GT250 - Stoper Drill

The GT250 Stoper Drill (also known as "Perforadora Stoper" in Spanish) (Equivalent to Boart Longyear S250 Stoper Drill) has always been the top choice for miners demanding high performance, exceptional control, and long-lasting reliability. The GT250 stoper drill allows operators to drill vertically upwards while delivering a high penetration rate and strong torque even at low air pressure. The stoper leg has a push button to retract the stoper leg and an adjustable motorcycle feed. The stoper has large contact areas between major cylinder components to reduce impact pressure and increase product life.

Benefits

High penetration rate and strong torque even at low air pressure
Minimum downtime and low maintenance cost
Ergonomic stoper leg controls
Pusher leg controls with push button jackleg retraction
Motorcycle control feed
Available in various configurations – sinker, stoper, and jackleg
Market leader in North & South America
Parts interchangeable with Boart Longyear S250 stoper drill

Specifications

Metric
Imperial

Description	Metric
Weight W/ Leg	45.8 kg
Feed Leg Stroke	787 mm
Length Retracted	1635 mm
Length Extracted	2422 mm
Air consumption@ 6 Bar	83 l/s
Drill Steel Chuck Hex	22x108 mm
Piston diameter	79.4 mm
Stroke length	67.7 mm
Air Hose Connection	25 mm
Water Connection	13 mm
Impact rate (BPM)	2300
Compatible Pusher Legs	A1074

Description	Imperial
Weight W/ Leg	101 lb
Feed Leg Stroke	31 in
Length Retracted	64 in
Length Extracted	95 in
Air consumption@ 6 Bar	180 cfm
Drill Steel Chuck Hex	7/8 x 4 1/4 in
Piston diameter	3.125 in
Stroke length	2.625 in
Air Hose Connection	1 in
Water Connection	1/2 in
Impact rate (BPM)	2300
Compatible Pusher Legs	A1074