The revolutionary Quick Open series multi-bag filter housings boast a state-of-the-art self-balancing V-clamp locking mechanism, a true breakthrough from traditional designs. Its intuitive single-handed, user-friendly operation makes it the premier choice for high flow rate applications that demand frequent element change-outs.
Experience minimal downtime, significantly reduced operating costs, and streamlined batch processes with this innovative solution.
Efficiency reaches new heights with a fully-interlocked pressure release, ensuring unparalleled safety under all conditions. Built with a robust, corrosion-resistant V-clamp and a distinctive screw-drive mechanism, this housing promises users decades of dependable service.
Enhance your filtration journey with our broad selection of meticulously crafted filter-bag materials, each designed to meet distinctive needs with precision and durability:
PP (Polypropylene): Expertly rated at 1-200µm, this versatile material can withstand temperatures up to 70°C, making it perfect for a wide array of settings and applications.
PE (Polyester): This resilient material offers a substantial range of 1-200µm and can withstand temperatures up to 120°C, ideal for the most exacting and rigorous applications.
Nylon: With an impressive range of 25-800µm and outstanding high-temperature resistance up to 150°C, this material is designed for the most demanding and challenging environments.
Unveil the cutting-edge capabilities of our Stainless Steel Multi-bag Filter Machine, a masterpiece of excellence and precision engineering. Delve into our Filter-Bag Numbers along with their Comprehensive Specifications: 1#: Dimensions are 180mmD x 410mmL; 2#: Dimensions are 180mmD x 810mmL; 3#: Dimensions are 102mmD x 210mmL; 4#: Dimensions are 102mmD x 380mmL. This diverse selection meets an extensive range of filtration needs, providing customized solutions for every requirement.

The multi bag filter system represents the epitome of advanced engineering, meticulously designed to revolutionize the filtration experience with unparalleled precision. Featuring a strategically positioned inlet beneath the filter bags, the system graciously guides the filter medium upwards into the housing's upper chamber. From this vantage point, it gracefully directs the flow downwards with impeccable accuracy, expertly channeling through the filter bags. This sophisticated process adeptly captures impurities, delivering nothing less than the purest filtrate with unmatched grace and efficiency. Experience the zenith of pristine filtration with our cutting-edge design.
To maintain supreme filtration performance, diligent monitoring of the filter bags is essential. As impurities gather and form dense filter cakes, leading to a differential pressure of 0.14-0.17 MPa, it becomes evident that bag replacement is crucial. During this critical maintenance stage, ensure the system is carefully shut down, the pressure relief valve gently opened, and the filter cover delicately removed. Once fresh bags are installed, the system stands ready to resume its impeccable operation. Our filter bags, designed for eco-friendliness, can be cleaned and reused, yet should be replaced if significantly impaired to preserve consistent performance and dependability. This maintenance cycle is key to efficiency and extended operational longevity in your filtration pursuits.
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 state-of-the-art multi-bag filter system is designed with an advanced quick-opening flange ring, complemented by robust bolt fastening. This ensures unmatched pressure resistance, delivering steadfast reliability and exceptional performance. The cutting-edge booster spring mechanism simplifies operation, making frequent filter bag changes effortless. Benefit from a remarkable reduction in downtime, substantial productivity boosts, minimized worker fatigue, and a significant enhancement in operational efficiency with this meticulously crafted system.
2. REVOLUTIONARY SPRING-BALANCE MECHANISM
Experience the ingenuity of our revolutionary spring-balance mechanism, which provides effortless and labor-saving operation for the upper cover. With smooth adjustability from 0 to 105°, it features a sleek, clamshell design that ensures zero liquid spills upon opening. This efficient design optimizes spatial utilization and streamlines your workflow, maximizing every inch of your operational space for peak efficiency.
3. ESSENTIAL CORE OF THE BAG FILTER SYSTEM
Our cutting-edge compression spring pressure piece guarantees a perfect 360° seal with the filter bag, eradicating any possibility of side leakage. The reinforced filter bag design supports the durable flower plate, capable of enduring higher pressures while minimizing pressure loss, thereby elevating filtration efficacy. With a spectrum of customization options, we offer customer flow configurations from 2 to 24 bags, precisely tailored to meet your unique requirements.
Enjoy smooth, effortless filter bag changes with our innovative spring locking device, ensuring a seamless workflow.
Our meticulously crafted basket gasket is engineered to guarantee absolute leakage prevention, delivering consistent and reliable performance.
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
We provide a comprehensive array of customizable inlet and outlet direction options, ensuring precise alignment with your installation needs and user preferences. The adaptable flange diameter, adjustable from DN25 to DN250, ensures perfect integration with your existing system, offering unparalleled adaptability and flexibility.
Our expertly engineered bag filters stand as a beacon of precision and craftsmanship. Designed with an unparalleled level of detail, they effectively capture even the tiniest impurities from fluids. These vital filters are the backbone of various industries, providing unrivaled precision and steadfast reliability that's second to none.
- Refined Chemicals Sector: Harnessing the power of high-precision filtration technology to enhance the quality and purity of chemical products. Elevate your processes with our advanced solutions. Paint and Ink Filtration Excellence: Guaranteeing vibrant hues and impeccable finishes, our filters are unmatched in the realm of paint and ink filtration, setting a new standard of quality.
