The External Automatic Self-cleaning Filter is a marvel of engineering, meticulously crafted to deliver unparalleled efficiency in liquid filtration, including highly viscous substances (up to an impressive 800,000 cps viscosity). This innovative filter ensures uninterrupted flow, even during its sophisticated cleaning cycle, eliminating any need for operator intervention with the process fluid. Constructed from premium stainless steel, the filtration elements are engineered to expertly capture and remove contaminant particles as minuscule as 25 microns (μm). This remarkable TSW filter addresses the common challenges faced by customers, such as the labor-intensive and costly manual cleaning processes, high investment burdens, and significant material wastage. By maintaining an always-clean filter element through its cutting-edge self-cleaning technology, it effectively expels waste liquid rich in impurities, thereby minimizing material wastage. Its prowess in filtering poor-quality water and tackling sticky substances like adhesives, resins, polymers, fats, and more, ensures superior operational efficiency and remarkable performance.
The liquid embarks on its journey through the filter inlet, gracefully navigating inward from the filter element's outer facade. This sophisticated journey continues as the liquid seamlessly connects at the filter element's lower end, culminating its passage at the outlet. In the realm of this innovative system, as impurities accumulate on the filter element's surface, a cleaning symphony is orchestrated either at pre-determined intervals or by sensing a specific pressure difference. The reduction motor, a true marvel of engineering, sets in motion the scraper, which elegantly glides along the filter's outer surface, liberating the impurities with precision. These freed particles descend gracefully, guided by the scraper, to the filter's base. There, the rotating sweeping plate performs its duty, deftly sweeping heavier particles into the sewage collecting chamber. Within this chamber and at the filter's bottom, impurities quietly collect. At appointed intervals, the drain valve springs to life, releasing the high-concentration impurity-laden liquid from the drain port. Should the occasion arise, the expelled residual liquid stands ready to be recycled, further showcasing the filter's dedication to sustainability.
Details photos
Sub-series |
TSW11 TSW22 TSW34 TSW75 TSW100 TSW136 |
Filter Area(Square meter) |
0.11 0.22 0.34 0.75 1.0 1.36 |
Volume(L) |
~16 ~30 ~50 ~145 ~195 ~320 |
Inlet&Outlet Size |
DN40-DN50 DN50-DN80 DN50-DN100 DN65-DN100 DN80-DN125 DN100-DN150 |
Drain Size |
DN40 DN40 DN50 DN50 DN50 DN50 |
Applicapable Liquid |
water and viscous liquids(<800,000cps), impurity<1000ppm |
Filtration Degree |
50-500μm |
Standard Design Pressure |
1.0MPa, high design pressure available |
Design Temperature |
0-200ºC(depend on the seal material) |
Cleaning Differential Pressure |
0.05MPa |
Differential Pressure Instrument |
Differential pressure transmitter(DPT)/ Differential Pressure Switch(DPS) |
Gear Motor |
180W, three phase, 380V, protection class IP55, worm reduction gear |
Inlet and Outlet Standard |
Flange, HG20592-2009(standard), HG20615-2009(ANSI B16.5 Compatible);DIN11851 |
Filter Element Type |
V-SLOT slotted metal filter element, 316L material |
Housing Wet Part Material |
304/316L/CS |
Piston Material |
316L |
Scraping Blade Material |
PTFE |
Housing Seal Material |
NBR/VITON(FKM) |
Pistion Seal Material |
NBR/PU/VITON |
Discharging Valve |
Pneumatic ball valve, protection class IP65 |
Supply Facility Requirement |
380V AC,0.4-0.6MPa clean and dry compressed air |
- Experience seamless efficiency with our fully automatic operation, allowing 24-hour, continuous on-line filtration, ensuring uninterrupted productivity and peace of mind.
- Our system intelligently manages waste, automatically discharging waste liquids teeming with high-concentration impurities, which can be recycled, thus minimizing the loss of your high-value materials and promoting sustainable operations.
