No Mud, No Road Closure: Dry Horizontal Directional Drilling Machine (Municipal Pipeline Weapon) Q&A

Q1: What is a "dry" horizontal directional drilling machine? What scenarios is it mainly used for?

A : Dry drilling means the rig does not use mud (water) for cuttings removal and wall protection during drilling; instead, it directly discharges soil out of the hole using a spiral drill rod or special bit. It is widely used for urban power/communication cable road-crossing, water/gas pipeline road-crossing, and short-distance pipeline crossings under green belts. It is especially suitable for urban main roads and sidewalks with extremely high site cleanliness requirements.

Q2: Compared to traditional "wet drilling (mud drilling)", what are the absolute advantages of the dry road-crossing machine?

A : The advantages are obvious:1. Zero mud pollution: No mud pump or mud pit needed, leaving the site clean without polluting roads or green belts, fully meeting urban environmental construction requirements.2. No subsequent cleaning: After traditional wet drilling, mud is everywhere, making cleanup extremely costly. Dry drilling only requires sweeping away the dry soil discharged.3. Lower costs: Eliminates the need to purchase bentonite, mix mud, and clean up mud, significantly reducing overall construction costs.

Q3: The dry road-crossing machine doesn't need water, so how are its power and drilling efficiency?

A : The power is very strong. The equipment is typically equipped with gasoline engines.  Since there is no need to drive a mud pump, all power is concentrated on the bit's rotation and advancement. In ordinary loess, hard soil, or beneath asphalt roads, drilling speed is very fast, usually completing a road-crossing operation in just a few hours.