The added cost of gear pumps can be justified by savings of material because aim thickness can be lower. Another benefit is reducing the load on the extruder, which may include pushing the melt through a static mixer to improve appearance, properties and maybe production rate.
Davis-Standard (Pawcatuck, CT) will process the tubing from Medalist MD-12382 TPE, a translucent, kink-resistant, gamma-stable compound developed by Teknor Apex (Pawtucket, RI).
The unit provides high-speed detection of holes as small as 0.006 inches and can check for obstructions in the bottle neck and variations in wall thickness.
The new compounds are primarily intended for automotive applications such as window trims and sealing profiles made of EPDM with molded corner joints and end elements made of TPE.
