Professional Fluted Core Lifter HQ NQ for Boart Longyear Barrel
1. available in all standard drilling sizes.
2. hardened alloy.
SIZE: BQ NQ HQ PQ NQ3 HQ3 PQ3
TYPE: standard or diamond coated
SHAPE: slotted and fluted
ADVANTAGES: strong grip of rock core and long life span
Drill soft to hard rock, widely used in all kinds of drillings for
prospecting, water and electricity building and construction
industry of road, railway, bridge and building taking out core to
examine stake, etc.
The drilling fluid circuit operates withinthe available annular
areaprovided.More specifically, after travelling through the drill
rods, the fluid enters the core barrel.
There it is channelled between the inner and outer tubes, exiting
via the throat of the diamond bit, and back out between the outer
tube and bore hole wall to the collar .
At the bit end of the inner tube, core lifter case adjustment and
core lifter selection are of great importance. The core lifter case
needs to be placed close enough to the throat of the bit to allow
for efficient core breakage, butundesirable increase in fluid
pressureand/or sample washing from the drilling fluid.
By design, the tapered core lifter slides along the inside of the
core lifter case, wedging and securing itself onto the core during
core recovery and breaking.
NQ Core Lifter
NQ Core Lifter Case
HQ Core Lifter
HQ Core Lifter Case
HQ3 Core Lifter
HQ3 Core Lifter Case
PQ Core Lifter
PQ Core Lifter Case
PQ3 Core Lifter
PQ3 Core Lifter Case