Hot Vulcanised Lagging Application 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. Save as PDF Read More >> March 30, 2020
Iron Ore Port Facility High Tension Bend Pulley – Elastotec Polyurethane Lagging 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. Save as PDF Read More >> November 1, 2019
Spare Pulleys – Hot Vulcanised vs Cold Bonded Lagging 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: Save as PDF Read More >> November 1, 2019
Consequences of Catastrophic Failure with Cold Bonded Lagging for New Mining Projects Catastrophic lagging failure due to debonding occurred within two weeks of installation and operation of the pulley, resulting in a shutdown of production, and necessitated a replacement of the pulley. Within only two weeks of service, this ceramic lagging was already experiencing loss of the ceramic tiles. Save as PDF Read More >> May 16, 2019
Ceramic Lagging Tile Loss – Causes and Prevention Ceramic lagging is chosen for pulleys where a long trouble free service life is required to ensure that the conveyor is operational when required and Save as PDF Read More >> January 18, 2019
The importance of good metal preparation to good lagging adhesion Poor metal surface preparation Note uneven finish and the presence of machining marks – no evidence of grit blasting. The results of poor metal surface Save as PDF Read More >> November 9, 2018
Curragh coal mine – improved service life of conveyor pulleys The Curragh Coal Mine is an open cut coal mine located near Blackwater in Central Queensland, Australia. The mine supplies high quality, low ash coking coal and has reserves of approximately 90 million tonnes which is amongst the largest in the world. Coal from Curragh is shipped via the Blackwater rail system to the Port of Gladstone for export. Curragh Coal mine is owned by the Coronado Coal Group a US based company. Save as PDF Read More >> October 31, 2018
Oyu Tolgoi High Tension Bend Pulleys – Improved Performance Oyu Tolgoi is a large copper mine that has both open-cut and underground operations and has been operating since 2013. The mine is jointly owned by the Mongolian government and Rio Tinto and is located in the South Gobi Desert. Once fully operational, the mine is expected to produce 450,000 tonnes of copper annually. Save as PDF Read More >> July 16, 2018
How to Maximise Your Pulley Lagging Service Life: Hot Vulcanised vs Cold Vulcanised Application Overview Mining technology is rapidly evolving to meet the challenges of extracting minerals in remote locations, often with extremes of weather and often from ore Save as PDF Read More >> January 19, 2018
New Technology Extends Service Life of Non Drive Pulleys and Protects the Conveyor Belt Mining is an industry where reliability is crucial and unplanned down time can result in millions of dollars lost over a single day. Pulleys are Save as PDF Read More >> January 12, 2018
