate the purity and quality of your chemical products to new heights. Paint and Ink Filtration Excellence: Our filters redefine standards, ensuring vibrant hues and impeccable finishes. Trust in our solutions for unparalleled paint and ink filtration performance.
- Oil & Gas Sector Innovations: Pioneer the future with our cutting-edge filtration solutions, designed to enhance efficiency and safety in the ever-challenging oil and gas sector. Tackling the intricate challenges of produced water filtration and well injection water purification, our solutions ensure peak performance and rigorous environmental compliance.
- Food & Beverage Industry Solutions: Elevate both quality and safety with our custom-tailored filtration solutions, perfectly suited for diverse food and beverage processing applications. Expertly crafted filtration solutions offer unparalleled clarity for beer and wine production, juice concentrate refinement, and ensure the pristine processing of soft drinks and bottled water, maintaining exemplary quality and taste.
- Automotive Manufacturing Precision: Our advanced filtration solutions drive excellence in spray coating pretreatment, electrophoretic paint processing, ensuring superior finish and primer filtration for unrivaled automotive manufacturing performance. Our sophisticated solutions deliver outstanding performance in automotive spray coating pretreatment, electrophoretic paint processing, and ensure superior finish and primer filtration. Experience impeccable filtration for parts cleaning fluids, optimizing both performance and precision across every application.
- Pulp & Paper Industry Applications: Our advanced coating filtration solutions are engineered to meet the unique and demanding needs of the pulp and paper industry, ensuring seamless and flawless production processes. We provide state-of-the-art coating filtration solutions tailored to the distinct demands of the pulp and paper industry, guaranteeing smooth and impeccable production processes.
- Machining Industry Efficiency: We lead the charge in enhancing tool performance and longevity, utilizing cutting-edge filtration technology to drive efficiency forward. Our superior filtration technology enhances 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 excellence in the ever-evolving field of industrial precision filtration and groundbreaking self-cleaning filtration solutions. With a distinguished legacy of over a decade, we are a paragon of design and R&D brilliance, harnessing cutting-edge filtration technology to offer an expansive array of premium-quality product solutions. Our comprehensive offerings deliver bespoke turnkey filtration systems that adeptly cater to the diverse and sophisticated needs of our esteemed clientele.
At SLOT, we proudly maintain the prestigious ISO9001 quality management system certification and have been lauded by SGS, underscoring our unwavering dedication to excellence. We diligently adhere to global standards and industry-specific regulations, meticulously custom-designing our products and manufacturing processes to meet the unique specifications of our clients. Our unwavering commitment is reflected in the creation of filtration equipment and components that exemplify extraordinary performance and unmatched quality.
Our SLOT automatic self-cleaning filter systems are the preferred choice for an expansive array of industries, including petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged strong and enduring partnerships with numerous acclaimed industrial enterprises, both within our borders and across the globe.
Renowned for our superior product filter performance, state-of-the-art manufacturing capabilities, and devoted professional services, SLOT is a hallmark of excellence. For those seeking unparalleled filter system performance, exceptional quality, and outstanding service, SLOT is your trusted ally in achieving lasting success.

Quality Management: Our commitment to excellence is unwavering. We adhere to the highest standards of quality management, ensuring every product meets rigorous benchmarks for performance and reliability.
FAQ: Your questions, our answers. Dive into our comprehensive FAQ section to gain insights into our operations, products, and services, all designed to empower your decision-making.
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. We bring pioneering filtration solutions to North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dedicated team of 11 to 50 professionals is driven by a passion for excellence, consistently pushing the boundaries of what is possible.
2. How can we guarantee quality?
Our steadfast promise is to deliver unparalleled quality. Before commencing full production, we conduct sample evaluations to ensure standards are precisely met, guaranteeing perfection in every detail.
Every shipment undergoes thorough inspections, maintaining our strict quality standards and ensuring unparalleled consistency with meticulous precision.
3. What can you buy from us?
Unveil our vast array of expertly crafted products, including the precision-engineered Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, innovative Pipe-based screens, sturdy Perforated Pipes, and high-grade API/5CT Casing and Tubing. Each product is meticulously designed to exceed your performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide an extensive range of OEM & ODM solutions, custom-tailoring products to fit your specific needs with seamless precision.
2. Our skilled team excels in custom design and development, turning your vision into reality through bespoke drawings and tailored solutions.
3. Our cutting-edge R&D team delivers innovative solutions, consistently setting new benchmarks in the industry and meeting evolving market demands.
5. What services can we provide?
We offer a comprehensive range of flexible delivery options such as FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES, ensuring your products arrive safely and on time.
Our acceptance of diverse payment currencies, including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensures a seamless and convenient transaction process for you.
For your utmost 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 ease and flexibility.
Engage with us effortlessly in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian, fostering smooth and effective communication.
Aspiring to become an agent in your local market? Reach out to us and discover exciting opportunities as we explore new horizons together.