Explore our primary precision-engineered filter disc components serving plastic extrusion and polymer processing plants across Bac Ninh, Binh Duong, Dong Nai, and Hai Phong.
Over the past decade, Vietnam has established itself as Southeast Asia's primary manufacturing powerhouse for flexible packaging, electronics enclosure films, synthetic textile fibers, and recycled post-consumer resin (PCR). Driven by strong FDI inflows, strategic trade agreements like the EU-Vietnam Free Trade Agreement (EVFTA) and RCEP, major global plastic processing conglomerates have expanded their footprint across Vietnam’s key industrial corridors.
However, high-speed polymer processing line operating at elevated temperatures (up to 340°C) and extreme pressures (up to 300 bar) presents immense filtration challenges. Gel formation, carbonized degradants, foreign inorganic dust, and cross-linked polymer specks can lead to costly line stoppages, film tearing, or optical defects in finished products.
As a leading famous Leaf Disc Filter manufacturer and supplier, our engineered 316L stainless steel leaf disc filter elements provide the solution. By expanding effective filtration surface area by up to 300% compared to traditional flat screen packs within the same hydraulic footprint, our disc filters dramatically extend continuous production cycles, lower shear stress on sensitive polymer chains, and eliminate melt flow stagnation.
Whether you operate a BOPP/BOPET high-speed film line in Dong Nai, an electronic packaging barrier film unit in Bac Ninh, or an rPET pelletizing plant in Binh Duong, our customized filter elements are tailored precisely to your melt pump and continuous screen changer dimensions.
A rigorous look at the metallurgy, fluid dynamics, and mechanical construction that set our leaf disc filters apart from standard marketplace alternatives.
Our leaf discs utilize 316L stainless steel fiber felt combined with multi-layer woven wire mesh. Vacuum sintering fuses the micro-fibers at contact points without clogging pore structures, yielding high void volumes (up to 85%) for maximum dirt-holding capacity.
Engineered with precision-machined internal hubs (Hard Hub for high-pressure differential resistance or Soft Hub for maximum packing density on central collector shafts), ensuring zero bypass and leak-free performance under thermal expansion.
Polymer gels easily deform through coarse mesh. Our graded pore structures capture soft deformable gels through depth filtration, maintaining uniform shear rates and preventing gel breakthrough into downstream die heads.
| Performance Metrics | High-Performance Leaf Disc Filters | Conventional Candle Filters | Standard Flat Extruder Screens |
|---|---|---|---|
| Filtration Area / Unit Volume | Ultra-High (Maximized stacking) | Medium to High | Low (Limited to pipe diameter) |
| On-Stream Operating Life | 300% – 500% Longer | 150% – 200% Base | Short (Frequent screen changes) |
| Maximum Differential Pressure ($\Delta P$) | Up to 210 bar without distortion | 120 – 150 bar max | 30 – 50 bar max |
| Gel Deformability Capture Rate | 99.4% (Multi-layer depth media) | 92.0% | < 65% (Pass-through prone) |
| Cleanability & Reusability | Multiple Pyrolysis / TEG cycles | Multiple cycles | Single-use / Disposable |
| Suitability for Vietnam Recycling (PCR) | Optimal for high-contaminant loads | Moderate | Unsuitable for high-efficiency lines |
How our leaf disc filter elements enhance efficiency and product quality in Vietnam's top industrial hubs.
In Southern Vietnam’s packaging epicenters, high-speed biaxially oriented polypropylene (BOPP) lines run continuously at speeds exceeding 500 m/min. Microscopic carbon particles can cause film breakages, causing hours of line downtime.
Our Solution: 12-inch and 7-inch 316L sintered stainless steel felt leaf discs with absolute micron ratings of 10μm to 20μm. Installed in dual-bolt continuous screen changers, they maintain stable pressure drops for over 60 continuous operational days.
Northern Vietnam’s electronics cluster requires ultra-clean optical grade PET film and display protective layers. Even 5-micron contamination invalidates quality control protocols for display components.
Our Solution: Hard-hub leaf disc filters constructed from 3-micron absolute stainless steel metal fiber matrix. Electro-polished outer rims prevent particle shedding during high-viscosity melt extrusion.
With global brands demanding higher post-consumer recycled content, Vietnamese recyclers face variable melt purity when processing washed bottle flakes containing adhesive residues, PVC traces, and paper fibers.
