Printing & Sealing Machine Roller Thermal Monitoring — Replacing Inaccurate Thermocouples

01 The Problem

A food packaging line uses heated rollers to seal each package — too cold and the seal fails, leaks happen, and the entire batch gets rejected. Conventional thermocouples can't sit on a rotating roller without getting pulled around, so the readings drift, and the line tries to compensate by overheating, which damages the packaging itself.

The Risk

Roller temperature instability causes seal failures and batch rejection.

Detection Gap

Thermocouples contacting rollers are pulled by rotation, yielding inaccurate readings.

02 The OctosX Solution

Thermalpas has a special roller-type sensor with an abrasion-resistant outer layer and a spring-loaded contact that rides the roller surface as it spins. OctosX records the temperature uniformity along each roll of product and flags any roll that drifted out of tolerance for review.

Sensor & Edge

Thermalpas abrasion-resistant roller-type (wear coating + spring-loaded contact) + OctosX Cloud per-roll temperature uniformity statistics.

03 The Outcome

At one food plant, the batch rejection rate dropped from 2.5% to 0.3% after installation. That's $1.5 million per year in saved returns and rework — and a quality manager who can now answer 'how do you know?' with real data.

Field Detection

A food plant deploying the system saw batch rejection drop from 2.5% to 0.3%, saving $1.5M annually in returns.

See it in your plant

Could this case be your plant?

Tell us about your facility — busbars, motors, panels, coal blowers, chillers, whatever your highest-risk thermal interface is — and we'll show you what an OctosX deployment would look like.

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