Product Description
The Internal Scraper Self-Cleaning Filter stands as a paramount solution for the filtration of viscous liquids, embodying cutting-edge technology and exceptional performance.
Perfectly engineered for the meticulous filtration of a diverse array of viscous substances, the Self-Cleaning Filter is the vanguard of modern filtration systems. Whether it's emulsion, grease, resin, paint, honey, syrup, fermentation liquids, or glue, this innovative filter excels in maintaining purity and operational efficiency. It features a precision-crafted scraper mechanism driven by a deceleration motor to expertly eliminate impurities intercepted by the filter element. This ensures the seamless operation of other equipment in your system, all while maintaining a single-machine continuous online filtration. Enjoy the convenience of automatic impurity discharge without the need for manual intervention or the production of additional filter supplies. The liquid seamlessly integrates into the self-cleaning filter through the water inlet, under the control of an advanced intelligent PLC system. This system, responsive to pressure differentials and time settings, automatically initiates the cleaning function, offering an unparalleled level of automation. With filtration accuracy options ranging from 20 um to 1000 um, this state-of-the-art filter solution not only meets but exceeds diverse operational requirements, helping customers to significantly reduce costs and boost efficiency.
Work Principle
Ingeniously designed to optimize liquid purification, our Self Clean Filter with Internal Scraper ingeniously directs the liquid through its meticulously crafted inlet, seamlessly flowing through a high-efficiency filter element, and exiting through the outlet, while effectively capturing impurities on the inner surface. When impurities reach a predefined threshold, the advanced cleaning cycle is automatically activated, either based on a precise timer setting or intelligently triggered by a sophisticated differential pressure sensor.
The innovative mechanism, powered by a robust speed reducer or cylinder, diligently drives scraper blades in rotational motion, expertly removing trapped impurities from the filter element's surface. These impurities gracefully descend to the filter's bottom, ready for disposal. The strategically positioned drain valve is periodically opened to evacuate the high concentration liquid, offering an opportunity for recycling, and allowing for the reclamation of waste liquid if deemed necessary.
Product details

Product Parameters
Sub-series |
TSN20 TSN41 TAN71 |
Filter Area(cm2) |
2070 4140 7140 |
Volume(L) |
35 53 175 |
Applicapable Liquid |
water and viscous liquids(<800,000cps), impurity<1000ppm |
Filtration Degree |
50-3000μm |
Standard Design Pressure |
1.0mPa, high design pressure available |
Design Temperature |
0-200ºC( depend on the seal material) |
Clean Differential Pressure |
0.05mPa |
Differential Pressure Instrument |
Differential pressure tansmitter(DPT)/ Differential Pressure Switch(DPS) |
Gear Motor |
180W, three phase, 380V, protection class IP55, worm reduction gear motor |
Inlet and Outlet Standard |
Flange, HG20592-2009(standard), HG20615-2009(ANSI B16.5 Compatible) |
Filter Element Type |
V-SLOT slotted metal filter element, 316L material |
Housing Wet Part Material |
304/316L/CS |
Scraping Blade Material |
304/316L |
Housing Seal Material |
NBR/VITON(FKM) |
Discharging Valve |
Pneumatic ball valve, protection class IP65 |
Supply Facility Requirement |
380V AC, 0.4-0.6mPa clean and dry compressed air |
Product Feature
- Experience the pinnacle of filtration excellence with our Self Clean Filter, designed for fully automatic operation that offers seamless 24-hour continuous online filtration. This feature ensures that your operations run efficiently without any interruptions, keeping your systems in perfect harmony.
- Minimize material loss and enhance resource efficiency with our innovative system that automatically discharges waste liquids laden with high concentration impurities. These waste liquids can be recycled, thereby reducing the loss of precious high-value materials and contributing to a sustainable operation.
- Our advanced closed filtration system provides a robust safeguard against the leakage of hazardous materials, ensuring optimal work safety and protecting employee health. Trust in our technology to maintain a safe and healthy working environment.
- Equipped with high-performance stainless steel sheet and brush scrapers, our filter delivers exceptional scraping effectiveness. This significantly enhances its ability to remove impurities without crushing them, thus maintaining the integrity and purity of your materials.
- For an added layer of cleaning efficiency, a backwash function can be integrated to facilitate thorough cleaning of filter elements, ensuring they are always in prime condition for optimal performance.
- Utilizing a sophisticated PLC-based control system, our filter precisely manages the scraping and draining times, ensuring a fine-tuned operation that maximizes efficiency and reliability in every cycle.
Product Application
Traditional manual filters often face blockages when dealing with viscous substances and soft impurities. However, our self-cleaning filters effortlessly overcome these challenges, ensuring that the filter element remains pristine at all times. This remarkable capability allows self-cleaning filters to serve as an innovative replacement for conventional manual filters across a diverse array of applications.
- Fine chemicals. Perfectly suited for paint and ink filtration, softened glycol wastewater purification, and adhesive filtration, our filters ensure unparalleled purity and efficiency;
- Food & beverage. Ideal for waste oil recovery filtration, fermented broth refinement, chocolate slurry purification, and honey filtration, providing exceptional clarity and quality;
- Water treatment. Our filters excel in surface sewage cleaning, backwater purification, landscape water treatment, agricultural irrigation water filtration, and cooling water purification, offering unrivaled performance and reliability;
- Marine filtration system. Highly effective in seawater desalination processes, ensuring fresh, clean water through advanced filtration techniques;
- Oil & gas. Specifically designed for well completion filtration, maintaining impeccable standards of purity and efficiency;
- Pulp & paper. Optimized for starch slurry filtration and coating filtration, delivering exceptional quality and consistency;
Ideal for viscous resin production, ensuring smooth processing; perfect for chocolate slurry production, maintaining top-tier quality; unmatched for paper mill production, guaranteeing superior results.
Packaging & Shipping
We provide safe, efficient, and reliable transportation solutions, ensuring your products reach their destination in pristine condition.
Company Profile

