Our head assembly features long life span, good compatibility with parts like inner tube and outer tube from other vendors, and availability in all spare parts.
 
All With ISO certificate & quality control.













Size:

Wireline series: AQ, BQ, NQ, HQ, PQ, PQ3, HQ3, NQ3, BQ3, NQ2, WL-56, WL-66, WL-76, BQU, NQU, HQU, PQU

T2 series: T2 46, T2 56, T2 66, T2 76, T2 86, T2 101

TT series: TT 46, TT 56

T6 series: T6 76, T6 86, T6 101, T6 116, T6 131, T6 146

T6S series: T6S 76, T6S 86, T6S 116, T6S 131, T6S 146

B series: B46, B56, B66, B76, B86, B101, B116, B131, B146

MLC series: NMLC, HMLC

LTK series: LTK48, LTK60

WF series: HWF, PWF, SWF, UWF, ZWF

WT series: RWT, EWT, AWT, BWT, NWT, HWT(Single Tube, Double Tube)

WG series: EWG, AWG, BWG, NWG, HWG(Single Tube, Double Tube)

WM series: EWM, AWM, BWM, NWM, HWM

Other sizes: AX, BX, NX, HX, TBW, NQTT, HQTT, TNW, 412F, BTW, TBW

Chinese standard: 56mm, 59mm, 75mm, 91mm, 110mm, 131mm, 150mm, 170mm, 219mm, 275mm

Russian standard: 59, 76, 93, 112, 132, 152 mm

1.5m and 3.0m length core barrels are available, and also can provide the shorter core barrels which used to open the holes.