Product Overview

High Air Pressure (HAP) DTH (Down-The-Hole) Drill Bits are core components matched with high-pressure DTH hammers, designed for high-efficiency drilling in ultra-hard rock formations (f=12-20). Our bits adopt premium tungsten carbide buttons and high-strength alloy steel bodies, delivering stable performance in mining, quarrying, water well drilling, geothermal drilling and construction engineering.
Application Scope
Mining Exploration & Blasting Holes
Water Well & Geothermal Drilling
Quarry & Rock Excavation
Highway & Railway Construction
Dam & Foundation Engineering
Key Features
Advantages of High-pressure DTH drill bit:
1. Longer drill bit life: Made of alloy materials, resulting in a longer service life than similar products;
2. High drilling efficiency: The drill bit is wear-resistant and remains sharp at all times, greatly increasing drilling speed;
3. Stable drilling speed: The drill bit breaks rocks through scraping and cutting;
4. Superior performance: High-pressure drill bits have strong wear resistance, good diameter protection, and can effectively utilize cutting teeth;
5. Wide range of applications: Practical experience has proven that this drill bit is suitable for soft and hard rock formations such as carbonate rocks, limestone, chalk, claystone, siltstone, and sandstone (9-level drillability, hard rock drilling). Compared with ordinary drill bits, it is particularly effective in drilling rock formations with 6-8-level drillability.
Our Strengths
20+ Years Manufacturing Experience
ISO9001 & CE Certified
Premium Raw Materials
Strict Quality Inspection
Fast Delivery & Custom Service
Overseas After-Sales Support
Details



FAQ
Q1: What air pressure is required for DTH bits?
A1: Working pressure 1.0–2.5 MPa, matched with high-pressure air compressor (≥12m³/min).
Q2: How to choose the right size?
A2: Based on hammer model, hole diameter & rock hardness. Contact us for professional recommendation.
Q3: What is the average service life?
A3: 300–800 meters depending on rock abrasiveness, 30% longer than standard bits.
Q4: Do you accept OEM & ODM?
A4: Yes, custom logo, size, carbide type are welcome.
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