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PNEU SERVICE OUTILLAGE

REGROOVING

REGROOVING WITH PSO an economical technique which helps protect the environment

Regrooving is a process which involves restoring the tread surface of a used tyre by recutting its grooves with a hand-held tool up to 4mm of tread depth to further extend its durability. It is also known to be a sensible and economical technique that helps conserve natural materials used for manufacturing brand new tyres.

Pneu Service Outillage (PSO) are global specialists for HGV tyre regrooving equipment. In their more than 60 years of establishment, they have been continuously progressing and developing their tyre regrooving expertise which then led them to become one of the few world-renowned specialists in the field.

Regrooving extends tyres’ useful lives

Regrooving is performed using a manual tool which combines a heating element with a blade. This enables a tyre to travel a further 20-30% of the distance it has already covered. Manufacturers give very specific instructions for each of their models. The technique enables you to make emergency stops and achieve a groove depth equivalent to a tyre at half of its useful life. Now you understand why the real name for this operation is “adhesion”. A 2mm rubber layer is left between the carcass and the base of the new groove, maintaining full carcass protection and ensuring full stability for the tyre tread.

 

A tyre is regrooved once its resistance is at its lowest point. Effectively, the lever effect created between the carcass and the road will drop at the same rate as the tread is worn down. This phenomenon leads to lower fuel consumption (a reduction of CO2 emissions of 1.6 tonnes per set per year) as well as much slower tyre wear: 1.6mm / 10,000km for new tyres and 0.8mm / 10,000km for regrooved tyres. A second regrooving operation is advised following tyre retreading, too.

In short, regrooving is a great way of saving on your tyre expenses, and offers real benefits for transport companies who use it.

When you regroove four of your tyres, you’re saving the equivalent of a whole new tyre and protecting the environment at the same time.

Regroove four tyres, and you’ll save the equivalent of a brand new tyre and stop four perfectly good carcasses from being thrown away. Help protect the environment by consuming less fuel and throwing out fewer tyres.

why-regroove   Why Regroooving?

MICHELIN Truck and Bus Tyres are engineered for Multi-Life= Regroovable and Retreadable!

  • More Mileage: save 1 tyre every 4 !
    • Regrooving is carried out at a time when the
      original tread depth has 3 to 4 mm. remaining
      and the tyre is normally removed.
      Regrooving restores tread depth thus providing
      up to 25% more kilometers.

 

  • More Safety through grip regeneration
    • Regrooving significantly renews the grip of
      the tyre through the regeneration of the
      groove up to 4 mm. beyond the original bottom
      of the groove.

 

  • Less Fuel Consumption and less CO2 emissions
    • Regrooving is carried out in the phase when
      the tyre has the lowest rolling resistance due to
      higher rigidity of the shallow tread pattern,
      and Low Rolling Resistance means increased
      Fuel Efficiency.

 

  • Less Raw Materials Consumption to preserve the environment
    • By adding only 5% additional rubber volume
      when the tyre is new, a Michelin Regroovable
      tyre will add up to 25% more kilometers
      which creates a 16% reduction in raw materials
      when compared to non-regroovable tyres.

 

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Regrooving indicators

Many Michelin tyres have a regrooving well in the center of the tread wear indicators as a guide for high-quality regrooving. Some tyres do not have these indicators but are still fully designed for and ready to be retreaded. Just follow the steps detailed in this manual to ensure the proper depth is obtained.

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Michelin new tyre design provides REGROOVE capability to extend life beyond the original tread depth

 

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Regrooving for Different Usage Conditions:

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Regrooving Recommendations

Carry out the regrooving when there is still 2 to 4 mm. of tread

This precaution makes it possible to:

  • Reproduce the tread pattern easily.
  • Adjust the regrooving depth so as to always keep at least
    2 millimeters of compound between the bottom of the
    tread pattern and the crown layers.

If Regrooving is too deep:

  • Result in damage that causes the premature destruction
    of the casing.
  • Compromise the possibility of retreading.
  • Allow metal layers of the crown to appear, which may
    reduce the life of the casing.
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Regrooving is not recommended:

If the tread shows major damage:

  • Multiple holes and cuts, places where the tread has been
    torn off.
  • If the metal layers of the crown can be seen through
    damage or cuts.

 

It is essential that the regrooving be carried out by professionals in accordance with our recommended rules.

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