Introducing our Quick Open series multi-bag filter housings, crafted with an innovative self-balancing V-clamp locking mechanism-a revolutionary leap from traditional designs. Experience the ease of operation with its single-handed, user-friendly interface, making it the ultimate choice for high-flow applications. Perfectly suited for environments demanding frequent element replacements. Its design minimizes downtime, effectively lowering operational costs and ensuring seamless batch process continuity.
Efficiency reaches new heights with our fully-interlocked pressure release system, guaranteeing safety under all conditions. Constructed with a durable, corrosion-resistant V-clamp and unique screw-drive mechanism, this housing promises users longevity and reliable service for years to come.
Personalize your filtration with a choice of filter-bag material and precision:
PP (1-200 µm, withstands up to 70°C),
PE (1-200 µm, withstands up to 120°C),
Nylon (25-800 µm, withstands up to 150°C)
Stainless steel Multi bag filter machine technical data: Filter-Bag No. & size specifications: 1# (180 mm D x 410 mm L), 2# (180 mm D x 810 mm L), 3# (102 mm D x 210 mm L), 4# (102 mm D x 380 mm L)
Expertly designed for efficiency, the multi bag filter system's inlet is strategically placed lower than the filter bags, allowing the filter medium to seamlessly enter from the inlet. It gracefully ascends to the housing's upper echelon above the filter bags and then elegantly descends, flowing through the filter bags to achieve premium filtration. In this sophisticated process, impurities are meticulously captured within the filter bags, while the pristine filtrate makes its exit from the outlet, ready for use.
Filter bags are due for replacement when a significant layer of impurities forms on them, creating filter cakes, and the differential pressure gauges between 0.14 and 0.17 MPa. During replacement, the filter system needs to be temporarily shut down. It's essential to open the pressure relief valve and remove the filter cover, ensuring a seamless transition as you replace the filter bags. These bags can often be given a second life through thorough cleaning; however, if they suffer extensive damage, they must be replaced. This maintenance ensures optimal performance and longevity of the system.
Exquisite Craftsmanship 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 - ENHANCED PRESSURE RESISTANCE
Our innovative multi-bag filter system is engineered with a quick-opening flange ring bolt mechanism, designed to withstand enhanced pressure. This design incorporates a booster spring mechanism, ensuring simplicity and ease of use, ideal for operations requiring frequent filter bag replacements. Experience minimized downtime, augmented productivity, reduced labor intensity, and improved work efficiency, all with our cutting-edge design.
2. SPRING-BALANCE MECHANISM
Our exclusive spring balance mechanism offers effortless and labor-saving operations to open and close the upper cover. This advanced design allows the cover to remain stable at any angle between 0-105° during operation. The durable and straightforward spring balance support structure, combined with a compact clamshell design, ensures no spillage of liquid when the lid is open.
3. THE CORE OF THE BAG FILTER SYSTEM
Featuring a compression spring pressure piece, our system guarantees a 360° seal around the filter bag, ensuring a flat, leak-proof surface without side leakage. The filter bag is reinforced to support the flower plate for higher pressure tolerance, minimizing pressure loss and enhancing the filtering effect. We cater to diverse customer flow requirements, supporting customizations ranging from 2 to 24 bags.
Effortlessly change filter bags with our spring locking device
Achieve 100% leak prevention with our basket gasket
4. CUSTOMIZABLE INLET AND OUTLET DIRECTION
Tailored to meet your usage and installation preferences, our system allows the customization of inlet and outlet directions, with flange diameters ranging from DN25 to DN250.
Bag filters are essential in eradicating trace fine impurities from various liquids, finding widespread applications across diverse industries.
- Fine Chemicals: Perfect for handling the delicate purification processes required in fine chemical production. Paint and Ink Filtration: Ensures smooth and flawless finishes by meticulously filtering impurities.
- Oil & Gas: A critical component in maintaining purity in this robust industry. Produced Water Filtration & Well Injection: Optimize water quality for production and injection, enhancing operational efficiency.
