High Temperature
High temperature plastics are processed at melt temperatures ranging from 300 - 450°C (570 - 840°F). These materials present certain molding challenges due their unique processing characteristics. High mold temperatures require special hot runner systems, designed to deliver reliable performance under extreme conditions.
Extreme Conditions
Crystalline thermoplastics such as PEEK, PA4.6, LCP, and PPS are known for their distinct, sharp crystallite melting point. This thermal characteristic demands extremely accurate temperature control of the hot runner along the entire melt channel, from the machine nozzle to the mold cavity.
Built Tough
New Rheo-Pro® Black Box™ pneumatic valve gate actuators and iVG™ nozzles perform even under the most extreme operating conditions by doing away with elastomeric seals, lubricants, and cooling. The new technology is ideal for all valve gate applications including high temperature and clean room applications.
Special Hot Runners
Amorphous thermoplastics such as PSU, PEI or PC are characterized by a high viscosity and a strong adhesion of the melt to the wall of the melt channel. Rheo-Pro® hot runner technology addresses this challenge specifically with special alloys and surface treatments that promote the flow of the melt.
New Rheo-Pro® iVG™ nozzles require no cooling or actuator maintenance over millions of molding cycles. iVG™ is the world's most compact back-to-back valve gate hot runner system and the first and only internal valve gate on the market. It is also the only air actuated valve gate hot runner that operates without seals.