- Metal Building Materials[1]
- Other Construction Machinery[1]
- Construction Machinery Parts[10]
- Other Machine Tools Accessories[1]
- Material Handling Equipment Parts[2]
- Metal Processing Machinery Parts[6]
- Drilling Rig[4]
- Other Mining Machinery[1]
- Mining Machinery Parts[10]
- Used Mining Machinery[3]
- Pumps[1]
- Steel Pipes[1]
- Drill Bit[3]
- Tool Parts[6]
- Contact Person : Ms. Chen Kathy
- Company Name : Beijing Feilong International Trade Co., Ltd.
- Tel : 86-10-6340 5086
- Fax : 86-10-6340 7657
- Address : Beijing,Beijing,B2-0645 ROOM, CENTURY-TEA-TRADE-CENTER, NO.10 MALIANDAO ROAD, XUANWU DISTRICT, BEIJING
- Country/Region : China
- Zip : 100055
Related Product Searches:roller cutter for Engineering bits,High Quality,roller cutter for tunnel boring machine, roller cutter,8", 12", 15"
Engineering bits are mounted on vertical well rig,construction drilling machine or excavator and used for mining,military industry,bridge and port construction,geological prospecting,hydraulic engineering and tunnel excavation. Because of high mechanization,high penetration rate,good drilling quality,low labor intensity as well as safe operation,the engineering bit is a primary product used for modern doundation construction.
Engineering bit consists of cone,bearing ,shaft,cap and sealing components.The bit cone rotate round the shaft and fis mounted on a saddle to form a drilling unit.
A special sealing system and a piston balanced structure filled with special lubricant are utilized to prevent construction bit bearing from permeation of sand,so as to improve the reliability of bearing system and prolong the lifetime of construction bit.
Types&Parameters of 8 series
Size(mm) | Insert Teeth | |
Inner Row | Gage row | |
A | 246 | 244 |
B | 198.6 | 198.6 |
C | 147 | 147 |
a | 12.5° | 12.5° |
b | 0° | 22.5° |
Applications | Medium hard to hard formations |
Types&Parameters of 12 series
Size(mm) | Insert Teeth | Steel teeth | |||
Inner Row | Gage row | Inner Row | Gage row | ||
A | 386 | 355.5 | 413.7 | 373 | 371.5 |
B | 280 | 280 | 280 | 311.9 | 306.4 |
C | 224 | 224 | 224 | 224 | 224 |
a | 10° | 10° | 10° | 10° | 10° |
b | 0° | 15° | 30° | 0° | 30° |
Applications | Medium hard to hard formations | Soft to Medium hard formations |
Types & Parameters of 15 series
Size(mm) | Insert Teeth | Steel teeth | ||
Inner Row | Gage row | Inner Row | Gage row | |
A | 453 | 544.5 | 447.7 | 544.5 |
B | 353 | 353 | 374.7 | 371.5 |
C | 340 | 340 | 340 | 340 |
a | 7° | 7° | 7° | 7° |
b | 0° | 33° | 0° | 33° |
Applications | Medium hard to hard formations | Soft to Medium hard formations |
roller cutter for Engineering bits