top of page

Key Specifications and Applications for 45mm Niigata Screws in Injection Molding

  • Heat Tech
  • Feb 24
  • 3 min read

www.completeplastics.com, sales@completeplastics.com, 770-417-6983. Key Specifications and Applications for 45mm Niigata Screws in Injection Molding - Injection molding machines rely heavily on the precision and durability of their screws to deliver consistent, high-quality parts. Among these, the 45mm screw used in Niigata plastic injection machines stands out for its role in mid-range tonnage models. These screws are essential components in machines designed for a variety of industries, from electronics to automotive manufacturing. This post explores the key specifications of the 45mm Niigata screw, the machines that use them, and their practical applications.


Close-up view of a 45mm Niigata injection molding screw
Close-up of a 45mm Niigata injection molding screw, showing detailed grooves and metal finish

Key Specifications and Applications for 45mm Niigata Screws in Injection Molding


Niigata is known for producing reliable injection molding machines, especially in the mid-range tonnage category. The 45mm screw is a common feature in several of their models, particularly those with clamping forces between 110 and 180 tons. Here are some notable examples:


  • MD110SIII

This 110-ton all-electric machine often comes equipped with a 45mm screw. It offers a shot size of about 6.3 ounces, making it suitable for precise molding tasks.


  • MD180WLP (I6.5 model)

A 180-ton electric injection molding machine that uses the 45mm screw diameter. This model is designed for larger parts while maintaining accuracy.


  • NE110UA

Older models in the NE series, specifically the 110-ton machines, also use the 45mm screw. These are often found in applications requiring high precision.


These machines are favored for their balance of power and control, making the 45mm screw a versatile choice for various molding needs.


Key Specifications of the 45mm Niigata Screw


Understanding the specifications of the 45mm screw helps explain why it performs well in these machines.


Dimensions and Length


  • Diameter: 45mm

  • Overall Length: Approximately 41.36 inches


The length and diameter are optimized for mid-range tonnage machines, providing a balance between shot size and injection pressure.


Materials


The screw material is critical for durability and performance, especially when molding different types of plastics:

Feed Screw
Buy Now


  • CPM 9V Tool Steel

Known for excellent wear resistance, ideal for abrasive materials like glass-filled polymers.


  • D2 Tool Steel

Offers good toughness and wear resistance, suitable for general-purpose molding.


  • H13 Tool Steel

Provides high heat resistance and toughness, often used when molding corrosive or high-temperature resins.


Choosing the right material depends on the resin type and molding conditions.


Performance Features


Niigata’s all-electric machines, such as the MD8000 series, incorporate advanced features that complement the 45mm screw:


  • HyperNavi Setup

This system simplifies machine setup, improving repeatability and reducing downtime.


  • Load Cells for Scientific Molding

These sensors provide precise control over injection pressure and speed, ensuring consistent part quality.


The screw’s design works in tandem with these technologies to deliver efficient and accurate molding cycles.


Applications of 45mm Niigata Screws


The 45mm screw is widely used in industries requiring precision and reliability. Here are some common applications:


Electronics Components


The precision offered by Niigata machines with 45mm screws makes them ideal for molding small, intricate electronic parts. These parts often require tight tolerances and consistent quality to function properly.


Automotive Parts


Mid-sized automotive components such as clips, housings, and connectors benefit from the shot size and injection pressure capabilities of the 45mm screw. The material options also allow molding of reinforced plastics used in automotive applications.


Household Goods


Everyday items like plastic containers, appliance parts, and consumer goods are often produced using machines with 45mm screws. The balance of shot size and cycle time helps manufacturers meet production demands efficiently.


Why Choose a 45mm Screw for Mid-Range Machines?


The 45mm screw diameter hits a sweet spot for many molding operations. It provides:


  • Adequate Shot Size

Around 6.3 ounces for the MD110SIII, enough for many mid-sized parts without excessive material waste.


  • Versatility

Compatible with a range of materials, from standard plastics to abrasive or corrosive resins.


  • Durability

When made from high-quality tool steels, these screws withstand wear and heat, extending machine life.


  • Precision

Works well with Niigata’s electric machines and advanced control systems to maintain consistent part quality.


Where to Find 45mm Niigata Screws and Support


For companies looking to maintain or upgrade their Niigata injection molding machines, sourcing the right screws is crucial. Suppliers like Complete Plastics offer these screws with specifications tailored to Niigata models.


They provide detailed product information and support to help manufacturers select the right screw for their machines and applications.



 
 
 

Comments


bottom of page