Introducing the Quick Open series multi-bag filter housings, a marvel of modern engineering with its state-of-the-art self-balancing V-clamp locking mechanism. This innovative breakthrough redefines conventional designs, offering a seamless, single-handed operation that is exceptionally user-friendly. It is the go-to choice for applications demanding high flow rates. Designed to cater to needs requiring frequent element change-outs, this system minimizes downtime, thereby significantly reducing operating costs and ensuring a smooth batch processing experience.
Efficiency reaches new heights with a fully-interlocked pressure release, guaranteeing safety in all scenarios. Constructed with a robust, corrosion-resistant V-clamp and a proprietary screw-drive mechanism, this housing promises years of reliable service to its users.
Tailor your filter solution with a selection of precise and durable filter-bag materials:
PP: With a rating of 1-200µm, withstands temperatures up to 70°C, ensuring versatility in various settings.
PE: Offering a range of 1-200µm, this material endures up to 120°C, ideal for more demanding applications.
Nylon: With an impressive 25-800µm range and tolerance up to 150°C, this is perfect for challenging environments.
Delve into the technical prowess 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, providing diverse options for varied needs.
In an ingeniously designed process, the multi bag filter system utilizes a strategically positioned inlet, positioned lower than the filter bags themselves. As the filter medium elegantly enters through the inlet, it ascends to the superior section of the housing above the filter bags. Here, the medium begins its downward journey, seamlessly passing through the filter bags for an efficient filtration process. This method effectively captures impurities within the filter bags, allowing only the pristine filtrate to exit gracefully through the outlet.
For optimal performance, it is crucial to monitor the condition of the filter bags. As impurities accumulate and form filter cakes, leading to a differential pressure of 0.14-0.17 MPa, it's time to replace the bags. During this essential maintenance, ensure the filter system is shut down, the pressure relief valve is opened, and the filter cover is removed. Once the new bags are in place, the system can be reactivated. Notably, filter bags can be cleaned and reused, offering sustainability benefits, but should be replaced when they suffer significant damage. This cycle ensures both efficiency and longevity in the filtration process.
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 multi-bag filter features an innovative quick-opening flange ring with bolt fastening, ensuring exceptional pressure resistance. With the added booster spring mechanism, this system makes operation both simple and efficient, perfectly suited for frequent filter bag replacements. This reduces downtime to a minimum, significantly boosting productivity while alleviating worker fatigue and enhancing overall work efficiency.
2. SPRING-BALANCE MECHANISM
The ingenious spring balance mechanism allows for effortless, labor-saving operation of the upper cover, which can be positioned anywhere between 0-105° as needed. This simple yet durable support structure, combined with the compact clamshell design, prevents liquid overspill when the lid is opened, optimizing space use.
3. THE CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece creates a flawless 360° seal with the filter bag, ensuring no side leakage occurs. The thickened filter bag, designed to support the robust flower plate, withstands higher pressures and minimizes pressure loss, enhancing its filtering capability. We offer flexible customization options, accommodating customer flow needs from 2 to 24 bags tailored to your specifications.
Spring locking device simplifies filter bag changes
The basket gasket guarantees absolute leakage prevention
4. DIRECTION OF INLET AND OUTLET
We offer customizable inlet and outlet direction options to suit your specific installation conditions and usage needs. The flange diameter can also be tailored, ranging from DN25 to DN250, ensuring perfect compatibility 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. is a leading force in the realm of industrial precision filtration and self-cleaning filtration solutions. With over a decade of rich industry experience, our company showcases unparalleled prowess in design and research and development. By harnessing cutting-edge filtration technology and offering a wealth of high-quality product resources, we deliver all-encompassing, turnkey filtration solutions that meet the diverse needs of our esteemed clientele.
SLOT proudly holds the ISO9001 quality management system certification and has also been certified by SGS, underscoring our unwavering commitment to excellence. We meticulously comply with both international standards and industry-specific regulations, tailoring our product designs and manufacturing processes to fulfill unique client specifications. Our dedication lies in crafting filtration equipment and components that epitomize high performance and top-tier quality.
Our SLOT automatic self-cleaning filter systems are the go-to choice across myriad industries, including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged strong, enduring partnerships with a host of prestigious industrial enterprises on both a national and international scale.
Celebrated for our exceptional product filter performance, state-of-the-art manufacturing capabilities, and dedicated professional services, SLOT is synonymous with excellence. For those seeking superior filter system performance, uncompromising quality, and stellar service, SLOT stands as your trusted partner for the long haul.

Quality Management
FAQ
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 Gravel Pre-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?
We offer 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.