Coated timing belt selected for coin-sorting machine

Reis Eurosystems has developed the Nummus 6531-V coin handling machine that is capable of pre-cleaning, identifying, sorting and counting over 3000 mixed coins per minute with almost total reliability. Used in banking and financial organisations, the machine is one of several models produced by the German manufacturer that helps speed the irksome process of money counting and reduce customer waiting times.

The impressive level of coin detection reliability is realised by state-of-the-art high-frequency sensor technology that quickly and positively identifies coins and counterfeits during the sorting process.

As a fundamental part of the equally important coin transportation system, Reis Eurosystems use a Breco Power 250 XL series timing belt with a special orange-coloured Linatrile backing that provides the friction and grip necessary to continuously move and separate coins under the sensors. This indispensable component was chosen after comprehensive testing in comparison with several other belts and coatings. The XL timing belt used on the machine has a length of 635mm, a width of 6.35mm and has all the benefits of the Brecoflex Power range - constant length with no post elongation, S and Z twist tension members, reduced noise and high efficiency.

Material properties

The Linatrile backing, with its 55 Shore hardness, further increases the belt's abrasion resistance and provides an optimum combination of high-friction, wear- and strain-resistance, ensuring a long life with minimal maintenance. The nitrile rubber-based coating also provides very high resistance to dirt and dust, enabling less sensitive coin recognition optical systems to be used - which have better immunity to contamination. Consequently the machine's build cost is lower than it would be if more sophisticated sensors were required.

Transdev is the exclusive UK distributor for Breco and Brecoflex products. The company provides applications engineering support to help customers determine the best belt backings from an extensive range of adhesive-bonded and vulcanised materials to aid parts transfer, increase wear resistance, reduce or increase friction and extend in-process durability. With its extensive precision grinding and machining facilities, Transdev also supplies synchronous timing belts and friction drive belts with flights, pockets, slots and holes for belt lengths up to 70m and widths to 600mm.