Horizontal Directional Drilling Rig I.Product description The horizontal directional drilling rig（HDD）is a kind of construction machinery which can lay a variety of underground utilities (pipes, cables, etc.) without excavating the surface of the ground. Horizontal directional drilling technology is a new construction technology which combines the directional drilling technology to the oil industry and the traditional method of pipeline construction together. I.Used in the field of: 1.Water supply pipeline construction project 2.Electric power pipeline construction project 3.Telecommunication pipeline construction project 4.Natural gas pipeline construction project 5.Coal gas pipeline construction project 6.Oil pipeline construction project 7.Sewage pipeline construction project Ground conditions: Sand、Clay、Pebbles and other ground conditions. II.Features 1) Lowest diesel fuel consumption.（Cummins engine） 2) Main components all adopt famous products from home and abroad. 3) Powerful diesel engine, low noise, suitable for construction in downtown. 4) The power head is equipped with two engine; stable torque. 5) Push/pull system is driven by double engine;fast and snow level,can move fast. 6) Easy to control;Ball Valve can lead to fast/snow level;more safe to tow and can walk at a high speed. 7) Mud Pump is driven by hydraulic pressure; speed-changing flexibly according to different Geological conditions and construction technology. 8) Use long drill,main body moderately take the efficiency and construction requirements in narrow place into account. 9) Hydraulic pressure leg can adjust machine more stable and convenient.