
Experience the pinnacle of filtration technology with our Candle Filter System! Ingeniously designed as an automatic filtration marvel, this system utilizes a robust filter cartridge as its foundation. The heart of its operation lies in the delicate layers of filter cloth and filter cake that envelop the cartridge, all working in harmony to deliver crystal-clear liquid results. Utilizing pump pressure, it masterfully achieves unparalleled liquid clarification.
Our Candle Filter System offers exceptional versatility, allowing you to tailor your filtration experience to your specific needs. Select from a range of superior filter materials, precisely adapting to your medium, desired filtration precision, and even the viscosity of filter residues. Discover a new standard of customizable and efficient filtration solutions.
As the slurry is expertly introduced into the pressure vessel, it moves gracefully from the bottom upwards. This strategic flow encourages solid particles to elegantly settle on the filter candle's surface, forming a beautifully uniform suspension. This meticulous approach guarantees a consistently formed filter cake, ensuring optimal filtration performance.
On the outer facade of each stainless steel candle filter element, intricate filter cakes take shape. Each row of these stainless steel candle filter elements is masterfully designed to connect in an artful series and parallel fashion. This ingenious design configuration is precisely tailored to meet specific process requirements, ensuring efficient and seamless filtration.
The discharge pipe, expertly linked to the level set, features each set tube artistically attached to the primary branch line via sophisticated electric valves. These electronic marvels not only control filtration but also enhance reverse washing. By expertly modulating the flow, each valve optimizes the online formation of the filter cake on the filter candles. All header slurries are efficiently transported to the main branch line through expert electric control, creating a harmonious loop filtering process.
- Overview and vent nozzle
- Saddle flange for heel filtration with precision spray jet nozzle
- Filtrate nozzles meticulously engineered for optimal performance
- Register
- Filter element
- Pressure vessel shell
- Filter medium options (cloth, felt, membrane, etc.) for tailored applications
- Cloth clamp ring
- Product feed nozzle
- Heel volume nozzle
- Solid-residue discharge nozzle
The Composition of the Candle Filter Design
-Vessel shell
-The vessel shell, with its elegant conical bottom, is designed for both filtering and polishing the filter cake to perfection.
-A vessel featuring a concave bottom is expertly used for thickening the slurry, enhancing its consistency.
-Candle filter element
-A sophisticated discharge mechanism for the filter cake
-Each component can be crafted from unique structural materials, ensuring they meet the rigorous requirements of the process.
Details of Candle Filter Elements


Model |
Cartridge QTY |
Cartridge Size
(mm) |
Filtering Area
(m2) |
Capacity
(t/h) |
Housing Volume
(L) |
Inlet |
Cake Discharging Outlet |
Total Height
(mm) |
Dimension (mm) |
TZS-1 |
7 |
90*500 |
1 |
2.2 |
140 |
DN25 |
DN150 |
1902 |
φ1000 |
TZS-1.5 |
10 |
90*500 |
1.5 |
3.3 |
180 |
DN25 |
DN200 |
1928 |
φ1000 |
TZS-2 |
7 |
90*1000 |
2 |
4.4 |
220 |
DN32 |
DN150 |
2402 |
φ1200 |
TZS-3 |
10 |
90*1000 |
3 |
6.6 |
280 |
DN40 |
DN200 |
2428 |
φ1200 |
TZS-4 |
14 |
90*1000 |
4 |
8.8 |
400 |
DN40 |
DN200 |
2502 |
φ1300 |
TZS-6 |
19 |
90*1000 |
6 |
13.2 |
560 |
DN50 |
DN250 |
2578 |
φ1400 |
TZS-8 |
24 |
90*1000 |
8 |
18 |
740 |
DN65 |
DN250 |
2644 |
φ1500 |
TZS-12 |
40 |
90*1000 |
12 |
26 |
1200 |
DN65 |
DN300 |
2854 |
1300*1440 |
TZS-18 |
64 |
90*1000 |
18 |
40 |
1800 |
DN80 |
DN400 |
2904 |
1440*1540 |
TZS-30 |
106 |
90*1000 |
30 |
66 |
3000 |
DN100 |
DN500 |
3440 |
1800*1940 |
TZS-40 |
140 |
90*1000 |
40 |
88 |
3815 |
DN150 |
DN500 |
3560 |
2000*2140 |
TZS-60 |
190 |
90*1000 |
60 |
132 |
5700 |
DN150 |
DN500 |
3700 |
2000*2140 |
- Embrace the future of filtration with our fully enclosed solid-liquid separation system! This advanced system revolutionizes the process by seamlessly integrating filtration, washing, drying, and slag discharge within a single closed container. Experience a streamlined workflow that not only reduces labor but also ensures zero leakage and eliminates environmental pollution, setting a new standard for eco-friendly operations.
