Introducing the Quick Open series multi-bag filter housings, a marvel of modern engineering featuring the advanced self-balancing V-clamp locking mechanism. This groundbreaking innovation redefines traditional designs, offering an effortless, single-handed operation that is exceptionally user-friendly. It stands as the ultimate choice for applications demanding elevated flow rates. Crafted for environments where frequent element change-outs are necessary, this system minimizes downtime, dramatically reduces operating costs, and guarantees a seamless batch processing experience, making it indispensable for efficient operations.
Experience unmatched efficiency with a fully-interlocked pressure release, ensuring safety in every situation. Built with a durable, corrosion-resistant V-clamp and an exclusive screw-drive mechanism, this housing guarantees years of reliable service to its users, exemplifying durability and dependability.
Customize your filtration solution with a selection of precise and robust filter-bag materials:
PP: Rated between 1-200µm, it withstands temperatures up to 70°C. This material ensures versatility across various applications, providing adaptable solutions.
PE: Offering a range from 1-200µm, this material withstands temperatures up to 120°C, ideal for more demanding applications where durability is essential.
Nylon: With an impressive range of 25-800µm and a tolerance up to 150°C, this material is perfect for challenging environments, providing superior performance in extreme conditions.
Explore the technical excellence of our Stainless Steel Multi-bag Filter Machine: Filter-Bag Numbers & their Specifications: 1#: Measuring 180mmD x 410mmL; 2#: At 180mmD x 810mmL; 3#: Sized at 102mmD x 210mmL; 4#: 102mmD x 380mmL, offering diverse options to meet a variety of filtration needs.
In a brilliantly conceived and meticulously engineered process, the multi-bag filter system showcases its innovative design through a carefully positioned inlet, strategically located below the filter bags. As the filter medium gracefully enters this inlet, it majestically rises to the upper section of the housing, sitting elegantly above the filter bags. Here, the medium commences its smooth descent, effortlessly passing through the superior quality filter bags and ensuring a highly efficient filtration process. This sophisticated method adeptly captures impurities within the filter bags, thus allowing only the immaculate and purified filtrate to exit serenely through the outlet.
To achieve peak performance and ensure the utmost efficiency, it is vital to closely monitor the condition of the filter bags. As impurities steadily accumulate and form what is known as filter cakes, resulting in a differential pressure of 0.14-0.17 MPa, it becomes essential to replace the bags to maintain optimal function. During this crucial maintenance phase, it is imperative to shut down the filter system, open the pressure relief valve, and carefully remove the filter cover. Once the new, pristine filter bags are securely in place, the system is ready to be reactivated, promising a seamless continuation of operations. Remarkably, these filter bags boast the ability to be cleaned and reused, providing significant sustainability benefits. However, it is crucial to replace them if they endure substantial damage. Adhering to this cycle ensures both the efficiency and longevity of the filtration process, making it an indispensable part of the system's operation.
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 - MORE PRESSURE RESISTANT
Our state-of-the-art multi-bag filter is designed with a revolutionary quick-opening flange ring complemented by bolt fastening, delivering unparalleled pressure resistance. The addition of an advanced booster spring mechanism ensures operations are both seamless and highly efficient, making it ideal for frequent filter bag replacements. This innovative system minimizes downtime, significantly elevating productivity, reducing worker fatigue, and enhancing overall efficiency.
2. SPRING-BALANCE MECHANISM
Our cleverly engineered spring balance mechanism allows for smooth and effortless operation of the upper cover, adjustable to any angle between 0-105° as required. The robust yet straightforward support framework, combined with a sleek clamshell design, eliminates liquid overspill upon opening, maximizing spatial efficiency.
3. THE CORE OF THE BAG FILTER SYSTEM
Our cutting-edge compression spring pressure component ensures a perfect 360° seal with the filter bag, effectively preventing any side leakage. The fortified filter bag, crafted to support the durable flower plate, withstands heightened pressures while minimizing pressure loss, thereby amplifying its filtration capabilities. We provide versatile customization options, accommodating customer flow requirements ranging from 2 to 24 bags, all tailored to your unique specifications.
