8 1/2 Inch Trenchless No Dig Foundation Single Roller Cone Bit

Product Description

 

Size	8 1/2''
IADC Code:	6-3-7
Bearing:	Journal bearing
Sealing:	O-ring
Cutting structure:	Conical
Rows/Qty:	7/52
Shirttail/Lug	Welding carbide & adding inserts

Hengji Bit offers single roller cone bit/tricone cutters,in both steel tooth and TCI(tungsten carbide insert).Whether you are using a cutter  for hole openers, core barrels or other applications of Foundation and Horizontal Directional Drilling,hengji can cut the cutters to your required size.

 

MAIN STRUCTURE FEATURES

1. Journal bearing. Hardfaced head bearing surface.Inne hole of ocne is silve-plated.The load capacity and seizure resistance of the bearing is greatly improved.
2. O ring seal is mode of more wear resistant and high saturated buna-N with the increased seal section and precisely designed scaling flange in the cone sealing ares has increased the reliability of the seal.
3. All rubber compensator is used which can limit pressure differential and prevent drilling fluid from entering the lubrication system and thi provides the bearing system with good assurance of lubrication.
4. High weat resistance and excellent cutting ability pf the insert bit are given full play bu using carbide compacts of high strength and high toughness in comnination with optimized compact numbers and rows, the exposure height and special shaped compacts. For steel tooth tricone, the tooth surface is hard taced with new type of wear resistant material and thus has extended working life of the cutting structure while still maintaining high ROP.

There are full types of drill bits for your choosing in Hengji . Include TCI tricone bit,steel tooth tricone bit,single roller cone bit,pdc bit, hole opener,drag bit, etc.
Our bits  are exported to global 58 countries. With good quality drill bits, we are the approved drill bits manufacturer and supplier for famous oil gas companies.As a good reputation OEM supplier, we are also a famous OEM manufacturer for famous companies.
ISO9001 & SGS Certified  drill manufacturer, we are proud to bring you top-quality drill bits at good prices. Door to Door delivery service is available too. Send us a mail to get the best price now.
What we provide:
Tricone bits TCI & stell tooth 3 7/8''~32'';
Hole opener 200mm~1800mm;
Single roller cone bit
PDC Bit 3~9 baldes 4 1/8''~17 1/2'';
Drag bits, blade drag bit,pdc drag bit,chervon drag bit.
Drilling tools, collars, adaptor sub,stabilizar

 

 

 FAQ
1. Is your company a distributor or a manufacturer?
A:  Yes,We are a a professional factory of rock drilling bits   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.We have many high quality  prducts (https://hb-bits.en.made-in-china.com/) . 
  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: https://hb-bits.en.made-in-china.com/