Filter Leaf
What is a Filter Leaf?
A Filter Leaf is a core, reusable filtration component designed specifically for industrial pressure leaf filter systems (both vertical and horizontal types). It consists of multiple layers of precision-woven stainless steel wire mesh tightly stretched and secured within a heavy-duty metal frame.
Our Stainless Steel Filter Leaves are engineered for high-efficiency solid-liquid separation under challenging high-pressure and high-temperature environments.
By utilizing premium-grade SS304 or SS316L, these elements deliver exceptional corrosion resistance, high mechanical stability, and an extended service life. The internal architecture typically features a 3-layer, 5-layer, or 7-layer mesh configuration: fine outer filtration mesh for precision clarity, intermediate binding layers, and a rigid, thick central drainage mesh to provide structural integrity. The precise combination ensures optimal flow rates, minimal pressure drops, and flawless cake discharge during backwashing or pneumatic vibration cycles.
Proper maintenance is key to extending the service life of your equipment. Read our comprehensive guide on
Advantages of Filter Leaf
Multi-Layer Robust Architecture
Heavy-duty wire mesh combinations resist deformation and wrinkling under high pressure.
Excellent Cake Discharge
Smooth surface weave options allow for fast, complete, and automated cake removal, minimizing maintenance downtime.
Superior Thermal & Chemical Resistance
Easily handles aggressive solvents, crude oils, acidic or alkaline liquids, and high operating temperatures.
Precision Frames & Perfect Sealing
Custom-fabricated frames (riveted, bolted, or welded) ensure a leak-free fit within the filter vessel to prevent any fluid bypassing.
Eco-Friendly & Cost-Effective: Fully washable and reusable, providing a highly sustainable alternative to disposable filter media.
Our Service
We are committed to providing high-quality Filter Leaf with reliable performance, flexible production solutions, and professional service. From sampling to mass production, we help customers achieve efficient and cost-effective filtration solutions for different industrial applications.
Rapid Prototyping & Sampling
We provide quick sample preparation tailored to your exact specifications, allowing you to thoroughly test material performance and verify specifications prior to mass production.
Flexible Low-Volume Production
Our adaptable manufacturing lines comfortably accommodate both small-batch trial orders and high-volume runs, helping you minimize inventory risks and test the market with ease.
Rigorous Quality Assurance
Every single filter unit undergoes strict inspection to guarantee precise micron ratings, robust seam strength, and uncompromised structural integrity.
Tailored Customization Services
From custom dimensions and micron sizes to specialized rim/ring configurations, we manufacture bespoke filtration solutions directly matching your technical drawings or process needs.
Factory-Direct Pricing
By optimizing our production lines and supplying directly from our facility, we offer highly competitive, cost-effective pricing without sacrificing product reliability.
Global Export Expertise
With years of experience serving international markets, we maintain stringent material traceability and compliance standards to ensure seamless delivery and dependable quality worldwide.+
Applications of Filter Leaf
Stainless steel filter leaves serve as a premier solution for liquid-solid separation across a diverse range of process industries. Engineered with precise micron ratings, high mechanical durability, and excellent chemical compatibility, they deliver dependable efficiency for both high-volume clarification and high-precision pressure filtration.
Edible Oil & Food Processing
Crucial for the purification of crude vegetable oils (such as soybean, palm, sunflower, and rapeseed oil). They are heavily relied upon for removing bleaching earth, activated carbon, and nickel catalysts during hydrogenation, as well as dewaxing and winterization processes. They are also used to clarify sugar syrups, liquid gelatin, fruit juices, and malt beverages.
Chemical & Petrochemical Industry
Extensively applied in catalyst recovery processes, resin purification, plasticizer filtration, and the processing of organic chemical intermediates. They are highly efficient at filtering molten sulfur in sulfuric acid production plants, effectively handling harsh, aggressive chemical mixtures and high operating temperatures.
Biodiesel & Renewable Fuel Production
Used to filter impurities, residual catalysts, and trace water-washed sediments out of unrefined biodiesel feeds. The heavy-duty 316L mesh configuration provides long-term stability against the corrosive nature of fatty acid methyl esters (FAME) and chemical alcohols.
Water Treatment & Environmental Engineering
Widely adopted in municipal and industrial wastewater treatment systems for sludge dewatering and polishing industrial effluents. They effectively trap suspended solids and concentrated particulate matter, facilitating automated cake discharge to reduce waste volume and secure clean, environmentally compliant discharge water.
Pharmaceuticals & Biotechnology
Engineered for high-purity separation of Active Pharmaceutical Ingredients (APIs), antibiotics, and fermentation broths. The smooth, cleanable stainless steel surface prevents batch-to-batch cross-contamination and withstands aggressive solvent extractions and stringent CIP (Clean-in-Place) sterilization cycles.
Mining, Metallurgy & Mineral Processing
Utilized in the clarification of pregnant leach solutions, electrolyte purification circuits, and copper/zinc/nickel recovery processes. These leaves are customized with reinforced structures to handle abrasive mineral slurries, heavy solids loading, and acidic leaching environments without tearing.
Technical Specifications
| Model | OD (mm) | Filter area (m²) |
| LDF-600-R | 600 | 0.28 |
| LDF-800-R | 800 | 0.5 |
| LDF-1000-R | 1000 | 0.79 |
| LDF-1200-R | 1200 | 1.13 |
| LDF-1600-R | 1600 | 2.01 |
| LDF-1800-R | 1800 | 2.54 |
| LDF-2000-R | 2000 | 3.14 |
FAQ
01.What are the signs that a filter leaf needs cleaning, repair, or replacement?
A sudden drop in filtration flow rate or an unusual increase in operating pressure, which usually indicates severe mesh blinding or improper cake discharge.
Cloudy filtrate or solids bypassing the filter, which typically points to a torn outer filtration mesh, worn gaskets, or a damaged discharge nozzle.
Structural warping or bending of the leaf frame, often caused by excessive pressure spikes or uneven cake distribution during operation. Regular ultrasonic cleaning and timely mesh replacement (especially when using bolted frames) can significantly extend the lifespan of your core equipment.
02.Can your filter leaves be customized to fit specific equipment brands?
03.Which material should I choose: SS304, SS316, or SS316L?
SS304 is cost-effective and highly suitable for standard edible oil processing, food-grade sugar syrups, and mild chemical applications.
SS316/SS316L offers superior resistance to pitting corrosion and acids. It is highly recommended for harsh chemical processing, molten sulfur filtration, biodiesel production, and pharmaceutical processes where strict corrosion resistance and material purity are mandatory.
04.How do I know if I need a riveted, bolted, or fully welded frame?
Riveted Frames are the industry standard, offering excellent stability and cost-efficiency for most standard applications.
Bolted Frames feature a removable design that allows you to open the frame and replace only the wire mesh cloth if it becomes worn or damaged, lowering long-term maintenance costs.
Fully Welded Frames provide the maximum possible sealing performance and rigidity, making them ideal for high-vibration applications or highly hazardous chemical processes where absolute zero-leakage is required.
05.What is the typical lead time for custom samples and bulk orders?
06.How do you ensure the quality and consistency of your filter leaves?
We're professional filter leaf manufacturers and suppliers in China. If you're going to wholesale bulk filter leaf made in China, welcome to get more information from our factory. Also, customized service is available.