- Our cutting-edge solid-liquid separation system excels in both dry and wet separation. Enjoy unparalleled filtration precision with crystal-clear liquid output, while effortlessly discharging solids as dry filter cakes. This innovation effectively eliminates the cumbersome cleaning process required by traditional filters, setting a new benchmark for efficiency.
- Experience the pinnacle of automation with our PLC-controlled system. The entire operation is effortlessly automated, offering significant savings in labor and time compared to traditional filter presses and alternative methods. Not only does it streamline costs, but it also ensures seamless continuity in production, empowering your enterprise to thrive.
- Our revolutionary system, featuring automatic cleaning and regeneration capabilities, transforms the filtration landscape. By enabling repeated use of filter media, it resolves the challenges posed by traditional filters that require frequent media replacement and generate excessive consumables, offering a sustainable and cost-effective solution.
- Achieve unprecedented sub-micron filtration accuracy with our advanced solid-liquid separation technology. Overcoming the limitations of traditional equipment, our system effectively addresses leakage and incomplete filtration, particularly when processing materials with substantial solid content, ensuring unparalleled performance and reliability.
- Designed with a static main body and dynamic backflushing capability, our system boasts an impressively low failure rate and reduced operating costs. Experience the reliability and efficiency that sets our separation technology apart from the rest.
- Innovative filter element grouping design significantly reduces backflushing air consumption while isolating any damaged elements, ensuring optimal performance and efficiency throughout the filtration process.
- Candle filtration is emerging as the leading choice, replacing traditional filter presses and bag filters. This modern approach not only ensures production continuity but also dramatically minimizes the risk of accidents, enhances efficiency, and reduces labor costs, propelling your operations to new heights.
Beverage Industry
Our Candle Filter System excels in the Beverage Industry, offering unparalleled clarity and purity for a wide range of products. Whether it's the meticulous filtration of fructose syrup, the decarbonization and decolorization of critical acids like citric, malic, sulfuric, and lactic, or the precision filtration of lycopene, our system is designed to deliver. Experience seamless filtration for monosodium glutamate, yeast, and soybean protein, along with various fruit and vegetable juices. Enhance the quality of soy sauce, vinegar, alcohol, and beverages, ensuring nothing but the finest products reach your consumer. The system also guarantees the precise filtration of crude, edible, and blended oils, maintaining superior standards.
Pharmaceutical Industry
In the Pharmaceutical Industry, our Candle Filter System is indispensable for achieving the highest standards of filtration. It provides expert filtration solutions for biopharmaceutical applications, ensuring the purity and integrity of fermentation broth, crystals, and mother liquors. Our system is crucial for the filtration and recovery of catalysts, ensuring cost efficiency and adherence to stringent industry regulations.
Chemical Industry
The Chemical Industry benefits greatly from our advanced filtration technologies. Our Candle Filter System is adept at filtering and recovering pesticide intermediates and offers superior filtration of titanium dioxide and black carbon powder in waste refining processes. It handles complex filtration needs from biomass oil made from straw to PTA mother liquor. Achieve high-purity alumina and filter solvent oils like white oil with precision. From polyether desalination to amine liquid desulfurization, our system tackles it all. It ensures the effective recovery and filtration of PTA and PVC powders, as well as inorganic salts, providing comprehensive filtration solutions that drive operational excellence.
