BQ head assembly is the main part of BQ core barrel. BQ head assembly is used together with BQ inner tube, BQ stop ring, BQ core lifter, BQ core lifter case. They compose the BQ inner tube assembly. When using the B size wireline drilling, we do not have to remove the entire B size drill string to get the core sample from the bottom of the hole. We just need to lift the BQ inner tube assembly. It is the great advantage compare to conventional drilling.

BQ HEAD ASSEMBLY, BQ LINK LATCH HEAD ASSEMBLY

NOTE:

     *BQ MKII spearhead assembly(C5008323,C500816,C5007947,C3547002,C5008168,C5003192) is also available

REFERENCE PART ITEMS

Head Assembly, BQ Spearhead Point,BQ Compression Spring,BQ Detent Plunger,BQ Spearhead Base,BQ Spiral Pin,7/16" X 1" Latch Retracting Case, BQ Spring Pin, 3/8" X 1-3/4" Nylok Bolt 3/8" -16UNC x 3/4"

Washer Compression spring Upper Latch Body, BQ Latch, BQ Link, BQ Spring Pin, 3/8" X 1-1/4" Stainless Steel Ball, 22mm Indicator Bushing Landing Shoulder, BQ Lower Latch Body, BQ Washer, 7/8", Nord Lock Hex Nut, 1-1/8" UNC Spindle, BQ Shut-off Valve, BQ Valve Adjusting Washer, BQ Thrust/Hanger Bearing Spindle Bushing, BQ Compression Spring, BQ Lock Nut Inner-tube Cap Assembly,BQ  Hydraulic 

Grease Fitting Stainless Steel Ball, 3/4" Inner-tube Cap, BQ Check Valve Body, BQ

REFERENCE PART#

C3542292 C42913 C15141 C42914 C3544135 C42905 C3541647 C23941 C3541932 C306427 C3543180 C3541621 C306417 C306418 C23944 C62374 C62380 C306421 C306578 C3548183 C44601

C24331 C44208 C24335 C24030 C24336 C24031 C103144 C40655 C17447 C24943 C40676 C40656

REFERENCE PHOTOS