Our Solution: Heavy-duty, high dirt-capacity coarse wire mesh leaf discs combined with robust drainage mesh layers. Designed to withstand severe pressure spikes while removing inorganic contaminants efficiently.
Medical and hygiene nonwoven fabric production demands unbroken filament continuity through micro-spinneret orifices. Blocked spinnerets cause line defects and uneven web formation.
Our Solution: Extended-area candle and leaf disc elements featuring multi-stage depth filtration that trap sub-micron specks, extending spinneret cleaning intervals up to 400%.
Leveraging geographical proximity, integrated raw material sourcing, and advanced automation to supply Vietnamese factories faster and more affordably.
Our manufacturing base in Zhejiang delivers to Vietnam's major entry points—such as Hai Phong in the North and Cat Lai (HCMC) in the South—within 5 to 7 days via sea freight, or 48 hours via land border crossings (Lạng Sơn / Lào Cai), preventing emergency factory shut-downs.
By bypassing intermediary trading companies, Vietnamese manufacturers save between 25% and 40% on filtration consumable costs while receiving authentic 316L low-carbon stainless steel certified by spectroscopic analysis.
Got a custom filter dimension or legacy European/Japanese filter housing? Our engineering team provides reverse-engineering from physical samples or CAD drawings within 24 hours, shipping prototypes in just 7 days.
Every leaf disc filter batch undergoes strict bubble-point pore size integrity testing, flow resistance benchmarking, and ultrasonic micro-cleaning before vacuum packing. Certified under ISO 9001:2015, our products comply fully with EU CE directives and US FDA 21 CFR requirements for food contact packaging applications.
We provide complete material test reports (MTR), certificate of origin (CO) under RCEP/Form E for preferential tariff clearance in Vietnam, and guaranteed bubble point test documentation.
To maximize operational ROI for our Vietnamese clients, our leaf discs are engineered for up to 10–15 cleaning and furnace regeneration cycles without structural degradation. Recommended cleaning sequence includes:
Got technical queries regarding leaf disc filter integration? Read our answers below or contact our engineering specialists directly.
Leaf Disc Filters offer a significantly larger filtration surface area relative to their external housing volume. This compact geometry minimizes polymer residence time, reduces thermal degradation risks, provides lower initial pressure drop ($\Delta P$), and allows easier assembly and cleaning compared to longer candle filter bundles.
Our standard supply uses high-grade Stainless Steel 316L (1.4404) for outstanding corrosion resistance and mechanical strength up to 360°C. For aggressive polymers or specialty chemical applications, we also manufacture disc filters in Hastelloy C-276, Inconel 600, and 304L stainless steel.
Sintered Metal Fiber Felt provides 3D depth filtration with higher porosity (up to 85%), high dirt-holding capacity, and superior soft gel trapping—ideal for high-purity BOPP/BOPET film and fiber spinning. Multi-layer Woven Wire Mesh offers precise 2D surface filtration, easy surface cleaning, and exceptional mechanical strength for recycled plastic granulation (PCR) and masterbatch lines.
Yes, we regularly produce drop-in replacements for major European (e.g., Maag, Kreyenborg, BKG, Gneuss, Nordson) and Asian (e.g., Japan Steel Works, Shibaura, Starlinger) continuous screen changers and melt filter housings. We match exact outer diameters, hub dimensions, drainage pattern grids, and gasket seat tolerances.
Standard specifications (e.g., 7-inch and 12-inch discs in 10, 20, or 40-micron ratings) are kept in stock for immediate dispatch within 48 hours. Custom engineered OEM orders are typically manufactured within 10 to 14 working days, with express air freight (2-3 days to HCMC/Hanoi) or sea freight (5-7 days to Hai Phong/Cat Lai).
We supply complete export documentation packages including Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin (Form E for zero or reduced tariffs under China-ASEAN FTA), Material Inspection Certificate (EN 10204 3.1), and ISO 9001 Quality Inspection Reports.
Explore our extended range of screen mesh filters, candle cartridges, and plastic recycling granulators tailored for Vietnam’s industrial market.
Reduce polymer melt pressure drops, eliminate gel breakthrough, and lower consumable costs. Request custom CAD drawings, factory pricing, or free sample evaluation kits directly from our engineering team.
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