Soil investigation drilling rig YG series

stabilizationgeotechnicalpiling

Overview
Think of a rotary drilling rig as a heavy-duty machine designed to create deep, circular boreholes for bored piles and foundation works. The unit rotates a steel tool to cut and extract soil or rock efficiently, enabling installation of reinforced concrete piles for buildings, bridges, roads and retaining structures.

Common Uses for Beginners

• Building foundations: Drilling deep holes to support residential or commercial structures.
• Bridge construction: Creating stable pile foundations for river and highway bridges.
• Retaining works: Forming bored piles along slopes to stabilize ground and prevent landslides.

Beginner Mistake to Avoid
Do not use a single drill tool across all ground conditions. Choose a standard drilling bucket for soft soils and switch to a core barrel or auger for rock layers. Using the wrong tool reduces advance rate and increases wear on the rig.

Real example (case study)
A small construction team in Mexico purchased a compact rotary piling rig for a three-story commercial foundation. After profiling local soil layers and selecting a transportable model, they completed the piling phase two weeks ahead of schedule and cut equipment costs by over 30% versus renting.

Beginner Q&A

• How do I choose the right rotary drilling rig for my first purchase? Use three parameters: pile diameter, required drilling depth and soil type. Compact rigs with a friction Kelly bar suit most shallow residential piles; interlocking Kelly bars provide greater penetration for deeper holes in soft soils.
• What daily maintenance must I do before starting the engine? Check hydraulic and engine oil levels, inspect the Kelly bar and wire ropes for damage, and grease main rotating bearings and joints.
• What should I do if the borehole wall starts collapsing? For loose or saturated soils use bentonite slurry or install temporary steel casings during drilling to support the hole and keep cuttings under control.

Technical specifications

• YG13
  • Max. Drilling Diameter: 1000 mm
  • Max. Drilling Depth: 13 m
  • Max. Rotary Torque: 50 KN·m
  • Rotary Angle: 360°
  • Rotary Speed: 10-45 r/min
  • Dimension (m): 3.1 × 1.92 × 3.5 m
  • Weight: 9 ton
• YG15
  • Max. Drilling Diameter: 1600 mm
  • Max. Drilling Depth: 15 m
  • Max. Rotary Torque: 45 KN·m
  • Rotary Angle: 180°
  • Rotary Speed: 17-45 r/min
  • Dimension (m): 6.8 × 2.27 × 3.2 m
  • Weight: 13 ton
• YG16
  • Max. Drilling Diameter: 1500 mm
  • Max. Drilling Depth: 16 m
  • Max. Rotary Torque: 46 KN·m
  • Rotary Angle: 180°
  • Rotary Speed: 20-46 r/min
  • Dimension (m): 10 × 2.3 × 3.2 m
  • Weight: 11 ton
• YG20
  • Max. Drilling Diameter: 1600 mm
  • Max. Drilling Depth: 20 m
  • Max. Rotary Torque: 36 KN·m
  • Rotary Angle: 360°
  • Rotary Speed: 22-43 r/min
  • Dimension (m): 9.5 × 2.6 × 3.5 m
  • Weight: 17.8 ton