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25MM Arburg Screw - Contact us at sales@completeplastics.com

  • Heat Tech
  • Jan 6
  • 3 min read

Call us at 770-417-6983 or find our website at www.completeplastics.com. When it comes to precision and reliability in injection molding, the screw plays a crucial role. The 25MM Arburg screw stands out as a key component for several Arburg machine models, offering consistent performance and durability. Whether you operate an Arburg 320S-500-150 or compatible models like the Allrounder 270S, 221K, or 370C series, understanding the specifications and benefits of this screw can help you maintain optimal production quality.


Close-up view of a 25MM Arburg screw showing detailed sections
Detailed view of 25MM Arburg screw with drive, feed, transition, and meter sections

Key Specifications of the 25MM Arburg Screw


The 25MM Arburg screw measures a total length of 28.75 inches. It is divided into four main sections, each designed to perform a specific function during the injection molding process:


  • Drive section: 6.65 inches

  • Feed section: 11.04 inches

  • Transition section: 5.53 inches

  • Meter section: 5.53 inches


Each section contributes to the efficient melting, mixing, and injection of plastic material. The drive section powers the screw rotation, the feed section moves raw material forward, the transition section compresses and melts the plastic, and the meter section ensures consistent material flow into the mold.


Compatible Arburg Models


This 25MM screw is specifically designed for the Arburg 320S-500-150 model, a 55-ton injection molding machine known for its precision and versatility. Additionally, it fits several other Arburg machines that use 25mm screws, including:


  • Arburg Allrounder 270S series

  • Arburg 221K series

  • Arburg 370C series


Knowing which models are compatible helps operators source the right screw replacement without risking machine downtime or production issues.


Why Choose the 25MM Arburg Screw?


Choosing the right screw for your injection molding machine affects product quality, cycle times, and maintenance costs. The 25MM Arburg screw offers several advantages:


  • Consistent melt quality: The carefully designed sections ensure uniform melting and mixing of plastic pellets.

  • Durability: Made from high-quality materials, this screw withstands wear and tear from abrasive materials.

  • Improved cycle times: Efficient material flow reduces injection time, increasing productivity.

  • Easy replacement: Standardized dimensions make it straightforward to swap out old or damaged screws.


Operators who maintain their machines with the correct screw size and type often see fewer defects and longer machine life.


How to Identify When You Need a New Screw


Injection molding screws wear down over time due to friction, heat, and material abrasiveness. Signs that your 25MM Arburg screw may need replacement include:


  • Increased cycle times or inconsistent injection pressure

  • Visible wear or scoring on the screw surface

  • Poor melt quality or inconsistent part dimensions

  • Frequent machine downtime for maintenance


Regular inspection and timely replacement prevent costly production delays and maintain product quality.


Ordering Your 25MM Arburg Screw


If you need a replacement or spare 25MM Arburg screw, you can contact Complete Plastics for expert assistance. They offer genuine parts compatible with your Arburg machines and provide support to ensure you get the right component.


Their team can help you confirm compatibility, provide pricing, and arrange fast shipping to minimize your downtime.

Feed Screw
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Tips for Maintaining Your Arburg Screw


To extend the life of your 25MM Arburg screw and keep your machine running smoothly, consider these maintenance tips:


  • Clean the screw regularly to remove residue and prevent buildup.

  • Use the correct processing parameters to avoid overheating or excessive wear.

  • Inspect the screw surface for damage during routine maintenance.

  • Replace worn screws promptly to avoid damage to other machine components.


Proper maintenance not only saves money but also improves the consistency of your molded parts.


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