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 pioneering achievement redefines conventional designs, offering a seamless, single-handed operation that is exceptionally user-friendly. It stands as the undisputed choice for applications with high flow rate demands, ensuring unparalleled performance. Meticulously designed for environments necessitating frequent element change-outs, this cutting-edge system minimizes downtime, thus significantly reducing operating costs while ensuring a smooth and efficient batch processing experience.
Experience a new pinnacle of efficiency with a fully-interlocked pressure release, ensuring safety across all scenarios. With construction featuring a robust, corrosion-resistant V-clamp and a proprietary screw-drive mechanism, this housing guarantees years of dependable service for its users.
Elevate your filtration solution by choosing from a selection of precise and durable filter-bag materials tailored to your needs:
PP: Offers a precision rating of 1-200µm and withstands temperatures up to 70°C, ensuring versatility across a wide range of settings.
PE: With a range of 1-200µm, this material endures temperatures up to 120°C, making it ideal for more demanding applications.
Nylon: Boasts an impressive 25-800µm range and withstands up to 150°C, perfect for the most challenging environments.
Explore the technical mastery of our Stainless Steel Multi-bag Filter Machine with confidence: Filter-Bag Numbers & their Specifications: 1#: Sized at 180mmD x 410mmL; 2#: At 180mmD x 810mmL; 3#: Measuring 102mmD x 210mmL; 4#: 102mmD x 380mmL, offering diverse options to meet varied filtration needs.
In a brilliantly orchestrated filtration process, our multi-bag filter system features a thoughtfully engineered inlet that is strategically positioned beneath the filter bags. As the filtration medium gracefully flows in, it ascends to the upper chamber of the housing, ensuring a seamless transition. The medium then begins its descent, effortlessly permeating through the filter bags, achieving unmatched filtration efficiency. This innovative method meticulously captures impurities within the filter bags, while allowing only the purest filtrate to exit with finesse through the outlet.
To maintain peak performance, it is paramount to diligently monitor the condition of the filter bags. As impurities accumulate, forming filter cakes and inducing a differential pressure ranging from 0.14-0.17 MPa, timely replacement of the bags is essential. During this critical maintenance, ensure the system is shut down properly, the pressure relief valve is activated, and the filter cover is carefully removed. Once new bags are securely installed, the system can be swiftly re-energized. Remarkably, filter bags are designed for cleaning and reuse, contributing to environmental sustainability, but should be promptly replaced if they incur significant damage. This meticulous cycle guarantees both efficacy and durability 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
Discover the unmatched resilience and efficiency of our multi-bag filter, ingeniously designed with a quick-opening flange ring fortified by bolt fastening. This innovative enhancement not only ensures remarkable pressure resistance but also incorporates a booster spring mechanism that transforms operation into a seamless experience. It's the ideal solution for environments requiring frequent filter bag changes, dramatically minimizing downtime and soaring productivity to new heights. This pioneering design not only alleviates worker fatigue but also enhances overall operational efficiency, making it a cornerstone for industrial excellence.
2. SPRING-BALANCE MECHANISM
Experience the effortless elegance of our cutting-edge spring balance mechanism, engineered for smooth, labor-saving functionality. With the capability to position the upper cover anywhere between 0-105° with ease, it adapts perfectly to your operational needs. Its durable support structure, combined with a sleek clamshell design, ensures that no liquid is lost when opening the lid, optimizing space utilization and setting new standards in filtration technology.
3. THE CORE OF THE BAG FILTER SYSTEM
At the heart of our bag filter system lies the advanced compression spring pressure piece, which masterfully crafts a perfect 360° seal with the filter bag to eliminate any possibility of side leakage. Our robust and thickened filter bags are expertly designed to complement the sturdy flower plate, standing strong against higher pressures while minimizing pressure loss for superior filtering performance. We offer a wide array of customization options to match your exact specifications, with capacity ranging from 2 to 24 bags to meet your unique flow requirements.
Streamlined filter bag changes are made simple with our intuitive spring locking device
Our basket gasket is engineered to deliver unbeatable leakage prevention, providing peace of mind with every use
4. DIRECTION OF INLET AND OUTLET
Tailor the direction of your inlet and outlet to seamlessly fit your installation requirements with our customizable options. Our flange diameters, ranging from DN25 to DN250, ensure perfect adaptability, providing a flawless fit within your system with ease and precision.
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.
