Tag: Line Boring

The beauty of engineering is its design and construct tools and equipment to increase the volume and efficiency of human endeavours.  The mighty haul truck is an iconic example, able to move more material in one load than over 8000 workers with buckets. However, machines might make light of the toughest work but they also wear out and require regular repairs and maintenance to keep them operating shift after shift.  Our current line boring technical feature covers an important area of maintenance, where the pin bores of almost every hydraulically operated machine must eventually be bored back to round, reclaimed with weld and machined back to a tight OEM tolerance – all while remaining in perfect alignment with all the...

In the mining industry, line boring is an essential part of machinery upkeep. Every large machine that mine operators depend on, from dozers to excavators, haul trucks to cranes, will require a pin bore refurbishment during its life cycle. The process involves the use of specialised rotary welders and line boring machines which restore worn or oval pin bores to a perfectly circular shape before this oversized hole is then reclaimed with weld before being machined to OEM specifications. AMR spoke to line boring specialists, Austin Engineering, about what goes on in the line boring process – both in-house and onsite. Near and Far Austin Engineering, founded in 1982 with a national and international reach, offers its customers line boring...

Imagine having to machine a bucket wheel excavator so big it needed to have the surrounding shed walls torn down to move it for servicing. But that sort of task is all in a day’s work for Victoria-based rotary welding and line boring specialist Metro Machining, a small engineering company that has earned a big reputation. Bucket wheels combine robustness with outstanding speed and high throughputs and are used worldwide in the handling of bulk materials such as coal, iron ore, petroleum coke, limestone, bauxite, lignite, phosphate, and other kinds of ore. These excavators are the largest machines found on mine sites, and it’s no surprise that one of them is the largest land vehicle built in human history, measuring...