Dear Mr.Mahmud,

Belts are usually inspected at the belt manufacturer's labs. They will be having facilities for the various tests need to be carried out like tensile strength, ply adhesion strength, wear resistance etc.,

Do your belt "distributor" have those facilities?

Regards, ■

As the previous contributors have reiterated, the belt manufacturer supplies the belt specifications and in most cases will even roll the belt to the direction you require for installing into your system. The belt also now usually comes with top cover stamp every 10 or 5 metres in the edge section with basic belt construction information along with the 'Arrow' showing the direction of manufacture and travel in the system. Many belts now also come with electronic 'RFID' Tags for computer monitoring.

From your post, it reads that you intend joining different manufacturer or belt characteristics together. Please read the following for your own safety.

I would suggest that the belt be from the same belt specifications, ie: Same Ep rating, Warp & Weft criteria and Ply and cover thicknesses numbers. If you intend to join belt with differing characteristics into a single flight conveyor, please be aware that your loop take up and belt tension is or will be constrained by the lowest strength piece of belt. This could have the loop take up (LTU) or gravity take up (GTU) loading and unloading line tension and if the LTU is a mobile / traveling, then the mobile carriage could contact the stop limits with devastating results. I have had to audit a number of conveyors for different clients due to what you appear to be contemplating and the damage was much greater than $100,000.00 or more category of structural damages. ■

When we order large quantities of belting besides the width, rubber compound, Carcass type and carcass specification we specify the length of each roll, the maximum weight of each roll and/or the diameter of each roll (critical if going underground).

The manufacturer should be identifying each roll with the width, rubber compound, carcass specification and weight written on each roll or in a document envelope attached to the roll. You can ask the manufacturer for production certification reports for them to prove you are getting what you have ordered.

You are the buyer and you need to be in control of what you are buying. ■