MARANGONI

RINGTREAD

 SYSTEM

RETREADING RAISED
TO PERFECTION

RINGTREAD, a complete cold retreading system
that guarantees a perfect end result.

25%

of the European market share? thanks to RINGTREAD

Thanks to RINGTREAD, more than 25% of cold retreaded tyres in Europe are produced through the use of Marangoni technology and this market share is growing. This is because it is the best technology for retreading that is nothing but advantageous: savings in terms of time, resources, and organization; top performance that only the spliceless ring can offer.
We make all the know-how of the Marangoni Group available to you, a group which has successfully made retreading its priority for more than 70 years.

THE BEST SYSTEM FOR THE RETREADER

MAXIMUM PRODUCTIVITY

5 minutes less
for each tire retreaded

If labor is a cost, the saved time turns into saved money.

3 minutes are saved with the faster building time because the RINGTREAD System doesn't involve: tread measuring and cutting, the manual application and the splicing operation.
2 minutes are saved with the elimination of the tread loading and unloading phases and the elimination of waste handling, typical operations of the traditional retreading with flat precured treads.

NO
WASTE

6% less material

With the saved material you can retread 1 extra tyre every 16 and a half tyres

Uniform stretch: 1%
Conventional tread cannot be stretched
in the splice area
Smaller average undertread: 2%
Thanks to radial pressing the RINGTREAD undertread is uniform on all its base surface
No waste: 2%:
Tread ends become oxidized and must be
thrown away
Concave pressing: 1%
The flat tread circumference is always the same,
while in the RING it decreases near the shoulders

MORE EFFICIENCY IN LESS SPACE

Better use
of the manufacturing area

RINGTREAD System ensures a high level of automation. The process automation affects costs, rationalization and production performance increase:

• RINGTREAD System provides the usage of high efficiency machinery, less manpower and idle time elimination.
• Working space optimization: no more cutting stands, no more hoists for tread lifting.

SUPERIOR
QUALITY

Your best retread

With the RINGTREAD System you obtain a retreaded tyre that guarantees maximum reliability and performance levels that are comparable, if not superior, to those of a new tyre.

With the broadest range of technologies, services, and products, you can meet the needs of your customers, respond quickly to changes, and enter new market segments.
RINGTREAD TESTIMONIALS

“The advantages of the tyres made in our plant using Ringtread technology were immediately clear, both to us and our customers, and indeed demand has grown constantly. Uniform processing and excellent values in terms of concentricity and balance mean that our product offers clear advantages over tyres made using traditional flat strips. Our mission is to offer our customers tyres that are absolutely reliable, guaranteeing the highest performance and reduced vehicle downtime, and consequently economic benefits. In this way, they don’t buy ‘just’ a retreaded tyre”

– Uwe Müller –

AD presso Reifen Müller GmbH – Hammelburg-Westheim

RINGTREADINGVS RETREADING

BUFFING

Convex profiles perfectly match to the curvature of the tread ring. The tread residual is uniform along the surface, thus ensuring maximum adhesion between tread and casing. The advantages are improved performance on the road and increased tyre life.

uniform tread = more kilometers

The traditional buffing of a flat tread does not remove the residual tread uniformly.
This causes deformation and weak points that bring to tyre overheating.
Furthermore the flat tread has to follow the curvature of the casing. The result is more stress between tread and casing that reduces tyre life.

BUILDING

Ringtread is the only one tread that, because of its tailor-made ring, has not joints and weak points. The advantages are improved reliability and better performance.

SPLICELESS = MAXIMUM RESISTANCE

Uses flat treads and therefore needs to be cut to length and spliced. The tread pattern is subject to longitudinal and transverse deformation.

CURING

The curing of a ring is uniform around the complete circumference. The advantages are an impeccable appearance, and uniformity of the tread pattern.

NO DEFORMATION = MAXIMUM GRIP

The pattern can change at the tread splice. This causes the increased possibility of tread lift.

MACHINERY

  • INSPECTION

    Highly qualified operators, using sophisticated equipment especially developed by Marangoni, determine the characteristics of the casings and select the best ones.

  • BUFFING

    Residues of the old tread are completely eliminated, leaving a surface on the casing featuring crests and grooves designed especially to improve adhesion of the ring.

  • REPAIR

    Following additional inspection, any damage to the tyre is repaired specifically before applying the ring. Marangoni trains personnel continually on how to carry out these operations.

  • BUILDING

    The Marangoni building machines place and automatically centre the ring on the casing, rolling it to maximise adhesion. The machinery used is extremely sophisticated and eliminates all possibility of human error.

  • MONORAIL

    The casings are handled in such a way as to prevent any contact with impurities and debris, using a made-to-measure monorail that, exploiting a double envelope system, ensures maximum adhesion of the new parts to the casing.

  • CURING

    This guarantees a perfect seal between the ring and the casing, the last step in obtaining a high quality tyre.

Marangoni offers its retreaders a useful service to order online all materials for retreading