
The Industrial Candle Filter is a cutting-edge solution in automatic filtration technology. This marvel of engineering employs a sophisticated filtration process that utilizes the filter cartridge as its core framework. The innovative design incorporates both filter cloth and filter cake layers that elegantly envelop the filter cartridge, achieving unparalleled liquid clarification. With the power of pump pressure, this remarkable device guarantees optimal filtration efficiency, ensuring that every drop of liquid is processed to perfection.
Our Candle Filter offers the versatility to customize filter materials based on the specific requirements of your filtration medium. Whether your needs demand variations in filter precision or the handling of diverse filter residue viscosities, this filter adapts seamlessly to meet the highest standards. Choose from a range of materials tailored to optimize your filtration process, ensuring exceptional performance every time.
As the slurry is meticulously pressed into the pressure vessel, it flows in an upward direction. This strategic movement allows solid particles to gracefully settle on the filter candle's surface, ensuring a uniformly suspended environment and the formation of an immaculate filter cake.
A flawless filter cake elegantly develops on the outer layer of each robust stainless steel candle filter element. Designed with precision, the filter candles in every row are ingeniously connected at the top through series and parallel arrangements, tailored meticulously to meet process specifications.
Ingeniously engineered, the slurry discharge pipe seamlessly integrates with the level set. Each set tube, meticulously attached to the main branch line via state-of-the-art electric valves, orchestrates the filtration and reverse wash processes. These advanced valves enhance filter cake formation on the filter candles by deftly controlling the flow. Under the mastery of electric controls, all header slurries are efficiently channeled to the main branch line, crafting a seamless, looped filtration process.
- Overview and vent nozzle
- Saddle flange for heel filtration spray jet nozzle
- Filtrate nozzles
- Register
- Filter element
- Pressure vessel shell
- Filter medium (cloth, felt, membrane etc.)
- Cloth clamp ring
- Product feed nozzle
- Heel volume nozzle
- Solid-residue discharge nozzle
The Composition of the Candle Filter Design
-Vessel shell
-Featuring a conical bottom, the vessel shell is meticulously crafted for seamless filtering and polishing of the filter cake.
-A vessel with a gracefully concave bottom is employed to enhance slurry thickening.
-Candle filter element
-Discharge mechanism of the filter cake
-All components are crafted from exceptional structural materials, tailored to meet distinct process requirements.
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 |
- Experience the unparalleled sophistication of a fully enclosed solid-liquid separation system. From meticulous filtration to thorough washing, efficient drying, and seamless slag discharge, every step is enclosed within one secure container. This innovation not only streamlines the entire process flow but also significantly diminishes labor requirements. You can enjoy an operation free from leaks and devoid of environmental concerns.
- Achieve exemplary solid-liquid separation with our highly advanced system, designed for optimal dry and wet separation. It guarantees the crystal-clear precision of the filtered liquid while seamlessly discharging solids as a dry filter cake. This process eliminates the cumbersome task of manual filter element cleaning, a common drawback in traditional filters.
- Harness the power of PLC automatic control within our sophisticated system. The high degree of automation elevates operational efficiency far beyond that of conventional filter presses, closed plate types, and suction filter cylinders. Enjoy significant savings in labor and time costs, while ensuring the unbroken continuity of your enterprise's production.
- Our solid-liquid separation system, equipped with automatic cleaning and regeneration, along with reusable filter media, revolutionizes the way filtrations are conducted. It effectively addresses the shortcomings of traditional filters, which often require frequent replacements and the handling of numerous consumables.
- With cutting-edge sub-micron filtration accuracy, our system tackles the challenges of leakage and incomplete filtration that plague traditional equipment, especially when processing materials high in solid content. Experience precision and reliability like never before.
- Featuring a static main body enhanced by dynamic backflushing mechanisms, our system boasts a remarkably low failure rate alongside reduced operational costs. It is the epitome of durable and economical filtration.
- Ingeniously designed filter element grouping significantly reduces backflushing air consumption while isolating any damaged filter elements, thus enhancing the system's resilience and efficiency.
- Candle filtration is the contemporary filtration method of choice, supplanting traditional filter press and bag filtration technologies. It not only sustains uninterrupted production processes but also minimizes production accident risks. Enjoy a boost in production efficiency, significant labor savings, and enhanced operational safety.
Beverage Industry
Experience unmatched filtration excellence with our Industrial Candle Filter in the Beverage Industry. Seamlessly handle fructose syrup filtration and achieve perfect decarbonization and decolorization of citric, malic, sulfuric, and lactic acids. Ensure pristine lycopene filtration and master the precision filtration of monosodium glutamate. Achieve clarity and purity in yeast and soybean protein filtration, and enhance the quality of various fruit juices. Our filter also excels in refining soy sauce, vinegar, alcohol, beverages, crude oil, edible oils, and blended oils, making it an indispensable ally in achieving the highest standards of quality.
