Dear Ganesh,

In the USA, and in recent years some other markets, the US Flex style single ply and duel ply belts have been used successfully in various applications.

In the last two years there has been renewed interest in single ply belts reinforced with aramid (Kevlar from Dupont). There have been a handful of these single ply belts installed in Chile, the US and Europe.

The historic difficulty with all single ply (and duel ply) belts has been the splice joining the belt together. The advances in the technology relating to finger splicing in the last 12 years has made these splices much stronger and more reliable.

A single ply belt has the possibility of being thinner, lighter and cheaper.

Best regards,

Andrew Hustrulid

Originally Posted by sganesh

Dear Experts,

Single ply conveyor belts manufacturers are stating many advantages of those belts than multiple fabric belts. But the population of single conveyor belts is much, much less than those of multiple fabric belts. If you know the reasons, kindly post them.



Thanks & Regards,

■

Originally Posted by ahustrulid

Dear Ganesh,

In the USA, and in recent years some other markets, the US Flex style single ply and duel ply belts have been used successfully in various applications.

In the last two years there has been renewed interest in single ply belts reinforced with aramid (Kevlar from Dupont). There have been a handful of these single ply belts installed in Chile, the US and Europe.

The historic difficulty with all single ply (and duel ply) belts has been the splice joining the belt together. The advances in the technology relating to finger splicing in the last 12 years has made these splices much stronger and more reliable.

A single ply belt has the possibility of being thinner, lighter and cheaper.

Best regards,

Andrew Hustrulid

Single ply belting--before putting in to use, review the joint, Joint must be 100% efficient.

Also if profile requires vertical curves, the radius at the start of conveyor required will be large, if variable speed drives are not used. Being light when not loaded, defend it from wind loads by enclosing the conveyor. ■

Originally Posted by Subash Chander

Single ply belting--before putting in to use, review the joint, Joint must be 100% efficient.

Also if profile requires vertical curves, the radius at the start of conveyor required will be large, if variable speed drives are not used. Being light when not loaded, defend it from wind loads by enclosing the conveyor.

Surely any belt needs wind protection in windy conditions. Simplistically, if wind is a frequent problem then a designer will reasonably choose the heaviest belt he can: which is possibly the reasonable answer to the question posed.

During the mid-1980's one of my colleagues was a proponent of Kevlar belts on bucket wheel booms because they were friendly to overband magnets while still having a generous modulus.

We work in a very constrained commercial environment and "A single ply belt has the possibility of being thinner, lighter and cheaper." says a lot. If the belts were 'free issue' then single ply might seem the way to go but since most belts these days are specified by a main contractor who is bound by profit margins it is easy to see that single ply belts will take a back seat.

You can prove anything these days. Australian Fire Fighting Regulations can be developed to prove that heavy fuel oil is not flammable and they're not alone. This must be of great comfort to those working with the stuff. Never take a 2-faced main contractor at face value! ■