Cat R1700 Underground Loader to Boost Productivity at Dargues
July 25, 2019
CAT R1700 loader, Innovation, Mining, Underground Mining
Improved productivity has been a key driver in the PYBAR decision to introduce the Cat® R1700 underground loader to its operations at Dargues Gold Mine in late 2019 / early 2020. Performance trials at the Vivien Gold Mine last year, measuring the R1700 against the R1700G highlighted positive productivity trends.
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Trials
conducted on the Cat® underground loaders at Vivien Gold Mine in June last year
focused on performance, weight and volume with key aspects analysed being
payload and productivity, cycle times and fuel burn.
Pile times and the number of passes to get an
adequate bucket fill factor to optimise productivity were compared
and analysed, and comparisons were made between average payloads, the number of
passes into each truck, and truck load time.
Productivity
data was gathered by weighing each individual truck and averaging the R1700 and
R1700G payloads by the number of passes. On average, the R1700 was more
productive with an average bucket load of 12.08 tonne versus the 9.08 tonne of
the R1700G.
The
R1700 also delivered higher average payloads being brought to the surface with
an average payload of 38.26 tonne versus 36.18 tonne for the R1700G.
“Observations
and data gathered show that the R1700 is a more productive machine,” said PYBAR
Chief Services Officer, Andrew Rouse.
“It
can load the bucket efficiently with minimum rehandle and also has less tyre
spin when loading with the help of traction control”.
Some comparisons between the two loaders:
- The R1700 averaged 3 minutes 46 seconds in a full loading cycle, 1 minute 26 seconds (33%) less than the R1700G
- The R1700 took an average 29 seconds to load a bucket, 19 seconds (40%) less than the R1700G
- The R1700 loaded 12.8 tonnes per bucket of ore, 3.7 tonnes (29%) more than the R1700G
- The R1700 bucket fill factor for ore of 64%, 10% more than the R1700G; and
- The R1700 bucket fill factor for waste was 69%, 8% more than the R1700G.