- Food & Beverage: A vital role in maintaining purity and taste. Beer and Wine Filtration; Juice Clarification; Soft Drink and Bottled Water: Key processes for clarity and safety in production.
- Automotive Manufacturing: Ensuring that every aspect from coating to cleaning meets the highest quality standards. Automotive Spray Coating, Electrophoretic Paint, Finish & Primer Filtration; Parts Cleaning Solutions: Enhance vehicle durability and appearance.
- Pulp & Paper: Integral in providing smooth, high-quality finishes. Coating Filtration: Guarantees perfect application and consistency.
- Machining: Maintaining the integrity of fluids for optimal machine performance. Machine Tool Coolant, Cleaning Fluid, and Hydraulic Oil: Ensures precise operations and longevity of machinery.



Hebei SLOT Filter Technology Co., Ltd. An industrial leader, Hebei SLOT Filter Technology Co., Ltd is a dynamic enterprise devoted to the realm of precision filtration and self-cleaning filtration. Bolstered by over ten years of unparalleled industry expertise, we excel with our remarkable design and R&D prowess. By harnessing cutting-edge filtration technology paired with top-tier product resources, we deliver all-encompassing, one-stop filtration solutions tailored to our clients' needs.
SLOT is a proud bearer of the esteemed ISO9001 quality management system certification and boasts accolades from SGS. We steadfastly conform to international standards and meticulously abide by industry-specific regulations and bespoke client specifications during our product design and manufacturing processes. Our unwavering mission is to innovate and produce high-performance, top-quality filtration equipment and precision filtration components.
The SLOT automatic self-cleaning filter system shines across diverse sectors such as petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. Our steadfast commitment to excellence has forged enduring partnerships with numerous esteemed industrial enterprises, both within our home country and across the globe.
Renowned for our outstanding product filter performance, cutting-edge manufacturing capabilities, and impeccable professional services, SLOT is a beacon of reliability and recognition. When seeking superior performance, unmatched quality, uncompromising safety, and exemplary service in filter systems, SLOT emerges as your trusted, long-term ally.

Quality Management
FAQ
1. Who are we?
We are proudly rooted in Hebei, China and have been flourishing since 2014. Our reach spans the globe with a primary focus on North America, accounting for 40% of our sales, followed by Western Europe at 30%, and South Asia at 10%.
Additionally, we cater to Africa and the Mid East, each comprising 10% of our market share. In our bustling office, we have a dedicated team of approximately 11-50 skilled professionals.
2. How can we guarantee quality?
We ensure excellence with a rigorous approach: a meticulous pre-production sample is crafted before commencing mass production.
Furthermore, a comprehensive final inspection is conducted to guarantee quality before every shipment is dispatched.
3. What can you buy from us?
Explore our diverse offerings, including the renowned Johnson Screen and the innovative Bridge Slotted Well Screens, alongside Sand Control Well Screens and Gravel. Our repertoire extends to Pre-pack Screens, Pipe-based Screens, high-quality Perforated Pipes, and API/5CT Casing and Tubing for all your filtration and well construction needs.
4. Why should you buy from us, not from other suppliers?
1. We offer unparalleled OEM & ODM support for customized solutions.
2. Our expert team collaborates with customers to design precise, tailored drawings that fulfill unique requirements.
3. With a dynamic and professional R&D group, we consistently innovate to deliver advanced products.
5. What services can we provide?
We accommodate a wide array of delivery terms, including FOB, CFR, CIF, and EXW, among others, ensuring flexibility and convenience in every transaction.
Our payment systems accept a multitude of currencies such as USD, EUR, JPY, CAD, and more, providing ease and choice.
Preferred payment methods include T/T, L/C, D/P, D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow, facilitating smooth and secure transactions.
Our global communication is enhanced with proficiency in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
If you're interested in becoming our esteemed agent in your local market, feel free to reach out to us for an exciting opportunity.