High-Efficiency Twin Extruder Screw Spare Parts Double Flighted Screw Elements

Product Description

Double-fighted screw elements, also known as double screws, are widely used in co-rotating twin-screw compounding extruders. Their cross section is olive-shaped. Large-lead double-fighted screw elements are used in the feeding and exhaust sections, while small-lead ones pressurize or space kneading blocks for better material melting and properties. It is widely applied in industries such as the plastic industry, the food industry, the pharmaceutical industry, and the manufacturing industry.

Specification

Product Name	Double Flighted Screw Element
Screw Design	Double Screw
Hardness	58-60HRC
Brand Name	Nanxiang
Surface Treatment	Polishing/Sand Blasting
Place of Origin	Sichuan, China
Application	Twin Screw Extruder
Material	38CrMoALA / W6Mo5Cr4V2 / HIP
Applicable Industries	Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Farms, Home Use, Retail, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops

Extruder Screw Materials

• The nitrided steel, 38CrMoAlA or 34CrAlNi7 (72h two-stage gas nitriding);
• The high-speed tool steel, W6Mo5Cr4V2 (vacuum quenching);
• The mold steel, 1.2379 or SKD11 or K110 (quenching + tempering);
• The bimetal composite rods (inside tough, outside hard or corrosion resistant);
• Other special materials such as Hastelloy, W-C, nickel-based alloy, etc.

The list of nomal screw elements

Packaging Details

1. Paint anti-rust oil;

2. Wrapped by the stretch film or bubble film;

3. Put it in the container or wooden box.

FAQ

Q: Are your screw elements suitable for all twin - extruders?
A: They fit many common twin - extruder models. But different brands might have unique screw specs. Before buying, share your extruder's model number and screw dimensions. Our team can check compatibility and offer custom solutions if required.

Q: What materials are typically used for manufacturing screw elements?
A: Screw elements are usually made from high-strength steel alloys, such as tool steel or corrosion-resistant alloys, to withstand the high shear forces and temperature variations encountered in extrusion processes. Some elements may also be coated with wear-resistant materials to extend their life.

Q: What should I do if I notice reduced performance in my screw elements?
A: If you notice performance issues such as reduced throughput, inconsistent mixing, or material blockages, it's crucial to inspect the screw elements for wear and tear. It may also be necessary to clean or replace the elements if they're damaged. Regular maintenance checks can help identify potential issues early on.