Hydramotion sensor analyzes melt flow inline 

Scorpion sensor technology allows ViscoMelt to deliver lab-level insight in real time.
Nov. 14, 2025

ViscoMelt This inline polymer melt-flow sensor from Hydramotion is designed for recycling applications, including those involving PET. The plug-and-play unit can replace current capillary or lab-based technology, and fits seamlessly into standard thread ports on extruders and narrow-bore melt pipes. Extended length options are also available for tank installations. 

What’s new? Hydramotion’s Scorpion sensor technology that makes the ViscoMelt’s inline measurements possible. 

Benefits Access to lab-level insight, directly at the production line, resulting in real-time control that can help to increase efficiency and reduce waste. The ViscoMelt provides the entire viscoelastic picture of thermoplastics in real time, relating directly to melt-flow index, intrinsic viscosity and molecular weight. Previously, those measurements were only accessible in the laboratory, or with expensive, heavy and slow mechanical equipment. With the ViscoMelt, operators have access to information that can allow them to spot any deviations or quality issues early and respond with corrective measures, which is particularly important with recycled feedstock such as recycled PET, where batches can vary widely with significant downstream consequences. Compact and lightweight, the ViscoMelt has a solid-state design that makes it is easy to maintain, with no gearboxes, melt pumps or other moving parts.  

HydraMotion, York, England, 44-0-653-600294, [email protected], https://hydramotion.com