2" X 72" TECHNIDRILL MODEL 700-72-2-0-25-1 BTA EJECTOR COUNTER ROTATING GUN DRILL: STOCK #12113

Manufacturer

TECHNIDRILL

Stock

12113

Model

2 X 72

Dealer Location

Ohio

Spec Sheet





SERIAL ...................... 7066-02/94
MODEL ....................... 200-72-2-0-25-1
SHOP ORDER NUMBER ........... 7066
SERIES ...................... 200
STROKE ...................... 72"

MAX DIAMETER ................ 2" DIAMETER
MAX LENGTH .................. 72"
AXIS ........................ SINGLE W/MOVEABLE COUNTER ROTATING
BALLSCREW ................... 1.5
FILTER PIPE ................. 5 HP
RECIRC PUMP ................. 3/4 HP
COOLANT PUMP ................ 25 HP
SPINDLE DRIVE ............... ABB 30 HP
SPEED RANGE ................. 150-1500 (3) RANGES
FEED DRIVE .................. 5D 97"/LB
SCREW PITCH ................. .25 
RATIO ....................... 2/1

DOUBLE CHUCK MACHINE ........ YES, POWERED
COUNTER CLOCKWISE TURNING ... YES

"BTA" MACHINE ............... YES
EJECTOR ..................... YES
COOLANT ..................... YES
CHIP CONVEYOR ............... YES
LOGISTIC CONTROL ........... AB SLC500



BTA DRILLING TECHNIQUE:
BTA or STS (single tube system) drilling is a process where the coolant is introduced around the drill tube at the pressure head, and chips are evacuated through the center of the drill. The detachable drill head is comprised of individual carbide inserts and guide pads. Very high penetration rates can be achieved with this system along with good surface finish.

BTA DRILLING VS GUN DRILLING:
BTA drilling can achieve drill feed rates of typically 5-7 times faster than gundrilling at the same diameter, due to the tool
design, more efficient chip exhaust, and machine design and power. BTA drilling machines introduce coolant around the tool head, and evacuate chips through the drill and machine spindle, compared to gundrilling, where coolant is introduced internally and chips exit through an external groove. BTA drilling is effective in holes from 20 – 200 mm [0.80 – 8.00 in], a greater size range than gundrilling
.



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