- With our advanced closed filtration mechanism, rest assured that hazardous materials are securely contained, enhancing work safety and protecting employee health, creating a safe and compliant environment.
- Utilizing robust stainless steel sheet scrapers, our filter delivers exceptional scraping performance, dramatically enhancing its impurity removal capacity whilst preventing any crushing of impurities, ensuring high-efficiency filtration.
- Enhance your cleaning processes with our optional backwash function. Coupled with a sophisticated PLC-based control system, it optimizes scraping and draining times, giving you smarter, streamlined control over your filtration operations.
The Advanced Self Cleaning Filter for Impurities in Water and Viscous Liquids is your ultimate solution for a diverse range of liquid filtration needs. It is ingeniously crafted to handle an array of liquid types including but not limited to wax, kerosene, monomer, polymer, citric acid, fermented broth, cosmetics, silicon solution, soap, sorbitol, steroid sugar, wet end additives, adhesives, inks, lubricating oils, coatings, resin, rubber, ethanol, miscella, diesel, and much more.
1. PVC Adhesive Filtration
2. Hot Melt Adhesive Filtration
3. Lubricating Grease Filtration
4. Calcium Carbonate Filtration


Hebei SLOT Filter Technology Co., LtdAs a pioneering force in industrial precision and self-cleaning filtration, Hebei SLOT Filter Technology Co., Ltd. stands as a beacon of excellence and innovation. With a wealth of experience spanning over a decade, we pride ourselves on our exceptional design and R&D prowess. By harnessing cutting-edge filtration technology alongside superior product resources, we deliver all-encompassing, one-stop filtration solutions tailored to meet our customers' unique needs.
SLOT is a proud bearer of the prestigious ISO9001 quality management system certification and has also been accredited by SGS. We meticulously adhere to international standards, industry-specific regulations, and bespoke client requirements throughout our product design and manufacturing processes. Our unwavering commitment is to the development of high-performance, superior quality filtration equipment, as well as precision filtration components, setting new benchmarks in the industry.
Our SLOT automatic self-cleaning filter system is versatile and finds its applications in a myriad of industries, ranging from petrochemicals and fine chemicals to energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have nurtured and maintained long-standing, stable partnerships with numerous renowned industrial giants, both domestically and globally, reinforcing our steadfast reputation for excellence.
Renowned for its outstanding product filter performance, cutting-edge manufacturing capabilities, and unparalleled professional services, SLOT has garnered widespread acclaim. For those seeking superior filter system performance, unmatched quality, uncompromising safety, and exemplary service, SLOT emerges as your reliable and esteemed long-term partner.

Quality Management
FAQ
1. Who are we?
Proudly rooted in Hebei, China, since 2014, we excel in serving vast markets with unparalleled dedication. Our reach extends to North America (40.00%), Western Europe (30.00%), South Asia (10.00%), Africa (10.00%), and the Middle East (10.00%). Employing a dynamic team of 11-50 skilled professionals, we ensure excellence at every step.
Africa(10.00%), Mid East(10.00%). There are total about 11-50 people in our office.
2. How can we guarantee quality?
We meticulously uphold quality by always providing a pre-production sample before mass production;
Furthermore, a comprehensive final inspection is conducted before shipment to ensure perfection.
3. What can you buy from us?
Discover our extensive range of innovative products, including Johnson Screen, Bridge Slotted Well Screens, Sand Control Well Screens, Gravel pre-pack Screen, pipe-based screen, Perforated Pipe, and API/5CT Casing and Tubing.
4. Why should you buy from us, not from other suppliers?
1. We proudly offer tailored OEM & ODM support to meet unique demands.
2. Our expertise extends to helping customers with design drawings, ensuring a perfect fit for their needs.
3. Our distinguished research and development team continually drives innovation and excellence.
5. What services can we provide?
We offer diverse delivery terms, including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Accepted payment currencies include USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;
Our payment methods cater to all preferences: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow;
With our multilingual capabilities, we communicate fluently in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
If you are interested in representing us as an agent in your local market, please feel free to reach out to me for more information.