
Introducing our Candle Filter featuring Flexible Cartridge Sizes, meticulously engineered for unrivaled efficiency in filtration processes. This state-of-the-art automatic filter equipment utilizes a robust filter cartridge as its core component. It delivers superior liquid clarification through an innovative design where filter cloth and filter cake layers envelop the cartridge, harnessing pump pressure to ensure precision and purity.
Our Candle Filter stands out with its adaptability, offering a selection of diverse filter materials tailored to meet your specific needs. Whether considering the filter medium, desired precision, or residue viscosity, our product ensures optimal performance across various applications.
As the slurry gracefully enters the pressure vessel, it consistently travels from the bottom up, promoting optimal conditions for solid particles to settle seamlessly on the filter candle's surface. This meticulous process ensures a uniform suspension, crafting a perfect filter cake every time.
Intricately crafted filter cakes elegantly form on the polished outer surface of each stainless steel candle filter element. Reflecting precision engineering, the filter candles are meticulously connected in series and parallel configurations according to design requirements, ensuring perfect alignment with process results.
The sophisticated slurry discharge system is strategically linked to the level set. Each tube seamlessly integrates with the primary branch line via electronically controlled valves. These smart valves manage filtration and reverse wash operations, precisely optimizing filter cake formation online by regulating flow. All slurry headers are efficiently channeled to the main branch line under electric control, creating a continuous loop filtering 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
-The vessel shell, elegantly designed with a conical bottom, facilitates efficient filtering and enhances the polish of the filter cake.
-A vessel boasting a concave bottom is expertly utilized to thicken the slurry, enhancing process efficiency.
-Candle Filter Element
-A sophisticated discharge mechanism for the filter cake ensures seamless operation.
-All components are crafted from distinctive structural materials, precisely tailored to meet stringent 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 |
- Discover unparalleled efficiency with our fully enclosed solid-liquid separation system. This ingenious design conducts the entire process-filtration, washing, drying, and slag discharge-within a closed container, streamlining operations. By minimizing process flow and labor demands, it not only prevents leaks but also eliminates environmental pollution, setting a new standard in eco-friendly solutions.
- Our revolutionary solid-liquid separation system delivers precise filtration with seamless dry and wet separation. It guarantees the clarity of filtered liquids and effortlessly discharges solids as dry filter cakes, eliminating the tedious task of cleaning traditional filter elements. This innovation ensures optimal performance and reliability.
- Experience the pinnacle of automation with our PLC-controlled system. Our advanced technology offers an unparalleled level of automation, outshining traditional filter presses, closed plate types, and suction filter cylinders. It significantly cuts labor and time expenses, while enhancing production continuity, ushering your enterprise into a new era of efficiency.
- Benefit from our cutting-edge solid-liquid separation system featuring automatic cleaning and media regeneration. This advanced technology circumvents the frequent replacement and disposal of consumables seen in traditional filters, ensuring long-lasting efficiency and sustainability without interruption.
- Achieve the extraordinary with sub-micron filtration accuracy, as our system excels in resolving the challenges of leakage and incomplete filtration common in traditional equipment. It adeptly handles materials with high solid content, providing unparalleled precision and reliability in separation tasks.
- Engineered for excellence, our system's static main body, combined with dynamic backflushing, guarantees a low failure rate and minimal operating costs, promising robust performance and long-term cost savings.
- Our innovative filter element grouping design reduces backflushing air consumption while cleverly isolating damaged elements, ensuring seamless operation and maximizing efficiency for your business.
- Candle filtration is swiftly becoming the leading choice over filter presses and bag filtration. Its seamless integration into production processes not only bolsters efficiency and cuts labor needs but also significantly minimizes production accident risks, revolutionizing industrial operations.
Beverage Industry
Dive into the refreshing world of beverages with our cutting-edge Candle Filter, perfectly designed for a multitude of filtration needs. From fructose syrup clarity to the decarbonization and decolorization of citric, malic, sulfuric, and lactic acids, our filter excels. It ensures the purity of lycopene, enhances the quality of monosodium glutamate, and achieves meticulous precision in the filtration of yeast and soybean proteins. Elevate the taste and quality of various fruit juices, soy sauce, and vinegar. Our filter also ensures the precision filtration of alcohols, beverages, as well as crude, edible, and blended oils, all while maintaining the highest standards.
Pharmaceutical Industry
The Candle Filter, with its adaptable cartridge sizes, stands as an essential tool in the pharmaceutical industry. It's perfect for the stringent requirements of biopharmaceutical filtration, efficiently managing fermentation broths, crystals, and mother liquors or suspensions. Our filter is adept at catalyst recovery, ensuring the purity and integrity of pharmaceutical products.
