Quality Identification of Plastic Granulator

plastic granulator is to heat the plastic raw materials to a viscous flow state. Under the action of pressure, they are continuously extruded through the extrusion die, and then cooled into a strip glass state. Finally, cylindrical or oval plastic particles are obtained through a granulation device.
equipment is widely used in plastic extrusion molding, especially in the plastic recycling industry. It can manufacture waste plastics into specific shapes and is suitable for various materials with a melting point (softening point) within 300°C, such as waste plastic films, woven bags, agricultural convenience bags, basins, barrels, beverage bottles, furniture, daily necessities, etc.
Zhongke Testing and Appraisal Institute can provide plastic granulator quality appraisal services and make accurate appraisals in terms of product design analysis, load analysis and product quality analysis.

single-screw recycled plastic granulator: mainly used to produce waste plastic films, woven bags, basins, barrels, beverage bottles, furniture, daily necessities, etc.
single-screw first-stage plastic granulator: mainly used to produce plastic granules of various materials such as PVC, PE, PS, PP, etc.
single-screw first-stage granulator: can be adapted to a variety of plastic materials, and the plasticization is better than the single-screw first-stage granulator.
conical twin-screw plastic granulator: Not only can it be used to produce TPR pellets, PVC cable pellets, and PVC transparent pellets, the extrusion host can also produce plastic pipes, plastic profiles, plastic sheets and some polyolefin plastic products, with wide applicability.
co-rotating parallel twin-screw extruder: used for granulating various plastics with good dispersion.

JB/T 5421-2013 Plastic film recycling extrusion granulation unit
ANSI B151.11-2021 Plastic machinery Safety requirements for granulators, granulators, dicing machines and single-axis rotary grinders for plastic materials
JB/T 5416-2005 Plastic extrusion dry hot-heating granulation auxiliary machine

A technology company signed a purchase agreement with a machinery company to purchase 2 plastic pellet equipment of model XXXX from the machinery company. However, after it was officially put into use, the technology company discovered that the plastic pellet equipment was malfunctioning one after another. Later, due to inconsistent negotiations, the machinery company went to court.
Our company was entrusted by the court to undertake the quality analysis of the "plastic granulator" involved in this case.
identification and analysis results: The
quality analysis expert group discussed and comprehensively analyzed the relevant information, on-site investigation and inspection data, and inspection and testing data of the "plastic granulator" involved in the case, and made the following quality analysis opinions:
The plastic granulator involved in the case is extruded from the main engine The barrel heating parts, mechanical transmission parts and pulleys of the output and auxiliary extruders have no safety protection devices and there are no equipment nameplates on the quality issues, which do not meet the standard requirements; the
involved plastic granulator host extruder and auxiliary extruder have traces of previous production and use, and the remaining plastic equipment that has not been dismantled is being put into production normally.