PDC Core Drill Bit With 8 Blades For Hole Drilling Used In Mining
Bit size: 94mm(60-200mm)
Number of Blade: 4
Number of Nozzle: 4
PDC cutter :1308
Connection type: 63.5cone buckle(customized)
Package Details: customized
Applicable strata:1-12
Minimum Order Quantity : 10 pieces
Price : To be negotiable
Delivery Time : 5-7 business days
Payment Terms : T/T, L/C
- Product Description
High-Performance PDC Core Drill Bit With 8 Blades For Hole Drilling Used In Mining – Advanced Solution for Hard Rock Formations
Enterprise-Grade 8-Blade PDC Core Drilling Technology
SHAANXI HAINAISEN INTELLIGENT EQUIPMENT MANUFACTURING CO., LTD delivers the PDC Core Drill Bit With 8 Blades For Hole Drilling Used In Mining, engineered specifically for hard formation drilling operations. With over 10 years of PDC cutting expertise and a 6,000-square-meter manufacturing facility staffed by 20+ senior technicians, we produce drilling solutions that achieve measurable performance in challenging geological conditions. Our 8-blade configuration integrates precision-positioned 1308 PDC cutters to deliver enhanced durability and core sample accuracy across strata grades 1-12. Backed by CNY 50 million in production investment, each bit undergoes rigorous quality testing to meet the demands of mining and exploration professionals worldwide.
Why Choose 8-Blade Configuration for Mining Applications
The 8-blade design represents a specialized solution for tough drilling environments. More blades mean greater cutter coverage, which translates to improved wear resistance when you're working through abrasive rock layers.
This configuration excels in hard formations where bit longevity matters most. The additional blade count distributes cutting forces more evenly, reducing stress on individual PDC cutters. You'll notice extended bit life compared to 4-blade or 6-blade alternatives.
While drilling rates may be slightly lower than fewer-blade designs, the trade-off is worthwhile when durability and hole quality are priorities. Each blade carries optimally spaced 1308 PDC cutters that maintain sharpness throughout extended drilling cycles.

Technical Specifications
Parameter | Specification |
Bit Type | Reaming Bit |
Standard Size | 94mm |
Available Range | 60-200mm |
Blade Count | 8 Blades |
Nozzle Count | 4 Nozzles |
PDC Cutter Type | 1308 |
Connection Type | 63.5 Cone Buckle (Customizable) |
Applicable Strata | Grades 1-12 |
Minimum Order | 10 Pieces |
Delivery Time | 5-7 Business Days |
Payment Terms | T/T, L/C |
Superior Performance Features
Enhanced Wear Resistance
Your operations demand equipment that lasts. Our PDC Core Drill Bit With 8 Blades For Hole Drilling Used In Mining uses polycrystalline diamond compact technology with micron-sized diamond particles bonded under extreme heat and pressure. This creates cutting surfaces that maintain integrity through thousands of meters of drilling.
Precision Hole Quality
The precise positioning of eight blades ensures straighter boreholes and consistent core sample recovery. You'll extract high-quality geological samples for accurate formation analysis. This accuracy reduces rework and improves project decision-making.
Versatile Formation Compatibility
Whether you're drilling through sandstone, limestone, or harder metamorphic rocks, the strata grade 1-12 capability covers diverse mining environments. The nozzle configuration optimizes cuttings removal, preventing bit balling in sticky formations.
Customizable Connection Options
We understand drilling rigs vary across operations. The standard 63.5 cone buckle connection adapts to your existing equipment, with custom connection types available to match your specific rig specifications.
Selection Suggestions
| Working Condition Type | Recommended Configuration | Selection Notes |
|---|---|---|
| Medium-Hard Rock Formation Core Reaming | Standard 8-Blade PDC Bit | Suitable for conventional mining formations, balancing efficiency and cost. |
| High-Hardness Rock Formation Core Reaming | Enhanced Wear-Resistant 8-Blade PDC Bit | Upgraded PDC tooth material to improve wear resistance and extend bit life. |
| Broken Formation Core Reaming | Impact-Resistant 8-Blade PDC Bit | Optimized cutting tooth layout to reduce impact damage and ensure reaming stability. |
Supplementary Note
Before selection, please provide information such as formation lithology, core diameter, rig model, and drill pipe specifications. We can match the most suitable 8-blade PDC core reaming bit for you to avoid operational inefficiencies caused by improper selection.
Application Advantages in Mining Operations
Mining engineers choose this bit design for exploration drilling, grade control sampling, and geotechnical investigations. The 8-blade architecture performs exceptionally in:
Coal Seam Exploration – Consistent penetration rates through variable hardness layers common in coal deposits.
Metallic Ore Sampling – Durable performance in hard rock environments typical of copper, gold, and iron ore projects.
Geotechnical Assessment – Clean core recovery for accurate rock mechanics testing and mine planning.
The enhanced drilling speed capabilities come from sharp cutting edges that efficiently penetrate rock formations. You'll complete drilling programs faster while maintaining sample quality standards.