Hebei SLOT Filter Technology Co., Ltd. stands as a leading comprehensive enterprise passionately dedicated to the realm of industrial precision and self-cleaning filtration. With over ten years of profound industry experience, our company is renowned for its exceptional design expertise and cutting-edge research and development capabilities. By harnessing the power of state-of-the-art filtration technology paired with top-tier product resources, we deliver all-encompassing, one-stop filtration solutions that meet and exceed customer expectations.
SLOT meticulously upholds stringent international standards, adheres to industry-specific regulations, and caters to customized client requirements in every facet of product design and manufacturing. Our unwavering commitment is to cultivate and offer filtration equipment and precision components that are synonymous with high performance and superior quality.
The SLOT automatic self-cleaning filter system finds its versatile applications across a myriad of sectors, notably petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged enduring, stable partnerships with a plethora of esteemed industrial enterprises around the globe, both domestically and internationally, a testimony to our industry excellence.
With unparalleled filter performance, cutting-edge manufacturing prowess, and professional service excellence, SLOT enjoys widespread acclaim and recognition. For discerning clients seeking enhanced performance, impeccable quality, steadfast safety, and outstanding service in filter systems, SLOT stands as your dependable, long-term partner of choice.

Workshop & Production
As a leading force in the wedge wire product industry, we at Hebei Slot Filter Technology Co., Ltd. pride ourselves on our state-of-the-art facility. Our meticulously maintained workshop is equipped with the latest machinery, ensuring seamless production processes. Our team of highly skilled professionals and our unwavering commitment to a stringent quality control system guarantee that we consistently deliver exceptional products.
Quality Management
At Hebei Slot Filter Technology Co., Ltd., we are unwavering in our dedication to excellence, guaranteeing that each Self Clean Filter with Internal Scraper is crafted to the pinnacle of perfection. Our robust quality management practices ensure that every product not only meets but exceeds the most rigorous industry standards, providing unmatched reliability and performance for impurity removal.

FAQ
1. Who are we?
We are a company integrating industry and trade, with our own production lines and workers. Any product that meets your equipment needs can be customized based on years of production experience.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Self Cleaning Filter,TDS Series Bag Filter,TLS Series Basket Filter,TWK Series PA/PE Micropore Filter,TXS Series Cartridge Filter,TZS Series Automatic Candle Filter and a series of filtration systems.
4. Why should you buy from us not from other suppliers?
1. Support OEM & ODM
2. We can help customers design drawings.
3. We have own professional research and development group.
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken :English, Chinese, Spanish, Japanese ,Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian