top of page
Search

112mm Nissei Screw - Call Now - 770-417-6983

  • megan15067
  • Mar 4
  • 3 min read

Injection molding machines require precision components to maintain performance and reliability. One critical part is the screw, which directly affects the quality and efficiency of the molding process. The 112mm Nissei screw with an overall length of 94.06 inches is a key component for large-tonnage Nissei machines, especially the FN-series like the FN-5000-50A. This post explores the features, applications, and benefits of this screw, helping you understand why it’s essential for your injection molding operations.


Close-up view of a 112mm Nissei screw used in large injection molding machines
112mm Nissei screw with overall length 94.06 inches

What Makes the 112mm Nissei Screw Special


The 112mm screw diameter is designed for high-capacity injection molding machines, typically those in the 5000-ton class. The overall length of 94.06 inches (approximately 2390mm) allows for a large shot volume, which is necessary for molding large or complex parts. This screw size is commonly found in machines like the Nissei FN-5000-50A, part of the FN or FS series known for their strength and precision.

Feed Screw
Buy Now


Key features include:


  • Diameter: 112 mm, suitable for large shot capacity

  • Overall Length: 94.06 inches, providing extended plasticizing length

  • Screw Tip: Often a 3-piece free-flow (FF) tip with trapezoidal threads (e.g., TR65 x 3.0mm LH)

  • Application: Designed for high injection pressures and large volume molding


This screw is engineered to handle demanding industrial applications, such as automotive parts manufacturing and heavy-duty plastic components.


Applications of the 112mm Nissei Screw


Large injection molding machines equipped with this screw are used in industries where precision and volume are critical. Some common applications include:


  • Automotive Industry: Manufacturing large plastic parts like bumpers, dashboards, and interior panels that require consistent quality and strength.

  • Industrial Components: Producing durable plastic parts for machinery, appliances, and equipment housings.

  • Consumer Goods: Large containers, crates, and other bulky plastic products that need high shot capacity.


The screw’s design supports high injection pressures, ensuring the molten plastic fills molds completely and evenly. This reduces defects and improves the overall quality of molded parts.


Benefits of Using a 112mm Nissei Screw


Choosing the right screw for your injection molding machine impacts productivity and product quality. The 112mm Nissei screw offers several advantages:


  • High Shot Capacity: The long screw length and large diameter allow for bigger shot sizes, reducing cycle times for large parts.

  • Improved Plasticizing Efficiency: The screw’s design promotes better melting and mixing of plastic material, resulting in consistent melt quality.

  • Durability: Made from high-grade materials, this screw withstands the wear and tear of continuous operation in demanding environments.

  • Compatibility: Specifically manufactured for Nissei FN-series machines, ensuring a perfect fit and optimal performance.


Using the correct screw size and type helps maintain machine efficiency and reduces downtime caused by screw wear or failure.


How to Choose the Right Screw for Your Nissei Machine


Selecting the right screw involves considering several factors:


  • Machine Model: The 112mm screw fits large Nissei machines like the FN-5000-50A. Confirm your machine’s specifications before ordering.

  • Material Type: Different plastics require different screw designs. The 3-piece free-flow tip is ideal for materials needing smooth flow and minimal shear.

  • Shot Size Requirements: Match the screw length and diameter to your production needs to avoid under or over-sizing.

  • Injection Pressure: Ensure the screw can handle the pressures your molding process demands.


Consulting with experts or suppliers like Complete Plastic can help you find the best screw for your specific application.


Maintenance Tips for Your Nissei Screw


Proper maintenance extends the life of your screw and keeps your machine running smoothly:


  • Regular Inspection: Check for wear, corrosion, or damage on the screw and tip.

  • Cleaning: Remove any residue or buildup to prevent contamination and maintain melt quality.

  • Lubrication: Use recommended lubricants to reduce friction and wear.

  • Replacement Schedule: Follow manufacturer guidelines for screw replacement to avoid unexpected failures.


Routine care minimizes downtime and ensures consistent molding quality.


Where to Buy a 112mm Nissei Screw


If you need a replacement or spare screw for your Nissei FN-5000-50A or similar machine, contact Complete Plastic. They specialize in supplying high-quality injection molding screws tailored to large-tonnage machines.


Their team can assist with selecting the right screw and provide expert advice on installation and maintenance.


 
 
 

Comments

bottom of page