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60mm Negri Bossi Tip Assembly - Call Now - 770-417-6983

  • Heat Tech
  • Feb 23
  • 3 min read

www.completeplastics.com / sales@completeplastics.com Injection molding machines rely heavily on precise components to ensure smooth operation and high-quality output. One such critical component is the 60mm Negri Bossi tip assembly. Designed for machines with a 60mm screw diameter, this tip assembly plays a vital role in the injection molding process, especially in mid-to-large tonnage machines. This post explores the features, compatible machine models, and replacement options for the 60mm Negri Bossi tip assembly, helping you make informed decisions for your molding needs.


60mm Negri Bossi Tip Assembly

What Is a 60mm Negri Bossi Tip Assembly?


The 60mm Negri Bossi tip assembly is a component designed to fit injection molding machines that use a 60mm screw diameter. The screw diameter directly influences the shot capacity and the volume of material injected during molding. A 60mm screw is common in machines that handle medium to large shot volumes, making this tip assembly essential for efficient production.


The tip assembly typically features a 30-degree tip angle, which helps control the flow of molten plastic into the mold. This angle is optimized to reduce backflow and improve the precision of the injection process.


Compatible Negri Bossi Machine Models


The 60mm tip assembly is compatible with several Negri Bossi machine series, both legacy and modern. Understanding which machines use this size helps ensure you select the right part for your equipment.


NB Series


  • Negri Bossi NB 250 and NB 300

These models frequently use 60mm screw diameters to match their shot capacities. The NB series is known for reliable performance in mid-range tonnage applications.


NOVA Series


  • Servo-hydraulic NOVA sT machines

These modern machines, ranging from 180 to 500 tonnes, often come with a 60mm screw as a standard or optional large screw size. This allows for higher shot volumes and improved production flexibility.


Vesta & EOS Series


  • Vesta VE and EOS series

Older all-electric or hybrid models like the VE300-1700 often utilize 60mm tip assemblies in their higher-tonnage configurations. These machines benefit from the durability and precision of the 60mm tip.


Vector Series


  • Vector sT machines (650–1300 tonnes)

While these larger machines often use bigger screw diameters, they can accommodate 60mm tip assemblies for specific applications or configurations.


Replacement Parts and Specifications


When it comes to replacement parts, the 60mm Negri Bossi tip assembly is available in several designs and materials to suit different molding needs.


Standard Designs


  • 3-piece free-flow

This design allows for smooth material flow and easy maintenance.

  • 4-piece assembly

Offers enhanced sealing and durability for demanding applications.

  • Ball-check configuration

Used to prevent backflow and improve injection accuracy.


Materials


  • H-13 tool steel

Commonly used for general-purpose applications due to its toughness and heat resistance.

  • CPM 9V steel

Chosen for high-wear applications where extended tip life is critical.


Selecting the right design and material depends on your specific molding requirements, including the type of plastic, cycle times, and production volume.


Why Choose a 60mm Tip Assembly?


Using the correct tip assembly size and design directly impacts the quality and efficiency of your injection molding process. A 60mm tip assembly offers several advantages:


  • Improved shot capacity for mid-to-large tonnage machines.

  • Better flow control with the 30-degree tip angle.

  • Compatibility with a wide range of Negri Bossi machines.

  • Durability with options for high-wear materials.

  • Ease of maintenance with modular designs.


These benefits translate into reduced downtime, consistent product quality, and cost savings over time.


How to Order and Get Support


If you need a 60mm Negri Bossi tip assembly, you can contact Complete Plastics for expert assistance and reliable parts.


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Their team can help you identify the right tip assembly for your machine model and application, ensuring you get the best fit and performance.


Tips for Maintaining Your Tip Assembly


Proper maintenance extends the life of your tip assembly and keeps your injection molding machine running smoothly:


  • Regularly inspect the tip for wear or damage.

  • Clean the tip assembly to prevent material buildup.

  • Replace seals and ball-check components as needed.

  • Use the correct torque settings during installation.

  • Monitor cycle times and adjust parameters to reduce stress on the tip.


Following these practices helps avoid costly downtime and maintains consistent molding quality.



 
 
 

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