- In the Refined Chemicals Sector, our state-of-the-art bag filters provide unparalleled filtration solutions, ensuring the highest quality of chemical processing. Experience Paint and Ink Filtration Excellence with our innovative solutions that deliver immaculate precision and consistency, enhancing product quality at every stage.
- In the dynamic Oil & Gas Sector, our filtration innovations set new standards, delivering robust and reliable performance for a variety of applications. Our reliable solutions ensure optimal produced water filtration and well injection water purification, safeguarding the integrity and efficiency of water management systems.
- Discover premier Food & Beverage Industry Solutions with our cutting-edge filtration technology, ensuring purity and taste in every product. Benefit from expert filtration for beer and wine production, juice concentrate clarification, and the pristine processing of soft drinks and bottled water.
- Automotive Manufacturing Precision is enhanced with our advanced filtration systems, optimizing efficiency and quality in production processes. Our solutions ensure enhanced automotive spray coating pretreatment, electrophoretic paint processing, and impeccable filtration for finish and primer. We also offer perfect filtration for parts cleaning fluids.
- For Pulp & Paper Industry Applications, our advanced filtration solutions guarantee superior performance in coating filtration and more. Experience advanced coating filtration solutions that elevate the quality and consistency of paper and pulp production processes.
- In the Machining Industry, our efficiency-driven filtration solutions provide superior performance for machine tool coolant circulation, cleaning fluids, hydraulic, and lubricating oils. Our superior filtration systems ensure seamless operation and longevity for machine tool coolant circulation, cleaning fluids, hydraulic, and lubricating oils, enhancing machining industry efficiency.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. emerges as a trailblazer in the world of industrial precision filtration and self-cleaning solutions. With an impressive legacy spanning over a decade, our company is a testament to exceptional design, research, and development expertise. By leveraging the forefront of filtration technology and an abundant arsenal of premium product resources, we offer comprehensive, turnkey filtration solutions tailored to satisfy the multifaceted demands of our valued clientele.
SLOT is a proud bearer of the prestigious ISO9001 quality management system certification, alongside accreditation from SGS, which highlights our steadfast dedication to excellence. Our processes are finely tuned to adhere to both global standards and specialized industry regulations, ensuring that our product designs and manufacturing are perfectly aligned with individual client requirements. Our mission is to create filtration equipment and components that exemplify superior performance and top-notch quality.
The SLOT automatic self-cleaning filter systems are the preferred choice across a vast array of industries, including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have cultivated robust, long-lasting relationships with a myriad of esteemed industrial enterprises, both nationally and globally.
Renowned for our remarkable filter performance, cutting-edge manufacturing prowess, and unwavering professional services, SLOT is synonymous with excellence. For those in pursuit of unparalleled filter system performance, uncompromising quality, and exceptional service, SLOT is your steadfast partner for the long journey ahead.

Quality Management
FAQ
1. Who are we?
Nestled in the heart of Hebei, China, since 2014, we are a trailblazing enterprise, committed to driving technological advancement and delivering our cutting-edge filtration solutions to North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our powerhouse team consists of 11 to 50 highly skilled and passionate professionals, all dedicated to excellence and innovation.
2. How can we guarantee quality?
To assure top-notch quality, we offer a pre-production sample that sets the benchmark before embarking on full-scale production.
Each shipment undergoes rigorous and meticulous final inspections, ensuring unwavering consistency and superior quality.
3. What can you buy from us?
Discover our extensive array of products including the precision-engineered Johnson Screen, robust Bridge Slotted Well Screens, and cutting-edge Sand Control Well Screens, complemented by GravelPre-pack Screen, innovative Pipe-based screens, resilient Perforated Pipes, and premium API/5CT Casing and Tubing.
4. Why should you buy from us, not from other suppliers?
1. We deliver holistic OEM & ODM solutions, customizing products to your unique specifications and requirements.
2. Our seasoned experts provide invaluable assistance in the design and development of bespoke drawings, transforming your ideas into reality.
3. Supported by our cutting-edge R&D team, we relentlessly innovate, offering pioneering solutions at the forefront of technology.
5. What services can we provide?
We provide adaptable delivery terms to suit your needs, including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our payment options are versatile, accepting currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;
For your ease, we accommodate a broad spectrum 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 multitude of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Eager to become our representative in your local market? Connect with us, and let's uncover thrilling partnership opportunities together.