How can you save a lot of money on truck tyres? First and foremost, it’s crucial to learn about retreading. What are retreaded truck tyres? Retreading allows truck tyres to be regenerated. This article will provide you with a definition of truck tyre retreading.

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Get your truck tyres retreaded at Star Truck Tyres.

What is truck tyre retreading?

More and more often, we hear that a good truck tyre is a retreaded tyre. Many drivers are unaware that the truck tyre retreading process is very cost-effective. In practice, retreading involves the following steps:

• Removing the old, worn tread;

• Exposing the truck tyre body;

• Adding new tread,

• vulcanizing both surfaces.

Only a tyre with an undamaged body can be retreaded. Otherwise, the truck tyre would not guarantee the safety of the vehicle. The vulcanization of both surfaces is done after adding a layer of rubber to the cleaned body.

Retreading of truck tyres:

• This should only be done by specialists. 

• It requires the use of appropriate equipment.

• It implies respect for procedures.

• It concerns the tyres of directional and driving axles.

Retreading truck tyres: two types of retreading

Truck tyres can be retreaded in two ways: cold or hot. Each method has its advantages and disadvantages. The first is essentially the printing of the tread pattern. The tread is attached to the tyre body. Cold retreading works a little differently. It involves glueing the tread to the tyre casing.

Cold retreading

Cold retreading involves the following steps:

• cleaning the casing;

• Adding a new tread;

• inserting the tyre into the autoclave (vulcanization).

The costs are lower than those of hot retreading. This is an undeniable advantage of cold retreading. Retreaded tyres are regenerated in specialized ovens (autoclaves) with high temperatures and appropriate pressure. They allow the tread to be permanently fixed to the carcass (tyre body). Special procedures are used to check whether the tyre has been properly regenerated. Any defects (e.g. deformations) can be eliminated.

When the tread is put into the autoclave, the temperature can reach 110-120 °C. The process takes about three hours.

The main advantages of cold retreading are:

• a lower price compared to hot retreading;

• a wider choice of treads.

Unfortunately, the process has a latent defect: cold retreaded tyres are more easily damaged. In general, this is because the tread tends to peel off. Therefore, truck tyres retreaded this way are used in the construction and transport sectors, but for short distances.

Hot retreading

Hot retreading of truck tyres involves the following steps:

• preparation of the carcass,

• the addition of an extra layer of rubber,

• printing the tread pattern,

• inserting the tyre into the hydraulic press.

This is a much more expensive method of tyre regeneration, as the process requires a hydraulic press. The effective application of the tread requires high pressure and the right temperature. In addition, each tread profile and size requires its own mould. The process does not take three hours, as in the case of cold retreading, but about one hour because in the last step, the temperature reaches 160 °C.

The main advantages of hot retreading are:

• obtaining an almost new tyre,

• increase of the mileage by 100%;

• minimization of retreading waste.

Although hot retreading is three times faster, both methods provide new tyres relatively quickly. The cost of hot retreading is slightly higher, however.

Retreading truck tyres: a way to protect the environment

Because of their excellent properties, reclaimed tyres can be reused. The key benefits of retreading are:

• Extended use of truck tyres;

• Lower tyre profile;

• Lower fuel costs;

• environmental friendliness.

A lower tyre profile reduces rolling resistance, which mechanically reduces fuel consumption. In addition, longer tyre life contributes to protecting the environment because fewer resources (oil, steel) are consumed, and carbon dioxide emissions are reduced.

Compared to the production of new tyres, retreading truck tyres uses up to 70% less oil and reduces the consumption of steel used to manufacture new tyres. Retreading has another advantage over making new tyres: reducing carbon dioxide consumption by 30%.

Is retreading tyres safe?

In general, retreaded tyres are quite safe. Drivers are not always aware that the retreading process for truck tyres does not affect driving comfort or safety. In addition, it is possible to repeat the process two or three times. This depends on the condition of the tyre profile, and the tread must have been removed from the factory less than 5 years ago. Finally, the tyre must be checked for punctures, deformations or burns.