SCREWS & BARRELS · SINCE 2006
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APPLICATIONS
Different materials and products place different demands on a screw and barrel. Explore common extrusion and injection applications, then tell us about your machine so we can review a suitable configuration.
Plastic extrusion equipment · Photo: Cjp24 / CC BY-SA 3.0.
01
Resin, fillers and recycled content
02
Model, diameter and connection
03
Product, capacity and quality target
CORE APPLICATIONS
These are starting points, not fixed recipes. The installed machine and processed material determine the final screw design, steel and wear treatment.
01 / PVC PROCESSING
For rigid PVC water supply, drainage and conduit pipes. The screw and barrel must fit the extruder and support a stable melt through the pipe die.
Focus: plasticizing, melt pressure, output stability and wear.
RECOMMENDED SCREW & BARREL
02 / PVC PROCESSING
For window and door profiles, cable trunking and decorative sections. Formula, filler level and the existing extruder guide the matching work.
Focus: melt uniformity, surface finish and dimensional stability.
RECOMMENDED SCREW & BARREL
03 / FILLED COMPOUNDS
For decking, cladding, fencing and wood-plastic profiles. Fiber and filler can change feeding behavior and accelerate wear.
Focus: abrasion, mixing, steady conveying and finished surface.
RECOMMENDED SCREW & BARREL
04 / COMPOUNDING
For pelletizing, masterbatch, filler masterbatch and recycled material. Configuration is reviewed against dispersion, throughput and venting needs.
Focus: mixing, filler dispersion, devolatilization and wear.
RECOMMENDED SCREW & BARREL
05 / PIPE SYSTEMS
For drainage and cable conduit pipes. The extruder should deliver a consistent melt to the corrugator at the required line speed.
Focus: melt strength, dimension, forming stability and throughput.
RECOMMENDED SCREW & BARREL
06 / SHEET & FILM
For packaging film, thermoforming sheet and protective material. Screw design is reviewed with material, die and thickness requirements.
Focus: flow stability, gauge control and surface quality.
RECOMMENDED SCREW & BARREL
YINGDA supplies screw and barrel components for cable insulation and protective jacketing. Share your extruder model, the insulation or sheath material, and your existing drawing or dimensions so we can review a suitable configuration. The product family is selected according to the installed machine and processing requirements.
RELATED PRODUCTS & SERVICES
Extruder Screw & Barrel →
Parallel Twin Screw & Barrel for Compounding →
Custom Screw & Barrel Design and OEM →
PROCESS CONTEXT
Send the product you make and the issue you see on the line. That gives our team a useful starting point even when the original drawing is missing.
Application photo credits: PVC window profile — Kozuch, CC BY-SA 3.0; blown film — Maarten Gielen, CC BY-SA 4.0. Photographs shown as application examples; displayed with layout cropping.
Review polymer, pipe size and melt delivery.
Review filler, wear, mixing and output.
Review plasticizing stability and component fit.
MORE APPLICATIONS
Rigid PVC board and sheet lines.
RECOMMENDED SCREW & BARREL
View Conical Twin Screw & Barrel →
Conduit and cable pipe extrusion.
RECOMMENDED SCREW & BARREL
View Conical Twin Screw & Barrel →
Foamed plastic sheet applications.
RECOMMENDED SCREW & BARREL
Discuss Foam Screw Design →
High-filler and reinforced compounds.
RECOMMENDED SCREW & BARREL
View Parallel Twin Screw & Barrel →
Injection screw and barrel units.
RECOMMENDED SCREW & BARREL
View Injection Molding Screw & Barrel →
SELECTION REFERENCE
Use this table to find the product types commonly associated with your process. Final screw design, steel and surface treatment depend on the resin, machine model and operating conditions.
APPLICATION
RECOMMENDED SCREW & BARREL — VIEW PRODUCT
This is a selection reference. We will confirm compatibility against the installed machine, drawings or measured dimensions before manufacturing.
APPLICATION QUESTIONS
A conical twin screw is common for many rigid PVC profile lines. The actual replacement must match the installed machine, dimensions and formula.
Share the polymer, wood or mineral filler level, output target and current wear pattern. The design and surface treatment are reviewed against these conditions.
Parallel twin screw systems are common in many compounding lines. Screw configuration, barrel wear protection and venting depend on the material and machine.
Yes. Start with the machine nameplate, clear photos, worn parts and measurements you have. We will identify the critical missing dimensions before finalizing a specification.
Tell us the finished product, processed resin, machine model, screw diameter if known, current issue and any drawings, photos or samples.
READY TO DISCUSS YOUR LINE?
You do not need a complete technical file for the first conversation.
WORK WITH YINGDA
Tell us what you make, the resin you process and the machine you run. We will review the screw and barrel direction, material and wear conditions, then discuss a specification suited to your line.
✓ Direct factory communication
✓ Specifications agreed before production