Horizontal directional drilling and FTTH construction
Horizontal directional drilling, commonly called HDD or Directional boring, is a construction machine of laying a variety of underground utilities (pipelines, cables, etc.), without excavating the ground surface, with minimal impact on the surrounding area. By the way, HDD is used when trenching or excavating is not practical.
HDD(Horizontal directional drilling) is widely used in water supply, electricity, telecommunications, natural gas, coal, oil and other fields.
Most of the horizontal directional drilling equipment used the Max. Pull capacity to measure the device capabilities size, such as 15 tons, 20 tons, 28 tons, 32 tons, 40 tons, 68 tons, 120 tons, 245 tons, 400 tons, 550 tons and 1000tons etc.
Underground cable laying machine
There is a full introduction video for this Underground cable laying machine, which would be perfect solution for FTTH construction projects.
HDD and fiber to the home (FTTH)
Progress in cost-reducing fiber-laying technologies has progressed to the point that the actual cost of laying an undergroud FTTH network today is extremly competive. One of the most remarkable recent developments has been horizontal directional drilling (HDD), also known as trenchless deployment.
Based on our project experience, making FTTH in rural areas is not that difficult. Going into the cities is more difficult though. You don;t want to block the roads and space i soften limited. Here you can use HDD (Horizontal directional drilling). Here is a little video that shows and explains on this issue.
For better explaining the detail specification of this device, FOT is sharing this 15tons horizontal directional drilling machine parameters:
|The Main Machine of Horizontal Directional Drilling Rig|
|Power of Engine||66.2 KW(89HP) (2200r/min)|
|Max. Push capacity||75KN (16860 lbf)|
|Max. Pull capacity||150KN (33720 lbf)|
|Rated Torque||4200 N·M(3096 lbf·ft)|
|Hollow Spindle RPM||Lower 0-60r/min|
|Feeding Stroke||3500 mm(137.8 inch)|
|Diameter of Guide Hole||Ф80 mm(3.15 inch)|
|Drilling Angle of hydraulic HDD rig||0°—20°|
|Pressure of hydraulic system||20-25Mpa(2901-3626 psi)|
|Traveling speed||2.5 km/h (8200 feet/h)|
|Structural Style||integrated with rubber crawler and mud pump|
|Dimension (L×W×H)||5800×2050×2380 mm(228×81×94 inch)|
|Weight of hydraulic HDD rig||6100 kg(13450 lb)|
|Mud Pump of Horizontal Directional Drilling Rig|
|Max. Discharge||160 L/min(42.3 US Gallons/min)|
|Peak Pressure of hydraulic HDD rig pump||10 Mpa(1450 psi)|
|Mud Process System of Horizontal Directional Drilling Rig|
|Mud Tank||1.5M3 (53 feet3)|
|Drilling Tools and Auxiliary System of Horizontal Directional Drilling Rig|
|Specification of Rod||Ф60×3000 mm(Ф2.36×118 inch)|
|Guide Bit of hydraulic HDD rig||Ф80 mm(3.15 inch)|
|Reamer||Ф179,Ф259,Ф313,Ф365,Ф417mm (Ф7.05,Ф10.2,Ф12.32,Ф14.37,Ф16.42 inch)|
|Hydraulic anchoring and auto loading system||optional part|