Material excavation is the primary activity in surface mining operations; and shovel excavators are the primary production equipment in mining industry. The active population of cable shovels is about 2400 units around the world out of which 1700 are 20mt or larger capacity (http://parkerbaymining.com/mining-equipment/ electric-shovels.htm). Joy Global (P&H), Caterpillar (formerly under Bucyrus...

Equipment specifications tend to quote highest achievable performance; but this specification does not tell the whole story of machine behaviour. In the case of shovels, many criteria are used for selecting new equipment, generally related to capital and operating cost, capacity, digging forces, reach, loading rate, and propel rate. Some are competing objectives, such as high loading capacity a...

We present a micro-robotic system for protein crystal micro-manipulation. The specific task we focus on is the automated crystal mounting for X-ray data collection. The system features a set of newly designed micropositioner endeffectors we call micro-shovels which address some limitations of the traditional cryogenic loops. We have used micro-electrical mechanical system (MEMS) techniques to d...

Mining shovels or excavators are basic equipment designed to dig and load material in surface mines. They are often considered the major material-handling equipment for high-production, low-cost operations (HPLC). The selection of an appropriate shovel for any HPLC operation is of critical importance because the overall production of the mine is measured in terms of material handled by a princi...

Erdenet copper-molybdenum deposit is the biggest one in world and has a significant impact on Mongolian society economy. Today LIEBHERR-994B hydraulic shovels from Germany, electric including EKG-10 EKG-15 Russia operate for mining works, dump truck BelAZ - 75130 used transportation. The causes of shovel downtime are classified as technical, technological, organizational. During study period, 4...

The main objective of this study was to synthesize scientific knowledge in order to characterize Whole Body Vibration (WBV) in open pit mining: sources, measurements methodologies and main effects on health. A review based on PRISMA Statement was done. Inclusion criteria were research on WBV in mining, published after 1990 and written in English. Thirty-three studies were included in the review...