Product Application
Tunnel Engineering
Tunnel Engineering
The main applications of drilling and blasting operations in tunnel engineering are threaded connection drilling tools and taper drilling tools. Among them, Threaded Drilling Tools include a full set of drilling products such as thread column tooth drill bit, thread Drill Rod, Shank Adaptor, Coupling, etc. Taper drilling tools include taper Drill Rod, taper drilling tools and other drilling tools.
In China's Three Gorges, Gezhouba (Xiluodu, Guan's power station, Shuibuya power station, Jinping power station) and other national large-scale hydropower project construction projects, the 5.5-meter, 6.1-meter and 6.4-meter tunneling drill pipes and 45-mm and 48-mm tunneling drill bits 51mm, 57mm, 64mm and 76mm anchor drilling drill bits produced by the enterprise. (Supporting Atlas Boomer353E multi-arm trolley) has been widely used in engineering, in which tunneling drill pipe has become the only domestic high-quality drilling tool product that can completely replace imported drill pipe. China Hydropower Construction Group (First Engineering Bureau, Fourth Engineering Bureau, Sixth Engineering Bureau, Seventh Engineering Bureau, Eleventh Engineering Bureau, Thirteenth Engineering Bureau, Fourteenth Engineering Bureau), China Armed Police Hydropower Force, China Railway Construction Group (China Railway 13th Bureau, China Railway 18th Bureau) and many other state-level large-scale hydropower, tunnel construction companies are important users of Lianhuashan's full set of tunneling products.
| Tunnel Engineering | |||
| Threaded Drilling Tools | LHS Part No. | Products | Description |
| R32 | ZQ48D-R32-A1 | Button Bit | Diam.48mm，Hemispherical Buttons, 6 Gauge Buttons, R32 Thread. |
| ZQ51D5-R32-A1 | Button Bit | Diam.51mm，Hemispherical Buttons, 6 Gauge Buttons, R32 Thread. | |
| ZQ57D2-R32-A1 | Button Bit | Diam.57mm，Hemispherical Buttons, 6 Gauge Buttons, R32 Thread. | |
| ZQ64F1-R32-A1 | Button Bit | Diam.64mm, Hemispherical Buttons, 8 Gauge Buttons, R32 Thread. | |
| KLG35T38R32-4305 | Drill Rod | T38F-Hex35-R32M Thread, Length 4305mm, Speed Hex Rod. | |
| KLG35T38R32-4915 | Drill Rod | R38F-Hex35-R32M Thread, Length 4915mm, Speed Hex Rod. | |
| LG35R32T38-5525 | Drill Rod | T38-Hex35-R32 Thread, Length 5525mm, Hex Rod. | |
| LG35R32R38-6400 | Drill Rod | R38-Hex35-R32 Thread, Length 6400mm, Hex Rod. | |
| LR32-190 | Coupling | R38-R38 Thread, Length 190mm, Half Bridge | |
| LT38-190Q | Coupling | T38-T38 Thread, Length 190mm, Full Bridge | |
| QW33-435T38 | Shank Adaptor | Series-33 Shank Adaptor, Full Length 435mm, T38 Thread. | |
| QW6-485T38 | Shank Adaptor | Series-6 Shank Adaptor, Full Length 485mm, T38 Thread. | |
| Tunnel Engineering | |||
| Tapered Drilling Tools | LHS Part No. | Products | Description |
| 7°Taper | YQM38-722 | Chisel Bit | Diam.38mm，Horseshoe Skirt, 7°Taper，Inner Hole Diameter 22mm. |
| YQ40-722 | Chisel Bit | Diam.40mm，Standard Skirt, 7°Taper，Inner Hole Diameter 22mm. | |
| YQ42-722 | Chisel Bit | Diam.42mm，Standard Skirt, 7°Taper，Inner Hole Diameter 22mm. | |
| ZQ40B-723B2 | Button Bit | Diam.40mm，Parabolic Buttons, 3 Gauge Buttons, 7°Taper，Inner Hole Diameter 23mm. | |
| ZQ40S-723B2 | Button Bit | Diam.40mm，Parabolic Buttons, 4 Gauge Buttons, 7°Taper，Inner Hole Diameter 23mm. | |
| LG722-1800 | Drill Rod | Shank Hex22*108, 7°Taper，Effective Length 1800mm. | |
| LG722-2400 | Drill Rod | Shank Hex22*108, 7°Taper，Effective Length 2400mm. | |
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