Milacron recently unveiled a new series of die heads for PVC pipe extrusion.
“The new MPH die head replaces the PH [series of] die heads with added features and performance to meet today’s market requirements,” said Mike Puhalla, Milacron’s director of engineering and technology for extrusion.
The die heads provide up to two times more output capacity per comparable pipe size as compared to the PH series, he said. They are designed to improve wall-thickness control. The design also allows for reduced product changeover times.
Each die head can produce pipes with a broader range of outer diameters and wall thicknesses, reducing the need for additional die heads, which reduces capital and maintenance expenses, Puhalla said.
The MPH die heads feature twist-lock die retention, which allows the die retainer to remain on the die body. A simple twist action is used to unseat the die bushing, Puhalla said.
Milacron supplies a tool with each die head to aid with removal of the die and to help handle heavy, hot parts.
When adjusting the wall thickness, an operator only needs to remove the short land portion of the pin instead of the entire pin. Milacron also supplies a special tool to assist with the pin tip removal. The new MPH die heads can produce pipe as small as five-eighths inch in diameter all the way up to 2.7 feet in diameter. Outputs top out at 4,000 pounds per hour, Puhalla said.
“We view ourselves as a leader in twin-screw counter- rotating PVC extrusion, and with our extruder technologies and screw design technologies, we see this as a natural extension of our product offerings in PVC pipe,” Puhalla said.
Bruce Geiselman, senior staff reporter
Contact:
Milacron LLC, Batavia, Ohio, 513-536-2000, www.milacron.com
Bruce Geiselman
Senior Staff Reporter Bruce Geiselman covers extrusion, blow molding, additive manufacturing, automation and end markets including automotive and packaging. He also writes features, including In Other Words and Problem Solved, for Plastics Machinery & Manufacturing, Plastics Recycling and The Journal of Blow Molding. He has extensive experience in daily and magazine journalism.
