High-Quality China Suppliers Factory for High-Quality Candle Filter Cartridge in Spunbond Nonwoven Production Manufacturer, Factory
The polymer melt filter is an essential component of advanced filtration equipment, crucial for high-speed spinning, fine denier spinning, and nonwoven fabric production. This innovative device is primarily designed to filter out impurities and unmelted particles present in polymer melts, thereby protecting spinnerets and enhancing the overall quality of the final product, Our filters incorporate a dual-structure design consisting of coarse and fine filtration systems. The coarse filtration system is strategically positioned between the screw extruder and the metering pump, while the fine filtration device is optimally placed within the spinning assembly. The heart of this filtration solution, the filter element, is expertly crafted by sintering five layers of durable metal wire mesh, ensuring exceptional resistance to high temperatures and high pressures, As a leading supplier and factory in China, we are committed to providing high-quality polymer melt filters that meet the rigorous demands of the industry. Enhance your production process with our reliable filtration solutions that guarantee superior performance and product quality
In the production of spunbonded nonwoven fabrics, to ensure the smooth progress of the spinning process and reduce the occurrence of phenomena such as filament breakage and material dripping, two sets of filtration devices are generally installed. The first filter (coarse filter) is installed between the screw extruder and the metering pump. Its main function is to filter out larger impurities to extend the service life of the second filter device, protect the metering pump and spinning pump, increase the back pressure of the extruder, and thereby facilitate the exhaust and plasticizing of the material during compression. The second filter (fine filter) is installed in the spinning assembly. Its main function is to filter out finer impurities, crystal points, etc., prevent the spinneret from clogging, ensure the smooth progress of spinning, and improve the quality of the fibers.
Main Features
High filtration flow rate by good pleated technology
Particle filtration performance well by multiple filter layers
Corrosion resistance; High Temperature And Pressure Resistance
Filter element is washable by ultrasound
Specification
The melt filter element is a kind of rod-shaped structure which sintered from five layers of metal wire mesh. At the center of the rod is a reinforcing skeleton, which withstands the pressure during filtration. The initial pressure used for the filter element is 2.156×10⁶ Pa, and the pressure during switching is 8.33×10⁶ Pa. The filter elements come in several models such as X6, X7, X11, and X12, and the mesh diameters range from 20μm to 40μm.
The pore size of the mesh is the filtration accuracy of the filter element.
Filter Raw Material
SUS304/316L
Filter Media
Metal sintering mesh / Stainless steel wire mesh
Filtration Rating
1–200 Micro
Filter Length
16–60 inch (406.4–1524mm)
Working Temp.
≤350℃
Allowed Pressure Difference
10 bar / 14 psi
Connector Type
222 / 226 / 215 / M36 / M28 / M24 / M22 / M20
Note: We can provide high quality polymer pleated candle filters to meet your specific requirements of polymer melt filtration applications.
We list regular candle filter sizes below. These are popular sizes in melt filtration machines, for reference only.
DIAMETER MM
LENGTH MM
SUITABLE FOR FILTRATION MACHINE
Φ35
425MM
PF2T-0.5B / PF2T-1.05B / PF2T-1.95B / PF2T-2.34B
Φ35
485MM
PF2T-1.26B / PF2T-2.34B / PF2T-2.7B / PF2T-3.5B
Φ35
525MM
PF2T-4.0B
Φ35
575MM
PF2T-4.5B / PF2T-5.5B
Φ50
500MM
PF2T-4.5B / PF2T-5.5B
Frequently Asked Questions
QWhat is the role of the coarse filter in a spunbonded nonwoven fabric production line?
The coarse filter (first filter) is installed between the screw extruder and the metering pump. It filters out larger impurities, protects the metering pump and spinning pump, extends the service life of the fine filter, and increases the back pressure of the extruder to facilitate proper exhaust and plasticizing of the material.
QWhat materials are used to manufacture the candle filter elements?
The candle filter elements are made from SUS304 or SUS316L stainless steel. The filter media consists of metal sintering mesh and stainless steel wire mesh, offering excellent corrosion resistance and durability under high temperature and pressure conditions.
QWhat is the maximum working temperature and pressure for these candle filters?
These candle filters can withstand a working temperature of up to 350℃ and an allowed pressure difference of 10 bar (14 psi), making them suitable for demanding polymer melt filtration applications.
QCan the candle filter elements be cleaned and reused?
Yes. The filter elements are washable using ultrasonic cleaning methods, which helps restore their filtration performance and extends their operational lifespan, reducing overall replacement costs.
QWhat filtration accuracy and size options are available?
The candle filters offer a filtration rating ranging from 1 to 200 microns. Filter lengths range from 16 to 60 inches (406.4–1524mm), and models include X6, X7, X11, and X12, with mesh diameters from 20μm to 40μm to suit various application requirements.
QCan you supply custom candle filters for specific melt filtration machines?
Yes. We provide high quality polymer pleated candle filters tailored to meet specific requirements of polymer melt filtration applications. Standard sizes are available for popular filtration machines such as PF2T series, and custom specifications can be arranged upon request.
