Introducing the Quick Open Series: Step into the future of filtration with our cutting-edge multi-bag filter housings, meticulously designed for superior performance. Boasting a next-generation self-balancing V-clamp locking mechanism, this innovative series elevates the standards with its effortless single-handed operation, making it the definitive choice for high-flow applications. Experience an unparalleled fusion of efficiency and user-friendliness. Crafted for scenarios demanding frequent element replacements, this sophisticated system is the pinnacle of engineering to minimize downtime. It significantly slashes operating costs, ensuring an uninterrupted and seamless batch processing experience. Embrace the perfect synergy of cost-efficiency and performance excellence.
Safety and efficiency are elevated with our fully interlocked pressure release mechanism, offering unrivaled peace of mind. The robust, corrosion-resistant V-clamp construction, alongside a proprietary screw-drive mechanism, ensures years of unwavering service, establishing itself as an essential companion for users in pursuit of excellence.
Personalize your filtration journey with our meticulously selected range of precise and durable filter-bag materials, each crafted to cater to specific needs and requirements:
PP (Polypropylene): Offering a filtration range of 1-200µm, this adaptable material withstands temperatures up to 70°C, making it suitable for a wide array of settings and applications.
PE (Polyester): With a filtration range of 1-200µm, this resilient material can endure temperatures soaring up to 120°C, ideally suited for more demanding and rigorous applications.
Nylon: Showcasing an impressive filtration range of 25-800µm and enduring high temperatures up to 150°C, this material stands as the perfect choice for challenging and strenuous environments.
Unveil the advanced capabilities of our Stainless Steel Multi-bag Filter Machine, designed with precision and excellence in mind. Delve into our comprehensive Filter-Bag Numbers, complete with their Detailed Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Measures 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: Dimensions of 102mmD x 380mmL. We provide a diverse selection of options, meticulously designed to accommodate a variety of filtration needs.
The multi-bag filter system stands as a testament to advanced engineering, meticulously crafted to elevate the filtration process with unparalleled precision. The design begins with a strategically positioned inlet beneath the filter bags, allowing the filter medium to flow effortlessly into the system, ascending to the upper chamber of the housing. From this vantage point, the carefully directed descent begins, as the medium traverses seamlessly through the filter bags. This refined process ensures that impurities are captured with exceptional effectiveness, allowing only the purest filtrate to emerge with elegance and 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 crucial. As impurities gather, forming substantial filter cakes and inducing a differential pressure of 0.14-0.17 MPa, it becomes clear that bag replacement is imperative. During this vital maintenance interval, ensure the system is safely deactivated, the pressure relief valve is engaged, and the filter cover is meticulously removed. After fitting new bags, the system can resume its operations seamlessly. Our filter bags are designed for sustainability, offering the benefit of being cleaned and reused. However, for consistent performance and dependability, replace them when significantly compromised. This maintenance routine is essential for achieving both efficiency and durability in your filtration operations.
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
Experience the pinnacle of pressure resistance with our multi-bag filter system, featuring an advanced quick-opening flange ring secured by bolt fastening. This ensures unmatched durability and reliability under pressure. The integration of a booster spring mechanism guarantees smooth and effortless operation, perfectly suited for frequent filter bag replacements. This innovative design not only significantly reduces downtime but also maximizes productivity, alleviates worker strain, and enhances the overall efficiency of operations.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Our brilliant spring-balance mechanism ensures seamless and labor-efficient handling of the upper cover, adjustable from 0 to 105° as necessary. This robust yet simple design, coupled with a compact clamshell structure, prevents liquid spillage upon opening the lid, thus optimizing available space.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
At the heart of our bag filter system is a state-of-the-art compression spring pressure piece that achieves a flawless 360° seal with the filter bag, effectively preventing any side leakage. The reinforced filter bag is designed to support the robust flower plate, enabling it to withstand higher pressure and minimize pressure loss, thereby enhancing filtration performance. We offer a wide range of customizable options, accommodating customer flow configurations from 2 to 24 bags, meticulously tailored to meet your specific requirements.
Effortless filter bag changes with a spring locking device for quick and easy maintenance.
Basket gasket ensures complete and reliable leakage prevention, offering peace of mind.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Our customizable inlet and outlet direction options are designed to seamlessly align with your specific installation requirements and usage preferences. With an adjustable flange diameter ranging from DN25 to DN250, we ensure a perfect fit and integration with your system.
