T2 76 86 101 Double Tube Core Barrels For Hard Rock Formation Drilling

T2 76, 86, 101 Double Tube core barrels for hard rock formation drilling

T2 Series core barrels

Double tube

T2 double tube core barrels are widely used and suitable for coring in all hard and soft formations, with water flushing and/or polymer fluid. The thin walls provide fast penetration, lower bit cost and larger core sample.

They are in accordance with the metric standards ISO 3552-1.1992.

All spare parts and accessories for T2 core barrels are manufactured from the best quality raw materials.

The inner and outer tubes are manufactured from cold drawn seamless steel tubes with very high tensile strength and straightness providing the same properties as our drill rods and casing tubes.

Core lifters (springs) are available in standard and in basket type. Basket type is suitable for very soft and fine grained formations.

Core lifter cases can be case hardened to increase their wear resistance, upon special request.

Available in sizes 101, 86, 76, 66, 56, 46 & 36mm.

TECHNICAL SPECIFICATIONS

The standard effective lengths are 3.0 & 1.5 meters. Other lengths and short starters are available, if requested.

**Other thread connections on head assembly may be manufactured-if dimensionally possible- upon request.

Complete double tube core barrels are supplied without core bits and reaming shells. They can be supplied separately.

T2 double tube core barrels can easily convert to:

. Single tube core barrels
. Triple tube core barrels (coreliners)

ROSCHEN GROUP

ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mineral tools, equipment products quality stable and reliable.

ROSCHEN Group Limited is a manufactory with years of research and development for the mining, mineral tools, equipment. We are capability to produce high performance world class products and control excellent quality. Our main product includes tricone bit, diamond core bits, drill pipe, core barrel, TCI tricone bit, mill tooth tricone bit, RC hammer, DTH bit, etc.

ROSCHEN Manufactory PROCESS

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ROSCHEN'S MISSION

1. Strive to create and supply Best quality products for the industry that last longer than the average products.

2. Provide excellent service for our clients. 24 hour-7 days /week schedule to get our clients what they need – FAST.