Stabilization drilling rig YG729S

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Product Overview
Choosing the wrong DTH machine for hard-rock drilling or slope support causes project delays and excess fuel consumption. This guide summarizes the technical specifications and configurations to verify before selecting a DTH surface drill rig for industrial projects.

Key Features

• Standard Drilling Depth: Handles blast and production holes from 15 m to 50 m in hard rock.
• Hole Diameter Range: Suitable for boreholes from 70 mm up to 250 mm; typical operation 90–220 mm.
• Core Configuration: Drill rig frame, air compressor, drill rods, and DTH hammer with button bits.

DTH Machine Parameter
Item: YG729S — Description: Diesel & Electric Surface Down The Hole Drill Rig
Diesel engine: Yuchai & Electric motor — Lifting force: 50 kN
Rated power: 60/55 kW — Method of feed: Oil cylinder + roller chain
Drilling hardness: f = 6 ~ 20 — Travelling speed: 0 ~ 2.5 km/h
Drilling diameter: 90 - 220 mm — Climbing capacity: 25°
Depth of economic drilling: 50 m — Ground clearance: 400 mm
Suitable drilling rod: φ76 mm × 3 m — Weight (complete machine): 6000 kg
Suitable DTH hammer: 4", 5", 6" — Outer dimensions (L×W×H): 6050 × 2200 × 2600 mm
Working pressure: 1.0 ~ 2.0 MPa — Diesel oil tank volume: 70 L
Air consumption: 11 ~ 21 m³/min — Method of dust collecting: Optional

Where Is a DTH Machine Used in Industry?

• Open-pit Mining and Quarrying: Drills clean blast holes for efficient rock fragmentation.
• Slope Support for Roads and Railways: Drills accurate anchor and bolt holes on steep or uneven slopes.
• Water Conservancy and Reef Blasting: Used in reservoir construction and underwater dredging/blasting projects.
• Foundation and Construction: Prepares foundation and pile holes for heavy structural support.

How to Match DTH Machine Tools for Soil vs. Rock?

• Soft Soil and Clay Layers:
  • Drill Rods: Use twist (spiral) drill rods designed for soft formations.
  • Drill Bits: Use three-wing alloy bits for cutting softer strata.
  • Air Needs: Dry soils require air compressors for hole cleaning; hydraulic-assisted rigs behave differently in pure clay.
• Hard Rock Formations:
  • Drill Rods: Use heavy-duty round steel drill rods.
  • Drill Bits: Use pneumatic DTH hammers with alloy button bits sized for rock.

Power Options and Site Power Considerations

• Power Supply Available: Option A — Air-electric DTH machine + 6 m³ electric air compressor. Option B — Full pneumatic DTH machine + 12 m³ electric air compressor.
• No Power / Remote Sites: Option A — Full pneumatic DTH machine + 12 m³ diesel air compressor. Option B — Air-electric DTH machine + 6 m³ diesel air compressor. Option C — Electric DTH machine + electric air compressor + on-site diesel generator.

Characteristics / Technical Specifications

• Model: YG729S
• Description: Diesel & Electric Surface Down The Hole Drill Rig
• Diesel engine: Yuchai & Electric motor
• Lifting force: 50 kN
• Rated power: 60/55 kW
• Method of feed: Oil cylinder + roller chain
• Drilling hardness: f = 6 ~ 20
• Travelling speed: 0 ~ 2.5 km/h
• Drilling diameter: 90 - 220 mm
• Climbing capacity: 25°
• Depth of economic drilling: 50 m
• Ground clearance: 400 mm
• Suitable drilling rod: φ76 mm × 3 m
• Weight (complete machine): 6000 kg
• Suitable DTH hammer: 4", 5", 6"
• Outer dimensions (L×W×H): 6050 × 2200 × 2600 mm
• Working pressure: 1.0 ~ 2.0 MPa
• Diesel oil tank volume: 70 L
• Air consumption: 11 ~ 21 m³/min
• Method of dust collecting: Optional