Effortless filter bag changes with spring locking device
Basket gasket ensures complete leakage prevention
4. DIRECTION OF INLET AND OUTLET
We provide customizable options for the direction of inlets and outlets to perfectly meet your distinct installation conditions and usage requirements. The flange diameter is adaptable, available from DN25 to DN250, ensuring seamless integration with your system.
Our expertly engineered bag filters are masterfully crafted to efficiently extract trace fine impurities from liquids. These filters are indispensable across a multitude of industries, offering unmatched precision and reliability.
- Refined Chemicals Sector. Paint and Ink Filtration Excellence.
- Oil & Gas Sector Innovations. Reliable solutions for produced water filtration, and well injection water purification.
- Food & Beverage Industry Solutions. Expert filtration for beer and wine production, juice concentrate clarification, and the pristine processing of soft drinks and bottled water.
- Automotive Manufacturing Precision. Enhanced automotive spray coating pretreatment, electrophoretic paint processing, as well as finish and primer filtration. Also, impeccable filtration for parts cleaning fluids.
- Pulp & Paper Industry Applications. Advanced coating filtration solutions.
- Machining Industry Efficiency. Superior filtration for machine tool coolant circulation, cleaning fluids, as well as hydraulic and lubricating oils.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a cornerstone in the industrial precision filtration and self-cleaning filtration landscape. With over ten years of profound industry expertise, we exhibit unmatched skills in design, research, and development. By leveraging advanced filtration technology alongside an extensive array of premium product resources, we provide comprehensive turnkey filtration solutions tailored to the multifaceted demands of our esteemed clients.
SLOT proudly possesses the ISO9001 quality management system certification and additional recognition from SGS, reflecting our steadfast dedication to excellence. We rigorously adhere to both international standards and niche industry regulations, meticulously customizing our product designs and manufacturing processes to meet individual client needs. Our commitment is to develop filtration equipment and components that exemplify peak performance and superior quality.
Our state-of-the-art SLOT automatic self-cleaning filter systems are the premier choice across diverse industries, including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have established robust, long-lasting partnerships with numerous prestigious industrial enterprises globally and nationally.
Renowned for our outstanding product filter performance, cutting-edge manufacturing capabilities, and devoted professional services, SLOT is synonymous with unparalleled excellence. For those seeking extraordinary filter system performance, uncompromising product quality, and exceptional service, SLOT is your reliable partner for enduring success.

Quality Management: At the heart of our operations lies an unwavering commitment to quality. Our rigorous quality management processes encompass every stage of production, ensuring that each product meets the highest international standards. We believe that quality is not just a goal, but a continuous journey.
FAQ: Navigate through our comprehensive FAQ section for any queries you might have. We are here to provide clear and concise answers to ensure your experience with us is seamless and informative.
1. Who are we?
Based in Hebei, China, since 2014, we are a dynamic enterprise, spearheading innovation and exporting our state-of-the-art solutions to North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dedicated team comprises between 11 to 50 skilled professionals driven by excellence.
2. How can we guarantee quality?
We ensure quality by providing a pre-production sample to affirm standards before launching mass production.
Meticulous final inspections are conducted before every shipment, ensuring consistency and superior quality.
3. What can you buy from us?
Our diverse product range includes the precision-crafted Johnson Screen, highly durable Bridge Slotted Well Screens, and Sand Control Well Screens, along with GravelPre-pack Screen, state-of-the-art Pipe-based screens, robust Perforated Pipes, and top-tier API/5CT Casing and Tubing.
4. Why should you buy from us, not from other suppliers?
1. We offer comprehensive OEM & ODM support, tailoring products to your specific needs.
2. Our expert team assists in the design and development of custom drawings, bringing your vision to life.
3. Backed by our professional R&D team, we continuously innovate, ensuring cutting-edge solutions.
5. What services can we provide?
Experience unparalleled service with our flexible delivery terms including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accept a variety of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;
For your convenience, we support diverse payment types: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow;
Communicate with us effortlessly in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Interested in becoming our agent in your local market? Reach out, and let's explore exciting opportunities together.