- Oil & Gas Sector Innovations: At the cutting edge of filtration technology, we deliver state-of-the-art solutions that enhance both efficiency and safety in the ever-evolving oil and gas industry. We offer dependable solutions to tackle the intricate challenges of produced water filtration and well injection water purification, ensuring peak performance and rigorous environmental compliance.
- Food & Beverage Industry Solutions: Pioneering in quality and safety enhancement with custom filtration solutions catered to the diverse needs of food and beverage processing. Providing expert filtration customized for beer and wine production, juice concentrate clarification, and upholding exceptional quality and taste in soft drinks and bottled water processing.
- Automotive Manufacturing Precision: Elevate your manufacturing processes with advanced filtration solutions for spray coating pretreatment and electrophoretic paint processing, ensuring superior finishes and primer applications. Our solutions deliver unparalleled performance in automotive spray coating pretreatment, electrophoretic paint processing, and superior finish and primer filtration. We also guarantee flawless filtration for parts cleaning fluids, optimizing both performance and precision in every application.
- Pulp & Paper Industry Applications: Offering cutting-edge coating filtration solutions crafted to meet the specific and rigorous demands of the pulp and paper industry. Delivering advanced coating filtration solutions meticulously tailored for the distinctive needs of the pulp and paper industry, ensuring seamless and flawless production operations.
- Machining Industry Efficiency: Setting new benchmarks in enhancing tool performance and longevity through our superior filtration technologies. Providing exceptional filtration that improves the efficiency and effectiveness of machine tool coolant circulation, cleaning fluids, and the management of hydraulic and lubricating oils, significantly boosting overall machining productivity.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation in the vibrant world of industrial precision filtration and self-cleaning filtration solutions. With an impressive legacy extending beyond a decade, we masterfully blend exceptional expertise in design, research, and development. Our cutting-edge filtration technology enables us to present a comprehensive array of high-quality product resources. Offering turnkey filtration systems, we adeptly cater to the multifaceted and sophisticated needs of our esteemed clients.
At SLOT, our unwavering dedication to excellence is underscored by our esteemed ISO9001 quality management system certification and recognition from SGS. We strictly adhere to international standards and specific industry regulations, meticulously tailoring our product designs and manufacturing processes to meet the distinct specifications of each client. Our commitment ensures that our filtration equipment and components set benchmarks for exceptional performance and unmatched quality.
Our SLOT automatic self-cleaning filter systems are the preferred choice across an expansive range 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 enduring partnerships with numerous esteemed industrial enterprises, both within our nation and across the globe.
Renowned for our superior product filter performance, state-of-the-art manufacturing prowess, and dedicated professional services, SLOT epitomizes excellence. For those who seek unparalleled filter system performance, superior quality, and outstanding service, SLOT is your committed partner in achieving lasting success.

Quality Management
FAQ
1. Who are we?
Founded in the vibrant and innovative hub of Hebei, China, in 2014, we are proud to introduce ourselves as Hebei Slot Filter Technology Co., Ltd., a trusted leader synonymous with state-of-the-art innovation. Our groundbreaking solutions and services have made a significant impact across the globe, particularly in North America (40%), Western Europe (30%), and South Asia (10%).
Our influence also extends to Africa (10%) and the Middle East (10%). With a dedicated team of 11 to 50 skilled professionals, we are driven by a passion for excellence and a commitment to achieving extraordinary results.
2. How can we guarantee quality?
Our steadfast commitment to quality is the cornerstone of our operations. Prior to full-scale production, we ensure that our standards are impeccably validated through rigorous sample evaluations, guaranteeing flawless alignment and superior quality.
Every shipment is subjected to thorough, meticulous inspections, ensuring that our rigorous quality benchmarks are not only met but consistently exceeded with precision and consistency.
3. What can you buy from us?
Explore our extensive and expertly crafted product line, featuring the precision-engineered Johnson Screen, durable Bridge Slotted Well Screens, and Sand Control Well Screens. These cutting-edge products are complemented by GravelPre-pack Screens, innovative Pipe-based screens, robust Perforated Pipes, and premium API/5CT Casing and Tubing. Every product is meticulously designed to surpass performance expectations, ensuring exceptional quality and reliability.
4. Why should you buy from us, not from other suppliers?
1. We offer a comprehensive suite of OEM & ODM solutions, expertly tailoring products to align with your distinct requirements and ensuring a perfect fit for your needs.
2. Our team of experts excels in custom design and development, turning your visionary ideas into a tangible reality with bespoke drawings and innovative solutions.
3. With our state-of-the-art R&D team, we are at the forefront of delivering cutting-edge solutions, setting new benchmarks in industry standards and innovation.
5. What services can we provide?
Experience the flexibility of our delivery options, including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, and DES.
We facilitate a seamless transaction process with a wide array of accepted payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, ensuring convenience and peace of mind.
For your ultimate convenience, we support a variety of payment methods: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow, offering you unparalleled ease and flexibility.
Communicate with ease and confidence, leveraging our multilingual support in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Are you interested in becoming an agent in your local market? Reach out to us and let's explore thrilling opportunities for collaboration and growth together.