Extruder Screen Pack
Yangzhou Xuancheng Filter Screen Co., Ltd was established in 2007, is a leading ISO 9001:2015 & ISO 14001 certified extruder screen pack factory in China.
As a premier extruder screen pack manufacturer, we specialize in high-quality stainless steel mesh filter discs, sintered wire mesh ,stainless steel wire mesh cloth, continuous belt screen, circular mesh screen, extruder screen packs, spot welding screen pack and automatic stainless steel screen belt. Based on our technical department’s rich expertise, we can also provide custom extruder screen pack designs for our customers.
Currently, 70% of our precision filters are exported to global markets including the US, UK, Germany, Japan, Korea and India. Our products are essential for high-performance filtration in industries such as Chemical Processing, Water Treatment, Food & Beverage, and Automotive Manufacturing.
What Is an Extruder Screen Pack?
Extruder screen pack is also called extruder screen packs, it is a vital component in the plastic extrusion process. It is a multi-layer wire mesh filter placed inside the extruderIt filters contaminants, it can help to protect extruder machinery and also help to improves product quality. Extruder screen packs are used in plastics related industries using raw or recycled polymers, they are not for use in the oil and gas industry
The layer configuration of micron rating can be customized to meet a material’s filtration, level pressure requirements or the characteristics of the filtered material as back pressure builds during the filtration process. Extruder screens are changed out as needed and typically not able to be cleaned or reused
Functions of an Extruder Screen Pack
- Filtration of impurities – prevents dirt and unmelted resin from reaching the die.
- Extruder Equipment protection – safeguards the extruder screw and die head.
- Uniform melt flow – critical for polymer filtration and smooth extrusion.
- Improved product quality – essential for high-performance plastic films and sheets.
In a word, extruder screen packs are used to remove impurities from raw or recycled molten polymers ,failure to remove these impurities canresult in faults in the plastic which lead to product failure or recall. So they are really import in the extruder industry.
Types of Extruder Screen Packs by Construction(with picture)
Single Mesh Screens
Basic filtration, typically used in low-demand applications.
Multi-Layer Screen Packs
Stacked mesh of varying sizes for advanced filtration.
Spot-Welded Packs
Durable screens held together by welding points.
Rim Packs
Reinforced with a metal rim for added stability.
Pleated Screens
Increased surface area for high-output extrusion.
Benefits of High-Quality Extruder Screen Packs
- Longer extruder life and lower downtime
- Higher efficiency in plastic extrusion
- Cost savings from reduced maintenance
- Consistent product output in polymer processing
How to Select the Right Screen Pack
We are extruder screen pack manufacturers, choosing the correct extruder screen pack depends on your extrusion process, materials, and production goals. The wrong choice can lead to pressure build-up, poor melt quality, or even equipment damage. Here are the main factors to consider:
For a better understanding , we also create a comparison chart (mesh size vs application) that could visually explain which screen pack to choose for different extrusion processes.
| Mesh Size | Filtration Level | Typical Use Case | Recommended Screen Pack Type |
|---|---|---|---|
| 20–40 mesh | Coarse | Removing large contaminants, basic recycling, low-precision extrusion | Single-layer screen pack |
| 40–80 mesh | Medium | General plastic extrusion (films, pipes, sheets), rubber processing | Multi-layer screen pack (coarse + fine) |
| 80–150 mesh | Fine | Precision extrusion (thin films, medical tubing, coatings) | Multi-layer screen pack with reinforced rim |
| 150–400 mesh | Extra fine | High-quality polymer filtration, specialty plastics, pharma & food extrusion | Stainless steel pleated screen pack or custom multilayer pack |
Single-layer screens work for basic filtration needs.
Multi-layer screen packs (2–5 layers) improve filtration and extend screen life.
Spot-welded or rimmed packs add durability and prevent screen shifting under high pressure.
- Pleated screen packs: increase surface area for high-output production
Stainless steel extruder screens are the industry standard due to corrosion resistance and high heat tolerance.
For specialized applications (chemicals, food, or pharma), confirm compliance with industry regulations. (e.g., FDA-grade stainless steel)
Always match your screen pack to your extrusion process.
Check pressure ratings to avoid screen breakage.
Ensure the pack can withstand your operating temperature.
Suggest to use reinforced screen packs for high-output machines.
Extruder screen packs must match the size and shape of your extruder. Common options include:
Round extruder screens
Oval screens
Custom shapes and diameters (for non-standard extruders)
Consider working with custom extruder screen pack suppliers if you need non-standard specifications.
Our Specification of Stainless Steel Extruder Screen Packs
● Material: stainless steel 304, 304L, 316, 316L, etc.
● Weave type: plain weave, twill weave, dutch weave
● Layer: single layer or multilayer
● Shape: circular, square,oval,rectangular,kidney and other special shapes.
