Application-specific pelletizing systems
The pelletizing of polymers is becoming more and more demanding. New polymer products require adapted processes, such as hot-melt adhesives and micropellets, in direct crystallization or recycling. In addition, environmental protection standards demand optimization of existing processes in plastics production and processing by the various industrial customers. MAAG supports this trend in relation to underwater pelletizing systems with relevant application-specific solutions. Our innovative strength and technology development give our customers scope to develop and grow their business.
Hot-melt adhesive (HMA) and micropellets
MAAG’s systems for the production of hot-melt adhesive (HMA) are designed for pellet throughputs of up to 4,550 kg/h. They can be used as a stand-alone solution downstream of the extruder, or in conjunction with mixers and kneaders with melt discharge pumps.
Micropellets with grain sizes of 0.5 to 1.0 mm are a practically dust-free alternative to powder, and are gaining more and more attention in the polymer industry. In the masterbatch sector in particular, MAAG offers specific solutions that enable highly precise dosing of small quantities of micropellets with good dispersion.
The direct crystallization process involves keeping enough heat in the pellets so that they crystallize without needing additional external heat, which cuts energy consumption. A further aim is that the free-flowing pellets can be routed directly into their packaging, or to aftertreatment processes such as SSP. The Gala direct crystallization system’s CPT process enables customers in the polymer industry to implement such processes, and has been shown to be a superior solution.
MAAG’s Gala pellet machines and underwater pelletizing systems also provide smart solutions for the growing market in the recycling of polymers of all kinds. This is focused on Gala’s range of centrifugal dryers. The i-Heat process, for which a patent application has been filed, offers the advantages of retaining the inherent heat and significantly improving the moisture content of the pellets.