Quality Manufacturing Standards
Our Xi'an facility operates with standardized production protocols developed through decades of combined team experience. Each PDC Core Drill Bit With 8 Blades For Hole Drilling Used In Mining undergoes dimensional verification, cutter placement inspection, and hydraulic flow testing before shipment.
The 150+ person production team includes specialists in PDC cutter brazing, bit body fabrication, and quality assurance. This expertise ensures consistent performance across every unit we Manufacture.

Project Case Studies
Underground Coal Mine Development Project
A northern China coal operation required 150 boreholes for ventilation shaft planning. Using our PDC Core Drill Bit With 8 Blades For Hole Drilling Used In Mining, the contractor completed drilling 30% faster than scheduled. The bits maintained cutting efficiency through mixed strata containing sandstone and coal seams, with an average of 420 meters drilled per bit before replacement.
Gold Exploration Campaign
An exploration company in the northwest mining region needed consistent core recovery in highly fractured quartz formations. Our 8-blade design delivered 95% core recovery rates across 80 exploration holes, providing geologists with reliable samples for resource estimation.

Packaging and Transportation
Our products are carefully packaged to ensure safe transportation:
- Sturdy wooden crates or metal boxes
- Customized packaging solutions for bulk orders
- Compliance with international shipping regulations

Transaction Feedback
We value customer feedback and continuously strive to improve our products and services. Our team follows up after each transaction to ensure your complete satisfaction.

After Sales Service
Our commitment doesn't end with the sale. We provide comprehensive after-sales support, including:
- Technical guidance and troubleshooting
- Maintenance recommendations
- Performance optimization advice
Qualification Certification
SHAANXI HAINAISEN INTELLIGENT EQUIPMENT MANUFACTURING CO.,LTD holds various industry Certifications, demonstrating our commitment to quality and regulatory compliance.

FAQ
Q1: What formations are best suited for 8-blade PDC Bits?
A: This configuration excels in hard to medium-hard formations including granite, basalt, quartzite, and consolidated sedimentary rocks. The multiple blades provide stability and wear resistance in abrasive conditions.
Q2: How does blade count affect drilling performance?
A: More blades increase contact area with the formation, improving bit stability and longevity. While penetration rates may decrease slightly compared to 4-blade designs, you gain significantly extended bit life in hard rock applications.
Q3: Can you customize the bit size for my project?
A: Absolutely. We manufacture bits from 60mm to 200mm diameter. Our engineering team works with your specifications to deliver the optimal size and connection type for your drilling equipment.
Q4: What is the expected lifespan in mining applications?
A: Lifespan varies with formation hardness and drilling parameters. Typical performance ranges from 300 to 600 meters in hard rock mining conditions, with some applications exceeding 800 meters when properly operated.
Q5: How do I maintain optimal performance?
A: Use appropriate weight-on-bit and rotation speed for your formation. Ensure adequate fluid circulation to remove cuttings and cool cutters. Regular inspection of nozzles prevents flow restrictions that reduce efficiency.
Contact Us
For inquiries about our PDC Core Drill Bit With 8 Blades For Hole Drilling Used In Mining or any other products, please email us at hainaisen@hnsdrillbit.com.
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