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Home > DTH (Down-the-Hole) hammers > Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
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Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling
Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling

Multi Function 8'' Inch DHD380 Down the Hole DTH Rock Drillilng Hammer and Button Bit for Mining , Water Well Drilling

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Product Description

DTH Hammer Part 1
DTH Hammer Part 2
🛠️ GSE DHD DTH Hammers Overview

DTH (down-the-hole) drilling involves a drilling hammer at the bottom of a drill string. The hammer is powered by compressed air transmitted via drilling rod to drive the piston and produce impact power, which is then delivered into rocks for drilling and crushing. It is widely applied in mining, quarrying, water well drilling, foundation piling, and more.

DTH Drilling Equipment
DTH Drilling Process
🌟 Key Features & Applications

Features

  • Premium material and fine CNC manufacturing processes
  • Optimized design with heat-treatment
  • Excellent stability and operational reliability
  • High impact frequency for faster penetration
  • Lowered compressed air consumption and long lifespan

Applications

  • Mining and Quarrying
  • Water Well Drilling
  • Geothermal Well Drilling
  • Foundation Piling
📊 DHD DTH Hammer Specifications
Hammer Diagram
GSE Hammer Size Net Weight Out Diameter Length (without bit) Rec. Hole Size
GSE DHD3.522.62 kgs80mm807mm90-130mm
GSE DHD34038 kgs99mm882mm105-130mm
GSE DHD35074 kgs126mm1028mm133-152mm
GSE DHD360112 kgs144mm1136mm152-254mm
GSE DHD380180 kgs182mm1227mm194-305mm
Hammer Detail 1
Hammer Detail 2
Hammer Detail 3
GSE Hammer Model Working Pressure Impact Freq. (at 18Bar)
GSE DHD3.58 - 25 Bar32Hz
GSE DHD3408 - 25 Bar31Hz
GSE DHD3508 - 30 Bar30Hz
GSE DHD3608 - 30 Bar28Hz
GSE DHD3808 - 35 Bar23Hz
⚡ High Pressure Hammer Advantages (Up to 35 Bar)
  • Valveless Distribution: More reliable air distribution system.
  • Optimized Piston: Simple yet compact design for extended life.
  • Energy Efficiency: Faster drilling speed with lower air and oil consumption.
  • Simplified Structure: Fewer internal parts, all heat-treated for less failure and easier maintenance.
  • Easy Maintenance: Multi-step threads on top sub and drive chuck for easy disassembly.
Internal Hammer Structure
Hammer Piston
Hammer Assembly
💎 GSE DHD DTH Bits

DTH bits are the essential tools for cutting through rock. Our bits are manufactured from superior quality alloy steel and premium tungsten carbide buttons. Advanced manufacturing technology ensures reliable quality and high performance.

DTH Bit Models

Bit Features

  • Premium alloy buttons for maximum impact strength
  • High-grade alloy steel skirts with nitriding treatment for better wear resistance
  • Complete range of sizes compatible with mainstream DTH hammers
  • Customizable face designs (Flat, Convex, Concave)
Shank Style Diameter (mm) Face Type Approx. Weight Part Number
DHD3.585-105Flat / Convex / Concave5.0 - 6.3 kgsDHD3.5-Series
DHD340105-127Flat / Convex / Concave8.6 - 9.9 kgsDHD340-Series
DHD350135-165Flat / Convex / Concave16.2 - 18.5 kgsDHD350-Series
DHD360152-203Flat / Convex / Concave23.3 - 29.5 kgsDHD360-Series
DHD380203-292Flat / Concave48.1 - 80.1 kgsDHD380-Series
📦 Packing & Professional Services

Packing: Bits and hammers are packed in specialized cardboard or plywood cases for maximum protection.

Shipping: Available via Sea, Air, or Express delivery depending on project urgency.

Packing Example

Our Services

  • OEM & ODM customization based on technical requirements
  • Strict quality control with experienced QC teams
  • Quick response and professional technical support
  • Efficient delivery and logistics management
  • Comprehensive after-sales service
❓ Frequently Asked Questions
1. How do I choose the right DTH hammer for my project? The choice depends on the hole diameter and rock type. For example, DHD3.5 is ideal for 90-130mm holes, while DHD380 is suited for larger 194-305mm holes in heavy-duty mining.
2. What is the advantage of a valveless air distribution system? A valveless system is more reliable, reduces internal complexity, and allows for higher impact frequency and lower air consumption.
3. Can you provide custom DTH bit face designs? Yes, we offer Flat Face (for hard rock), Convex Face (for soft to medium rock), and Concave Face (for general purpose and better hole deviation control).
4. What materials are used in your DTH bits? We use premium alloy steel for the skirts and high-grade tungsten carbide buttons to ensure maximum durability and penetration speed.
5. How does working pressure affect drilling performance? Higher air pressure (up to 35 bar) generally increases the impact energy and frequency, resulting in significantly faster drilling speeds in hard rock formations.
6. Are your DTH hammers compatible with other drill rig brands? Yes, our hammers and bits are designed with standard shank styles (DHD, QL, MISSION, SD) to be compatible with most mainstream drilling rigs globally.

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