
The Candle Filter is a marvel of modern filtration technology, expertly designed for those who seek efficiency and reliability. This automatic filter equipment is engineered with precision, utilizing a filter cartridge as its robust skeleton. Each Candle Filter is sheathed with layers of high-quality filter cloth and filter cake, adeptly working in harmony with pump pressure to deliver crystal-clear liquid clarification. Revel in the seamless performance that sets a new standard in filtration.
The Candle Filter offers unparalleled versatility, allowing you to tailor your filtration experience with a range of filter materials. Whether your needs demand variations in filter medium, precision levels, or viscosity of filter residue, the Candle Filter stands ready to adapt and deliver outstanding results.
As the slurry gracefully makes its entrance into the pressure vessel, it flows in an upward direction. This motion is meticulously designed to facilitate the even settling of solid particles on the candle filter's surface. Such a technique ensures that each filter cake is consistently formed with precision and uniformity.
Marvelous filter cakes emerge on the outer surface of each stainless steel candle filter element. Ingeniously crafted, these filter candles are interconnected at the top, employing both series and parallel connections. The design is a testament to the process requirements and demands, ensuring optimal performance.
The slurry's discharge journey is intricately linked to the level set, with each tube seamlessly attaching to the main branch line through the sophisticated electric valve. These electronic marvels orchestrate the filtration and reverse wash processes, optimizing filter cake formation through precise flow control. With masterful electric control, all header slurries converge into the main branch line, crafting an efficient loop filtering process.
- Comprehensive Overview and Vent Nozzle
- Ingenious Saddle Flange for Heel Filtration Spray Jet Nozzle
- Efficient Filtrate Nozzles
- Central Register
- Advanced Filter Element
- Robust Pressure Vessel Shell
- Dynamic Filter Medium (cloth, felt, membrane etc.)
- Durable Cloth Clamp Ring
- Strategically Positioned Product Feed Nozzle
- Heel Volume Nozzle for Enhanced Functionality
- Reliable Solid-residue Discharge Nozzle
The Artful Composition of the Candle Filter Design
-Sturdy Vessel Shell
-The vessel shell, elegantly crafted with a conical bottom, serves the dual purpose of filtering and enhancing the polish of the filter cake.
-The vessel, with its concave bottom, expertly thickens the slurry, showcasing ingenious engineering.
-Precision-engineered Candle Filter Element
-Efficient Discharge Mechanism for the Filter Cake
-All components, crafted from unique structural materials, meet and exceed process requirements with elegance and precision.
Detailed Features of the 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 |
- Our innovative, fully enclosed solid-liquid separation system revolutionizes your workflow! Experience seamless integration of filtration, washing, drying, and slag discharge, all within a single, compact closed container. This state-of-the-art design not only streamlines your process and minimizes labor requirements but also ensures zero leakage and eliminates environmental pollution.
- Achieve unparalleled clarity with our exceptional solid-liquid separation system, guaranteeing precise filtration of clear liquids. Simultaneously, effortlessly discharge solid materials as dry filter cakes, eliminating the cumbersome filter element cleaning required by traditional systems. Embrace a new era of efficiency and cleanliness!
- With cutting-edge PLC automatic control, our system offers unmatched automation across the entire process. Compared to conventional filter presses, closed plate types, and suction filter cylinders, our technology slashes labor and time costs while ensuring seamless and continuous production. Elevate your operations to new heights of productivity and reliability!
- Discover the future of filtration with our automated cleaning and regeneration solid-liquid separation system. Enjoy the convenience of reusable filter media that eradicates the need for frequent replacements and the handling of consumables inherent in traditional filters. Witness sustained efficiency and reduced waste!
- Attain superior filtration with sub-micron accuracy, tackling challenges like leakage and incomplete filtration head-on. Our advanced system effectively processes materials with high solid content, overcoming the limitations of conventional equipment and delivering outstanding results every time.
- Featuring a robust static main body with dynamic backflushing, our system ensures a low failure rate and minimal operating costs. Experience the perfect blend of durability and efficiency, designed to boost your operational success.
- Optimize air consumption with our innovative filter element grouping design, which not only reduces backflushing requirements but also isolates damaged filter elements. This smart approach enhances overall system performance and reliability.
- Candle filtration is rapidly becoming the preferred choice over traditional filter presses and bag filtration, thanks to its ability to maintain continuous production. Enjoy heightened efficiency, reduced accident risks, and significant labor savings, making it the leading solution for modern enterprises.
Beverage Industry
Discover the exceptional efficiency of our Candle Filter, meticulously designed for applications spanning 1-60 M2 in the beverage industry. Experience unparalleled filtration precision with fructose syrup, and achieve immaculate decarbonization and decolorization of citric, malic, sulfuric, and lactic acids. Our filter ensures the finest quality filtration for lycopene, MSG, and yeast. Elevate your filtration standards with our precision filtering for soybean protein and a variety of fruit juices. Achieve the highest clarity in soy sauce and vinegar, while maintaining the purity of alcohol and beverages. Our filter also excels in the precise purification of crude, edible, and blended oils.
