Introducing the Quick Open series of multi-bag filter housings, where cutting-edge design meets unparalleled convenience. Marvel at its state-of-the-art self-balancing V-clamp locking mechanism, an innovative leap that transforms traditional methodologies. This breakthrough offers a seamless, single-handed operation, making it exceptionally user-friendly and the ultimate choice for applications demanding superior high flow rates. Crafted to perfection, this system is tailor-made to meet the needs of operations requiring frequent element changes. It expertly minimizes downtime, significantly slashing operating expenses while ensuring a smooth and seamless batch processing experience that is second to none.
Experience new heights in efficiency with a fully-interlocked pressure release system that guarantees safety under all conditions. Engineered with a robust, corrosion-resistant V-clamp and a proprietary screw-drive mechanism, this housing delivers years of dependable and consistent service, solidifying its place in the realm of reliable industrial solutions.
Elevate your filtration system with our range of precise, durable filter-bag materials that cater to your specific needs:
PP: With a precision rating of 1-200µm, it withstands temperatures up to 70°C. This ensures unmatched versatility and adaptability across a spectrum of environmental conditions.
PE: Boasting a range of 1-200µm, this material withstands temperatures up to 120°C, making it the ideal choice for more demanding and rigorous applications.
Nylon: Offering an impressive 25-800µm range and enduring temperatures up to 150°C, this material is perfect for the most challenging and extreme environments.
Explore the unparalleled technical capabilities of our Stainless Steel Multi-bag Filter Machine, designed for excellence: Filter-Bag Numbers & their Detailed 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 the varied and specific needs of our discerning clientele.
In an ingeniously designed process, the multi bag filter system utilizes a strategically positioned inlet, placed 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 state-of-the-art multi-bag filter showcases a groundbreaking quick-opening flange ring fortified with bolt fastening, offering unparalleled pressure resistance. Enhanced by a sophisticated booster spring mechanism, this system not only simplifies operations but also optimizes them, making it the ideal choice for frequent filter bag replacements. Experience a dramatic reduction in downtime, which in turn catapults productivity to new heights while minimizing worker exhaustion and elevating overall operational efficiency.
2. SPRING-BALANCE MECHANISM
Our brilliantly designed spring balance mechanism revolutionizes the operation of the upper cover, allowing for effortless, energy-efficient lifting and positioning anywhere from 0 to 105° as required. This robust yet straightforward support framework, paired with a sleek clamshell design, effectively prevents liquid spillage when the lid is opened, conserving valuable space and optimizing your work environment.
3. THE CORE OF THE BAG FILTER SYSTEM
Introducing our cutting-edge compression spring pressure piece, which delivers a perfect 360° seal with the filter bag, eliminating any risk of side leakage. The filter bag, reinforced for durability, is crafted to support the sturdy flower plate, enabling it to endure higher pressures while minimizing pressure loss, ultimately maximizing its filtration potential. We provide versatile customization options, accommodating between 2 and 24 bags to precisely meet your unique flow requirements.
Ingenious spring locking device facilitates seamless filter bag changes.
The expertly designed basket gasket ensures total prevention of leakage.
4. DIRECTION OF INLET AND OUTLET
Our product offers adaptable inlet and outlet direction options, meticulously tailored to fit your specific installation and operational requirements. Furthermore, the flange diameter is customizable, spanning from DN25 to DN250, guaranteeing seamless integration with your existing system.
Our expertly engineered bag filters are meticulously crafted to efficiently extract even the most minute impurities from liquids. These filters stand as indispensable assets across a wide range of industries, delivering unparalleled precision and unwavering reliability.
- Refined Chemicals Sector Mastery. Unparalleled Paint and Ink Filtration Excellence.
- Revolutionary Oil & Gas Sector Innovations. Unwavering reliable solutions for filtering produced water, and purifying well injection water with exceptional efficiency.
- Comprehensive Food & Beverage Industry Solutions. Expert filtration crafted for beer and wine production, the precise clarification of juice concentrates, and the immaculate processing of soft drinks and bottled water.
- Precision in Automotive Manufacturing. Enhanced automotive spray coating pretreatment, electrophoretic paint processing, as well as premium filtration for finishes and primers. Additionally, offers impeccable filtration for parts cleaning fluids.
- Innovative Pulp & Paper Industry Applications. Cutting-edge advanced coating filtration solutions.
- Machining Industry Efficiency Redefined. Unrivaled filtration for machine tool coolant circulation, including cleaning fluids, as well as optimized purification of hydraulic and lubricating oils.



Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands at the pinnacle of the industrial precision filtration sector, leading with innovation and cutting-edge self-cleaning filtration solutions. With over ten years of distinguished expertise, our company excels in design, research, and development, leveraging state-of-the-art filtration technology to offer a comprehensive range of top-tier product resources. We specialize in delivering fully integrated, turnkey filtration solutions crafted to meet the varied specifications of our valued clientele.
SLOT is proud to be recognized with the ISO9001 quality management system certification and SGS accreditation, which highlight our steadfast pursuit of excellence. We diligently adhere to international standards and specific industry regulations, customizing our product designs and manufacturing processes to align with unique client demands. Our unwavering focus is on developing filtration equipment and components that exemplify superior performance and premium quality.
Our SLOT automatic self-cleaning filter systems are the preferred choice across a wide array of industries, including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have established strong, lasting partnerships with numerous prestigious industrial enterprises both nationally and internationally.
Renowned for our outstanding product filter performance, advanced manufacturing capabilities, and unwavering professional services, SLOT is synonymous with excellence. For those aspiring to achieve superior filter system performance, unmatched quality, and exemplary service, SLOT stands as your dependable partner for the long term.

Quality Management: We are committed to excellence, employing rigorous processes to ensure that every product not only meets but exceeds your expectations.
FAQ
1. Who are we?
Based in Hebei, China, since 2014, we are a dynamic enterprise, at the forefront of innovation, exporting our cutting-edge solutions to North America (40%), Western Europe (30%), and South Asia (10%).
Africa (10%), and the Middle East (10%). Our dedicated team of 11 to 50 skilled professionals is driven by a passion for excellence and innovation.
2. How can we guarantee quality?
We ensure impeccable quality by providing a pre-production sample to affirm standards before commencing mass production.
Our stringent final inspections guarantee that each shipment maintains unparalleled consistency and superior quality.
3. What can you buy from us?
Explore our diverse product range, including precision-crafted Johnson Screen, robust Bridge Slotted Well Screens, and Sand Control Well Screens, complemented by GravelPre-pack Screens, cutting-edge Pipe-based screens, reliable Perforated Pipes, and premium API/5CT Casing and Tubing.
4. Why should you buy from us, not from other suppliers?
1. We provide extensive OEM & ODM support, meticulously tailoring products to your specific requirements.
2. Our expert team aids in designing and developing custom drawings, transforming your visions into reality.
3. With our professional R&D team, we perpetually innovate to deliver cutting-edge solutions.
5. What services can we provide?
We offer versatile delivery terms including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, and DES;
We accommodate a variety of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, and CHF;
For your convenience, we support diverse payment types: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow;
Communicate seamlessly with us 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? Connect with us, and let's explore exciting partnership opportunities together.