Payment & Shipping Terms:
|Spindle Rotational Speed:||≥1200rpm||Torque:||400rpm2.6:1≥600Nm|
|Axial Pushing Force:||>42kN||Axial Pulling Force:||>54kN|
atlas copco drill rigs,
underground drilling equipment
HQ300, NQ 400m Hydraulic Underground Core Drill Rig for Mineral Exploration
Our hydraulic underground core drill rig has fast drilling speed, and it can drilling holes from any angle in work tunnel by column, has best applicability. The oil pump drive the motor to rotate, hydraulic cylinder working without turret.
|Drilling Depth(m)||Drilling Dia.(mm)||Rod Dia.(mm)|
|Hydraulic working pressure||23Mpa|
|Drilling angle||0-360 degree|
|Electric motor power||75Kw|
|Rated pressure of main pump||31.5Mpa|
|Rated pressure of auxiliary pump||20Mpa|
Main machine body:2650*620*1650mm
|Weight||2000kg(main machine body 1300kg; power engine 1080kg; operation panel 80kg)|
The power unit is mounted on a mounted frame, which is easy to move, and can leave a distance with the main body when it is working.
The power unit has a high power electric motor, double hydraulic pumps (The primary one to serve the rotation unit and the accessorial one is for the feed oil cylinder), hydraulic box, and filter, handle pump, oil condenser, electric control box.
Gripping action of the rod holder is synchronized with the hydraulic chuck.
The device insurance the gripping actions is mechanically but loosen ones is hydraulically.
The main advantages with this design is that the rod holder will never loosen its grip on the drilling string—even in case of the oil pressure should drop unexpectedly, and guarantee the safety of drilling upward as well.
Contact Person: Branda