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Michelin Retread Technologies Process

1

Grazing Light Inspection

A unique grazing light technique is used from shoulder to bead to detect subtle irregularities that might indicate potential problema áreas.
2

Electronic Liner Inspection

Powerful electronic currents pinpoint otherwise invisible defects.
3

X-Ray Inspection

Suspected Steel damage, identified during grazing light inspection, is examined by fluoroscopic x-ray. This advanced x-ray system reveals the status of the steel belts and cables hidden within the casing.
4

Radial Buffing

A computer-controlled radial buffing system is used to ensure optimal undertread depth. Precise buffing is critical to retread performance as a correct undertread contour promotes long, even treadware.
5

Casing Integrity Analyzer® (CIA)

The MRT laser-light Casing Integrity Analyzer uses laser beams to map the inner contour of the casing, spotting any hidden separations.
6

Heat Cure Repairs

Any necessary repairs are completed via heat curing, ensuring optimal adhesion and improved tear resistance. A heat cured repair will last longer than chemical repairs used by other processes.
7

Pre-Mold™ Builder Balance Improvement

MRT Builder Balance Improvement is used to index tread and cushion joints, guaranteeing a better, smoother ride with less irregular wear.
8

Pre-Mold™ Cushion Extrusion & Tread Building

Hot cushion gum is extruded onto the tire casing, creating a strong tread-to-casing bond. Our computer-controlled Tread Builder ensures correct tread positioning.
9

Enveloping

Pre-Mold retreads are double-vacuum-enveloped, creating uniform mechanical pressure that promotes full integration of repairs.
10

Pre-Mold™ Curing

Pre-Mold retreads are cured to Michelin protocols for time, temperature, and pressure.
11

Final Inspection

No retread leaves the STTC plant without undergoing a comprehensive final inspection, ensuring that all finished retreads adhere to Michelin’s stringent quality standards.

Work with a qualified retreading company to ensure quality tires

The only way you can be assured of the quality of the retread tires delivered to your fleet is by working with a qualified retreading firm like STTC and discussing their tire analysis and testing work with them. Come find out more about our process by contacting us for a plant tour. We are certain you will be impressed by our facilities. STTC also employees a casing asset management program that will define the specifications acceptable for capping your tires; such as how many times it has been capped, the age, and how many repairs are necessary.