Debonding of Ceramic Lagging
Debonding of Ceramic Lagging Ceramic lagging has traditionally been applied to pulleys using two-part neoprene contact cements in a process generally known as ‘cold bonding’. Although this is a convenient system there are a number of limitations that can adversely impact the reliability and service life of the ceramic lagging, including: Bond strength between the […]
Fully Vulcanised Joints – No Weak Points For Water Penetration
Fully Vulcanised Joints – No Weak Points For Water Penetration Cold Vulcanised Ceramic Lagging (CVCL) joints are a known weak point that allows water ingress and leads to corrosion of the pulley shell and eventually debonding of the lagging at this point. In wet conditions the rotation of the pulley under load generates a pumping […]
Ceramic Lagging causes of failure
Increased Adhesion to the Pulley Shell A significant cause of ceramic lagging failure is lifting of the lagging edge due to corrosion occuring at the lagging pulley interface. This is more likely to occur in pulleys operating in wet environments and is mainly seen on Cold Vulcanised Ceramic Lagging (CVCL) applications. The cause is the […]
Minimise belt cover wear
Lagging Design Engineered To Allow Ceramic Tiles To Move Under Load And Minimise Slippage / Belt Cover Wear Belt cover wear occurs when there is slippage between the lagging and the conveyor belt. When ceramic drive lagging is used and there is slippage the wear occurs in the rubber belt cover as this is the […]
Increased fracture toughness
Increased fracture toughness Design engineered to provide cushioning from impact Ceramic Tile Cracking/Breakage Tile cracking leads to tile loss and may lead to premature failure of the ceramic lagging, with a number of causes leading to this issue: Lagging design that has the ceramic tiles butted up against one another can result in cracking from […]
Optimising Conveyor Design Using Lagging Select™ Engineering Tool
Better Lagging Selection Starts with Better Engineering Training Is your engineering team equipped to optimise conveyor design for maximum reliability and cost efficiency? Elastotec’s “Optimising Conveyor Design Using Lagging Select™ training course empowers engineers to: ✅ Design smarter – Understand the critical interaction between pulley lagging and conveyor belts to prevent common failures ✅ Improve safety […]
Elastotec: Reducing Downtime and Increasing Productivity in Mining
The main challenges of pulleys in contact with the carry side of the belt In conveyor systems, pulleys play a critical role in ensuring smooth operation, proper belt tracking, and effective material transportation. Among these, pulleys that come into contact with the carry side of the belt—often referred to as the “dirty side”—face unique and […]
Elastotec Lagging – Hot Vulcanised Ceramic Lagging
A large bauxite mine in Australia, running an overland conveyor with an ST3600 belt, 1050mm wide, has successfully introduced Elastotec Hot Vulcanised Ceramic Pulley Lagging to one of its sites.
Pulley Lagging and Belt Interaction for Power Transmission and Service Life
Conveyor drives and drive pulleys are a key part of the conveyor system, providing the power transmission required to move material. Engineers rely on guidelines from the Conveyor Equipment Manufacturers Association (CEMA) to design these drive systems effectively, employing mathematical techniques like Euler’s equation. However, while this approach focuses on preventing loss of traction, it overlooks potential wear and tear on critical components like the belt and pulley lagging. This paper aims to describe this issue, highlighting the need for a balanced approach that considers both loss of traction and localized slip which can result in wear and damage.
Conveyor Belt Bottom Cover Failure From Idlers and Pulleys
Excessive wear on the belt bottom cover resulting from improper idler arrangement and ceramic pulley lagging can lead to early belt failure and unplanned downtime. This paper discusses several failure modes and related field examples.