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TECH NEWS
14 Retreading Business
Italmatic Launches New Aviation Tyre Buffer
the production of low profile tyres, which are even less resistant than the 80 series. A direct consequence of the low profile tyres is the need to have a faster and more effective instrument to check the casing from bead to bead.
As a result of these needs Marangoni developed the Sfera 3003. It is a new generation of equipment intended for cold process large tyre retreaders for the complete inspection of the tyre without the need to rotate it. Thanks to its three heads the Sfera 3003 is able to accomplish multiple tasks simultaneously: an analysis of the tread occurs at the same time the sides are inspected without having to move the tyre.
These operations are part of a fully automated cycle which ensures high productivity, labour savings, reduction in processing time and consequent cost effectiveness.
By combining several steps of the process the use of the Sfera 3003 results in significant savings in terms of reducing inspection time. The main features of the machine are: analysis only cycle time of 120 seconds (30 tyres/hr), floor to floor cycle time of 180
seconds (20 tyres/hr), and BtoB production doubled compared to smaller inspection machines.
The Sfera
3003 is a
machine
aimed at
large
retreaders
who want to
pursue the
benefits of
using
Ringtread technology in
the cold
retreading
process up to a maximum production of
160 Ringtread retreaded tyres per 8 hour shift.
RINGTREAD: The RDG101 is released
Marangoni Retreading Systems, has decided to take on a new challenge: the design and production of next- generation Ringtread rings able to overcome the existing incompatibility between mileage and grip performance.
The success of the RDG100 design has resulted in the development of the RDG101 profile that can be considered an evolution of the
former, suited to meet the needs of the latest generation casings that require squarer shoulders and a wider footprint.
The RDG101 can be used on the drive axles of vehicles on regional, national and international transport routes.
It has a bidirectional, multifunctional and all-season design characterised by its wide footprint that facilitates adaptation to changing climatic and road conditions encountered during service. The special "interlock" siping present on the tread blocks ensures excellent control on wet, snowy and icy surfaces. This modern dimensional siping, in addition to being deeper, gives this all-season tread high resistance to tearing and very regular tread wear. The profile is available in the following sizes: 315/80R22.5, 315/70R22.5 and 315/60R22.5. Ringtread is a retreading system using precured splice-free tread rings able to adhere to the casing without any tension or deformation of the tread design. Ringtread ensures good traction even on demanding surfaces thanks to the
greater precision and alignment of the
siping and tread blocks.
Furthermore, the profile is made
with HP compounds
suitable for low temperatures
and able to provide the best possible grip on hazardous winter surfaces. The main advantages
associated with the use of
these special compounds
include improved
elasticity at low temperatures,
reduced rolling resistance and a longer
lifespan of the tread rubber under harsh abrasive conditions. Finally, HP compounds also allow the tyre to work at lower temperatures in conditions that lead to overheating, ensuring reduced casing fatigue and longer life.
Since 1967 Italmatic has been a leading company in the field of the manufacture of machinery for tyre retreading. Through the establishment of two factories in Cassina de’ Pecchi, Milan, Italy (Inspection machines, buffers, builders, extruders, buffing blades, wheels, other accessories) and in Capannori, Lucca , Italy (Autoclaves, presses, moulds), the Italmatic group claims a position as the only company capable of supplying machinery for the retreading of any kind of tyre and for any requirement from A to Z, through to the supply of complete turn-key plants.
Italmatic has just delivered to an important retreader of aviation tyres the new computerised buffing machine, the MATIC AVIO TYRE capable of handling aviation tyres up to a max. diameter of 1750 mm
and to a max. tyre section of 730 mm.
The new computerised buffing machine is equipped with the most modern devices, such as the new Rockwell hardware and software, with 12.5” colour Touch Screen, Rockwell brushless motors, blades cooling system, automatic circumference measurer, steel ply detector and an automatic brushing group.
Considering that Italmatic is already a leading partner for aviation retreaders in the supply of the most modern presses and moulds, such as the Matic Boom 2000 and Matic AF 1600 presses, with the new computerised buffer, Italmatic now has available a complete range of machinery to satisfy the requirements of any aviation tyre retreader
Technological Innovation from Marangoni
Marangoni Retreading Systems is the business unit of the Marangoni Group that operates in the field of materials and technologies for tyre retreading. Thanks to its comprehensive and integrated range of products, it claims to be the absolute leader in the precured retread market in Europe: today more than one quarter of European cold retreaders use materials produced by Marangoni Retreading Systems.
The Division has an annual turnover of over EUR 200 million (60 per cent in Europe, 40 per cent in the rest of the world); 7 manufacturing plants 2 of which are in Italy
(Frosinone and Parma), one in Germany in Hamburg, one in the U.S. in Nashville, one in Brazil in Belo Horizonte and one in Argentine; and a workforce of 600; 350 of which are in Europe and 250 in other countries.
New technology: Sfera 3003
Innovation in Ringtread retreading technology for Marangoni Retreading Systems is driven not only by the concept of high automation of the process, but also to satisfy market demands. In particular, the need to have more load space on the trailer has led to