External Automatic Self-cleaning Filter is meticulously engineered to deliver exceptional and uninterrupted filtration, tailored for a wide range of liquids, including high-viscosity substances reaching up to an impressive 800,000 cps. This cutting-edge filter excels in maintaining continuous flow during the cleaning cycle, ensuring that your operations run smoothly without any interruptions. Featuring superior stainless steel elements, it effortlessly captures contaminant particles down to an ultra-fine 25 microns (μm), safeguarding the purity of your process fluids. The TSW filter stands as a beacon of innovation, effectively eliminating the cumbersome and frequent manual cleaning process that plagues many traditional systems. By employing advanced self-cleaning technology, the filter consistently maintains a pristine filter element, efficiently expelling waste liquid laden with high concentrations of impurities. This remarkable system not only minimizes material wastage but also optimizes the filtration of subpar water quality. It is especially adept at handling adhesive substances such as adhesives, resins, polymers, fats, and more, elevating operational efficiency to new heights.
Experience a revolutionary filtration experience with our cutting-edge Reliable Self Cleaning Filter, proudly engineered by Hebei Slot Filter Technology Co., Ltd. The liquid journey begins as it gracefully enters through the filter inlet, making its way inward from the outer surface of the meticulously crafted filter element. This marvel of engineering seamlessly connects to the outlet through its lower end, allowing for the pristine liquid to effortlessly flow out. As impurities accumulate on the filter element's surface, our intelligent cleaning protocol activates either at pre-set intervals or based on the pressure differential. The precision-engineered reduction motor commands a strategically inclined scraper to rotate across the outer surface, expertly removing impurities. These impurities, gently guided by the scraper, descend with the liquid to the filter's base. The robust rotating sweeping plate then corrals the denser impurities into a designated sewage collecting chamber, where they gather until the scheduled release. At the appointed time, the drain valve automatically opens, elegantly expelling the concentrated impurity-laden liquid. For those seeking sustainability, the option to recycle the residual liquid remains available, ensuring a commitment to eco-friendly operations.
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, enabling uninterrupted 24-hour continuous on-line filtration, designed to meet your demanding filtration needs with absolute precision;
- Enjoy the benefit of intelligent waste management as the system automatically discharges waste liquids filled with high concentration impurities. This not only reduces material loss but also allows recycling of valuable resources, ensuring an eco-friendly and economical solution;
- Embrace enhanced safety features with our closed filtration system, meticulously crafted to prevent leakage of hazardous materials. This ensures a safe working environment and prioritizes the health and wellbeing of your employees;
- Our exceptional stainless steel sheet scraper is designed to deliver optimal scraping performance, significantly boosting impurity removal capacity while preventing the crushing of impurities, maintaining integrity and efficiency;
- Augment your filtration process with an optional backwash function, facilitating effective cleaning of filter elements. The advanced PLC-based control system orchestrates the precise timing of scraping and draining operations for unparalleled control and convenience.
Applicable Liquid Types: This versatile filter is ideal for an extensive array of liquid types, including 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 more. Experience unparalleled filtration performance suitable for diverse industries and applications.
1. PVC Adhesive Filtration: Achieve exceptional purity and consistency in your PVC adhesives with our Reliable Self Cleaning Filter, expertly designed to deliver superior filtration results.
2. Hot Melt Adhesive Filtration: Ensure the highest quality of hot melt adhesives with precision filtration that enhances efficiency and product performance.
3. Lubricating Grease Filtration: Maintain the optimal performance of lubricating grease through our advanced filtration technology, ensuring smooth operation and longevity.
4. Calcium Carbonate Filtration: Optimize calcium carbonate purity with our cutting-edge filtration solution, perfect for achieving desired quality standards in various applications.


Hebei SLOT Filter Technology Co., Ltd. is a dynamic and comprehensive enterprise masterfully specializing in the domain of industrial precision filtration alongside self-cleaning filtration systems. With the wealth of over a decade of industry expertise, our company exemplifies exceptional skill in design and R&D capabilities. By harnessing the power of cutting-edge filtration technology coupled with superior product resources, we deliver to our clients a holistic, one-stop solution for all their filtration needs.
SLOT stands as a beacon of quality assurance with our ISO9001 quality management system certification, alongside accreditation from SGS. We rigorously adhere to demanding international standards, industry-specific regulations, and bespoke client requirements throughout our product design and manufacturing processes. Our unwavering commitment lies in innovating high-performance, premium-quality filtration equipment and precision filtration components.
The SLOT automatic self-cleaning filter system finds its invaluable application across a diverse range of industries, including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We pride ourselves on fostering long-term, stable partnerships with a vast array of renowned industrial enterprises, both within domestic borders and on the global stage.
Renowned for exceptional filter performance, cutting-edge manufacturing capabilities, and unmatched professional services, SLOT has garnered widespread acclaim and recognition. For those who demand superior performance, unparalleled quality, unwavering safety, and impeccable service in a filter system, SLOT stands as your trusted and reliable long-term partner.

Quality Management
FAQ
1. Who are we?
We are strategically headquartered in Hebei, China, and have been excelling in the filtration industry since 2014. Our expansive reach spans across North America, capturing 40% of our market, and Western Europe with 30%. We also cater to South Asia, commanding 10% of our business,
as well as Africa and the Middle East, each comprising 10% of our customer base. Our dynamic team consists of approximately 11-50 dedicated professionals.
2. How can we guarantee quality?
We commit to excellence by providing a pre-production sample prior to commencing mass production;
Furthermore, a thorough final inspection is conducted before every shipment to ensure optimal quality.
3. What can you buy from us?
Our extensive product selection includes premium Johnson Screens, Bridge Slotted Well Screens, and Sand Control Well Screens. We also offer Gravel pre-pack Screens, Pipe-based screens, Perforated Pipes, and certified API/5CT Casings and Tubings.
4. Why should you buy from us not from other suppliers?
1. We provide robust OEM & ODM support tailored to your unique requirements.
2. Our expertise allows us to assist customers in designing precise and detailed drawings.
3. A dedicated professional research and development group drives our innovation and quality.
5. What services can we provide?
We offer flexible delivery terms including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, and DES;
Our accepted payment currencies include USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, and CHF;
We accept a variety of payment types such as T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow;
We proudly communicate in multiple languages: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
Should you be interested in becoming our esteemed agent in your local market, please feel free to reach out to us at any time.