Chemical Industry
In the dynamic chemical industry, our Candle Filter ensures unmatched performance in filtration and recovery processes. It handles pesticide intermediates with care and precision, while efficiently processing titanium dioxide and black carbon powder from refining waste plastics and tires. Our filter also processes biomass oil derived from straw, ensuring high-quality results. It is indispensable for PTA mother liquor recovery, high-purity alumina filtration, and purification of solvent oils like white oil. With applications in polyether desalination, oil sand crude oil processing, and amine liquid desulfurization and decarbonization, our filter is versatile. Perfect for PTA and PVC powder recovery, it also supports the production and refinement of inorganic salts, making it an invaluable asset.
Water treatment
Our Candle Filter is a powerhouse in water treatment, tackling a wide array of wastewater challenges. From heavy metal effluents such as electroplating and circuit board production waste to battery and magnetic material wastewaters, it performs with precision. It handles electrophoresis, coal mine, and coal stacking wastewaters, plus those containing fluorine, with efficiency. Also adept at filtering suspended solids wastewater and electronic and optical lens grinding liquids, it ensures impeccable quality. Our filter treats pigment latex waste paint water, as well as river, groundwater, spring, swimming pool, and bath waters, providing unmatched clarity and purity.
Grease ink
In the world of grease ink, our Candle Filter deftly manages dewaxing, decolorization, and fine filtration of a variety of industrial oils. Whether dealing with biodiesel, hydraulic, waste, mixed, or base oils, it delivers outstanding results. It's also effective with diesel, kerosene, lubricating, and transformer oils, ensuring top-notch clarity and quality. Further, it handles dewaxing, decolorization, and filtration of vegetable and edible oils with finesse, underscoring its versatility and reliability across diverse applications.

Hebei SLOT Filter Technology Co., LtdAs a pioneering force in the realm of industrial precision and self-cleaning filtration, Hebei SLOT Filter Technology Co., Ltd. stands as a beacon of innovation and expertise. With over ten years of invaluable industry experience, our company boasts exceptional design and R&D prowess. By harnessing cutting-edge filtration technologies and top-tier product resources, we deliver comprehensive, all-encompassing filtration solutions tailored to meet every customer need.
SLOT proudly holds the ISO9001 quality management system certification and has been accredited by SGS, showcasing our unwavering commitment to quality. We meticulously adhere to international standards, industry-specific regulations, and bespoke client requirements throughout our product design and manufacturing processes. Our mission is to develop high-performance, top-quality filtration equipment and precision components that set new industry benchmarks.
The SLOT automatic self-cleaning filter systems are the preferred choice across a myriad of industries, including petrochemicals, fine chemicals, energy and power, water treatment, automotive manufacturing, food and beverage, and metal processing. We have forged enduring and stable partnerships with a plethora of renowned industrial enterprises, both within our nation and across the globe.
Renowned for exceptional filter performance, cutting-edge manufacturing capabilities, and unparalleled service, SLOT is a name synonymous with excellence. For those with elevated demands in filter system performance, quality, safety, and service, SLOT stands as your trustworthy and enduring partner in achieving operational excellence.

Quality Management: Our commitment to quality is unwavering, ensuring each product meets the highest industry standards through stringent checks and balances at every stage of production.
FAQ: Discover comprehensive insights into our operations with answers to all your queries, ensuring a transparent and informed experience with our company.
1. Who are we?
We are proudly rooted in Hebei, China, and since 2014, we've extended our expertise to markets across the globe, including North America (40.00%), Western Europe (30.00%), and South Asia (10.00%).
Our global reach also spans Africa (10.00%) and the Mid East (10.00%), with a dynamic team of 11-50 professionals driving our success.
2. How can we guarantee quality?
We ensure quality by always providing a pre-production sample prior to mass production;
Each product undergoes a meticulous final inspection before shipment, guaranteeing our hallmark of excellence.
3. What can you buy from us?
Our offerings include premium Johnson Screens, Bridge Slotted Well Screens, and Sand Control Well Screens, along with Gravel pre-pack Screens, Pipe-based screens, Perforated Pipes, and API/5CT Casing and Tubing, catering to diverse industry needs.
4. Why should you buy from us not from other suppliers?
1. We offer unparalleled support for OEM & ODM projects.
2. Our expert team assists in crafting bespoke design drawings tailored to your specifications.
3. Benefit from our dedicated research and development group, continuously pushing the boundaries of innovation.
5. What services can we provide?
Comprehensive Delivery Options: We offer flexible delivery terms such as FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES, ensuring your convenience.
Accepted Payment Currencies: We welcome payments in a variety of currencies including USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF, for your ease.
Versatile Payment Types: Choose from an array of payment methods like T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, and Escrow.
We communicate fluently in English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, and Italian to serve a global clientele.
Interested in becoming our agent in your local market? We welcome your interest and invite you to contact us for an exciting collaboration opportunity.