12 Test results show that Epsilon 2 provides up to 61 percent more drill meters on average before discard than a standard bit. The chart shows the location of the sites used for testing. * Average of six measurements, the highest of which was a 42 percent improvement as shown in the test case on page 13. Proven performance Epsilon 2 has been put to the test in numerous drill tests. Before launch, we tested hundreds of bits across the globe in collaboration with selected customers. The tests were made independently and offer strong evidence of the new bit’s superior performance. See for yourself! Canada Copper mine USA 1 Iron ore mine Chile 1 Copper mine Chile 2 Copper mine USA 2 Coal mine Indonesia 1 Coal mine Indonesia 2 Coal mine 1427 1202 2330 3959 1960 1262 2348 1564 7385 3526 7776 6000 12300 9200 Drill meters Standard bit avg Epsilon2 avg 13000 12000 11000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 61% more drill meters on average Up to 12 *
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Epsilon2 customer cases - Epiroc...A conventional open pit, truck and shovel operation. The mine has a 40 kiloton per day plant that utilizes a conventional crushing, grinding and
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12
Test results show that Epsilon2 provides up to 61 percent more drill meters on average before discard than a standard bit. The chart shows the location of the sites used for testing.
* Average of six measurements, the highest of which was a 42 percent improvement as shown in the test case on page 13.
Proven performanceEpsilon2 has been put to the test in numerous drill tests. Before launch, we tested hundreds of bits across the globe in collaboration with selected customers. The tests were made independently and offer strong evidence of the new bit’s superior performance. See for yourself!
Zinkgruvan
BA 87
Sweden
Zinkgruvan
BA 91
Sweden
B Penon
Chile
North Mine
Canada
Fraser Mine
Canada
Golden Grove
Austratia
Orivesi
Finland
Laisvall
Sweden
MeterR 32SR 35 Powerbit
4 500
4 000
3 500
3 000
2 500
2 000
1 500
1 000
500
0
Canada
Copper mine
USA 1
Iron ore mine
Chile 1
Copper mine
Chile 2
Copper mine
USA 2
Coal mine
Indonesia 1
Coal mine
Indonesia 2
Coal mine
1427
1202
2330
3959
1960
1262
2348
1564
7385
3526
7776
6000
12300
9200
Drill metersStandard bit avgEpsilon2 avg
13000
12000
11000
10000
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
20.5%faster
penetration rate
Up to Up to
Up to
42%longer
distance drilled
180 m
150
200
100
150
175
75
20%longer
grinding interval
109%longer
distance drilled
61%more drill meters on average
Up to
12
*
13
CanadaSite characteristics A conventional open pit, truck and shovel operation. The mine has a 40 kiloton per day plant that utilizes a conventional crushing, grinding and flotation circuit to produce copper concentrates, with silver and gold credits.
MethodVarious designs were tested with variations in the Epsilon2 feature, including nozzle position, air-water separation and Enduro premium carbide inserts. Six test sets were made to measure distance drilled and penetration rate improvements compared to a standard bit.
ResultsRate of penetration: up to 20.5 percent faster
Distance drilled: up to 42 percent longer
The rate of penetration was up to 20.5 percent faster with Epsilon2 than with a standard tricone bit.
The distance drilled was up to 42 percent longer with Epsilon2 than with a standard tricone bit.
The average distance drilled was up to 109 percent longer with Epsilon2 than with a standard tricone air bearing bit design.
USASite characteristics Testing was made in different Appalachian coal mines, allowing us to get feedback from several customers. The geological and operational conditions in the mountainous region are highly varied. Despite these differences – and other large variations such as a mix of old and newer rigs and different bench patterns – customers request to use only one robust, universal bit.
MethodNumerous Epsilon2 tests were made, using mainly mid-range DML and DM-45 drill rigs. As one of the most commonly used dimensions in the region, the 6-3/4 inch Epsilon2 bit was selected for testing and comparison with a standard air bearing bit.