Horizontal directional drilling rig YG series

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Overview
If you need to lay pipes underground without digging up the road, a directional drilling rig (horizontal directional drilling, HDD) drills a smooth underground pathway and pulls pipes through it. It combines classic oil-industry drilling tools with modern pipe-installation techniques allowing accurate surface steering of the drill bit. Typical operating temperature range: -15°C to +45°C in non-hard-rock soils.

Applications

• Installing water lines, power cables, gas pipes, telecom lines and sewer systems
• Crossing under highways, railways, rivers or historic city centres where open trenching is impractical

How it works (summary)
The machine drills a pilot bore, uses steering to guide the path from the surface, performs reaming to enlarge the hole as required, and pulls the pipe into the created bore. Suitable for trenchless pipe installation over long distances depending on soil conditions.

Advantages of Horizontal Directional Drilling

• No Road Damage: Keeps traffic moving and leaves pavement untouched.
• High Accuracy: Steering the drill bit allows depth adjustment and bypassing existing utilities.
• Long-lasting Pipes: Pipes installed deeper (6–18 m) are protected from weather and oxygen.
• Lower Operating Costs: Faster jobs, fewer workers and no repaving costs.

Beginner Tips & Maintenance

• Always scan the ground with utility locators before starting to avoid damaging existing utilities.
• Daily care: clean the mud system and keep drill pipe threads clean and lubricated. Automatic lubrication helps but manual cleaning prevents wear.
• Flush the mud pump with clean water at the end of the day to avoid dried fluid blocking nozzles and damaging seals.

Typical performance & capabilities (FAQ highlights)

• Pipes handled: common steel and PE pipes from ~300 mm up to 1200 mm diameter (depending on rig and accessories).
• Pull distance: up to ~1500 meters depending on soil conditions and project specifics.
• Operator assistance: modern rigs include high automation (auto-anchoring, smart monitoring). Remote support and video lessons are commonly available from manufacturers.

Directional Drilling Rig Parameter (table)
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: 0-180 r/min | 0-140 r/min | 0-120 r/min | 0-140 r/min | 0-140 r/min
Moving speed of the powerhead: 30 m/min | 20 m/min | 20 m/min | 20 m/min | 20 m/min
Maximum reaming hole diameter: Φ600 mm | Φ600 mm | Φ750 mm | Φ800 mm | Φ800 mm
Drill rod length (single): 3 m | 3 m | 3 m | 3 m | 3 m
Drill pipe diameter: Φ60 mm | Φ60 mm | Φ73 mm | Φ73 mm | Φ73 mm
Drill pipe angle (as shown in table): 10-23° | 10-22° | 10-23° | 10-20° | 10-20°
Maximum mudflow: 160 L/min | 250 L/min | 320 L/min | 320 L/min | 320 L/min
Maximum mud pressure: 100 bar | 80 bar | 80 bar | 80 bar | 80 bar
Overall quality (weight): 6700 kg | 8500 kg | 12500 kg | 11500 kg | 11200 kg
Dimension (L*W*H): 5700*1820*2400 mm | 6400*2270*2340 mm | 7100*2260*2450 mm | 7100*2250*2450 mm | 7662*2162*2450 mm

Characteristics / Technical specifications

• YG-160A — Engine 100 KW; push/pull by cylinder; max drag/feed 160/100 KN; max torque 5000 N·m; powerhead speed 0–180 r/min; moving speed 30 m/min; max reaming Φ600 mm; drill rod 3 m; drill pipe Φ60 mm; angle 10–23°; mudflow 160 L/min; mud pressure 100 bar; weight 6700 kg; dimension 5700×1820×2400 mm.
• YG-180 — Engine 97 KW; push/pull by motor; max drag/feed 180/180 KN; max torque 6000 N·m; powerhead speed 0–140 r/min; moving speed 20 m/min; max reaming Φ600 mm; drill rod 3 m; drill pipe Φ60 mm; angle 10–22°; mudflow 250 L/min; mud pressure 80 bar; weight 8500 kg; dimension 6400×2270×2340 mm.
• YG-280 — Engine 160 KW; push/pull by motor; max drag/feed 280/280 KN; max torque 10000 N·m; powerhead speed 0–120 r/min; moving speed 20 m/min; max reaming Φ750 mm; drill rod 3 m; drill pipe Φ73 mm; angle 10–23°; mudflow 320 L/min; mud pressure 80 bar; weight 12500 kg; dimension 7100×2260×2450 mm.
• YG-320 — Engine 140/160 KW; push/pull by cylinder; max drag/feed 320/320 KN; max torque 12000 N·m; powerhead speed 0–140 r/min; moving speed 20 m/min; max reaming Φ800 mm; drill rod 3 m; drill pipe Φ73 mm; angle 10–20°; mudflow 320 L/min; mud pressure 80 bar; weight 11500 kg; dimension 7100×2250×2450 mm.
• YG-320A — Engine 160 KW; push/pull by motor; max drag/feed 320/320 KN; max torque 12000 N·m; powerhead speed 0–140 r/min; moving speed 20 m/min; max reaming Φ800 mm; drill rod 3 m; drill pipe Φ73 mm; angle 10–20°; mudflow 320 L/min; mud pressure 80 bar; weight 11200 kg; dimension 7662×2162×2450 mm.