OPTIMA HEAT XTREME
Optima Heat Xtreme – the new stronger, tougher, heat resistant belt
Optima Heat Xtreme – the new stronger,
tougher, heat resistant belt
High temperatures within the inner carcass of a multi-ply heat resistant conveyor belt cause the plies to separate, resulting in catastrophic failure. The term used to describe this is ‘de-lamination’ and is one of the most common reasons why belts claiming to be heat resistant fail and need to be replaced prematurely. However, the engineers and scientists of Michelin-owned Fenner Dunlop Americas, our sister company in North America, have virtually overcome the problem of delamination by replacing the conventional multiple layers of fabric that are prone to separation with a super-strong mono-ply carcass.
The power of FENNER DUNLOP engineering
OptimaHeat Xtreme specification
Up to 400°C
Optima Heat Xtreme is a revolutionary single-ply high heat resistant belt that utilises an amazingly tough patented super strength fabric that is exclusively produced in our own in-house weaving facilities. Unlike conventional multi-ply belting, the fabric has exceptional resistance to ripping, tearing and impact. Protecting the fabric carcass is a high heat resistant rubber compound engineered to withstand maximum continuous material temperatures as high as 200°C and extreme peak temperatures as high as 400°C. In addition to its ability to resist the usual hardening and cracking caused by exposure to extreme temperatures, the major advantages of the Optima Heat compound are its enhanced physical properties including resistance to abrasive wear and superior adhesion strength.
The most critical area
Yet another major advantage created by its single-ply construction is splice strength and reliability. The much higher level of splice efficiency created by the use of a finger splice joint means that up to 90% of the belt’s tensile strength is retained whereas a 2-ply step splice only retains a maximum of 50% and a 3-ply step joint only achieves a maximum tensile strength of 67%. Although the belt is lighter, thinner and therefore well suited even for relatively small pulleys and drums, the effect is to create equivalent tensile strengths and belt safety factors that are more than comparable to heavier and thicker 3 or 4-layer conventional belting.