OPERATIONS MANAGEMENT
EQUIPMENT E
KEEPING RUNNING
quipment used in the mining industries is subject to extreme mechanical stresses: it has to operate in challenging climatic
environments, yet has to work reliably with an operational lifespan frequently measured in decades. In many cases the easy-to-reach resources have already been extracted, meaning that today’s equipment is increasingly sophisticated and having to work even harder to reach what is left. Maintenance of equipment is a vital consideration in all areas of the mining industry, where high mechanical stresses and the reliance on ageing equipment can quickly impact on asset availability. T e cost of downtime is considerable, and that of unplanned downtime even more so. Any necessary repairs frequently extend far beyond the single component that failed, with an unexpected failure often being the cause of damage to other components with the machinery, so further increasing costs. It is almost inevitable as part of any component failure that productivity will be compromised – indeed, production could slow signifi cantly or stop altogether until repairs can be made.
Such is the challenge of the
operating environment that preventative maintenance is essential, with sensors now routinely embedded into equipment to fl ag up impending mechanical problems. Even so, unexpected breakdowns are still considered an unfortunate fact of life for many mine operators, which is hardly surprising considering the stresses and strains that mining equipment is subject to.
All of this highlights the requirement
for eff ective repair and support services, not simply as part of a reactive maintenance regime, but as part of a more proactive approach based around the sensor feedback from the devices
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Range of drivetrain products
embedded within critical equipment. Most importantly, these services need to be delivered quickly and effi ciently by companies that have the required expertise, the necessary products and components, and the local presence to be on hand before signifi cant downtime costs are accrued. T e brands within Altra Industrial
Motion off er many critical drivetrain products used within the mining industries, including clutches and brakes, enclosed gearing and geared motors, belted drives, couplings, overload clutches and torque-limiting devices. T ese power transmission products
are designed to provide the highest levels of performance in applications including conveyors, crushers, breakers, hoists, blast hole drills, haul trucks, reclaimers, belt fi lter presses and more. And while OEMs routinely rely on the mining experience and application knowledge of Altra’s engineering teams in the design and manufacture of their mining equipment, so the mine operators rely on the fi rm for repair and support services. T e fi rm’s certifi ed repair and support
services ensure that equipment is maintained to the highest standards to guarantee long-term asset availability. T e company can point to many instances where faulty installation or the use of non- genuine parts has quickly compromised an operation, in some cases causing
considerable damage to other areas of the powertrain.
A good example was the installation of non-genuine replacement friction discs in a large 60in Wichita Standard Ventilated Clutch. Upon machine start-up following the installation, it was discovered that the discs were severely unbalanced, which led to a very high level of vibratory load and subsequent premature tooth failure. Although the machine was stopped almost immediately after installation, unfortunately damage had already been infl icted on the main clutch parts, resulting in unnecessary expense and downtime. T e sophistication of today’s mining equipment makes it impossible for mine operators to maintain systems themselves, and the training requirements for staff to be able to undertake the more critical aspects of maintenance are too onerous to be cost-eff ective. Putting maintenance, repair, refurbishment and replacement of power transmission components, along with their commissioning, in the hands of the manufacturers who know those products inside out makes sound business sense.
Tilman Speer is with Svendborg Brakes.
www.altramotion.com
Tilman Speer examines the challenges facing the mining industry, and highlights the importance of effi cient local support and repair services
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