50mm Sumitomo Barrel - Order Now - sales@completeplastics.com
- megan15067
- 2 hours ago
- 3 min read
www.completeplastics.com / 770-417-6983. Injection molding machines require precise components to ensure consistent, high-quality production. One critical part is the barrel, which directly affects the melting and mixing of plastic materials. The 50mm Sumitomo barrel, with a length of approximately 49.86 inches (about 1266 mm), is a popular choice for many mid-to-high tonnage Sumitomo (SHI) Demag machines. This post explores the specifications, compatible machine models, and technical benefits of this barrel to help you make an informed purchasing decision.
Understanding the 50mm Sumitomo Barrel
The 50mm barrel size refers to the diameter of the screw inside the barrel, which is 50 millimeters or roughly 1.97 inches. The length of this barrel is about 49.86 inches, giving it an L/D ratio (length to diameter) of approximately 25:1. This ratio is considered a "long" barrel configuration, which plays a key role in improving melt quality.
A longer barrel allows for better homogenization and mixing of the plastic melt. This is especially important when working with engineering plastics that require uniform temperature and consistent material flow. The 25:1 L/D ratio helps reduce unmelted particles and ensures a smooth, even melt, which improves the final product's strength and appearance.
Compatible Sumitomo Machine Models
The 50mm barrel is designed to fit several Sumitomo injection molding machine series. These machines vary in tonnage and application but share the need for reliable, high-performance barrels.
SE-EV-A-HD Series
This mid-sized series covers machines with clamping forces ranging from 247 to 562 U.S. tons. The 50mm barrel is often part of the standard or "high-duty" configurations in this series. These barrels support a wide range of applications, from general-purpose molding to more demanding engineering plastics.
SE-HSZ Series
The SE-HSZ series consists of mid-sized, high-speed all-electric machines. These models use the 50mm barrel to deliver high injection power and velocity, making them suitable for precision molding tasks where speed and accuracy are critical.
SGM Series (Accumulator-Toggle)
Within the SGM series, the C1250L injection unit specifically lists the 50mm barrel as a core screw diameter option. This series is known for its accumulator-toggle mechanism, which provides strong injection force and precise control.
SE Series (High-Speed All-Electric)
Older and current SE models, such as the SE400HS2-CI, use injection units like the C1250L or C900L, both compatible with the 50mm barrel size. These machines benefit from the barrel's ability to maintain consistent melt quality at high speeds.
Technical Benefits of the 50mm Barrel
The 50mm Sumitomo barrel offers several advantages that make it a preferred choice for many injection molding operations:
Improved Melt Homogeneity
The 25:1 L/D ratio ensures thorough melting and mixing, reducing defects caused by uneven melt temperatures.
Versatility Across Materials
Suitable for a wide range of plastics, including engineering-grade materials that require precise temperature control.
Enhanced Injection Performance
Supports high injection speeds and pressures, especially in all-electric and accumulator-toggle machines.
Durability and Reliability
Manufactured to Sumitomo's strict quality standards, these barrels provide long service life and consistent performance.
Ordering Your 50mm Sumitomo Barrel
If your injection molding operation uses Sumitomo machines in the SE-EV-A-HD, SE-HSZ, SGM, or SE series, the 50mm barrel with a length of 49.86 inches is likely the right fit. Ordering from a trusted supplier ensures you receive a barrel that meets exact specifications and quality standards.
For orders and inquiries, contact Complete Plastics at:
Website: www.completeplastics.com
Email: sales@completeplastics.com
Phone: 770-417-6983
Their team can assist with compatibility questions, pricing, and delivery options to keep your production running smoothly.
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