Standard single-flight
Suitable for general HDPE extrusion applications.
- Conventional compression-type screw design
- Controlled melting and conveying
- Suitable for standard HDPE grades
- Stable material throughput
- Customized L/D and compression ratios
06 Screws & barrels
HDPE monofilament
screws & barrels.
We manufacture high-performance HDPE monofilament extruder screws and barrels designed for consistent polymer melting, homogeneous mixing, stable extrusion and precise output—engineered to the extrusion machine, polymer grade, processing conditions and application requirements.
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Five designs, five process problems solved
Manufacturing capability covers standard, barrier, mixing and application-specific screw geometries for HDPE monofilament extrusion lines, with attention to dimensional control, optimized flight geometry, wear resistance and service life.
High-compression
Where higher melting and compression performance is required.
- Higher compression ratio
- Improved melting capability
- Suitable for specific HDPE formulations
- Optimized feed, compression & metering sections
Barrier screw
Improves separation between unmelted polymer and melt during processing.
- Barrier flight geometry
- Improved melting efficiency, more uniform melt
- Reduced unmelted material
- Suitable for demanding extrusion applications
Mixing screw
Improves melt homogeneity via Maddock-type, pin, spiral or distributive mixing sections.
- Better melt homogenization
- Improved additive/masterbatch dispersion
- Reduced temperature variation
- More consistent extrusion
Customized / application-specific
Manufactured to the customer's machine specifications, polymer material, output requirement and extrusion process.
Screw geometry
Five zones, each doing a different job
Feed section
Efficiently receives and conveys HDPE material from the hopper into the extrusion barrel.
Compression / transition section
Progressively reduces channel depth to promote polymer compaction and melting.
Metering section
Provides controlled melt conveying and helps maintain consistent output and pressure.
Mixing section
Additional mixing elements can be incorporated where improved melt homogenization or additive dispersion is required.
Screw tip / nose
Manufactured according to the machine and die-head configuration, with suitable clearance and dimensional accuracy.
HDPE monofilament barrel
Five barrel configurations
Manufactured to provide accurate screw clearance, efficient heat transfer and reliable extrusion performance—to machine-manufacturer specification or existing screw dimensions.
Standard
- General HDPE extrusion
- Conventional internal bore
- Various L/D configurations
Water-cooled
- Controlled feed-zone temperature
- Cooling passages to design requirement
Air-cooled
- Controlled temperature management
- Designed to machine configuration
Bimetallic
- High wear resistance
- Abrasive or demanding polymer applications
- Extended operating life
Lined
- Replaceable / specialized internal liner
- Enhanced wear or corrosion resistance
Screw & barrel materials
Built from alloy steel, hardened where it matters
Screw materials
Nitro alloy steel
EN 41B / equivalent
40Cr
42CrMo4 / equivalent
Nitriding-grade steels
Barrel materials
Nitro alloy steel
Bimetallic alloy lining
Application-specific wear-resistant materials
Dashed items are the additional grades our content consultant suggested listing—confirm and certify with GMEW before publishing; solid items are already in GMEW's own literature.
Surface treatment & hardening
Selected for the polymer, not applied by default
In-house nitriding (up to 4m)
Ion / plasma nitriding
Hard chrome plating
Tungsten carbide coating
Bimetallic lining
Surface treatment is selected based on polymer characteristics, operating temperature, filler/additive content and expected service life. Appropriate surface hardening can improve wear resistance, dimensional stability and operating life.
Dashed items above are pending confirmation with GMEW.
Technical specifications
Made to order, built to a known baseline
| Parameter | Available options |
|---|---|
| Application | HDPE monofilament extrusion |
| Screw type | Standard / barrier / mixing / customized |
| Screw diameter | As per requirement |
| L/D ratio | As per machine requirement |
| Compression ratio | Application specific |
| Screw & barrel material | Nitro alloy steel (additional grades on request) |
| Surface treatment | Nitriding / as specified |
| Barrel type | Standard / water cooled / bimetallic / customized |
| Cooling | Water / air / as required |
| Manufacturing | CNC / precision machining |
| Inspection | Dimensional & surface inspection |
| Drawing | Customer drawing / sample / existing screw |
Reference plant models built on this screw & barrel range:
| Plant model | GMMF-45 | GMMF-65 | GMMF-75 | GMMF-90 | GMMF-100 |
|---|---|---|---|---|---|
| Screw dia | 45mm | 65mm | 75mm | 90mm | 100mm |
| Main drive | 20HP | 30HP | 40HP | 50HP | 60HP |
| Extrusion capacity | 50Kgs/Hr | 75Kgs/Hr | 100Kgs/Hr | 125Kgs/Hr | 150Kgs/Hr |
| Monofilament diameter | 0.07–3mm | 0.07–3mm | 0.07–3mm | 0.07–3mm | 0.07–3mm |
| Die | As per customer's requirements | ||||
| Heating load | 18KW | 24KW | 30KW | 40KW | 48KW |
| Connected load | 33KW | 36KW | 60KW | 77KW | 92KW |
Replacement & reverse-engineering
Send a drawing, a sample, or the worn part itself
We manufacture replacement HDPE monofilament extruder screws and barrels based on customer drawings, existing components, machine specifications or physical samples. Our engineering team evaluates the existing screw and barrel dimensions and develops a replacement with suitable geometry, material specification, surface treatment and dimensional tolerances.
Replacement screwsReplacement barrelsScrew modificationBarrel reconditioningReverse engineeringSample-based manufacturingDrawing-based manufacturingCustomized screw design
Applications
What our screws & barrels run
In production today
Mosquito net monofilamentFishing net monofilamentArtificial hair monofilament
Also possible—to confirm before publishing
Plastic bristlesBroom bristlesBrush filamentsFishing line / filamentRope & twine filamentsTechnical monofilamentsIndustrial filamentsAgricultural net / filament
Why choose GMEW
Specific reasons, not "best quality"
Precision manufacturing
Controlled dimensions and accurate screw geometry.
Application-specific design
Screw geometry optimized according to polymer grade, output and processing conditions.
Wear resistance
Materials and surface treatments selected according to operating conditions.
Customized manufacturing
Manufactured according to customer drawings, samples or machine specifications.
Consistent performance
Designed for stable conveying, melting and metering performance.
Quality inspection
Critical dimensions, bore diameter, screw flight dimensions and surface condition inspected before dispatch.
How to order
Send this, and the first quote will already be accurate
For quotation and manufacturing, send us:
- Machine manufacturer
- Machine model
- Screw diameter
- Screw L/D ratio
- Screw drawing
- Existing screw photographs
- Existing screw/barrel sample
- Polymer material — HDPE grade
- Required output
- Operating RPM
- Motor power
- Barrel configuration
- Surface treatment requirement
- Quantity required
Looking for a replacement HDPE monofilament extruder screw or barrel? Send us your drawing, dimensions or existing component. Our technical team will evaluate your requirement and provide a suitable manufacturing solution.
Start a project ↗