Wholesale API 251mm replaceable block leg roller cone bits for hard rock drilling HDD rock reamers in the stock from China OEM manufacturer. Traditional HDD rock reamers adopts Thirds ( 1/3 ) of Tri-cone Bits to be rock drilling cutters, factories weld legs of Tricone Thirds on body of hole openers. The Tri-cone Thirds can not be replaced easily after worn out, so drillers have to buy rock reamers to continue projects. Sometimes, used rock reamers are taken to workshop, welding new Tricone Thirds after cut old ones, this cutting&welding procedures always damage the body of rock reamers. The replaceable block Leg roller cone bits are combined with holder, a pair of fixed pins. The holders are welding on body, the legs are fixed by pins and also welded into holder. After roller cone bits worn out, drillers or workshop could remove old legs from holders easily without damage body of rock reamer. This replaceable block leg roller cone bits are designed and produced in our factory, we are pleased to be customized (OEM) for horizontal directional drilling tools distributors or factories.
Far Eastern are factory specializes in drill bits,such as roller cone bit, tricone roller cone bit, tricone bits,HDD hole opener,Foundation roller cutters for different applications. The application including oil field,natural gas,geological exploration,driectional boring,mining ,water well drilling ,HDD, construction,and foundation. As a leading drill bits factory in China,increase the drill bit working life is our target. We always try to improve the bits with high penetration rates.Our purpose is to sell the high quality with the lowest price.Far eastern drilling quality and technology will help you to achieve more !| Specification of Block Leg Roller Cone Bits | |
| Size | 251mm |
| IADC | 637 |
| Bearing Type | Elastomer sealed bearing |
| Grease Lubrication | Available |
| Grease Compensation System | Available |
| Inserts Shape | Conical |
| Operating Parameters | |
| Application | Hard formations for high compressivestrength,such as sandstone,hard shale,dolomite,hard gypsum,chert, granite,etc. |
