Lesun | Colombia Bogotá International Plastics and Rubber Expo

SME elements introduce shallow reverse grooves on conveying flights, generating controlled melt backflow and improving distributive mixing.

Best suited for:

• Melt stage mixing

• General distributive mixing

• Applications requiring good self-cleaning

CKE elements combine conveying and mixing functions, providing gentle material exchange with low shear and reduced energy consumption.

Best suited for:

• Heat-sensitive materials

• Low-shear compounding processes

• Applications requiring stable conveying with mild mixing

Primary feeding barrel introducing raw materials into the extruder under controlled fill and stable conveying conditions.

Best suited for:

• Main material feeding

• Pellet and powder input

• Stable process start

Stretching elements, also called S-type elements, improve material exchange and distributive mixing in partially melted zones.

Best suited for:

• Semi-plasticized material zones

• Improved dispersion

• Gentle mixing processes

Forward kneading elements provide a balance between conveying and mixing, with adjustable shear depending on stagger angle and disc width.

Best suited for:

• Plastication zones

• General compounding

• Controlled mixing processes

TME elements use intermeshing toothed discs to split and recombine melt flow, achieving efficient distributive mixing without conveying.

Best suited for:

• Melt mixing zones

• Fiber-reinforced materials

• High homogeneity requirements