T-400 Series SCF (Super Critical Fluid) Delivery System
Ideal for Large Injection Molding Applications
Trexel, Inc., Wilmington, MA/USA, introduces the newly developed T-400 Series. The Trexel T-400 Series SCF (Super Critical Fluid) Delivery System is a state-of-the-art gas delivery and dosing system based on Trexel’s patented technology, and built to the most stringent industrial standards. The system is specifically designed for large molding applications of > 2,500-12,500 g..
Model T-400 offers cost effective foaming of large injection molded parts. It retains the similar performance standards from its smaller T-series counterparts yet allows for significant advantages for large injection molded parts. Following are some of those advantages:
- Primary material savings due to a density reduction in the material
- Increased opportunity to optimize mold design for significant secondary material saving
- Reduced clamp tonnage requirement enables the purchase of smaller machines which directly reduces initial investment
- Improved dimensions (particularly with Polyolefins) for better tolerances
- Available option for production quality: nitrogen purity control
- Available option for production continuity: dual inlet
The T-400 has been designed to deliver high doses of nitrogen for large parts. The SCF system is capable of delivering 50 g of nitrogen in a 45 s cycle (0.5% by weight for a 10 kg part weight) and is designed for molding machines with screw size greater than 90 mm.
The system precisely doses and injects the super critical fluid into the plasticizing unit of the injection molding machine at a pressure of up to 240 bar, creating a lower density microcellular material structure in the molded plastic part. It produces gas on demand only, minimizing energy consumption and maximizing booster pump life time. It features a technology leading control system with a 15” PC based graphical touch screen user interface. Set up parameters require only the shot size and percentage of SCF content. The system calculates dosing requirements and optimizes SCF delivery during screw recovery. The MuCell T-Series SCF delivery system provides for reliable and consistent microcellular foaming of injection molded plastic parts.
Within the full T-Series from Trexel, the T-100 is available for small shot size molding applications of < 140 g, the T-200 is available for shot sizes 120–600 g, and the T-300 for shot sizes 600–3,000 g.
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