Stainless Steel Material Composition (Chemical Content)
| Material Grade | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Carbon (C) | Key Advantage |
|---|---|---|---|---|---|
| SS 304 | 18% - 20% | 8% - 10.5% | - | ≤ 0.08% | Universal grade, high cost-performance. |
| SS 304L | 18% - 20% | 8% - 12% | - | ≤ 0.03% | Ideal for welded screen packs. |
| SS 316 | 16% - 18% | 10% - 14% | 2% - 3% | ≤ 0.08% | Superior resistance to corrosion & pitting. |
| SS 316L | 16% - 18% | 10% - 14% | 2% - 3% | ≤ 0.03% | Best for high-temp, acidic extrusion. |
Extruder Screen Mesh Specifications & Applications
| Filtration Grade | Mesh Count Options (SS 304/316L) | Typical Applications & Usage |
|---|---|---|
| Coarse Filtration | 4 mesh stainless steel screen | Recycled plastic granulation |
| 8 mesh stainless steel screen | ||
| 10 mesh stainless steel screen | ||
| 12 mesh stainless steel screen | ||
| 16 mesh stainless steel screen | ||
| 18 mesh stainless steel screen | ||
| Medium Filtration | 20 mesh stainless steel screen | Profile & Pipe extrusion, (PE, PP, PS) |
| 30 mesh stainless steel screen | ||
| 40 mesh stainless steel screen | ||
| 50 mesh stainless steel screen | ||
| 60 mesh stainless steel screen | ||
| 80 mesh stainless steel screen | ||
| Fine Filtration | 100 mesh stainless steel screen | Blown film extrusion |
| 120 mesh stainless steel screen | ||
| 150 mesh stainless steel screen | ||
| 180 mesh stainless steel screen | ||
| 200 mesh stainless steel screen | ||
| Ultra-Fine Filtration | 250 mesh stainless steel screen | Synthetic fiber spinning |
| 300 mesh stainless steel screen | ||
| 400 mesh stainless steel screen | ||
| 500 mesh stainless steel screen |
From this table, you should know How to Choose The Right Mesh for Your Extruder Screen Packs. We manufacture extruder screen packs using high-grade SS 304L and SS 316L to ensure maximum durability during high-pressure extrusion. Our wide range of mesh counts (from 4 to 500 mesh) allows for precise filtration for any polymer type. BTW, Our custom extruder screen packs are engineered to meet the highest precision requirements, often adhering to the ASTM E2016 industrial wire cloth standards to ensure consistent filtration and durability in high-pressure environments.”
Strict Quality Control on Extruder Screen Packs Production
At Xuancheng, we implement strict IQC, IPQC, and OQC protocols based on ISO 9001:2015 & ISO 14001 certification. From material grade verification to mesh precision testing, we ensure every extruder filter screen meets international industrial standards.
Strict IQC Inspection
Strict IPQC & OQC Inspection
Applications of Extruder Screen Packs
- Plastic extrusion filters for films, pipes, and sheets
- Rubber industry filtration
- Polymer recycling screen packs for reprocessed materials
- Food & chemical extrusion filters
FAQ on Extruder Screen Pack
What mesh size should i use?
The choice depends on your material and impurity levels.
Coarse mesh (20–40mesh): for recycling and basic extrusion.
Medium mesh (40–80mesh): for pipes, sheets, and films.
Fine mesh (80–150mesh): for thin films and coatings.
Extra fine mesh (150–500mesh): for high-precision or specialty applications.
We offer a full range from 4 mesh to 500 mesh to meet various filtration needs.
What are the types of extruder screens？
When it comes to the actual extruder screen being used to filter out contaminants, there are five varieties that have become standardized in the extrusion industry: disk, oval, wrap, candle pack, and belt.
In terms of common use, disc, oval, and wrap extruder screens are the most widely used solutions in the industry.
Can I use a custom extruder screen pack?
Yes. We are extruder screen pack supplier in China and can offer custom screen packs in different shapes, diameters, and mesh combinations to fit unique extrusion processes.
Why are stainless steel screen packs preferred?
Stainless steel (especially SS 304, 316, and 316L) offers superior heat resistance, high pressure durability, and excellent corrosion resistance. These materials ensure consistent melt purity and a longer lifespan in harsh extrusion environments.
How often should I change my extruder screen pack?
The frequency depends on the material being processed. For recycled plastics or heavily contaminated resins, screen packs may need replacement daily. For cleaner polymers, they may last for several production runs.
What are the application of extruder screen pack?
Extruder screen packs are essential in plastic extrusion, rubber processing, synthetic fibre manufacture, recycling operations, and food and pharmaceutical-grade polymer filtering.
What is a screen pack in extrusion?
A screen pack is a filter made of one or more layers of wire mesh placed inside an extruder. It removes impurities from molten plastic or polymer to ensure better melt quality and protect the extruder and die head.
Can you provide custom shapes and sizes?
Yes, as a professional manufacturer, we can produce custom extruder screen packs in various shapes, including circular, ring, oval, kidney and rectangular. We can also customize the edge with aluminum or stainless steel rims for added stability.
Just give us your design or samples.
What is the minimum order quantity?
Our MOQ is flexible depending on the specifications. For standard sizes, we support small trial orders. For custom designs, please contact our sales team for a specific quote.
What is the triditional material for extruder screen pack?
The triditional material for extruder screen pack is stainless steel wire and black steel wire.
What about the Cost of Extruder Screen Packs?
