1. Dry extruder for plastic granulation (bags, film materials) - Upon arrival, inspect the packaging for damage-free condition: After unpacking, retrieve the packing list and conduct an unpacking inspection. Assemble and count the complete mold, accessories, tools, etc., according to the packing list, using the instruction manual and other technical documents.

2. Half of the technical standards and patterns for extrusion molds, the extruded parts are generally made of stainless steel plates, corrosion-resistant material, especially for extrusion molds when extruding modified polyvinyl chloride. Heat treated to HRC24 or above to ensure service life. There should be no defects such as dents, scratches, burrs, adhesions, or rust.

Molds, forming dies, and component surfaces are smooth. Minimize cross-sectional abrupt changes and material buildup areas. Die head runner systems follow the melt flow direction smoothly. Repeatability error between mating die faces is ≤0.03mm. Welded surfaces and joints on the die head of extrusion molds should fit tightly. Reliable positioning should be ensured between the die plates. Local gaps ≤0.02mm.