If you need to lay pipes underground without digging up the road, a directional drilling rig is the exact tool you need. People often call this method trenchless technology. In simple terms, this machine drills a smooth pathway underground and pulls pipes through it. It combines classic oil industry drilling tools with modern pipe installation techniques, allowing you to guide the drill bit from the surface with great accuracy.
You can use a directional drilling rig for installing water lines, power cables, gas pipes, telecom lines, and sewer systems. It works best when you need to cross under busy highways, railways, rivers, or historic city centers where digging open trenches is impossible or too expensive. The machine runs smoothly in normal working temperatures from -15°C to +45°C across most non-hard-rock soils.
Directional Drilling Rig Parameter
| Model | YG-160A | YG-180 | YG-280 | YG-320 | YG-320A |
| Engine rated power | 100KW | 97KW | 160KW | 140KW/160KW | 160KW |
| Push and pull | Cylinder | Motor | Motor | Cylinder | Motor |
| Maximum drag/feed force | 160/100KN | 180/180KN | 280/280KN | 320/320KN | 320/320KN |
| The maximum torque of the powerhead | 5000N.n | 6000N.n | 10000N.n | 12000N.n | 12000N.n |
| Powerhead speed | 0-180r/min | 0-140r/min | 0-120r/min | 0-140r/min | 0-140r/min |
| Moving speed of the powerhead | 30m/min | 20m/min | 20m/min | 20m/min | 20m/min |
| Maximum reaming hole diameter | Φ600mm | Φ600mm | Φ750mm | Φ800mm | Φ800mm |
| Drill rod length (single) | 3m | 3m | 3m | 3m | 3m |
| Drill pipe diameter | Φ60mm | Φ60mm | Φ73mm | Φ73mm | Φ73mm |
| Drill pipe diameter | 10-23° | 10-22° | 10-23° | 10-20° | 10-20° |
| Maximum mudflow | 160L/min | 250L/min | 320L/min | 320L/min | 320L/min |
| Maximum mud pressure | 100bar | 80bar | 80bar | 80bar | 80bar |
| Overall quality | 6700kg | 8500kg | 12500kg | 11500kg | 11200kg |
| Dimension(length*width*height) | 5700*1820*2400mm | 6400*2270*2340mm | 7100*2260*2450mm | 7100*2250*2450mm | 7662*2162*2450mm |
Advantages of Horizontal Directional Drilling
- No Road Damage: It keeps traffic moving and leaves pavement untouched.
- High Accuracy: You can steer the drill bit underground, adjust depth, and easily bypass old utilities.
- Long-lasting Pipes: By placing pipes 6 to 18 meters underground, you protect them from oxygen and harsh weather, making them last much longer.
- Lower Operating Costs: The job takes less time, requires fewer workers, and avoids costly road repairs.
💡 Beginner Tip: Always scan the ground with utility locators before starting. Knowing where old pipes and wires are keeps your crew safe and avoids costly damage.
Real Story: How a Small Crew Succeeded with Their First Rig
A small contractor team in Southern Europe used to dig standard open ditches for water pipes. City rules became stricter about breaking streets, so they decided to invest in their first piece of horizontal directional drilling equipment.
They started with a compact HDD rig featuring automatic rod loading and simple setup controls. On their very first job—laying a 120-meter PE water pipe under a main city street—they completed the work in just 1.5 days.
The old open-cut method would have closed the street for 5 days. Because they did not need to repave the street, they saved nearly 40% on total project costs.
Beginner Q&A: Buying, Using, and Simple Care
A modern horizontal drilling rig easily handles steel and PE pipes with diameters from 300mm to 1200mm. It can pull pipes over distances up to 1500 meters depending on soil conditions.
No, on-site assistance is not required. Contemporary machines come with high automation, including auto-anchoring and smart monitoring systems. Manufacturers provide complete remote support and step-by-step video lessons to guide you online.
Focus on two main parts: clean the mud system daily and keep the drill pipe threads clean and lubricated. Automatic lubrication systems handle part of the job, but removing dirt after work stops wear and tear.
💡 Tip: Always flush your mud pump with clean water at the end of the day. Dried drilling fluid will block nozzles and break seals quickly.
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