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Pelletizing Systems for Every Need

Explore our range, featuring underwater pelleting systems, air cooling strand pelletizing system, water-cooling strand pelleting systems, air-cooling die face pelleting systems, underwater strand pelleting systems, and water ring pelleting systems—tailored for efficient and precise pellet production across diverse applications.

Pelletizing System Product Display

Underwater Pelletizing System2

Underwater Pelletizing System

Underwater pelletizing is effective for various polymers, particularly for elastomers like TPU and TPV. GS Mach offers complete production lines, including TPU/TPV lines, with underwater pelletizing systems.
Air Cooling Strand Pelletizing System

Air Cooling Strand Pelletizing System

GS Mach excels in biodegradable plastics with complete extrusion lines. Our offerings include full solutions for PLA resins and turnkey options for water-soluble packaging bags.
Water Cooling Strand Pelletizing System1

Water Cooling Strand Pelletizing System

Ideal for compounding most polymers, this system boasts simplicity, ease of operation, and convenient maintenance. It has a low operator threshold and comprises a strand die, water batch, air knife, strand pelletizer, and vibratory classifier.
Air Cooling Die Face Pelletizing System

Air Cooling Die Face Pelletizing System

The system, with a kneader/banbury two-stage granulator, is suitable for various formulations like PVC, LLDPE, highly filled masterbatches, biodegradable masterbatches, HFFR, WPC, etc. It offers ring and centrifuge versions based on raw material characteristics, preventing water contact for specific materials.
Underwater Strand Pelletizing System1

Underwater Strand Pelletizing System

Ideal for frequent filter changes in plastic recycling, this system ensures the automatic entry of the rope into the pelletizer, even in cases of rope breakage during filter replacements. This minimizes waste in the production process.
Water Ring Pelletizing System1

Water Ring Pelletizing System

Suitable for recipes like PE, PS, EVA, TPU, etc., this system produces nice, free-flowing pellets with a shorter production line. Components include a water ring pelletizer, water circulating system, centrifugal dewater, and vibrating classifier.

FAQ About Pelletizing System

Production cycle: 30-45 working days

Shipping lead time: 7-30 days depending on the distance to each country

Our machines can be customised in a range of colours, nameplates, sizes and more!

Please note that our machines are customized to your specifications, and as such, they are non-returnable. The warranty for these machines is one year, excluding damages caused by human factors.

Plastic pellets are typically produced from various types of raw materials, which are polymers derived from natural or synthetic sources. The most common types of materials that can be processed into plastic pellets include:


1. Polyethylene (PE):

   - High-Density Polyethylene (HDPE)

   - Low-Density Polyethylene (LDPE)

   - Linear Low-Density Polyethylene (LLDPE)

2. Polypropylene (PP):

   - Homopolymer Polypropylene

   - Copolymer Polypropylene

3. Polyvinyl Chloride (PVC):

   - Rigid PVC

   - Flexible PVC

4. Polystyrene (PS):

   - General-Purpose Polystyrene (GPPS)

   - High-Impact Polystyrene (HIPS)

5. Polyethylene Terephthalate (PET):

   - Used commonly in the production of beverage bottles and packaging.

6. Polyurethane (PU):

   - Thermoplastic polyurethane (TPU) is a common type used for flexible applications.

7. Polyamide (Nylon):

   - Nylon 6, Nylon 66, and other variations.

8. Acrylonitrile Butadiene Styrene (ABS):

   - Commonly used for engineering-grade applications.

9. Polycarbonate (PC):

   - Known for its high impact resistance and transparency.

10. Polyethylene Oxide (PEO):

    - Used in various industrial applications.

11. Polyethylene Terephthalate Glycol (PETG):

    - A variant of PET with enhanced clarity and impact resistance.

12. Bioplastics:

    - Derived from renewable resources, such as corn starch, sugarcane, or other plant-based materials.

13. Polyvinylidene Chloride (PVDC):

    - Often used as a barrier coating in food packaging.

14. Polymethyl Methacrylate (PMMA):

    - Known by the brand name acrylic, it is used in products like acrylic glass.


These materials can be processed into plastic pellets through various methods, such as extrusion, injection molding, or granulation. The choice of material depends on the desired properties of the final product, such as flexibility, strength, transparency, or chemical resistance. Additionally, recycling processes may involve the conversion of post-consumer or post-industrial plastic waste into pellets for reuse in manufacturing.

The size of plastic pellets that can be produced depends on the specific manufacturing process and equipment used. Plastic pellets come in a range of sizes, and manufacturers can tailor the size according to their specific requirements. 

1. Standard Sizes:

   - Small Pellets: Typically in the range of 1 to 3 millimeters in diameter.

   - Medium Pellets: Ranging from 3 to 5 millimeters in diameter.

   - Large Pellets: Above 5 millimeters in diameter.

2. Custom Sizes:

   - Manufacturers can produce plastic pellets in custom sizes based on the specific needs of the application.

3. Micropellets:

   - Some applications require very small pellets known as micropellets, often less than 1 millimeter in diameter.

