Test Results

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Test 1
Project:
Nature of rock:
Drill rig model:
Specifications of test product:
Total drilled depth:
Depth of single hole:
Customer feedback:
Iron ore exploitation
Iron Ore – medium-hard rock
Atlas Copco Boomer281
Thread button bit: 45mm-R32 (semi-ballistic)
400m
3m
Kemaico drill bit drilled about 400m deep at this test. For the first 30 holes, the average time was 2.5min/hole, it slowed down after drilled 30 holes and the average time was 3.83min/hole. The product quality is pretty good.

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Test 2
Project:
Nature of rock:
Drill rig model:
Specifications of test product:
Total drilled depth:
Depth of single hole:
Customer feedback:
Iron ore exploitation
Iron Ore – Hard rock
Atlas Copco Boomer281
Thread button bit: 45mm-R32 (ballistic)
189m
3m
We have tested the Kemaico drill bit which has been modified. The size of buttons was changed. From the result of this testing, the speed is faster and the life time is longer for the modified R32:45mm drill bit. It reduced costs of drilling to some extent.

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Test 3
Project:
Nature of rock:
Drill rig model:
Specification of test product:
Total drilled depth:
Depth of single hole:
Customer feedback:
Construction engineering
Basalt ÔÇô hard rock
Atlas Copco Boomer3D
Thread button bit 57mm-R32 (semispherical)
430m
5m
We intended to drill 400m. Through testing of Kemaico drill bit, we were very satisfied with the result as it drilled about 430m.

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Test 4
Project:
Drill rig model:
Specification of test product:
Total drilled depth:
Depth of single hole:
Customer feedback:
Hydropower station
Atlas Copco Boomer3D
Thread button bit 64mm-R32 (semispherical)
510m
6m
We drilled around 510m with Kemaico drill bits. The testing result revealed that the drill bit was more efficient and had longer life time than what we expected. We will keep a long-term cooperation.

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