LOST production is a major direct cost that quarries and mines contend with when a conveyor system goes down. Some of the most common conveyor issues include belt misalignment, material carryback and rip events, amongst others. Drawing on decades of field experience, Tru-Trac’s Douglas van der Westhuizen and Guy Fitt have outlined some of the best-practice maintenance approaches to keeping conveyors at peak performance.

One of the most common causes of unscheduled downtime on conveyor systems is belt misalignment which often results in spillage, belt edge damage, damage to the structure, increased power consumption and increased labour costs. According to Mr Fitt, national sales manager at Tru-Trac, a specialist provider of conveyor components for the global mining and bulk material handling industries, misaligned belts will ultimately result in lost production, increased operating costs and safety hazards.

Mr van der Westhuizen, technical sales representative at Tru-Trac, said misaligned belts can also result in environmental issues by increasing material spillage and dust generation which can contaminate nearby ecosystems and water sources, lead to regulatory non-compliance and negatively affect the health of both workers and nearby communities.

‘Apart from belt misalignment, carryback is another common enemy in conveyor systems. Carryback directly reduces conveyor productivity by creating unscheduled downtime for cleanup, degrading components such as rollers and pulleys and causing material loss, leading to belt tracking issues that necessitate further maintenance. Carryback represents loss of product, which, over time, can add up to significant financial costs, especially in systems handling large volumes,' said Mr Fitt.

Commenting on some of the best-practice maintenance approaches to keeping conveyors at peak performance, Mr Fitt remarked that continuous inspection is one of the principal approaches to making sure that conveyor systems function optimally. With this approach, minor issues are identified early on before they escalate into major problems that lead to unexpected breakdowns. This minimises unplanned interruptions, ensuring that material transport is uninterrupted and production schedules are maintained.

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