Measure Before It Costs You: Why Screw & Barrel Inspections Matter

The screw and barrel are the heart of every injection molding machine, yet they are often overlooked until quality issues, excessive scrap, or longer cycle times begin to appear. By then, wear may already be impacting melt quality, process consistency, and production costs.

As the clearance between the screw and barrel increases through normal wear, plasticizing efficiency declines. This can lead to inconsistent shot sizes, higher melt temperatures, increased energy consumption, black specks, longer recovery times, and unnecessary resin waste.

Rather than waiting for problems to occur, Reiloy recommends making screw and barrel measurement part of a planned preventive maintenance program. During scheduled maintenance, the screw and barrel should be thoroughly cleaned, measured using the proper instruments, and the results documented over time. Tracking wear trends allows maintenance to be planned before performance begins to suffer.

Addressing wear before it becomes critical helps maintain consistent melt quality, protects part quality, reduces scrap, and maximizes the life of your plasticizing components.

In today’s environment of rising material and energy costs, every pellet counts. A proactive measurement program is one of the simplest and most cost-effective ways to improve process stability, reduce downtime, and avoid costly surprises.

For processors looking to better understand screw and barrel wear, Reiloy’s Screw & Barrel Handbook is one of the industry’s most respected technical resources. It covers wear measurement, screw design, materials, processing considerations, and maintenance best practices.

Another advantage of partnering with Reiloy is its stocking program, which minimizes lead times when replacement becomes necessary, helping processors avoid extended downtime and get back into production faster.

Download the Reiloy Screw & Barrel Handbook