The Quick Open series of multi-bag filter housings is a revolutionary product featuring an ingenious self-balancing V-clamp locking mechanism. This breakthrough innovation transcends conventional designs, offering unparalleled efficiency and ease. With a design focused on high flow rates, its single-handed, user-friendly operation is perfect for applications that demand frequent element change-outs and smooth transitions.
Experience minimal downtime, which significantly cuts operating costs and enhances the efficiency of batch processes, ensuring seamless production every time.
Our system's efficiency is remarkably enhanced by a fully-interlocked pressure release, guaranteeing safety and peace of mind under all conditions. Equipped with a sturdy, corrosion-free V-clamp and an exclusive screw-drive mechanism, this housing promises longevity, providing years of reliable service to users.
Elevate your filtration experience with our comprehensive range of precise and durable filter-bag materials, each expertly crafted to cater to specific demands:
PP (Polypropylene): This versatile material, rated ideally at 1-200µm, withstands temperatures up to 70°C, making it adaptable across a broad spectrum of settings and applications.
PE (Polyester): Known for its durability, it offers an extensive range of 1-200µm and can withstand temperatures up to 120°C, perfectly suited for rigorous and demanding applications.
Nylon: With an impressive range of 25-800µm and high-temperature resistance up to 150°C, this material is engineered for the most challenging and demanding environments.
Discover the cutting-edge potential of our Stainless Steel Multi-bag Filter Machine, a true embodiment of excellence and precision in engineering. Explore our Filter-Bag Numbers along with their Detailed Specifications to suit your specific needs: 1#: Dimensions of 180mmD x 410mmL; 2#: Dimensions of 180mmD x 810mmL; 3#: Dimensions of 102mmD x 210mmL; 4#: Dimensions of 102mmD x 380mmL. Our diverse selection caters to a wide range of filtration requirements, providing bespoke solutions tailored for every need.

The multi-bag filter system epitomizes advanced engineering, meticulously crafted to transform your filtration experience with unparalleled precision. By strategically positioning the inlet beneath the filter bags, the system expertly directs the filter medium upwards into the housing's upper chamber. From this prime location, it guides the flow with impeccable accuracy, elegantly channeling through the filter bags. This sophisticated process captures impurities with finesse, delivering an exceptionally pure filtrate with unmatched grace and efficiency. Discover the pinnacle of pristine filtration with our cutting-edge design.
To maintain supreme filtration performance, vigilant monitoring of the filter bags is crucial. As impurities accumulate, forming dense filter cakes and resulting in a differential pressure of 0.14-0.17 MPa, it becomes clear that bag replacement is necessary. During this essential maintenance phase, ensure the system is carefully shut down, the pressure relief valve gently opened, and the filter cover delicately removed. Once new bags are installed, the system is poised to resume its impeccable operation. Our eco-friendly filter bags can be cleaned and reused, yet should be replaced if significantly impaired, to ensure consistent performance and reliability. This maintenance cycle is paramount to achieving efficiency and extended operational longevity in your filtration 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 features an innovative quick-opening flange ring, securely anchored with robust bolt fastening for unrivaled pressure resistance. This design assures exceptional reliability and performance. The advanced booster spring mechanism simplifies operations, enabling swift and effortless filter bag replacements. Experience a dramatic reduction in downtime and substantial boosts in productivity, while minimizing worker fatigue and significantly enhancing operational efficiency with this meticulously engineered system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Unveil the ingenuity of our revolutionary spring-balance mechanism, offering seamless and labor-saving operation of the upper cover. With smooth adjustability from 0 to 105°, it supports a sleek clamshell design, ensuring zero liquid spills upon opening. This efficient structure optimizes spatial utilization and streamlines your workflow, maximizing every inch of your operational space.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our advanced compression spring pressure piece guarantees a flawless 360° seal with the filter bag, completely eliminating side leakage. The fortified filter bag, designed to support the durable flower plate, withstands higher pressures while minimizing pressure loss, thus enhancing filtration efficacy. With a plethora of customization options, we provide customer flow configurations from 2 to 24 bags, meticulously engineered to satisfy your specific requirements seamlessly.
Experience the ease of smooth, effortless filter bag changes with our state-of-the-art spring locking device, ensuring a seamless workflow.
Meticulously crafted, our basket gasket guarantees absolute leakage prevention, delivering unwavering and dependable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We offer an extensive array of customizable inlet and outlet direction options, ensuring precise alignment with your installation needs and preferences. The versatile flange diameter, adjustable from DN25 to DN250, guarantees perfect integration with your current system, offering unmatched adaptability and flexibility.
Hebei Slot Filter Technology Co., Ltd. proudly presents our masterfully crafted bag filters, showcasing the epitome of precision engineering. Each filter is carefully designed to meticulously eliminate even the tiniest impurities from a variety of liquids. These essential components are integral to numerous industries, providing unwavering precision and reliability that consistently exceed expectations.
