
Introducing the revolutionary Candle Filter, a state-of-the-art automatic filtration system designed to redefine clarity and efficiency. This sophisticated filter features a robust cartridge as its core, enveloped by a dual-layer of premium filter cloth and cake, ensuring unmatched purification. Harnessing the power of pump pressure, it guarantees impeccable liquid clarification, making it an essential asset for diverse applications.
Our Candle Filter offers unparalleled flexibility by allowing customization of filter materials. Whether your needs demand adjustments for filter medium, precision levels, or adapting to varying viscosities of filter residues, this filter is engineered to meet every challenge with excellence.
As the slurry gracefully ascends into the pressure vessel, its progressive journey moves from the bottom to the top. This upward flow ensures that solid particles are elegantly deposited onto the surface of the filter candle. This method facilitates a consistent and uniform suspension, ultimately crafting a flawless filter cake.
Filter cakes delicately form on the smooth, outer surface of each stainless steel candle filter element, showcasing engineered precision. Each filter candle, crafted to meet exact design requirements, is strategically connected in both series and parallel configurations. These connections are meticulously determined by the intricacies of process demands.
The discharge pipe seamlessly integrates with a level set, where each tube harmoniously connects to the primary branch line via an advanced electric valve system. These electronic valves masterfully control both filtration and reverse wash cycles, optimizing filter cake formation on the filter candles. Through sophisticated electric control, all header slurries are expertly directed to the main branch line, creating a seamless, looped filtering process.
- Overview and vent nozzle
- Saddle flange ingeniously designed for heel filtration spray jet nozzle
- Filtrate nozzles, precision-engineered for performance
- Register
- Filter element, a cornerstone of superior filtration
- Pressure vessel shell, the robust backbone of the filter
- Filter medium (cloth, felt, membrane, etc.), tailored for optimum filtration results
- Cloth clamp ring, securing the filter medium perfectly in place
- Product feed nozzle, designed for efficient slurry introduction
- Heel volume nozzle, optimizing discharge processes
- Solid-residue discharge nozzle, ensuring a seamless release of residues
The Composition of the Candle Filter Design
-Vessel shell
-The conical bottom vessel shell is masterfully crafted for filtering and polishing filter cakes.
-A concave bottom vessel is expertly engineered to thicken the slurry to perfection.
-Candle filter element, the hallmark of precision filtration technology
-A sophisticated discharge mechanism ensures efficient removal of the filter cake.
-Every component can be crafted from specialized structural materials, precisely meeting rigorous process requirements.
Details of Candle Filter Elements, the epitome of advanced filtration engineering


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 |
- Discover the marvel of our fully enclosed solid-liquid separation system, where every step-filtration, washing, drying, and slag discharge-unfolds in a pristine, closed environment. This innovative process not only streamlines operations and minimizes labor but also ensures zero leakage and eliminates environmental contamination.
- Experience the true excellence of dry and wet separation with our innovative system, guaranteeing the utmost filtration accuracy of clear liquids. It effortlessly discharges solids as dry filter cakes, eliminating the cumbersome cleaning processes associated with traditional filters and offering you unparalleled efficiency.
- Harness the power of PLC automation with our highly advanced system. Seamlessly automated, it sets itself apart from traditional filter presses and other systems by slashing labor and time expenses, all while enhancing production continuity for your business, offering you a significant competitive edge.
- Embrace automation with our solid-liquid separation system featuring automatic cleaning and regeneration capabilities. This revolutionary approach allows for the repeated use of filter media, resolving the challenges posed by traditional filters that require frequent replacements and managing excessive consumables.
- Achieve sub-micron filtration precision with our groundbreaking system, adept at handling materials with significant solid content. Say goodbye to the leakage and incomplete filtration woes of traditional equipment, and welcome a new era of meticulous separation.
- Our system's main body is ingeniously static, complemented by dynamic backflushing. This design promises a remarkably low failure rate and significantly reduces operational costs, ensuring your peace of mind and financial savings.
- Enjoy the benefits of a sophisticated filter element grouping design, which not only minimizes backflushing air consumption but also smartly isolates any damaged filter elements, ensuring consistent performance and efficiency.
- Candle filtration is revolutionizing the industry, steadily overtaking filter presses and bag filtration as the preferred method. It upholds production continuity, dramatically lowers the risk of accidents, boosts efficiency, and saves labor-ushering your enterprise into a future of enhanced productivity.
Beverage Industry - Ensuring Purity and Quality in Every Drop
Our cutting-edge filtration solutions are designed to revolutionize the beverage industry. Experience unparalleled clarity in fructose syrup with our precision filtration. Purify and enhance the quality of citric, malic, sulfuric, and lactic acids through our advanced decarbonization and decolorization processes. Achieve superior clarity for lycopene and monosodium glutamate with our outstanding filtration technology. Elevate the taste and quality of soy sauce, vinegar, alcohol, and various beverages with our precise filtration systems. Additionally, our technology ensures the exceptional quality of crude oil, edible oil, and blended oils, making us the go-to choice for beverage refinement.
Pharmaceutical Industry - Purity at the Heart of Innovation
In the realm of biopharmaceuticals, our filtration systems guarantee superior purity and reliability. From fermentation broth to crystals, mother liquors, or suspensions, our solutions ensure a high level of filtration and recovery of catalysts, providing you with the precision necessary for pharmaceutical excellence.
Chemical Industry - Precision Filtration for Revolutionary Innovations
Our state-of-the-art filtration technologies serve as the backbone for the chemical industry. Enhance the efficiency and recovery of pesticide intermediates with our specialized systems. Refine waste plastics and tires with our titanium dioxide and black carbon powder filtration. Optimize biomass oil extraction from straw and PTA mother liquor recovery with unmatched precision. Achieve high-purity alumina and solvent oil filtration with our advanced technology. Perfect filtration for polyether desalination in oil sand crude oil and filter aids such as activated carbon, clay, and diatomite. Unleash the full potential of amine liquid desulfurization, PTA, and PVC powder processes with our cutting-edge filtration.
Water Treatment - Solutions for a Cleaner Tomorrow
Harness the power of our filtration systems to transform water treatment processes. Effectively cleanse heavy metal wastewater from electroplating and circuit board production. Ensure purity in battery, magnetic material, electrophoresis, and coal-related wastewaters. Our technology excels in filtering suspended solids, grinding liquids for electronic and optical lenses, and provides precision filtration for pigment latex waste paint water. From river water to swimming pool and bath water, our solutions redefine water clarity.
Grease Ink - Redefining Filtration in the Industry
Elevate industrial oil quality with our premier dewaxing, decolorization, and filtration systems. Our solutions expertly handle biodiesel, hydraulic, waste, mixed, base, diesel, kerosene, lubricating, and transformer oils. Experience the brilliance of our vegetable and edible oil systems, ensuring purity and quality in every drop.

