5 inch - 10 inch Overburden Drilling Systems Down The Hole Drilling for construction

Overburden Drilling Systems

Roschen offers a complete line of tooling for a wide range of overburden drilling applications.

Casing Advancement Systems are designed to simultaneously drill and case in overburden formations. Hole Products offers systems from leading manufacturers including Mincon®, Mitsubishi, and ®.

In addition, we offer casing hammers and jacks, cable tool and rotary style drive shoes, dual rotary shoes, and a variety of overburden drilling accessories.

No seeing what you need? Need to inquire about additional product availability? Please contact a Hole Products representative for assistance.

Pilot bit is well designed to offer good drilling efficiency.

Optimization design for each part reduces the probability of accident.

Strengthening quality of stable pole driller extends the drilling life and improve cost-performance ratio.

As much as 90% of the land surface of the earth is covered with loose, unconsolidated material such as soil, clay, silt, sand, gravel and boulders, which varies in depth from a few centimetres to hundreds of meters.

Applications:

Overburden drilling style: ODEX-eccentric, Symmetrix-concentric

Overburden drilling hole Diameter: ODEX-eccentric: 114-324mm

Symmetrix-concentric: 114-610mm

Features:

• Pilot bit is well designed to offer good drilling efficiency.

• Optimization design for each part reduces the probability of accident.

• Strengthening quality of stable pole driller extends the drilling life and improve cost-4,performance ratio.

Drilling through this so-called overburden is often problematic, due to the tendency of the earth to cave in behind the drill bit.

This makes it difficult to retrieve the drill string after the hole has been drilled. In practice, the bore hole is often lost before a casing tube can be inserted to support it.

Other problems are caused by cavities or porous ground, which interfere with the circulation of the flushing medium and prevent the drill cuttings from being flushed out of the hole.

In places where overburden strata are mixed, or when their drillability is unknown, it is difficult for the driller to decide what tools to use in order to get the best overall results without risking the loss of equipment in the hole.

The best solution for dealing with such problems is to use ODEX equipment.

For more information please contact:

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.net ; http://www.roschen.cn

http://www.roschen.com ; http://www.roschengroup.com

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 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

ROSCHEN Sales Value Growing Up!

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.