- Refined Chemicals Sector: Unlock the ultimate potential of high-precision filtration, significantly enhancing the quality and purity of chemical products with our cutting-edge solutions. Paint and Ink Filtration Excellence: Our filters guarantee vibrant colors and impeccable finishes, setting the benchmark in paint and ink filtration with unmatched precision and reliability.
- Oil & Gas Sector Innovations: Step into the future with our pioneering filtration solutions that significantly boost efficiency and safety in the oil and gas industry, heralding a new era of technological advancement. Delivering dependable solutions for the intricate challenges of produced water filtration and well injection water purification, ensuring optimal performance, environmental compliance, and peace of mind.
- Food & Beverage Industry Solutions: Enhance quality and safety standards with our specialized filtration systems tailored to meet the diverse processing demands of the food and beverage industry. Our expert filtration solutions are meticulously designed for beer and wine production, juice concentrate clarification, and ensuring pristine processing of soft drinks and bottled water, consistently maintaining exceptional quality and taste.
- Automotive Manufacturing Precision: Propel excellence with our advanced filtration solutions for spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration, ensuring optimal quality in every application. Experience enhanced performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. Our advanced solutions also guarantee flawless filtration for parts cleaning fluids, optimizing precision and performance in every facet of application.
- Pulp & Paper Industry Applications: Deliver advanced coating filtration solutions meticulously designed to cater to the unique and rigorous demands of the pulp and paper industry, ensuring uninterrupted and flawless production processes. Our advanced coating filtration solutions are tailored to meet the distinctive needs of the pulp and paper industry, guaranteeing seamless production processes and impeccable results.
- Machining Industry Efficiency: Lead the charge in boosting tool performance and longevity with our superior filtration technology, setting new standards in the machining industry. Our top-tier filtration solutions enhance the efficiency and performance of machine tool coolant circulation, cleaning fluids, and effectively manage hydraulic and lubricating oils, driving productivity in machining to new heights.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon in the vibrant and ever-evolving industrial landscape, specializing in precision filtration and pioneering self-cleaning filtration solutions. Our stellar reputation is built upon more than a decade of profound expertise in both innovative design and cutting-edge research & development. By harnessing the power of advanced filtration technology, we provide an extensive array of superior quality product resources. Our comprehensive solutions deliver fully-integrated filtration systems, meticulously designed to meet the intricate and sophisticated needs of our esteemed clientele.
At SLOT, we take immense pride in our recognition through the prestigious ISO9001 quality management system certification and accolades from SGS, which underscore our unwavering commitment to unparalleled excellence. We adhere scrupulously to international standards and specific industry regulations, ingeniously crafting our product designs and manufacturing processes to perfectly align with each client's distinct requirements. Our passion is poured into creating exceptional filtration equipment and components that set the benchmark for performance and quality.
Our automatic self-cleaning filter systems by SLOT are the preferred choice across a vast array of industries. These encompass petrochemicals, fine chemicals, energy and power sectors, water treatment, automotive manufacturing, food and beverage, as well as metal processing. We have established strong and enduring partnerships with numerous distinguished industrial enterprises, both within our home country and across the globe.
Renowned for delivering outstanding filter performance, state-of-the-art manufacturing capabilities, and unwavering professional commitment, SLOT epitomizes excellence. For those seeking unmatched filter system performance, impeccable quality, and extraordinary service, SLOT is your steadfast partner in achieving lasting success.

Quality Management
FAQ
1. Who are we?
Founded in vibrant Hebei, China, in 2014, Hebei Slot Filter Technology Co., Ltd. has emerged as a beacon of innovation. Our pioneering solutions echo powerfully across North America (40%), Western Europe (30%), South Asia (10%),
Africa (10%), and the Middle East (10%). Our dynamic team of 11 to 50 skilled professionals is fervently dedicated to excellence and breaking new ground.
2. How can we guarantee quality?
We are steadfast in our commitment to unparalleled quality. Prior to full-scale production, we conduct sample evaluations to ensure precise alignment with standards.
Every shipment is subjected to thorough inspections, maintaining our strict quality benchmarks with unmatched consistency and precision.
3. What can you buy from us?
Explore our extensive assortment of expertly crafted products, including the precision-engineered Johnson Screen, the resilient Bridge Slotted Well Screens, and the Sand Control Well Screens, as well as GravelPre-pack Screen, innovative Pipe-based screens, sturdy Perforated Pipes, and high-quality API/5CT Casing and Tubing. Each product is meticulously designed to surpass performance expectations.
4. Why should you buy from us, not from other suppliers?
1. We provide a comprehensive range of OEM & ODM solutions, expertly customizing products to fulfill your specific requirements.
2. Our proficient team excels in bespoke design and development, transforming your visions into reality with custom drawings.
3. With our state-of-the-art R&D team, we deliver pioneering solutions, setting new benchmarks in the industry.
5. What services can we provide?
We offer versatile delivery choices, including: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accept a broad array of payment currencies like USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, facilitating a seamless transaction experience.
For ultimate convenience, we support diverse payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow, offering you maximum ease.
Communicate effortlessly with us in a multitude of languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Eager to become an agent in your local market? Reach out to us and let's explore exciting opportunities together.