Geotechnical drilling rig YG series

explorationwater welldeep

Overview
Deep water well drilling rig designed for extraction from 180 m up to 800 m and beyond. Fully hydraulic control with swing torque from 3,200 to 11,150 N·m and multi-process compatibility to address hard rock, quicksand, pebbles and mixed strata. Typical uses include irrigation, municipal water supply, geothermal boreholes, mining exploration and construction dewatering.

Key technical description
Fully hydraulic control system enabling adjustable speed, torque and feed pressure. Crawler-type chassis with 2.5 km/h travel speed and 30° max climbing for muddy or mountainous sites. Supports down-the-hole hammer, air-lift reverse circulation, mud and foam pump systems. Main frame made of high-strength low-carbon alloy steel with imported critical components for extended service life and maintenance-friendly layout.

Parameters (condensed table)
Model | YG-180 | YG-200 | YG-300 | YG-400 | YG-600 | YG-800
Machine weight (T) | 4.5 | 5.8 | 9 | 10 | 12 | 13
Drilling diameter (mm) | 140–254 | 140–305 | 140–325 | 140–350 | 140–350 | 140–500
Drilling depth (m) | 180 | 200 | 300 | 400 | 600 | 800
One-time advance length (m) | 3.4 | 3.4 | 6.6 | 6.6 | 6.6 | 6.6
Walking speed (km/h) | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5
Climbing angle (Max.) | 30° | 30° | 30° | 30° | 30° | 30°
Equipped power (kW) | 55 | 65–70 | 84 | 92 | 115 | 140
Required air pressure (MPa) | 1.7–2.5 | 1.7–3.0 | 1.7–3.3 | 1.7–3.5 | 1.7–3.5 | 1.7–3.5
Air consumption (m³/min) | 17–31 | 17–30 | 17–35 | 17–35 | 17–35 | 17–35
Drill pipe diameters (mm) | Φ76, Φ89 | Φ76, Φ89 | Φ89, Φ102 | Φ89, Φ102, Φ108 | Φ102, Φ108, Φ114 | Φ76, Φ89, Φ102
Drill pipe lengths (m) | 1.5/2.0/3.0 | 1.5/2.0/3.0 | 1.5/2.0/3.0/6.0 | 1.5/2.0/3.0/6.0 | 1.5/2.0/3.0/6.0 | 1.5/2.0/3.0
Rig lifting force (T) | 15 | 12 | 20 | 22 | 28 | 35
Swing speed (RPM) | 45–65 | 45–70 | 55–115 | 45–115 | 45–115 | 55–115
Swing torque (N·m) | 3,200–4,600 | 3,500–4,800 | 6,200–8,500 | 6,500–9,000 | 8,500–11,000 | 8,660–11,150
Machine size (mm) | 3800×1500×2200 | 4000×1750×2450 | 5900×2000×2850 | 5900×2100×2850 | 6000×2200×2850 | 6100×2100×2900

Core advantages

• Full hydraulic control for precise adaptation to varying geology.
• Crawler chassis for high mobility on muddy and steep terrain (2.5 km/h, 30° climb).
• Multi-process compatibility: DTH hammer, reverse circulation, mud/foam systems.
• Robust main frame of high-strength alloy steel and imported key components for longer operating cycles.

Applications

• Agriculture: irrigation wells for farms and rural water supply (common models: 180–300 m).
• Geothermal and energy: deeper models (400–800 m) for geothermal boreholes requiring verticality.
• Mining and hard rock exploration: high-torque models for granite and complex strata penetration.
• Municipal and infrastructure: water supply, dewatering and foundation stabilization for large projects.

Selecting guidance (summary)

• Choose models with swing torque ≥ 6,000 N·m for hard rock (e.g., YG-300, YG-800).
• Use casing drive or casing systems in quicksand/soft soils to maintain bore stability.
• For variable strata, select machines with wide RPM range (45–115 rpm) for adaptability.
• Match model to depth, site mobility and power source (crawler for slopes, trailer/plain for batch work; diesel for off-grid, electric for grid-connected sites).

Technical specifications

• Series: YG (models: YG-180, YG-200, YG-300, YG-400, YG-600, YG-800).
• Drilling depth range: 180–800 m depending on model.
• Drilling diameter range: 140–500 mm depending on model.
• Swing torque range: 3,200–11,150 N·m across models.
• Rig lifting force: 12–35 T depending on model.
• Travel speed: 2.5 km/h; max climbing angle: 30°.
• Power reference: 55–140 kW depending on model.
• Recommended air compressor: 17–36 m³/min capacity; working pressure 1.7–3.5 MPa.
• Supported drill pipe diameters: Φ76, Φ89, Φ102, Φ108, Φ114 (model dependent).
• Drill pipe length options: 1.5, 2.0, 3.0 and 6.0 m (larger models).
• Typical single-pass advance: 3.4 m or 6.6 m by model.
• Weight range: approximately 4.5 T to 13 T across models.
• Suitable processes: DTH hammer, air-lift reverse circulation, mud/foam dredging.
• Main frame: high-strength low-carbon alloy steel; imported main components; supplier MTBF > 2000 hours (supplier-stated).