One Hydraulic DTH Drilling Machine for Mining, Construction and Geological Exploration

One Machine, Multiple Applications: Why Hydraulic DTH Drilling Machines Stand Out

In today’s engineering and drilling industry, cost control and efficiency are more important than ever. Contractors and project owners are no longer looking for single-purpose equipment — they want one machine that can handle multiple working conditions.

The hydraulic DTH drilling machine, especially the XinHao drilling rig, has become a preferred solution across mining, construction, and geological exploration. Thanks to its modular design, adjustable parameters, and strong mobility, one machine can easily adapt to different projects with minimal modification.

This article explains how one hydraulic DTH drilling machine achieves multi-scene operation, and how to set it correctly for different applications.

Why Can a Hydraulic DTH Drilling Machine Be Used in Multiple Industries?

Modular Structure for Easy Adaptation

The core structure of a hydraulic DTH drilling machine includes:

• DTH hammer

• Drill rod

• Drill bit

By simply changing drill bits, the same XinHao drilling rig can be used for:

• Mining blasting holes (alloy drill bits)

• Construction foundation drilling (spiral or anchor drill bits)

• Geological exploration drilling (core drilling bits)

No need to replace the whole machine — this significantly reduces equipment investment costs.

Flexible Hydraulic Control System

Hydraulic systems allow precise adjustment of:

• Air pressure

• Rotation speed

• Impact frequency

• Feed force

For example:

• Hard rock mining requires high pressure and high impact

• Construction foundation drilling needs stable, lower pressure

• Geological exploration focuses on controlled speed and low vibration

This flexibility is a key reason why hydraulic DTH drilling machines are widely used by geological exploration drilling rig manufacturers.

Strong Mobility for Different Job Sites

• Small models can be disassembled and transported by pickup trucks

• Large models use crawler chassis for rough terrain

• Suitable for mines, urban construction sites, and remote exploration areas

Mining Application: High-Efficiency Blasting Hole Drilling

How to Ensure Accuracy and Depth in Hard Rock?

For granite, basalt, and other hard rocks:

• Drill bit diameter: 80–150 mm

• Hydraulic pressure: 75%–85% of rated pressure

• Impact frequency: 30–50 Hz

Segmented drilling with hole wall protection helps maintain:

• Hole vertical deviation ≤ 1%

• Stable hole depth for safe blasting

Why Is DTH Drilling Faster Than Traditional Methods?

Compared with traditional impact drills:

• Drilling speed increases by over 40%

• 30–50 blast holes per day (100 mm diameter, 10 m depth)

• Dust collection systems reduce over 90% dust pollution

This improves both productivity and on-site safety.

Construction Industry: Replacing Single-Purpose Equipment

Foundation and Anchor Hole Drilling

In construction sites, hydraulic DTH drilling machines can handle:

• Silty clay

• Sandstone

• Mixed soil-rock layers

With hole diameters from 50–300 mm, they are ideal for:

• Soil nailing walls

• Anchor rod drilling

• Foundation reinforcement

Compressed air removes cuttings directly, reducing dust and meeting urban environmental standards.

Is It Suitable for Pile Foundation Projects?

For small and medium buildings (below 10 floors):

• Hole diameter: 300–500 mm

• Hole depth: within 20 meters

Hydraulic DTH drilling machines can replace rotary drilling rigs, reducing:

• Equipment rental cost by up to 50%

• Required working space to only 3–5 m²

Perfect for space-limited urban projects.

Geological Exploration: Precision and Portability Combined

Adjusting Parameters for Different Rock Layers

• Hard rock (granite, quartzite):

  • Diamond core drill bits

  • Low speed (5–8 m/h)

  • Reduced impact force to protect core samples

• Soft or loose formations (shale, sand):

  • Alloy core bits with casing

  • Uniform drilling speed

  • Core recovery rate up to 85%+

This meets international geological exploration standards and explains why many geological exploration drilling rig manufacturers adopt hydraulic DTH technology.

Portable Design for Field Exploration

• Lightweight models: 200–500 kg

• Easy transport to mountains and remote areas

• Dual power options:

  • Diesel engine for off-grid locations

  • Electric motor for urban or low-noise environments

Key Tips for Multi-Application Operation

Correct Accessory Replacement

Before switching applications:

• Clean drill rods and DTH hammers

• Check drill bit edges and wear

• Prevent residual rock powder from damaging components

Parameter Re-Calibration

Always reset parameters according to application:

• Mining → Construction:

  • Reduce pressure from 8–10 MPa to 4–6 MPa

• Construction → Exploration:

  • Lower impact and rotation speed

Following the equipment manual ensures longer machine life.

Safety Measures for Different Sites

• Mining: helmet, impact goggles, blasting zone protection

• Construction: anti-tilt supports, falling object protection

• Exploration: insect protection, emergency medical kits

Conclusion: Adaptability Is the Real Value of a Hydraulic DTH Drilling Machine

From deep mining blast holes to urban foundation drilling and precise geological sampling, the XinHao drilling rig proves that one hydraulic DTH drilling machine can truly serve multiple industries.

For contractors and project owners, choosing a multi-application drilling rig means:

• Lower equipment purchase and rental costs

• Reduced transport and setup time

• Higher overall project efficiency

That’s why hydraulic DTH drilling machines continue to be the smart choice for modern engineering projects.