Application of GK40 DTH Hammer in Blasthole Drilling

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Product details

Product Description

The GK40 is a high-performance, pneumatic Down-the-hole Hammer designed for efficient rock drilling in mining, quarrying, water well, and construction foundation projects. It operates by compressed air, delivering high-impact energy to the DTH Bits for rapid rock penetration.

Key Specifications

Model：GK40 (High Air Pressure DTH Hammer)

Hole Diameter Range：110–130 mm

Length (without bit):836 mm

Weight (without bit): 32.61 kg

Working Air Pressure: 1.0–2.5MPa

Air Consumption: 6–14 m³/min

Core Features

High Efficiency & Penetration Rate: Optimized piston and valve design ensures high impact frequency and energy transfer, enabling fast drilling in hard rock formations.
Durable Construction: Made of high-grade alloy steel with precision CNC machining and heat treatment, ensuring long service life and reliability under harsh conditions.
Advanced Air Distribution: No-valve or simplified valve air distribution system minimizes air loss, reduces energy consumption, and lowers maintenance costs.
Central Exhaust Design: Efficient flushing removes rock cuttings, reducing re-crushing and improving drilling efficiency.
Easy Maintenance: Modular design with fewer components allows for quick disassembly, inspection, and replacement of worn parts.
Versatile Application: Suitable for dry, wet, and mixed air-water drilling; ideal for blast holes, water wells, geothermal wells, and foundation piles.

Compatible Bits

Works with 4-inch (110–130 mm) DTH Bits (e.g., QL40, DHD340, Mission40 series) with standard shank configurations.

Summary

The GK40 Down-the-hole Hammer balances power, efficiency, and durability, making it a cost-effective choice for medium-duty rock drilling projects. Its robust design and low maintenance requirements ensure reliable performance in diverse geological conditions.

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Luoyang Golden Egret Geotools co., Ltd.

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2 year

Main Product: Top Hammer Drilling Tools, DTH Drilling Tools, Coal Mining Tools, Construction Tools , Wear and Crushing Tools, Rotary Drilling Tools

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