Our External Automatic Self-cleaning Filter is ingeniously crafted to deliver unparalleled filtration efficiency for a diverse array of liquids, even those with exceptionally high viscosity, reaching up to an impressive 800,000 cps. This innovative filtration solution ensures a seamless and uninterrupted flow, maintaining continuous filtration without requiring any process halt during cleaning. Remarkably, there is no need for operators to engage directly with the process fluids, enhancing safety and convenience. The filter's robust stainless steel elements excel in purging contaminants, effectively capturing particles as diminutive as 25 microns (μm) with precision and reliability. TSW filter technology revolutionizes traditional filtration by eradicating the cumbersome manual cleaning process, significantly reducing the need for substantial investment, labor-intensive efforts, and material wastage. Through its state-of-the-art self-cleaning mechanism, the filter consistently maintains the cleanliness of the filter elements, efficiently expels waste liquids with a high impurity concentration, and minimizes material waste. It is particularly adept at filtering challenging materials such as poor-quality water, adhesives, resins, polymers, and fats, boasting impressive advantages in efficiency and performance.
Witness a revolution in filtration technology with our remarkable High Efficiency Self Cleaning Filter! As the liquid enters through the filter inlet, it gracefully journeys inward from the outer surface of the filter element, seamlessly connecting with the outlet at the lower end. An orchestrated flow emerges as the liquid exits through the outlet, while a sophisticated system awaits impurities' interception on the filter element's surface. At predetermined intervals or upon reaching the set pressure difference, an automated cleaning sequence commences. The reduction motor springs into action, directing a precisely engineered scraper across the filter's outer surface. This dynamic motion effectively removes impurities, guiding them effortlessly off the filter element and allowing them to descend into the filter's bottom with the flowing liquid. Additionally, our rotating sweeping plate ensures no heavy impurity is left behind, meticulously gathering them into the sewage collecting chamber. Here, impurities are efficiently accumulated, ready to be discharged. At scheduled times, the drain valve opens automatically, releasing the high-concentration impurity-laden liquid. To maximize resource efficiency, the discharged residual liquid can be recycled with ease. Experience unparalleled filtration performance and meticulous self-cleaning with Hebei Slot Filter Technology Co., Ltd.
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 the epitome of seamless filtration with our High Efficiency Self Cleaning Filter, designed for fully automatic operation. This ingenious system ensures 24-hour uninterrupted online filtration, providing a hassle-free, consistent, and reliable solution to meet your demanding needs.
-Our advanced technology automatically disposes of waste liquids laden with high concentration impurities, facilitating the recycling process. This smart feature not only minimizes losses of valuable materials but also contributes to sustainable and cost-effective operations.
-Enjoy peace of mind with our closed filtration system that safeguards against hazardous material leakage. This essential feature upholds stringent safety standards, ensuring the well-being of your workforce and maintaining a safe working environment.
-Our state-of-the-art stainless steel sheet scraper is engineered for exceptional performance, delivering impressive scraping efficiency. It significantly enhances impurity removal capabilities while preventing the crushing of impurities, ensuring optimal filter performance.
-Enhance filter functionality with an optional backwash feature that assists in maintaining clean filter elements. Our sophisticated PLC-based control system meticulously manages scraping and draining times, ensuring precision and efficiency in every operation.
Applicable Liquid Types: Our versatile High Efficiency Self Cleaning Filter is expertly designed to tackle a wide array of liquid types. Its robust filtration capabilities make it ideal for managing substances such as 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. With a filtration degree ranging from 50-3000μm, it ensures exceptional purity and clarity for your diverse liquid processing needs.
1. PVC Adhesive Filtration: Achieve unparalleled efficiency in the filtration of PVC adhesives with our advanced system, ensuring superior performance and product quality.
2. Hot Melt Adhesive Filtration: Optimize your hot melt adhesive processes with our cutting-edge filtration technology, crafted to deliver precision and reliability.
3. Lubricating Grease Filtration: Maintain the integrity and effectiveness of lubricating greases through our high-efficiency filtration solutions, designed for maximum durability and performance.
4. Calcium Carbonate Filtration: Experience refined filtration of calcium carbonate, enhancing product consistency and operational efficiency with our state-of-the-art system.


Hebei SLOT Filter Technology Co., Ltd. is a distinguished and robust enterprise deeply entrenched in the cutting-edge domain of industrial precision and self-cleaning filtration. With an impressive legacy surpassing a decade, we stand out with our exceptional design prowess and R&D expertise. By harnessing state-of-the-art filtration technology alongside premium-quality product resources, we offer clients comprehensive, seamless, and turnkey filtration solutions that meet every need.
SLOT has proudly secured the prestigious ISO9001 quality management system certification and further attained certification from SGS. We meticulously adhere to international benchmarks, adhere to industry-specific regulations, and customize our offerings to meet bespoke client requirements in both product design and manufacturing. Our mission is steadfast in engineering high-performance, top-tier filtration equipment and precision filtration components.
The SLOT automatic self-cleaning filter systems are versatile and find extensive application across a multitude of industries, encompassing petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. Our dedication has fostered enduring and stable partnerships with numerous renowned industrial enterprises on both domestic and international fronts.
Renowned for exceptional filter performance, cutting-edge manufacturing capabilities, and exemplary professional services, SLOT has garnered widespread acclaim and recognition. For those who demand superior filter system performance, unparalleled quality, safety, and impeccable service, SLOT stands as your reliable and trusted long-term partner.

Quality Management
FAQ
1. Who are we?
We are proudly headquartered in Hebei, China, and have been innovating since 2014. Our primary markets include the dynamic regions of North America (40.00%), Western Europe (30.00%), and South Asia (10.00%).
We also serve Africa (10.00%) and the Middle East (10.00%). Our dedicated team consists of 11-50 skilled professionals.
2. How can we guarantee quality?
We ensure excellence by providing a pre-production sample for thorough testing before mass production;
A meticulous final inspection is conducted before each shipment to assure quality.
3. What can you buy from us?
Our product range includes Johnson Screen, Bridge Slotted Well Screens, Sand Control Well Screens, and Gravel Pre-pack Screens, Pipe-based screens, Perforated Pipes, along with API/5CT Casing and Tubing.
4. Why should you buy from us not from other suppliers?
1. We offer comprehensive OEM & ODM support to tailor solutions to your needs.
2. Our expertise extends to assisting customers in designing detailed, custom drawings.
3. Backed by our professional research and development team, we innovate continually.
5. What services can we provide?
We accommodate various delivery terms such as FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
We accept payments in diverse currencies including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;
Flexible payment types are also supported: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow;
Our team is multilingual, fluent in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
If you are interested in representing our prestigious brand as an agent in your local market, please do not hesitate to reach out.