71mm Nissei Screw - Available Now - www.completeplastics.com
- Heat Tech
- Feb 27
- 3 min read
770-417-6983 / sales@completeplastics.com. Plastic injection molding machines rely on precise components to maintain performance and product quality. One critical part is the screw and tip assembly, which directly affects the melting, mixing, and injection of plastic materials. For Nissei machines equipped with a 71mm diameter screw, the 71mm Nissei screw and free-flow tip assembly is a trusted replacement component. This post explores the features, compatibility, and technical details of this essential part, helping machine operators and maintenance teams make informed decisions.
Compatibility with Nissei Machine Series
The 71mm Nissei screw and free-flow tip assembly fits a wide range of Nissei plastic injection molding machines. It is designed to work with machines that have a 71mm injection unit diameter, spanning several generations and models. Here are the main series compatible with this assembly:
Horizontal Hydraulic/Hybrid Models
Older legacy series such as FS, FE, ES, and FN series use this assembly when configured with a 71mm screw and barrel.
Modern Hybrid Models
Newer models like the FNX series (including FNX-III and FNX-IV) and the FV series also support this assembly.
All-Electric Models
The NEX and NEX-III series, which are fully electric injection molding machines, are compatible with the 71mm screw and tip assembly.
Vertical Models
Vertical and insert molding machines such as the ST, TH, TNXIII, and PNXIII series use this assembly when equipped with the 71mm injection unit.
Specific Model Examples
To provide clarity, here are some specific Nissei models frequently associated with the 71mm screw and tip assembly:
Nissei FN5000-71A
A popular model known for its 71mm screw size and reliable performance.
Nissei FS260S71A
Part of the FS series, this model specifically uses the 71mm bore size for its injection unit.
These examples highlight the broad applicability of the 71mm Nissei screw assembly across different machine types and generations.
Technical Specifications for Identification
When selecting a replacement screw and tip assembly, confirming the technical specifications ensures proper fit and function. The 71mm Nissei screw assembly typically features the following:
Thread Type
Trapezoidal M44 x 3.0mm LH (Left Hand) thread, which is standard for this size and compatible with Nissei machines.
Overall Length (OAL)
Approximately 9.61 to 9.67 inches, allowing it to fit precisely within the barrel and injection unit.
Nose Angle
A 40° included angle (20° per side) on the tip, designed for efficient plastic flow and reduced wear.
Material Options
Available in different materials depending on the application and wear requirements:
- H-13: General purpose steel, suitable for standard molding conditions.
- D-2: Moderate wear resistance, ideal for tougher materials.
- CPM 9V: High wear resistance, recommended for glass-filled resins and abrasive materials.
Choosing the right material extends the life of the screw and tip assembly and improves molding consistency.
Why Choose the 71mm Nissei Screw and Tip Assembly?
Using the correct screw and tip assembly is crucial for maintaining machine efficiency and product quality. The 71mm Nissei screw assembly offers several benefits:
Reliable Compatibility
Designed specifically for Nissei machines with a 71mm injection unit, it ensures a perfect fit without modification.
Durability
Material options allow customization based on wear conditions, reducing downtime and replacement frequency.
Consistent Performance
The free-flow tip design promotes smooth plastic flow, reducing pressure fluctuations and improving part quality.
Ease of Replacement
Standardized dimensions and thread types make installation straightforward for maintenance teams.
How to Order and Get Support
The 71mm Nissei screw and free-flow tip assembly is available now at www.completeplastics.com. For inquiries or to place an order, you can contact their sales team:
Email: sales@completeplastics.com
Phone: 770-417-6983
Complete Plastics offers expert support to help you select the right assembly for your machine and application. Their team can assist with technical questions and provide guidance on material choices.
Comments