
Hot vulcanised v’s cold bonded lagging
The Elastotec aim is no pulley failures due to inadequate pulley lagging. Compare the difference between cold bonded and hot vulcanised lagging to see that hot vulcanised lagging is A GOOD BUSINESS DECISION.



The Elastotec aim is no pulley failures due to inadequate pulley lagging. Compare the difference between cold bonded and hot vulcanised lagging to see that hot vulcanised lagging is A GOOD BUSINESS DECISION.

Elastotec extreme diamond rubber lagging is designed for drive and non drive pulleys that require extended service life.

At Elastotec, we engineer lagging solutions that keep conveyors running. Here are some causes of lagging failure.

Elastotec Direct Bond Ceramic Lagging – application system designed to improve adhesion consistency, reduce lead times, reduce glue wastage and labour time.

Hot Vulcanised lagging application involves the chemical cross-linking of five reactive layers during the autoclave curing process. To achieve the desired 100% rubber tear adhesion all five layers must crosslink at the same time. Occasionally conditions can be created in the autoclave that prevent this happening, and result in non-uniform adhesion around the pulley circumference. This bulletin explains how these conditions occur and what needs to be done to eliminate this problem.

Magnefast Diverter Flap Installation in a coal prep plant trouser chute

In November 2017 a major iron ore port facility in the Pilbara decided to replace the ceramic lagging on a high tension bend pulley – the ceramic lagging had suffered physical damage on one edge that had exposed the pulley shell. With a capacity of around 180 million tonnes/annum of iron ore the port operates 24/7 year round and so reliability of the conveyor system is critical to achieving the maximum ore through put.
Spare pulleys are held so that in the event that an operational pulley requires replacement this can be done quickly and efficiently at the timing dictated by the mine maintenance personnel. The reason for changing a pulley broadly falls into two categories:

Our dedicated teams in Australia and Vietnam working really hard to understand lagging performance, and to engineer solutions that provide the longest possible lagging service life under all conditions.
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