Category: Line Boring

Hydraulic drive pumps for in-situ line boring and surface facing have historically been heavy for operators to handle and lacked control and power at low cutting speeds. AVS Engineering, in Bellevue WA, has recently released a brand-new innovation in this area – a servo controlled hydraulic pump. The new pump is the result of extensive design, development and testing in WA by industrial automation engineer, Morne Grundling, and was initiated by AVS Engineering’s need for more consistency and control in their own jobs on mine sites across the state.  The final product developed is now available for sale through AVS Engineering, to other onsite machining companies and the word is spreading fast. Conventional ‘Wisdom’ Conventional hydraulic pump controllers for these…

The process of line boring takes a considerable amount of time, which will depend on the size of the job and the wear on the bore: but what is true across all line boring work is that it is a meticulous process that requires sustained concentration, exact measurement, and plenty of time to get things right. But that’s no problem for Queensland-based TE Line Boring, which employs an efficient system of simultaneous welding and machining to effectively work on multiple bores at the same time. And according to TE Line Boring founder and chief operator Tyne Carlin, this is a core feature of his business. “Say I’m working on a dump truck tray, for example, and the bores are 3m…

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…

Hydraulic drive pumps for insitu line boring and surface facing have historically been heavy for operators to handle and lacked control and power at low cutting speeds.  AVS Engineering, in Bellevue WA, has recently released a brand new innovation in this area – a DC servo controlled hydraulic pump. The new pump is the result of extensive design, development and testing in WA and is based on AVS’s need for more consistency and control in their own jobs on mine sites across the state.  The product they have developed is now available for sale to other onsite machining companies. Conventional hydraulic pump controllers for these applications regulate cutting speed by restricting the flow of fluid to the pump.  This creates…

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…