81/2 Inch Roller Cones for Core Barrel

• Certification: ISO 9001:2000
• Condition: New
• Drill Hole Diameter: >300mm
• Model NO.: IADC627
• Drill Hole Depth: 100-150m
• Bit Type: Diamond Bit
• Drilling Way: Rotary
• Type: Crawler
• Color: Golden or as You Wish
• Transport Package: Wooden
• Trademark: superior
• Origin: China
• HS Code: 8207191
• Production Capacity: 5000 Sets/Month

Product Description

Rock Core Barrel with Roller Bits
Structural Features:

1. The rock core barrel with roller bits has design of a straight barrel and its open typed low part, whose ring edge is equipped with roller bits, facilitates entrance of slags.
2. Different from the full face drilling bucket, the rock core barrel with roller bits is in circular drilling manner, having high efficiency of drilling in rocks. The complete columnar dyke goes into the barrel during drilling.
3. Applicable Formations: drilling in slightly weathered rocks, boulder, hard bedrock.

Technical Specifications of Rock Core Barrel with Roller Bits
Dia.(mm)	OD of Barrel(mm)	Teeth Height(mm)	Barrel Height	Bullet Teeth Count
Barrel-type Bit φ600	520	1,620	1,200	7
Barrel-type Bit φ800	720	1,620	1,200	9
Barrel-type Bit φ1,000	920	1,620	1,200	9
Barrel-type Bit φ1,200	1,120	1,620	1,200	12
Barrel-type Bit φ1,500	1,420	1,620	1,200	15
Barrel-type Bit φ1,800	1,720	1,620	1,200	18
Barrel-type Bit φ2,000	1,920	1,620	1,200	21
Barrel-type Bit φ2,200	2,120	1,620	1,200	21
Barrel-type Bit φ2,500	2,420	1,620	1,200	21

FAQ
1. Is your company a distributor or a manufacturer?
A:  Yes,We are a professional Rock Bits manufacturer   in China.
 
2. How  about your products?
A : All our activities are accredited to ISO 9001:2008, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.


  3.what is the Packaging & Delivery?
  A:We used high quality export carton or standard export woodern case
 
 4.what is the time about the delivery?
   A: repared to deliver within 1 week, if in stock.
Depends on order quantity, when out of stock,7-30days
Transportation:By sea or air
 5. How to order the products?
A: Send the inquiry with detail item description or with Model number. If there is no packing demand we take it as sea-way packing. If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
 
 6.What is the website about your factory?
  A:Our website is http://superiorbit.en.made-in-china.com