Jumbo_Drill_Specifications.docx

Our requirements for the jumbo drill are the following…

1) Prior to the award, the vendor must demonstrate operation of the jumbo drill in the presence of the buyer. This includes but is not limited to, tramming and the drilling of holes into rock, e.g., concrete, sandstone, limestone, granite.

2) Prior to delivery, the vendor must be willing to demonstrate operation of the jumbo drill in the presence of the buyer. This includes but is not limited to, tramming and the drilling of holes into media. This is to ensure that minor problems with the drill, such as the replacement of worn parts, painting, fixing of dents, etc., have been addressed to the satisfaction of the buyer.

3) A major manufacturer, Atlas Copco or Sandvik preferred. Necessary for equipment servicing after purchase.

4) A design that’s relatively current so that it can be considered representative of what’s used today.

5) Single or double boom.

6) A top-hammer type drifter.

7) No cab.

8) Used underground in metal, non-metal or stone mines.

9) Used for production or development purposes.

10) Rock drilling power should be electric.

11) Drive power should be diesel.

12) Length must be less than 45’ with boom fully extended.

13) Flushing method should be water.

14) Electrical system voltage should be 480 Volts.

15) Carriage type should be wheeled.

16) CAD drawings of the drill to facilitate modeling and simulations of noise emissions (if available).

17) A used jumbo drill, new drills exceed budget restraints.