Water treatment
Our Candle Filter System is crucial in Water Treatment applications, tackling a wide array of wastewater challenges. Efficiently filter heavy metal-laden wastewater from electroplating, circuit board production, and hot-dip galvanizing processes. Manage battery, magnetic material, and electrophoresis wastewaters with ease. Gain control over coal mine and stacking wastewaters, alongside fluorine-containing wastewaters. The system also excels in filtering suspended solids wastewater and handling grinding liquids for electronic and optical lenses. For precision filtration needs, it addresses pigment latex waste paint water, as well as river, groundwater, spring, swimming pool, and bath waters, ensuring clean and safe water for all uses.
Grease ink
Our Candle Filter System delivers exceptional performance in the grease and ink sectors. It provides sophisticated dewaxing, decolorization, and fine filtration of industrial oils. From biodiesel to hydraulic, waste, mixed, base, diesel, kerosene, lubricating, and transformer oils, our system ensures optimal purity. It also offers advanced dewaxing, decolorization, and filtration of vegetable and edible oils, meeting the highest quality standards.

Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd is a trailblazing enterprise, passionately dedicated to the realm of industrial precision and self-cleaning filtration. Boasting over ten years of unrivaled industry experience, we pride ourselves on extraordinary design and R&D prowess. By harnessing cutting-edge filtration technology and top-tier product resources, we deliver all-encompassing, seamless filtration solutions to our esteemed clientele.
Hebei SLOT has proudly earned the prestigious ISO9001 quality management system certification and SGS certification. We meticulously adhere to global standards, industry-specific regulations, and bespoke client requirements in both product design and manufacturing. Our unwavering mission is to innovate and produce high-performance, top-quality filtration equipment alongside precision components that set industry benchmarks.
The SLOT automatic self-cleaning filter system finds its versatile application across a multitude of industries, such as petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged enduring, stable alliances with numerous renowned industrial enterprises, spanning both domestic and international landscapes.
Renowned for its exceptional product filter performance, state-of-the-art manufacturing capabilities, and unparalleled professional service, SLOT Filter Technology has garnered widespread acclaim. For those who demand superior performance, unmatched quality, robust safety, and exemplary service from their filtration systems, SLOT is your steadfast partner for long-term success.

Quality Management: Our commitment to quality is unwavering. We uphold the highest standards with rigorous quality checks at every stage, ensuring that each product meets global excellence.
FAQ: Your questions, answered. Discover everything you need to know about our offerings, processes, and how we can serve your needs with precision and care.
1. Who are we?
We are rooted in Hebei, China, and have been a prominent player since 2014. Our reach spans across North America (40.00%), Western Europe (30.00%), and South Asia (10.00%).
Africa (10.00%) and the Mid East (10.00%) also benefit from our exceptional offerings. Our team consists of 11-50 dedicated professionals ready to serve you.
2. How can we guarantee quality?
We ensure impeccable quality by always providing a pre-production sample before mass production commences;
Each product undergoes a thorough final inspection before it makes its way to you, assuring excellence every step of the way.
3. What can you buy from us?
Explore our diverse range including Johnson Screens, Bridge Slotted Well Screens, and Sand Control Well Screens. Our offerings also encompass Gravel Pre-pack Screens, Pipe-based screens, Perforated Pipes, and API/5CT Casing and Tubing.
4. Why should you buy from us not from other suppliers?
1. We offer robust OEM & ODM support, tailoring solutions to your specific needs.
2. Our skilled designers are at your service, crafting bespoke designs to bring your visions to life.
3. Our dedicated R&D team is constantly innovating to offer you cutting-edge technology.
5. What services can we provide?
We accommodate a wide range of delivery terms: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES;
Our transactions are versatile, accepting various currencies including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF.
Choose from multiple payment types: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow.
Our multilingual team communicates effortlessly in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian.
If you're interested in representing our brand locally, don't hesitate to reach out and partner with us.