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50mm Nissei End Cap - Call Now - 770-417-6983

  • megan15067
  • Feb 27
  • 3 min read

www.completeplastics.com / sales@completeplastics.com. Injection molding machines require precise components to maintain performance and reliability. One such critical part is the 50mm Nissei end cap, designed specifically for injection units marked as 50A or 50E. These end caps are essential for several Nissei horizontal and vertical machine series, ensuring smooth operation and durability.


This post explores the features, compatibility, and technical details of the 50mm Nissei end cap, helping you understand why it’s a vital replacement part for your molding equipment.


50mm Nissei End Cap

Compatibility with Nissei Machine Series


The 50mm Nissei end cap is commonly paired with a 50mm screw and barrel, making it a standard replacement for various Nissei injection molding machines. Here are the main series where this end cap fits:


  • FN and FNX Series

Used in models like the FN5000, which features the 50A injection unit, and the hybrid FNX series. These machines are popular for their versatility in horizontal molding.


  • NEX Series

Compatible with all-electric models such as the NEX-V and older NEX variants that use the 50E or 50A injection units. These machines are known for precision and energy efficiency.


  • Vertical Series

Larger vertical machines like the TNX and TH series use this end cap to handle higher shot capacities. These vertical machines are common in insert molding and overmolding applications.


  • Other Models

The 50mm end cap also supports a broad range of legacy and modern Nissei series, including FS, FE, ES, FV, NS, and PNX. This wide compatibility makes it a reliable choice for many operators.


Understanding which machines use the 50mm end cap helps ensure you order the correct part for your equipment, avoiding downtime and costly errors.


Technical Specifications of the 50mm Nissei End Cap


Knowing the technical details of the end cap is crucial for maintenance teams and purchasing managers. The standard replacement end caps for 50A and 50E units typically have these specifications:


  • Outer Diameter (OD): 5.9 inches (approximately 150mm)

  • Width: 4.33 inches

  • Nozzle Threads: Usually M50 x 2.0, matching the screw and barrel threads for a secure fit

  • Bolt Pattern: 10-hole configuration, ensuring stable mounting and alignment

  • Material: Made from 4140 high-tensile steel, often finished with chrome plating or nitride treatment for enhanced wear resistance and longevity


These specifications guarantee that the end cap withstands the high pressures and temperatures typical in injection molding processes. The choice of 4140 steel provides strength and toughness, while surface treatments reduce corrosion and wear.


Why Choose a Quality 50mm Nissei End Cap?


Using a high-quality end cap designed for your specific injection unit offers several benefits:


  • Improved Machine Reliability

A properly fitting end cap prevents leaks and misalignment, reducing the risk of machine failure.


  • Extended Component Life

Durable materials and finishes protect against wear, saving money on frequent replacements.


  • Consistent Molded Part Quality

Stable injection conditions help maintain consistent shot size and pressure, leading to better product quality.


  • Reduced Downtime

Easy installation and compatibility with multiple Nissei series mean faster maintenance and less production interruption.


For operators running Nissei machines, investing in the right end cap is a practical way to support ongoing production efficiency.


How to Order the 50mm Nissei End Cap


If you need a replacement 50mm Nissei end cap, contact suppliers who specialize in injection molding parts. One reliable source is Complete Plastics, which offers this part with expert support.


When ordering, provide your machine model and injection unit type (50A or 50E) to ensure you receive the correct end cap. Mention the 10-hole bolt pattern and thread size if possible.


Installation Tips for the 50mm Nissei End Cap


Proper installation helps maximize the lifespan and performance of the end cap:


  • Clean the Mounting Surface

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Remove any debris or old gasket material before fitting the new end cap.


  • Check Bolt Tightening Sequence

Tighten bolts evenly in a crisscross pattern to avoid warping the end cap.


  • Inspect Threads and Seals

Ensure nozzle threads and seals are in good condition to prevent leaks.


  • Use Recommended Torque Values

Follow manufacturer torque specifications to avoid damage.


Following these steps reduces the chance of installation errors that could affect machine operation.


Summary


The 50mm Nissei end cap is a key component for many Nissei injection molding machines, including the FN, FNX, NEX, and vertical series. Its 10-hole bolt pattern, durable 4140 steel construction, and precise dimensions make it a reliable replacement part that supports machine performance and product quality.


For operators and maintenance teams, sourcing the right end cap from trusted suppliers like Complete Plastics ensures smooth production and reduces downtime. If your machine uses a 50A or 50E injection unit, consider upgrading or replacing your end cap with this proven component.


 
 
 

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