Screw and barrel wear is the single most expensive slow failure on an extrusion line. As flight OD drops and barrel ID opens up, the clearance between them grows, and the screw stops developing the pressure it was designed to. Output falls, melt quality gets inconsistent, and operators compensate by pushing temperatures and screw speed — which accelerates the wear that caused the problem.
The steps ChatterFix schedules for this PM. Every step is a checkable item on the work order — a technician can speak their way through it without touching a keyboard.
Screw and barrel wear is the single most expensive slow failure on an extrusion line. As flight OD drops and barrel ID opens up, the clearance between them grows, and the screw stops developing the pressure it was designed to. Output falls, melt quality gets inconsistent, and operators compensate by pushing temperatures and screw speed — which accelerates the wear that caused the problem.
Crews rarely notice wear directly. They notice that the line 'just doesn't run like it used to': rate creeping down, more gels, wider dimensional spread, and a gradual drift in the recipe as operators dial in around it. By the time a screw is pulled reactively, the barrel is usually gone too, which turns a screw replacement into a barrel replacement.
Six months suits a line running filled or abrasive compounds. Clean, unfilled material can stretch toward annual. Let measurements set the interval, not the calendar — once you have two or three inspections logged, the wear rate tells you when the next one is genuinely due.
This procedure — and every other PM for your industry — is already built into ChatterFix. Pick your industry and it lands on the right equipment, on the right interval, in about three minutes.