Understanding the Key Specifications and Applications of the 32mm Nissei Screw

www.completeplastics.com, sales@completeplastics.com, 770-417-6983. Plastic injection molding machines rely heavily on precision components to deliver consistent, high-quality results. One such critical component is the screw, which plays a vital role in melting, mixing, and injecting plastic material into molds. Among the various screw sizes used in Nissei machines, the 32mm diameter screw with an overall length of 35.06 inches stands out for its versatility and performance. This post explores the key specifications of this screw and its applications across different Nissei injection molding machine models.

Close-up of 32mm Nissei screw, showing thread details and polished surface

Understanding the Key Specifications and Applications of the 32mm Nissei Screw

Understanding the technical details of the 32mm Nissei screw helps in selecting the right component for specific molding needs. Here are the main specifications:

• Diameter: 32 millimeters

• Overall Length (OAL): 35.06 inches (approximately 890.5 millimeters)

• Length-to-Diameter (L/D) Ratio: 21:1

• Compatible Screw Tip: Typically paired with a 32mm assembly screw tip featuring an overall length of 4.72 inches and TR18 x 2.0mm left-hand threads

  
  

Understanding the Key Specifications and Applications of the 32mm Nissei Screw - The L/D ratio of 21:1 indicates a relatively long screw compared to its diameter, which supports efficient plasticizing and mixing of the resin. The screw tip’s thread specifications ensure secure attachment and optimal performance during injection.

Applications in Nissei Injection Molding Machines

This 32mm screw size is compatible with several Nissei plastic injection molding machine models, each designed for different production scales and requirements:

• FN80-12A: This model is the primary user of the 32mm screw. It is a reliable machine suited for medium-sized injection molding tasks, benefiting from the screw’s balance of length and diameter for consistent melt quality.

  
  

• FNX80III-12A: A hybrid version of the 89-ton machine, this model uses the same 32mm screw diameter. It combines hydraulic and electric components to enhance injection performance, making the screw’s specifications critical for maintaining high output quality.

  
  

• FN140-18AD: Although this 140-ton machine usually employs a 40mm screw, it can be equipped with the 32mm screw as a secondary high-pressure option. This flexibility allows operators to switch screws based on the molding requirements, such as when processing materials that need higher injection pressure.

  
  

• NEX80V: An all-electric model, the NEX80V frequently uses the 32mm screw for its "A" specification injection capacity. The electric drive system benefits from the screw’s precise dimensions to deliver consistent injection speeds and pressures.

  
  

• NEX110-9E: This 121-ton electric machine has been documented using the 32mm screw diameter in various industrial listings. Its electric operation demands screws that can handle precise control, which this screw size supports well.

  
  

Why the 32mm Screw Matters in Injection Molding

The screw in an injection molding machine is responsible for melting the plastic pellets and pushing the molten material into the mold cavity. The 32mm screw offers several advantages:

• Efficient Melting: The 21:1 L/D ratio provides enough length for thorough melting and mixing of the resin, reducing the risk of unmelted particles or inconsistent melt quality.

  
  

• Versatility: Compatible with multiple Nissei models, this screw size supports a range of production volumes and material types, from standard thermoplastics to engineering resins.

  
  

• Pressure Handling: The screw’s design allows it to maintain high injection pressures, especially when used as a secondary option in larger machines like the FN140-18AD.

  
  

• Durability: Made from high-quality materials and designed with precise threading, the screw tip assembly ensures long service life and reliable performance.

  
  

Selecting the Right Screw for Your Machine

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Choosing the correct screw size and specifications is crucial for maintaining machine efficiency and product quality. When considering the 32mm Nissei screw, keep these factors in mind:

• Machine Compatibility: Verify that your Nissei model supports the 32mm screw, especially if you plan to use it as a secondary option.

  
  

• Material Type: Different plastics require different melting and injection conditions. The 32mm screw’s length and diameter make it suitable for a broad range of materials but confirm compatibility with your resin.

  
  

• Production Volume: The screw’s size and L/D ratio influence cycle times and throughput. Ensure the screw matches your production speed requirements.

  
  

• Maintenance and Replacement: Regular inspection of the screw and tip assembly helps avoid downtime. Using genuine parts from trusted suppliers ensures optimal fit and function.

  
  

Where to Source the 32mm Nissei Screw

For those needing replacement screws or upgrades, reputable suppliers like Complete Plastics provide high-quality 32mm Nissei screws. They offer detailed product information and customer support to help you select the right component. Contacting them via their website or phone can streamline the ordering process and ensure you receive parts that meet your machine’s specifications.