Weekly inspection schedules all on heavy mining equipment is an essential part of the overall Mining Engineering maintenance needs of imperative and very costly mining machinery.
The particular focus of these inspections is always on those key high stress parts and areas of the machines having a history for stress and fatigue fractures.
Repairs or refurbishment of a stressed or cracked part are always easier to do to complete the earlier the issue is perceived.
Mining Industry Case in Point:
A 390 ton Terex RH170 excavator on-site at a coal mine goes through is usual weekly maintenance inspection and is discovered to possess a clear stress fracture in the vital H-link. The machine is immediately taken off line. Every hour of down time is money lost for the mining company.
The engineering team are called out to the mine to evaluate the problem and get on with the business of getting the machine back on line as fast as possible. The 5 man Mining Engineering Fast Reply Team have the fractured 2.4 ton H-link removed from the machine and a replacement fitted to the manufacturers spec is five hours flat.
The machine is re-certified and back on line within 6 hours of the team arriving on site. But that is the simple part. The Broke 2.4ton H-Link is loaded and transported back to the workshop facility where the team do an exhaustive inspection on the fracture and confirm the best plan of action to mend and refurbish the H-link.
Backed by years of experience the mining engineering team is well versed in what must be done to mend the cast and grade steel H-link. Though this 2.4 tonne part is sizable, the team have at their disposal a substantial range of heavy lift apparatus and all of the necessary tools to get the job done fast effectively and safely.
A firmly established and step by step process of cleaning, grinding, pre-heating and air ark gouging lays bare the splinters and prepares them for the all important cross and blend 81NI Mig welding that will not only fix the fractures but will really reinforce what are understood to be weak or potential failure areas.
Engineering a world’s best practice mend on this urgent piece of hardware requires both the skill and focus of the mining engineer and the adherence to a very technical process of preheating, gouging, run off plates, grinding and layering of the 81NI Mig welds.
The final result’s a completely refurbished H-link that is totally corrected, cleaned, repainted, re-certified and returned to the mining company prepared to be swapped out to another machine if the eventuality pop up.
The 24/7 Engineering Fast Reply Team members pride themselves on providing mining engineering services that get high worth mining machines back on line in the shortest possible time, making sure any down time and successive loss of income to the mine is keep to an absolute minimum.
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