MTI Mining Technologies

Blast Hole

Swivel Mount Shock Sub®
The Swivel Mount Shock Sub®, a resilient coupling used between the drill and the drill pipe on top-drive machines, is designed to reduce both axial and torsional vibration and effectively dampen the shock loads created by the action of the bit. Benefits include increased penetration rate, bit life, and availability of equipment while reducing drill maintenance costs and noise levels.
Blast Hole
MTI has designed and introduced a variety of rotary blast hole tools to meet the increasing needs of the customer. The concept of Swivel to Bit engineering and manufacturing can be observed in the following tools:
 
Drill Steel
Both fabricated and integral designs are tailored to the particular drill and drilling conditions. Heavy wall construction results in longer life and less cost. Hard-facing can be applied to critical wear areas.
 
Rotary Deck Bushings
MTI Rotary Deck Bushings give you top performance and value. This results in less rig maintenance, more drilling production and lowered operation costs. MTI Rotary Deck Bushings are engineered tough to be the best, far outlasting conventional or other type roller bushings. The MTI Rotary Deck Bushing is designed to rotate with the drill steel on Heavy Duty Roller Bearings. This rotation reduces wear on the drill steel and the bushing itself. MTI Rotary Deck Bushings are engineered tough to withstand the most harsh drilling conditions.  The advantage of MTI bushings becomes apparent with extended steel life, reduced drill vibration, added steel support at table (reduced friction), and extended bushing life.
 
Stabilizers
The 63-B and welded blade types lead a complete line of Blast Hole Stabilizers offered by MTI. Pages 5-6 provide some guidelines in the selection of the type best suited to your operation.