Understanding the Role of an 80mm Screw in Nissei Plastic Injection Molding Machines
- Heat Tech
- Mar 1
- 3 min read
www.completeplastics.com, sales@completeplastics.com, 770-417-6983. Plastic injection molding machines rely on precise components to deliver consistent, high-quality parts. Among these components, the screw plays a crucial role in melting, mixing, and injecting plastic material into molds. For Nissei machines, the "80" often refers to either the screw diameter of 80mm or an 80-ton clamping force. This post explores what an 80mm screw means for Nissei machines, the types of machines that use it, and compatible components to help you make informed decisions for your molding operations.
Close-up view of an 80mm screw used in Nissei plastic injection molding machine
Understanding the Role of an 80mm Screw in Nissei Plastic Injection Molding Machines
In the context of Nissei plastic injection molding machines, the number "80" can indicate two different things:
Screw Diameter: An 80mm screw diameter is a large size used in machines designed for high-capacity shots.
Clamping Force: An 80-ton clamping force refers to the machine's ability to hold the mold closed during injection.
Understanding the Role of an 80mm Screw in Nissei Plastic Injection Molding Machines - Understanding which "80" applies is essential because it affects machine size, shot capacity, and suitable applications.
Machines That Use an 80mm Screw Diameter
An 80mm screw is typical in large-tonnage machines, usually ranging from 400 to 500 tons of clamping force. These machines handle large shot sizes and are ideal for heavy-duty industrial molding.
Examples of Nissei Machines with 80mm Screws
FN Series
The Nissei FN7000 is a 400-ton horizontal hydraulic machine that uses an 80mm screw. It can deliver a shot size of approximately 42.9 ounces, making it suitable for medium to large parts.
FNX Series (Hybrid)
The FNX460III-160A is a 501-ton hybrid machine combining hydraulic power with electric precision. It features an 80mm screw capable of a 54-ounce shot size, ideal for high-volume production with energy efficiency.
FV Series
This series supports 80mm screws and barrels designed for heavy-duty molding tasks. The FV machines are built for industrial applications requiring large shot sizes and robust performance.
These machines are often found in industries such as automotive, packaging, and consumer goods, where large parts or high volumes are common.
Machines with 80-Ton Clamping Force
When "80" refers to clamping force, it indicates smaller machines designed for lighter molding tasks. Nissei offers several models in this range, including:
NEX Series (All-Electric)
The NEX80V is an all-electric machine with an 80-ton clamping force. It offers precise control, energy savings, and is suitable for small to medium parts requiring clean molding environments.
FNX Series (Hybrid)
The FNX80 series combines hydraulic and electric features at the 80-ton force level. These machines provide a balance of speed and precision for various molding needs.
FN Series (Hydraulic)
Legacy models like the FN1000 are 80-ton horizontal hydraulic machines widely used for general-purpose molding.
These machines are popular for producing smaller parts such as medical components, electronics housings, and consumer products.
Compatible Screw Components for 80mm Screws
Nissei uses standardized screw designs across many of its machine series. This standardization means that replacement screws and tip assemblies for 80mm screws are often interchangeable among different models.
Control System Compatibility
Machines equipped with the following controllers commonly support 80mm screws:
NC8300
NC9000
NC9300
Newer TACT series controllers
This compatibility ensures that screw replacements and upgrades can be integrated without extensive modifications.
Series Support
Replacement 80mm screws are typically stocked for these Nissei series:
FS
FE
ES
FN
FV
NS
NEX
PNXIII
This broad support makes it easier to maintain and service machines with 80mm screws, reducing downtime and improving operational efficiency.
Why the 80mm Screw Size Matters
Choosing the right screw diameter impacts the quality and efficiency of the molding process. An 80mm screw offers several advantages:
Higher Shot Capacity
Larger screws can melt and inject more material per cycle, increasing production output.
Better Mixing and Melting
The screw design ensures thorough melting and mixing of plastic pellets, which improves part consistency.
Durability for Heavy-Duty Use
80mm screws are built to withstand the stresses of large-tonnage machines, extending service life.
For manufacturers handling large parts or high volumes, machines with 80mm screws provide the necessary power and precision.
How to Choose Between an 80mm Screw and 80-Ton Clamping Force Machine
The choice depends on your production needs:
For large parts or high shot volumes, select machines with an 80mm screw diameter and higher tonnage (400-500 tons).
For smaller parts or lower volume runs, machines with 80-ton clamping force and smaller screws are more cost-effective and energy-efficient.
Understanding your product requirements and production goals will guide you to the right machine.
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