We offers a complete line of single & double and triple tube core barrels, which will provide superior performance

and obtain the full recovery of the sample in any application of diamond core drilling.

Using a wireline system, core is recovered quickly by retrieving the inner tube directly through the drill string. The

rods remain in the hole until the bit needs to be replaced. This has big cost advantages when drilling deep holes for

mineral exploration.
Standard Wireline Double tube Core Barrels are ideal for use in most of the drilling conditions and are available for

application in standard hole sizes (BWL, NWL, HWL and PWL).

BWL, NWL, NWL-2, NWL-3, HWL, HWL-3, PWL, PWL-3 (Surface & Underground);

BTW, NTW, HTW (Surface & Underground);

LTK48, LTK60, T2 76, T2 86, T2 101

Wireline Triple tube Core Barrels enable integral core recovery when drilling coal, clay bearing or highly fractured

formations. The split tube retains the core sample in its received state for easier loading into sample trays or for

storage and subsequent presentation to the geologist. The Triple tube Core Barrels is available in N, H and P sizes.

When the inner-tube is full, a device called an overshot is lowered down the hole via a wireline cable and brought

to the surface by use of a winch.
Once the inner-tube assembly is at the surface, an empty inner tube is lowered into the hole so drilling can resume
A Overshot is available for each size of core barrel. This is the retrieval device lowered on the wireline to recover

the inner tube assembly containing core.

1. Faster coring at greater depths

2. Good stability due to constant diameter of the drill string

3. excellent hydraulics

4. Good core recovery

Wire-line core drilling equipment is very commonly used for mineral exploration for deep holes.