4. Macro Pellets:

   - Larger pellets, sometimes exceeding 10 millimeters in diameter, are used in certain applications.

A complete plastic pelletizing system typically consists of several interconnected systems and components to efficiently and effectively produce plastic pellets. The specific configuration may vary depending on the scale of production, the type of plastic material being processed, and the desired end product. However, a basic plastic pelletizing system often includes the following key components:


1. Feeding System:

   - Raw plastic material is introduced into the system through a feeding mechanism. This can involve conveying systems or hoppers that provide a steady supply of material to the processing equipment.


2. Drying System (Optional):

   - In some cases, plastic pellets are produced from dried plastic resin. A drying system may be included to remove any moisture from the raw material, as moisture can negatively affect the quality of the pellets.


3. Extrusion System:

   - The extrusion system melts the plastic material and forms it into a continuous shape, such as a rod or strand. This process is critical for creating the initial form before the material is cut into pellets.


4. Pelletizing System:

   - The extruded plastic is cut or pelletized into the desired pellet size. This can involve pelletizing equipment such as pelletizers, pellet cutting machines, or pellet mills. The type of equipment used depends on the specific requirements of the application.


5. Cooling System:

   - The newly formed plastic pellets are often cooled to solidify them and ensure they maintain their shape. Cooling systems may use air, water, or a combination of both.


6. Separation and Classification System:

   - This system separates the plastic pellets from any fines or dust produced during the pelletizing process. It may include vibrating screens or air classifiers.


7. Conveying and Storage System:

   - Conveyors are used to transport the plastic pellets from one stage of the process to another. Storage systems may be employed to hold the finished pellets before packaging or further processing.


8. Packaging System:

   - The final plastic pellets are packaged for distribution. Packaging systems can include bagging machines, bulk packaging equipment, or other packaging solutions.


9. Control and Monitoring System:

   - An integrated control system is used to monitor and control various parameters of the pelletizing process, ensuring consistency and quality.


10. Safety Systems:

    - Safety features and systems are implemented to ensure the protection of personnel and equipment during operation.


The number and complexity of these systems may vary based on factors such as the scale of production, the type of plastic material, and the specific requirements of the manufacturing process. Large-scale industrial operations may have more sophisticated and automated systems, while smaller operations may have simpler setups.

Ring die and flat die are two common types of designs used in pellet mill machines, particularly in the context of biomass pelletization and feed pellet production. These designs refer to the shape and structure of the pelletizing components within the pellet mill. Here are the key differences between ring die and flat die pellet mills:


1. Shape and Structure:

   - Ring Die:

     - A ring die pellet mill has a large, circular ring-shaped die that is mounted on a rotating shaft.

     - The rollers, or press rolls, move across the inner surface of the ring die.

     - Material is forced through the die holes to form cylindrical pellets.

   - Flat Die:

     - A flat die pellet mill has a flat, horizontal die that is stationary during operation.

     - The rollers move vertically or horizontally across the flat die to compress and extrude the material into pellets.


2. Pellet Formation:

   - Ring Die:

     - Material is fed centrally into the die, and the rollers compress and push the material through the die holes, forming pellets as it exits.

     - Suitable for large-scale pellet production.

   - Flat Die:

     - Material is evenly distributed across the flat surface of the die, and the rollers press the material into the die to form pellets.

     - Generally used for small to medium-scale pellet production.


3. Efficiency:

   - Ring Die:

     - Typically more efficient for large-scale production due to higher throughput.

     - Requires more power.

   - Flat Die:

     - Suited for smaller production volumes.

     - Consumes less power.


4. Cost:

   - Ring Die:

     - Generally, ring die pellet mills are more expensive to manufacture and maintain.

     - Higher initial investment cost.

   - Flat Die:

     - Flat die pellet mills are often more cost-effective for small to medium-scale operations.

     - Lower initial investment cost.


5. Maintenance:

   - Ring Die:

     - The complex design of ring die pellet mills may require more maintenance.

     - Replacement of the ring die is a more involved process.

   - Flat Die:

     - Simpler design results in easier maintenance.

     - The flat die can be replaced more easily.


6. Applications:

   - Ring Die:

     - Commonly used in large-scale industrial settings for biomass pellet production, animal feed, and other applications.

   - Flat Die:

     - Suited for small to medium-scale applications, such as home pellet mills, small farms, and small-scale feed production.


Ultimately, the choice between ring die and flat die pellet mills depends on factors like production scale, budget, and the specific requirements of the application. Large-scale industrial operations often opt for ring die pellet mills, while small to medium-scale operations may find flat die pellet mills more suitable.

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* Friendly reminder:
If you haven’t received our reply email within 1-2 hours, we suggest checking your “spam” or “junk” folder.


For smoother and more efficient communication, and to ensure that you receive our messages promptly, we recommend reaching out to us directly through WhatsApp or our designated Email Address. We will respond to your message as soon as possible. Typically, you can expect to receive our reply within 1-2 hours.