70mm Negri Bossi End Cap - Available Now - www.completeplastics.com
- Heat Tech
- Feb 23
- 4 min read
Injection molding machines require precise and reliable components to maintain performance and efficiency. One such critical part is the 70mm Negri Bossi end cap with 12 holes, designed specifically for Negri Bossi machines using a 70mm barrel. This end cap plays a vital role in the injection unit, ensuring proper sealing and heat distribution during the molding process. If you operate Negri Bossi machines or are looking for replacement parts, understanding the specifications and compatibility of this end cap is essential.
What Makes the 70mm Negri Bossi End Cap Important?
The end cap is a key component in the injection molding machine’s barrel assembly. It seals the rear of the barrel, allowing the screw to rotate and inject molten plastic into the mold without leaks. The 70mm size refers to the screw diameter, which is common in medium-to-large tonnage machines. These machines handle higher shot volumes, making the end cap’s durability and precision crucial.
The 12-hole design on the end cap allows for secure mounting and even heat distribution, which helps maintain consistent temperature control during the injection cycle. This prevents material degradation and improves the quality of molded parts.
Compatible Negri Bossi Models Using 70mm Components
Negri Bossi manufactures a range of injection molding machines that use 70mm barrels and end caps. These models vary in size and application but share the need for compatible parts like the 70mm end cap with 12 holes.
NB 300 Series
This older but widely used series includes models explicitly documented with a 70mm screw diameter. These machines are reliable for medium tonnage applications and benefit from readily available replacement parts.
V Series
The hydraulic Negri Bossi V 70-200 model uses 70mm assemblies for its injection units. This series is known for its robust hydraulic systems and precise injection control.
NOVA sT & VECTOR sT Series
These modern servo-hydraulic machines range from 180 to 1300 tonnes. They often offer 70mm screws as standard or optional sizes, balancing injection pressure and shot capacity for various molding needs.
BiPower Series
Larger two-platen machines over 1300 tonnes sometimes use 70mm end caps in secondary or smaller injection units. This setup supports multi-material molding or specialized injection processes.
Technical Specifications of the 70mm End Cap
Understanding the technical details helps ensure you select the right end cap for your machine and application.
Threads
The common nozzle body threads for Negri Bossi units in this size range are 70x3. These threads fit models such as 100SV, 150, 150SV, and 210TEC, ensuring compatibility with standard nozzle assemblies.
Heating Requirements
The end cap typically requires 70mm x 38mm nozzle band heaters. These heaters maintain the necessary temperature for the plastic melt, preventing cold spots and ensuring smooth flow.
Material and Durability
The end caps are made from high-grade steel or alloy materials designed to withstand high pressure and temperature. This durability extends the life of the component and reduces downtime.
Why Choose www.completeplastics.com for Your 70mm Negri Bossi End Cap?
Complete Plastics offers genuine and high-quality replacement parts for injection molding machines, including the 70mm Negri Bossi end cap with 12 holes. Here’s why sourcing from them makes sense:
Wide Availability
They stock a variety of Negri Bossi components, ensuring you get the right part quickly without long lead times.
Expert Support
Their sales team can help identify the correct end cap for your specific machine model. Contact them at sales@completeplastics.com or call 770-417-6983 for personalized assistance.
Competitive Pricing
Complete Plastics offers fair pricing without compromising quality, helping you maintain your production budget.
Reliable Shipping
Fast and secure shipping options ensure your parts arrive on time, minimizing production interruptions.
Installation Tips for the 70mm End Cap
Proper installation of the end cap is essential for optimal machine performance. Here are some practical tips:
Check Compatibility
Confirm the end cap matches your machine’s screw diameter and thread specifications before installation.
Inspect for Damage
Examine the end cap for any signs of wear or damage. Replace if any cracks or deformities are present.
Use Correct Heating Bands
Install the recommended 70mm x 38mm nozzle band heaters to maintain consistent temperature.
Torque Specifications
Follow the manufacturer’s torque guidelines when tightening the end cap bolts to avoid leaks or damage.
Regular Maintenance
Periodically inspect the end cap during machine maintenance to ensure it remains in good condition.
Practical Applications and Benefits
Using the correct 70mm Negri Bossi end cap with 12 holes delivers several benefits:
Improved Sealing
Prevents material leakage, reducing waste and maintaining injection pressure.
Consistent Heating
Supports even temperature distribution, improving melt quality and part consistency.
Extended Machine Life
Durable components reduce wear on the screw and barrel, lowering maintenance costs.
Versatility
Compatible with multiple Negri Bossi models, making it a flexible choice for various production needs.
Summary
The 70mm Negri Bossi end cap with 12 holes is a vital component for medium-to-large tonnage injection molding machines. Its design supports secure sealing, proper heating, and compatibility with several popular Negri Bossi series, including NB 300, V Series, NOVA sT, VECTOR sT, and BiPower. Sourcing this part from www.completeplastics.com ensures you receive quality, availability, and expert support to keep your molding operations running smoothly.
Comments