PROJECT
ISO 9001:2015 Certification – Production of Plastic Extrusion Equipment & Auxiliary Machinery
In underwater pelletizing systems, field engineers frequently encounter trailing pellets or stringy tails during production surges or melt index fluctuations. The instinctive response is to crank up the blade forward pressure. However, while excessive forward pressure might temporarily stop the trailing, it drastically accelerates wear on the die plate and cutter blades. Nanjing Haisi Extrusion breaks down why blade push-back happens and how installing an opposing pneumatic-hydraulic cutter retraction balance system resolves pellet defects permanently.
In the world of plastics extrusion and modification, the Length-to-Diameter (L/D) ratio is a heavily debated specification. With the rise of advanced formulations—including heat-sensitive biodegradable polymers and complex recycled feedstocks—the margin for processing error has shrunk significantly. When specifying advanced polymer compounding equipment, buyers are often confronted with an escalating range of L/D ratios from 28 to 52. But is a longer screw always superior? Nanjing Haisi Extrusion breaks down the mechanical realities of L/D ratios to help you select the optimal configuration for your compounding line.
