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Products > Horizontal Directional Drilling
Horizontal directional drills and drilling units for underground construction, utility installation and cable laying, underground construction, utility installation, and cable laying equipment.
Horizontal directional drilling, commonly called directional boring or HDD, is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore path by using a surface launched drilling rig, with minimal impact on the surrounding area. Directional boring is used when trenching or excavating is not practical. Directional boring minimizes environmental disruption. It is suitable for a variety of soil conditions and jobs including road, landscape and river crossings. Installation lengths up to 2000m have been completed, and diameters up to 1200mm have been installed in shorter runs. Pipes can be made of materials such as PVC, polyethylene, ductile iron, and steel if the pipes can be pulled through the drilled hole.
Directional boring is used for installing infrastructure such as telecommunications and power cable conduits, water lines, sewer lines, gas lines, oil lines, product pipelines and environmental remediation casings. It is used for crossing waterways, roadways, shore approaches, congested areas, environmentally sensitive areas, and areas where other methods are costlier. It is used instead of other techniques to provide less traffic disruption, lower cost, deeper and/or longer installation, no access pit, shorter completion times, directional capabilities, and environmental safety.
The technique has extensive use in urban areas for developing subsurface utilities as it helps in avoiding extensive open cut trenches. The use however necessitates that the operator must have the complete information about the existing utilities so that he can plan his whole alignment to avoid damaging those utilities. Since uncontrolled drilling can lead to such damages different agencies/government authorities owning the urban right-of-way or the utilities have formed their rules for safe work execution. For standardization of the techniques different trenchless technology promoting organizations have developed guidelines for this technique.
XZ series of Horizontal directional drill is mainly used under the condition of non-excavating ground surface, laying and replacing various kinds of underground pipes and lines. The machine features advanced performance, high efficiency, and comfortable operation, and the key parts all matches international standards. It is the optimal equipment for the construction in the fields of water supply, gas supply, as well as electricity, telecommunication, heating, and petroleum supply.

•Multiple advanced control technologies such as PLC control, electro-hydraulic proportional control, load sensing control, and etc.
•The automatic loading and unloading device of drill pipe can improve work efficiency, eliminate work intensity and manually disoperation, reduce the necessary quantity of workers and thus reduce the construction cost.
•Dual speed driving head: drilling and pullback at low speed which ensures smooth operation; when disassembling the drill pipe and work with empty load, it can slide at a high speed, reducing the auxiliary time with higher work efficiency.
•The engine has the torque enlarging function through turbo, so that it can boost power instantaneously and guarantees the drilling power.
•The driving head has high rotating speed, good boring effect and high work efficiency.
•Tethered control device, the loading and unloading operation of the drilling rig can be performed by one person, which is safe and efficient.
•The patented fluctuation clamp can greatly prolong the service life of the drilling rig.
•There are various kinds of protection device, monitoring and alarming on the engine and hydraulic systems, which effectively guarantees the safety of operators and the machine.