20 Piece/Pieces per Month Diamond Core Drill Bits for hard rock
Packaging & Delivery
In wooden case, or according to your requirement.
Chongqing, Shanghai, Guangdong
Within 7-30 days after the order
China Long Service Life diamond core drill bit for hard rock
Core Barrels are used to cut an annular ring in rock or concrete or reinforced concrete. The center
core of the rock or concrete is usually crushed with rock auger. The most important advantage of a core barrel is that it assists to concentrate the torque and crowd force on a small ring of cutting teeth.
Core barrels are generally divided into two types: 1- Core barrel with bullet bits (Applicable for strong rock up to 100Mpa or rock with deep cracks) 2- Core barrel with roller bit (Applicable for very strong rock formations with compressive strength greater than 100Mpa)
2.High ROP in medium to medium hard formations with the low compressive strength and small abrasive formations.
3.Applicable for soft to medium hard formations.
1.Double cone crown profile and medium size ballaset diamond cutter.
2.Natural diamond ID&OD gauge,collected groove fluid courses with flow.
3.Applicable for medium to medium hard formations, such as sandstone, limestone and dolomite.
1.Arc crown profile.
2.Natural diamond ID&OD gauge.
3.Fluid courses with ID or face discharge courses are optional. 4.Applicable for medium hard formations.
1.Arc crown profile and self-sharpening impregnated segments.
2.Radial Fluid courses design.
3.Applicable for extreme hard and abrasive formations such as quartz sandstone.
Packaging & Shipping
Packing:In wooden case , also be packaged according to customer requirements.
Shipping:We will issue the goods within 7 to 30 days after you place your order.
Chengdu rongwanda drilling equipment co., LTD is the largest domestic engaged in the diamond bit, bit one of the manufacture and sale of professional companies. Company adopts the world's cutting-edge design concepts and advanced manufacturing technology, design and manufacture of oil, natural gas drilling and comprehensive geological study of drilling, core and special-purpose of diamond bit and rock bit.
We are also exploring a broader overseas market.Following the fast development, our market ability will gradually improve, and the products will become great better to supply each customer,The corporation is persevered in high standards, strict requirements, and regards product quality as its life.
Core barrels are mainly used when encountering boulders, cemented gravel, or rock layers.
The cutting ring can be equipped with with various bit arrangements:
with pin teeth or weld-on teeth
with AS weld-on teeth
with round shank chisels ("bullet teeth")
with roller bits for special cases
Q: What are your main products, and used for?
A: Our products include diamond bits, tricone bits and so on. Widely used in mineral exploration, geological drilling, geotechnical engineering, soil sampling etc.
Q: How do you control the quality?
A: Quality first. In order to guarantee high quality products, all our products are in strict accordance with ISO9001 international quality system and have to undergo a rigorous testing system before delivery.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: Min. Order?
A: Min. order quantity: 1 piece
Q:Do you provide samples?is it free or extra?
A:Yes,we could offer the sample with good price but not free,if the sample tested is ok, we can give you a good price for the further order.
Q: Where is your factory located in?
A: We have a fixed cooperative factory.Our factory is located in Chengdu city, Sichuan province, China. Welcome to visit.