PA (polyamide) is a widely used engineering plastic with excellent mechanical properties, chemical resistance, and thermal stability. However, PA is also highly hygroscopic, meaning it absorbs moisture from the air and environment. This moisture can cause various problems during processing and application, such as degradation, discoloration, bubbles, cracks, and reduced strength. Therefore, it is essential to dry PA pellets before processing to ensure optimal quality and performance.
LIANDA MACHINERY, is a globally recognized plastic recycling machine manufacturer who specializes in waste plastic recycling machine and plastic dryer. Since 1998, LIANDA MACHINERY has been producing plastic recycling machines that are simple, easy, and stable for plastic producers and recyclers. More than 2,680 machines have been installed in 80 countries, including Germany, UK, Mexico, Russia, America, Korea, Thailand, Japan, Africa, Spain, Hungary, Columbia, Pakistan, Ukraine, etc.
One of the products that LIANDA MACHINERY offers is the PA Dryer, a solution for drying of PA pellets. The PA Dryer is designed to dry and crystallize PA pellets in one step, achieving a final moisture content of ≤50ppm. The PA Dryer uses a rotation drying system that ensures uniform drying, good mixing, and no clumping. The PA Dryer also has accurate temperature control and quick drying time, preventing yellowing and degradation of PA pellets. The PA Dryer is controlled by a Siemens PLC, which provides total process visibility and allows users to save different settings and recipes for different materials. The PA Dryer has the following advantages:
• Up to 60% less energy consumption than conventional drying system
• Instant start-up and quicker shut down
• No segregation of products with different bulk densities
• Independent temperature and drying time set
• No pellets clumping and stick
• Easy clean and change material
• Careful material treatment
The PA Dryer works as follows:
• At the first step, the only target is to heat up the material to a preset temperature. The dryer adopts a relatively slow speed of drum rotating, and the infrared lamps power of the dryer will be at a higher level. Then the plastic resin will have a fast heating until the temperature rises to the preset temperature.
• Once the material reaches the temperature, the speed of the drum will be increased to a much higher rotating speed to avoid the clumping of the material. At the same time, the infrared lamps power will be increased again to finish the drying and crystallization. Then the drum rotating speed will be slowed down again. Normally, the drying and crystallization process will be finished after 15-20 minutes. (The exact time depends on the property of the material)
• After finishing the drying and crystallization process, the IR Drum will automatically discharge the material and refill the drum for the next cycle. The automatic refilling, as well as all relevant parameters for the different temperature ramps, is fully integrated in the state-of-the-art Touch Screen control.
The PA Dryer is suitable for a wide range of applications, such as:
• Injection molding: The PA Dryer can dry PA pellets for injection molding, ensuring high-quality products with smooth surfaces, accurate dimensions, and consistent properties.
• Extrusion: The PA Dryer can dry PA pellets for extrusion, producing uniform and stable products with excellent mechanical and thermal properties.
• Blow molding: The PA Dryer can dry PA pellets for blow molding, creating hollow products with high strength and durability.
• 3D printing: The PA Dryer can dry PA pellets for 3D printing, enabling complex and precise shapes with high resolution and accuracy.
Overall, the PA Dryer is a solution for drying of PA pellets that can improve the quality and performance of PA products in various industries. LIANDA MACHINERY is proud to offer this product to its customers, along with a wide range of plastic recycling machines and plastic dryers.
For more information, please contact us:
Email: sales@ldmachinery.com / liandawjj@gmail.com
WhatsApp: +86 13773280065 / +86-512-58563288
Post time: Jan-11-2024