Tel: +(61)2 8987 1922
Hot Vulcanised lagging application involves the chemical cross-linking of five reactive layers during the autoclave curing process. To achieve the
In November 2017 a major iron ore port facility in the Pilbara decided to replace the ceramic lagging on a
Spare pulleys are held so that in the event that an operational pulley requires replacement this can be done quickly
Catastrophic lagging failure due to debonding occurred within two weeks of installation and operation of the pulley, resulting in a
Lagging can be of good quality and application can be correct, but lagging can still fail and does. Everything seems right but the lagging still doesn’t perform to expectations. So why does this happen? It’s because the lagging selection is not right for the application.
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.
Adhesion to metal surfaces is dependent on having surface preparation that allows the bonding system to obtain a strong chemical and physical attachment. Metal surfaces are blasted to increase surface area with a surface pro le of 50-100um giving a good base for adhesion. After sandblasting, surface profile on pulley shell need to be measured using a digital surface profile gauge and results should be recorded.
Bonding at the primer/metal interface is by chemi-adsorption of the primer onto the steel surface. Shot blasting of the steel pulley shell improves adhesion by the following mechanisms:
This is the most accurate way to measure and average the Profile height
The special stepped foot and 30deg sharp needle ensures measurements meet the requirements of Australian Standard 3894.5-2002 (Surface Profile), and as far as we can ascertain it is the only gauge available which complies with the requirements of this Australia Standard. Design of the unit permits accuracies equivalent to an electronic surface trace.
METAL PREPARATION recommendation for best adhesion requires 50-100um surface roughness
PCWI DIGITAL SURFACE PROFILE GAUGEDigital Metric/Imperial Surface Profile Needle Gauge. Also a Pit & Crack Depth Gauge.
If you work in the mining industry, involved in conveyor maintenance, pulley manufacturing, conveyor design and conveyor maintenance, then, we would like to work with you to bring engineered pulley lagging solutions to the industry.
161 Somersby Falls Rd, Somersby NSW 2250 Australia
+ (61) 2 8987 email@example.com