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MacLean Engineering
MDA Excavator Rock Drills
Data:
Unit Specifications
| Unit | MDA-8 | MDA-12 |
| Drill Steel Capacity |
8 Foot Drill Steel 1” Hex x 4.25” Shank – R25 |
12 Foot Drill Steel 1” Hex x 4.25” Shank – R25 |
| Drill Saddle Travel | 2.3M (90”) | 3.5M (138”) |
| Drill Hole Diameter | 33mm to 51mm (1.375 to 2”) | 33mm to 51mm (1.375 to 2”) |
| Drifter Make | Joy AL67 | Joy AL67 |
| Air Requirements | 225CFM @90psi | 225CFM @90psi |
| Hydraulic Requirements | 2-4GPM @ 3600psi | 2-4GPM @ 3600psi |
| Electric Requirements | 12v @ 2 amperes | 12v @ 2 amperes |
| Approx. Weight | 295kgs (650lbs) | 330kgs (725lbs) |
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