Melt Filter – Precise Filtration Solution for Granule and Extruder Systems
The melt filter effectively separates and cleans microscopic dirt residues and other foreign matter that pose a risk of damaging the cutting head from the molten plastic exiting the granule extruder. It is manufactured entirely from steel using the latest production technologies to ensure durability and long service life. An optional pressure sensor alerts the operator with both visual and audible signals when the filter is full. Production dimensions vary between Ø250 mm and Ø500 mm depending on the granule extruder capacity.
It features 4 cartridge resistors. The surface is reinforced with a hard welding method and has a hardness level of 58–60 HRC. The ceramic-coated outer plate is supported by its resistor structure. Thanks to its user-friendly control panel and integrated hydraulic unit, it offers easy, safe and efficient operation.
Melt Filter – Advanced and Reliable Filtration for Granule and Extruder Systems
The melt filter is a critical filtration unit designed to purify molten plastic exiting the granule extruder by efficiently separating microscopic contaminants, unmelted particles, paper residues, and other foreign substances that may cause wear or damage to the cutting head and downstream equipment. By ensuring a clean and homogeneous melt flow, the system directly contributes to improved granule quality and stable production performance.
Manufactured entirely from high-strength steel using advanced machining and welding technologies, the melt filter is engineered to withstand high temperatures and pressures encountered in continuous extrusion and recycling operations. Its robust construction ensures long service life and reliable operation even under harsh working conditions.
For enhanced process safety and monitoring, the system can be equipped with an optional pressure sensor that continuously measures melt resistance inside the filter. When the filter reaches its contamination limit, the operator is alerted through both visual and audible warning signals, allowing timely intervention without unexpected downtime. Depending on the granule extruder capacity, the melt filter is produced in diameters ranging from Ø250 mm to Ø500 mm, ensuring compatibility with a wide range of extrusion lines.
The heating system consists of four cartridge-type resistors, providing uniform temperature distribution and preventing melt solidification within the filter body. The internal surfaces are reinforced using a hardfacing welding technique, achieving a hardness level of 58–60 HRC, which significantly increases resistance to abrasion caused by contaminated recycled materials. Additionally, the ceramic-coated outer plate, supported by its integrated resistor structure, enhances thermal insulation and energy efficiency.
Thanks to its user-friendly control panel and integrated hydraulic unit, filter operation and screen replacement processes can be carried out safely, quickly, and efficiently. This practical design minimizes maintenance time, reduces labor requirements, and ensures uninterrupted operation of granule and extruder systems, making the melt filter an indispensable component in modern plastic recycling and extrusion lines.