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Brand Name : | ROSCHEN |
Model Number : | 90 ~ 380 |
Certification : | ISO |
Price : | Negotiate |
Supply Ability : | 1000 sets |
OVERBURDEN MINERAL EXPLORATION DRILLING
Overburden Mineral Exploration Drilling for Water Well Hole Drilling
Overburden
Overburden at a coal mining site
In mining, overburden (also called waste or spoil) is the material
that lies above an area that lends itself to economical
exploitation, such as the rock, soil, and ecosystem that lies above
a coal seam or ore body. Overburden is distinct from tailings, the
material that remains after economically valuable components have
been extracted from the generally finely milled ore. Overburden is
removed during surface mining, but is typically not contaminated
with toxic components and may be used to restore an exhausted
mining site to a semblance of its appearance before mining began.
A related term is interburden, meaning material that lies between
two areas of economic interest, such as the material separating
coal seams within strata.
Analogous uses
Overburden may also be used as a term to describe all soil and
ancillary material above the bedrock horizon in a given area.
By analogy, overburden is also used to describe the soil and other
material that lies above a specific geologic feature, such as a
buried astrobleme, or above an unexcavated site of archeological
interest.
In particle physics, the overburden of an underground laboratory
may be important to shield the facility from cosmic radiation that
can interfere with experiments.
In arboriculture, the word is also used for the soil over the top
of the roots of a tree collected from the wild.
Specifications:
Model | Casing sizes | Min. I.D. Dia. of Casing Shoe | Reaming Dia. | Hammer shank | Drill pipe | |||
Max. OD | Min. ID | Thread | O.D. | Wrench Flat | ||||
ODEX90 | 115 | 102 | 90 | 123 | DHD3.5/COP32/QL30 | API 2 3/8" REG | 76 | 65 |
ODEX115 | 142 | 128 | 115 | 152 | DHD340/COP44/SD4/QL40/M40 | API 2 3/8" REG | 76 | 65 |
ODEX140 | 171 | 157 | 140 | 187 | DHD350R/COP54/SD5/QL50/M50 | API 2 3/8" REG | 89 | 65 |
ODEX165 | 196 | 183 | 165 | 211 | DHD360/COP64/SD6/QL60/M60 | API 2 3/8" REG | 114 | 95 |
ODEX190 | 222 | 205 | 190 | 237 | DHD360/COP64/SD6/QL60/M60 | API 3 1/2" REG | 114 | 95 |
ODEX240 | 273 | 261 | 240 | 308 | DHD380/COP84/SD8/QL80/M80 | API 3 1/2" REG | 114 | 95 |
ODEX280 | 324 | 305 | 280 | 378 | SD10/NUMA100 | API 4 1/2" REG | 114 | 95 |
Stocks is available by any time.
Quality warranty:
Our products are made of high quality steel and all spares parts
are inspected strictly before shipping. We have quickly responses
for your complaint and suggestion.
Package:
Using ply wooden cases and pallet for package to protect the
products and avoid the damagement during transportation. Also we
can customize package according to your special requests.
Production time:
Generally stocks is available.
Transportation:
By air, By Express or By sea according to your requests.
FAQ
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core
barrel, casing, drill rod, SPT equipment, Shelby sampler, drill rig
and other drilling parts.
They are used for mineral exploration, geological drilling,
geotechnical engineering and soil sampling.
Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance
and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all
problems and questions. Besides, we accept goods return or replace
for quality problem.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our
products, Roschen always makes a serious inspection for all
products and raw materials in strict procedure. We have obtained
certificate of ISO9001:2000 in 2004.
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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