Pharmaceutical Industry
Elevate your pharmaceutical processes with our cutting-edge filtration solutions, designed for the biopharmaceutical industry. Our filters provide exceptional filtration for fermentation broths, ensuring crystal clarity and mother liquor or suspension purity. Efficiently recover catalysts, ensuring no valuable materials are lost in the process, and maintain the highest standards of filtration for your pharmaceutical needs.
Chemical Industry
In the Chemical Industry, our Industrial Candle Filter revolutionizes filtration processes. Achieve efficient filtration and recovery of pesticide intermediates, and refine waste plastics and tires by filtering titanium dioxide and black carbon powder. Our filter excels in processing biomass oil from straw and recovering PTA mother liquor. Experience superior filtration of high-purity alumina, solvent oils like white oil, and polyether for oil sand crude oil desalination. Maximize recovery with our effective filtration of filter aids, amine liquids, and achieve seamless PTA and PVC powder filtration. Our system is also ideal for the production and filtration of various inorganic salts, ensuring top-tier quality and precision.
Water Treatment
Our Industrial Candle Filter sets new standards in the Water Treatment sector, adeptly managing the filtration of diverse wastewaters, including those with heavy metals from electroplating, circuit board production, and hot-dip galvanizing. It is equally adept with battery, magnetic material, electrophoresis, coal mine, and fluorine-containing wastewaters. Our filter handles suspended solids with finesse and ensures precision in processing grinding liquids for electronic and optical lenses. Achieve superior filtration of pigment latex waste paint water and enjoy crystal-clear river, groundwater, spring, swimming pool, and bath waters, securing optimal water quality in every scenario.
Grease Ink
Optimize your grease and ink production with our Industrial Candle Filter, designed to deliver unparalleled dewaxing, decolorization, and fine filtration of industrial oils. Whether you're refining biodiesel, hydraulic oil, waste oil, mixed oil, base oil, diesel, kerosene, lubricating oil, or transformer oil, our filter ensures premium quality. It also masters the dewaxing, decolorization, and filtration of vegetable and edible oils, ensuring your end-products are of the highest purity and free from impurities.

Hebei SLOT Filter Technology Co., LtdHebei SLOT Filter Technology Co., Ltd is a pioneering force in the realm of industrial precision filtration and self-cleaning solutions. With an impressive decade of industry insight, our company excels in both innovative design and robust R&D capabilities. Harnessing cutting-edge filtration technology alongside premium product resources, we are dedicated to offering customers all-encompassing, one-stop filtration solutions that meet a myriad of needs.
SLOT has proudly earned the ISO9001 quality management system certification and received prestigious recognition from SGS. By strictly following international standards, niche industry regulations, and tailored client specifications, we continually strive to develop filtration equipment and precision components of unparalleled performance and quality.
Our SLOT automatic self-cleaning filter systems are essential across various sectors, including petrochemicals, fine and specialty chemicals, energy and power, water treatment, automotive manufacturing, culinary arts, and metalworking. We have built enduring and strategic alliances with numerous renowned industrial enterprises, both within the domestic sphere and on the global stage.
Renowned for exceptional filtration prowess, our advanced manufacturing capabilities and dedicated service standards have enabled SLOT to garner widespread acclaim. For those demanding superior filter system performance, quality, safety, and personalized service, SLOT stands as your steadfast and trusted partner well into the future.

Uncompromising Quality Management
Frequently Asked Questions
1. Who are we?
Nestled in the heart of Hebei, China, our company was established in 2014 and has since been expanding its influence across the globe. We proudly serve a diverse clientele with North America accounting for 40%, Western Europe 30%, and a growing presence in South Asia (10%).
Our reach extends to Africa and the Mid East, each contributing 10% to our sales. With a dynamic team of approximately 11-50 dedicated professionals in our office, we are poised for continued growth.
2. How can we guarantee quality?
We ensure superior quality through rigorous protocols, starting with a pre-production sample to set the benchmark for mass production.
A comprehensive final inspection is conducted before every shipment, ensuring that our products meet your highest standards.
3. What can you buy from us?
Explore our premium offerings, including Johnson Screen and Bridge Slotted Well Screens, expertly designed for optimal sand control. Our selection also includes Gravel Pre-pack Screens, Pipe-based screens, Perforated Pipes, and top-tier API/5CT Casing and Tubing.
4. Why should you buy from us not from other suppliers?
1. We offer comprehensive OEM & ODM support tailored to your needs.
2. Our expert team is dedicated to assisting you in crafting detailed design drawings.
3. Backed by a professional research and development group, we strive for innovation and excellence.
5. What services can we provide?
We cater to a wide range of delivery terms including FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, and DES, ensuring seamless transactions.
Our payment infrastructure supports a variety of currencies such as USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, and CHF, enhancing accessibility and convenience.
With multiple payment options available, including T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow, you can transact with confidence.
Communicate with ease in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, or Italian, as our multilingual team is ready to assist.
If you're interested in becoming our esteemed agent within your local market, we invite you to connect with us. Your partnership is a gateway to mutual success.