50mm Sumitomo Barrel - Order Now - sales@completeplastics.com
- megan15067
- 9 hours ago
- 3 min read
www.completeplastics.com / 770-417-6983. Injection molding machines rely heavily on the quality and specifications of their barrels to deliver consistent, efficient production. The 50mm Sumitomo barrel stands out as a reliable component for many Sumitomo (SHI) Demag machines, especially those with clamping forces between 180 and 250 tons. This post explores the key features, compatible machine models, and performance benefits of the 50mm Sumitomo barrel, helping you make an informed decision for your injection molding needs.
What Makes the 50mm Sumitomo Barrel a Popular Choice
The 50mm barrel size is a versatile option within Sumitomo’s lineup, designed to fit a range of injection molding machines. Its diameter supports a balance between shot size and injection pressure, making it suitable for mid-sized to larger machines. The barrel length of 53.25 inches allows for efficient plasticizing and melting of materials, which is crucial for maintaining cycle times and product quality.
This barrel size is engineered to handle shot weights typically between 300g and 450g when processing polystyrene (PS), though actual shot capacity depends on the screw stroke and machine settings. Injection pressures usually range from 1800 to 2100 bar, providing the force needed to fill molds accurately and consistently.
Compatible Sumitomo Machine Models
The 50mm barrel is commonly found in several Sumitomo machine series, each designed for specific production needs:
SE-EV-A Series
This flagship all-electric series uses the 50mm barrel as a standard or large option for mid-sized units such as the SE180EV-A and SE200EV-A. These machines benefit from the barrel’s ability to support precise, energy-efficient molding cycles.
SE-HSZ Series
Known for high-speed operation, the SE-HSZ series uses the 50mm barrel to achieve fast cycle times without sacrificing plasticizing capacity. This makes it ideal for high-volume production runs requiring consistent quality.
Systec / IntElect Series
These hybrid and all-electric platforms, originating from the Demag side of the merger, often use 50mm barrels in machines with clamping forces from 160 to 250 tons. The barrel size balances injection pressure and shot weight, supporting a wide range of molding applications.
Legacy Models
Older Sumitomo machines like the SH160, SH250, and SE-D series frequently featured 50mm barrels as upgrades to increase shot size and improve production flexibility.
Key Performance Specifications
Understanding the technical specs of the 50mm Sumitomo barrel helps in selecting the right barrel for your machine and application:
Shot Capacity
The barrel typically supports shot weights between 300g and 450g for polystyrene, depending on screw stroke length and material characteristics.
Injection Pressure
Rated around 1800 to 2100 bar, the barrel can handle the high pressures necessary for precise mold filling. Some high-pressure variants may exceed this range for specialized applications.
Barrel Length
At 53.25 inches, the barrel length ensures sufficient residence time for melting and homogenizing the plastic material, which is essential for consistent part quality.
Material Compatibility
The barrel is designed to work with a variety of thermoplastics commonly used in injection molding, including PS, ABS, and polypropylene.
Why Choose a 50mm Sumitomo Barrel from Complete Plastics
Complete Plastics offers high-quality 50mm Sumitomo barrels that meet OEM specifications. When ordering, you can expect:
Precision Manufacturing
Barrels are made with tight tolerances to ensure proper fit and function in your Sumitomo machine.
Durability
Constructed from wear-resistant materials, these barrels withstand the rigors of continuous production.
Customer Support
The team at Complete Plastics provides expert advice to help you select the right barrel for your machine and application.
Easy Ordering
Contact sales@completeplastics.com or call 770-417-6983 to place your order or request more information.
Installation and Maintenance Tips
To maximize the lifespan and performance of your 50mm Sumitomo barrel, consider these best practices:
Proper Installation
Ensure the barrel is installed according to Sumitomo’s guidelines, with correct alignment and torque settings.
Regular Cleaning
Periodically clean the barrel and screw to remove residue and prevent material build-up that can affect shot consistency.
Monitor Wear
Inspect the barrel for signs of wear or damage, such as scoring or corrosion, and replace components as needed to maintain performance.
Use Compatible Materials
Avoid abrasive or highly filled materials that can accelerate barrel wear unless the barrel is specifically designed for such applications.
Summary
The 50mm Sumitomo barrel is a reliable, versatile component for mid-sized injection molding machines with clamping forces between 180 and 250 tons. Its balance of shot capacity and injection pressure suits a wide range of production needs, from high-speed all-electric machines to legacy hydraulic models. Choosing a high-quality barrel from Complete Plastics ensures durability and consistent performance, backed by expert support.
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