Pharmaceutical Industry
Optimize your biopharmaceutical processes with our Candle Filter, perfectly suited for the pharmaceutical industry. Ensure impeccable filtration of fermentation broths, and achieve crystalline clarity in your solutions. Our filter guarantees the thorough filtration of mother liquors or suspensions, and the effective recovery of valuable catalysts, enhancing the efficiency and quality of your pharmaceutical operations.
Chemical Industry
Transform your chemical filtration processes with our Candle Filter, expertly crafted to meet the rigorous demands of the chemical industry. Achieve superior filtration and recovery of pesticide intermediates and refine waste plastics and tires through precise titanium dioxide and black carbon powder filtration. Perfectly filter biomass oil derived from straw, and recover PTA mother liquor with ease. Experience the purity of high-quality alumina and solvent oils like white oil. Our filter excels in the polyether desalination of oil sand crude oil, while ensuring the optimal filtration of filter aids such as activated carbon and clay. Achieve efficient amine liquid desulfurization and decarbonization, and maximize the recovery and filtration of PTA and PVC powders. Additionally, our filter aids in the production and filtration of inorganic salts, cementing its place as an indispensable tool in the chemical industry.
Water Treatment
Revolutionize water treatment processes with our advanced Candle Filter, designed to handle a spectrum of wastewater types with precision. From the complex filtration of heavy metal wastewater from electroplating and circuit board production to the stringent purification of battery and magnetic material wastewater, our filter delivers unparalleled results. Tackle the challenges of electrophoresis, coal mine, and coal stacking wastewater, as well as fluorine-containing effluents. Our filter excels in suspended solids wastewater filtration, electronic and optical lens grinding liquid purification, and the precision filtration of pigment latex waste paint water. Ensure the highest standards of water clarity in river, groundwater, spring, swimming pool, and bath water, elevating your water treatment capabilities to new heights.
Grease Ink
Enhance the quality and performance of industrial and edible oils with our superior Candle Filter. Achieve meticulous dewaxing, decolorization, and fine filtration of various oils, including industrial, biodiesel, hydraulic, waste, mixed, base, diesel, kerosene, lubricating, and transformer oils. Our filter also excels in the dewaxing, decolorization, and filtration of vegetable and edible oils, delivering unparalleled purity and quality for your grease ink applications.

Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd. stands as a beacon in the realm of industrial precision filtration and self-cleaning filtration systems. With a wealth of experience spanning over a decade, our company boasts unparalleled design and R&D prowess. By harnessing cutting-edge filtration technology combined with top-tier product resources, we deliver all-encompassing, one-stop filtration solutions tailored to meet our customers' needs perfectly.
Our commitment to excellence is underscored by SLOT's attainment of the ISO9001 quality management system certification, alongside prestigious certification from SGS. We strictly conform to international standards, adhere to industry-specific regulations, and cater to bespoke client requirements across all facets of product design and manufacturing. SLOT remains dedicated to the evolution of high-performance, high-quality filtration equipment and precision filtration components.
SLOT's automatic self-cleaning filter systems have found extensive application across a multitude of industries, including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing sectors. Our company has cultivated enduring and stable partnerships with a plethora of renowned industrial enterprises both on the domestic front and on the global stage.
Our exceptional product filter performance, state-of-the-art manufacturing capabilities, and exemplary professional services have garnered SLOT widespread acclaim. When your requirements elevate the need for filter system excellence in performance, quality, safety, and service, SLOT stands as your reliable and trusted long-term partner.

Quality Management: Our unwavering commitment to quality ensures that every product meets the highest standards, reflecting our dedication to excellence and customer satisfaction.
FAQ
1. Who are we?
We are Hebei Slot Filter Technology Co., Ltd., proudly stationed in Hebei, China since 2014. We serve a diverse global clientele, with our primary markets being North America (40.00%), Western Europe (30.00%), and South Asia (10.00%).
In addition, we extend our reach to Africa (10.00%) and the Middle East (10.00%). Our dynamic team comprises approximately 11-50 dedicated professionals, ensuring personalized service and attention to detail.
2. How can we guarantee quality?
Consistent quality assurance begins with a meticulous pre-production sample review before we proceed with mass production.
Furthermore, we conduct a comprehensive final inspection before each shipment to ensure that our products exceed expectations.
3. What can you buy from us?
Our product range includes: Johnson Screen, Bridge Slotted Well Screens, Sand Control Well Screens, Gravel Pre-pack Screen, Pipe-based screen, Perforated Pipe, and API/5CT Casing and Tubing. These innovative solutions are designed to meet the diverse needs of our clients, offering reliability and performance.
4. Why should you buy from us and not from other suppliers?
1. We offer comprehensive OEM & ODM services to tailor our products to your exact specifications.
2. Our skilled team can assist you in designing precise and detailed drawings for your projects.
3. With our in-house, professional research and development group, we continually push the boundaries of innovation.
5. What services can we provide?
We offer a broad spectrum of delivery terms to suit your needs, including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, and DES.
We accept a variety of payment currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, and CHF, ensuring convenience and flexibility in transactions.
Our accepted payment types include T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow, providing secure and efficient payment options.
We communicate fluently in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian, ensuring seamless interaction with our global partners.
If you are interested in becoming our esteemed agent in your local market, we invite you to reach out to us. Together, we can achieve remarkable success.