Hebei SLOT Filter Technology Co., Ltd. is a leading-edge enterprise excelling in the realm of industrial precision filtration and self-cleaning filtration solutions. With over ten years of profound experience, our company showcases unparalleled design and R&D prowess. By harnessing cutting-edge filtration technology and superior quality product resources, we deliver holistic, one-stop filtration solutions that cater to all customer needs.
SLOT proudly holds the prestigious ISO9001 quality management system certification alongside certification from SGS. We stringently comply with international standards, industry-specific regulations, and tailor-made client specifications during product design and manufacturing. Our unwavering commitment is to innovate high-performance, superior-quality filtration equipment and precision filtration components.
SLOT's automatic self-cleaning filter systems are extensively utilized across a diverse array 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 both on a domestic and international scale.
Renowned for its exceptional product filter performance, state-of-the-art manufacturing capabilities, and expert services, SLOT has garnered widespread acclaim. If your demands for filter system performance, quality, safety, and service are elevated, SLOT stands as your reliable long-term partner of choice.

Quality Management: At Hebei Slot Filter Technology Co., Ltd., quality is not just a promise-it's our ethos. We adhere to stringent quality protocols to deliver superior products that meet and exceed industry standards.
FAQ: Your questions, expertly answered. Explore our comprehensive FAQ section to gain insights into our products, services, and the unique value we offer.
1. Who are we?
We are proudly situated in Hebei, China. Since our inception in 2014, we have been a leading force, exporting globally to diverse markets including North America (40.00%), Western Europe (30.00%), and South Asia (10.00%).
Our reach extends to Africa and the Middle East, each accounting for 10.00% of our market share. Our dedicated team ranges from 11 to 50 professionals, all committed to excellence.
2. How can we guarantee quality?
We ensure quality through a meticulous process, starting with a pre-production sample that sets the standard for mass production.
We conduct thorough final inspections before shipment, ensuring that only the finest products reach our customers.
3. What can you buy from us?
Our product range is diverse and cutting-edge, including Johnson Screen, Bridge Slotted Well Screens, and Sand Control Well Screens, among others. Explore our offerings of Gravel pre-pack Screens, Pipe-based screens, Perforated Pipes, and API/5CT Casing and Tubing, tailored to meet various industry needs.
4. Why should you buy from us, not from other suppliers?
1. We offer robust support for OEM & ODM projects, tailoring solutions to your specific requirements.
2. Our expert team assists in designing detailed drawings, ensuring precision and clarity in every project.
3. With a dedicated R&D team, we innovate continuously to deliver products that set benchmarks in quality and performance.
5. What services can we provide?
Our versatile shipping options include FOB, CFR, CIF, EXW, and more, offering flexibility and convenience.
We accept multiple payment currencies such as USD, EUR, JPY, and others, enhancing our global business interactions.
Our payment methods are diverse, ranging from T/T, L/C, to PayPal and Western Union, ensuring ease and security.
We communicate in multiple languages, including English, Chinese, Spanish, and more, to offer seamless service to our global clientele.
Interested in becoming an agent in your local market? We invite you to connect with us for exciting opportunities.