Trends In Maintenance On Mines (November 2017)
Adequate budgets for mine plant maintenance – to ensure minimal downtime and optimal performance – need to be based on a strategic management approach that can balance the mine’s production targets with its maintenance requirements.
According to general manager SA Services at Multotec, Garth Jones, this balance is mainly about the relative authority of the production and maintenance functions within an organisation.
“Where the power is unbalanced, and financial decisions unduly favour the production side of the business – to the detriment of the maintenance imperatives – then this can often spell trouble for the life-span and reliability of plant and equipment,” says Jones. “The situation can be exacerbated by short-term financial incentives that prioritise higher production, and have the unintended side-effect of restricting budget to vital maintenance functions; where this happens, the operation will definitely suffer in the long-term.”
He acknowledges that there is huge pressure on mines in terms of operational budgets, and says this has put a particular strain on maintenance activities – as these are often seen as the “low-hanging fruit” when mines have to cut costs.
“It’s important that decision-makers understand the importance of still allocating enough to the maintenance budget, to protect their assets for the long term while at the same time maintaining current production capacity and efficiency,” he says.
Larger, blue-chip customers tend to manage the balance better, having the benefit of a longer-term outlook and often greater financial resources. With the cut-backs in capital expenditure budgets due to industry uncertainties and low commodity prices – which restricts the purchase of new equipment – there has been a renewed focus on maintaining older plant as an alternative to replacing these units. Jones says a closer relationship with the original equipment manufacturer (OEM) is the way to achieve the best results from such a focus.
“The prudent approach for most mines is to make use of a ‘package’ arrangement with the OEM, which includes the whole product life-cycle from the concept and design, to the testing, commissioning, maintenance and refurbishment,” he says. “The involvement of the OEM throughout the product life-cycle is critical to achieving the lowest possible costs of ownership. To let go of the OEM and rely on sources that are not sustainable, can be suicide.”
In addition to keeping to keeping equipment running in line with OEM specifications and standards, he highlights the value of the continuous improvement – where even existing plant can be regularly upgraded to become more productive over its life-span. OEMs are always developing their equipment’s capacity and economy over time, based on their substantial research and development efforts which track and leverage the performance of their global installed base of units.
“The innovation and advancement of our products – especially in these days of fast-moving technological change – makes it almost impossible for mines to keep their in-house expertise up to speed with the evolving maintenance requirements of their range of various plant,” says Jones. “In fact, it doesn’t really even make sense for them to try to do this. Rather, it is more realistic and more cost-effective to rely on the experience of the OEM, who has developed decades of best practice in the application of their products over a global installation base.”
As most end-users work in relative isolation of each other, they tend to see only what is done within the business, and may miss out on the experience of other users. This broader experience, when shared by the OEM among its customers, translates into cost-savings and operational efficiencies – as well as quicker problem-solving at site level.
“Nine times out of ten, the challenges that customers face with their plants have been encountered before by someone else,” he says. “The solution has usually already been applied by the OEM at another customer, so there is no need to re-invent the wheel.”