Our expertly engineered bag filters are masterfully crafted to efficiently extract trace fine impurities from liquids. These robust filters are indispensable across a multitude of industries, offering unmatched precision and reliability for those demanding the highest standards.
- Refined Chemicals Sector. Paint and Ink Filtration Excellence.
- Oil & Gas Sector Innovations. Reliable solutions tailored for produced water filtration and the meticulous purification of well injection water.
- Food & Beverage Industry Solutions. Expert filtration tailored for beer and wine production, ensuring crystal-clear juice concentrate clarification, alongside the pristine processing of soft drinks and bottled water for an unparalleled beverage experience.
- Automotive Manufacturing Precision. Enhanced automotive spray coating pretreatment, electrophoretic paint processing, as well as finish and primer filtration. Impeccable solutions for parts cleaning fluids ensure superior automotive production standards.
- Pulp & Paper Industry Applications. Advanced coating filtration solutions that set the benchmark for quality and consistency in the pulp and paper industry.
- Machining Industry Efficiency. Superior filtration for machine tool coolant circulation and cleaning fluids, as well as hydraulic and lubricating oils, ensuring optimal performance and longevity of machinery.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. emerges as a luminary beacon of innovation and unparalleled expertise within the ever-evolving realm of industrial precision filtration and self-cleaning filtration solutions. Boasting a remarkable legacy that extends beyond a decade, our company showcases unrivaled proficiency in design and advanced R&D. By harnessing cutting-edge filtration technology, we present a diverse portfolio of high-quality product resources. Our comprehensive, turnkey filtration solutions are meticulously crafted to fulfill the diverse demands of our esteemed clientele, ensuring satisfaction at every turn.
Proudly, SLOT upholds the illustrious ISO9001 quality management system certification and has garnered esteemed recognition from SGS, underscoring our unwavering commitment to achieving excellence. We scrupulously adhere to both international standards and stringent industry regulations, tailoring our product designs and manufacturing processes to align with the unique specifications of our clients. Our passion resides in engineering filtration equipment and components that exemplify superior performance and unparalleled quality.
Our SLOT automatic self-cleaning filter systems have become the favored choice across a vast 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 lasting partnerships with a distinguished array of industrial enterprises on both a national and international scale.
Celebrated for our phenomenal product filter performance, state-of-the-art manufacturing capabilities, and unwavering professional services, SLOT has become synonymous with excellence. For those seeking superior filter system performance, uncompromising quality, and exceptional service, SLOT stands poised as your esteemed partner in long-term success.

Quality Management
FAQ
1. Who are we?
Established in 2014 in the vibrant region of Hebei, China, Hebei Slot Filter Technology Co., Ltd. has emerged as a pioneer in delivering state-of-the-art solutions. Our groundbreaking products have carved their path into key markets across the globe including North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dynamic team, composed of 11 to 50 proficient experts, is fervently dedicated to achieving exceptional standards of excellence.
2. How can we guarantee quality?
Our commitment to exceptional quality is unwavering. We assure this by presenting a pre-production sample to uphold the highest standards before we initiate full-scale production.
In-depth final inspections are meticulously executed before every shipment, ensuring each product meets impeccable quality and consistency.
3. What can you buy from us?
Discover our expansive selection of meticulously crafted products including the precision Johnson Screen and the robust Bridge Slotted Well Screens, as well as Sand Control Well Screens, all enhanced by GravelPre-pack Screen technology, advanced Pipe-based screens, sturdy Perforated Pipes, and superior API/5CT Casing and Tubing.
4. Why should you buy from us, not from other suppliers?
1. We deliver comprehensive OEM & ODM solutions, tailoring products precisely to fit your unique specifications.
2. Our skilled team excels in the personalized design and development of custom drawings, bringing your visions to life.
3. With an innovative R&D team, we lead the charge in offering cutting-edge solutions that redefine industry standards.
5. What services can we provide?
We provide versatile delivery options such as: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accommodate a vast array of payment currencies, including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;
To cater to your convenience, we support an extensive range of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow;
Effortlessly communicate with us in a diverse range of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Aspire to be our local market agent? Reach out to us, and together we'll unlock exciting opportunities.