Coal Mine Drilling Drill Bit Directional Three Blade PDC Drill Bit
Bit size: 94mm(50-150mm)
Number of Blade: 3
Number of Nozzle: 5
PDC cutter :1308
Connection type: 50cone 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 Coal Mine Drilling Drill Bit Directional Three Blade PDC Drill Bit for Efficient Underground Operations
SHAANXI HAINAISEN INTELLIGENT EQUIPMENT MANUFACTURING CO., LTD delivers enterprise-grade Coal Mine Drilling Drill Bit Directional Three Blade PDC Drill Bit solutions engineered for demanding underground operations. Our 94mm concave drill bit features precision-Manufactured 1308 PDC cutters across three strategically positioned blades, achieving exceptional penetration rates in formations ranging from soft to medium-hard strata (grades 1-12). With over 10 years of specialized PDC cutting technology expertise and a team of 20+ senior technicians, we manufacture drilling tools that combine superior steerability with extended operational life. Each directional three-blade design integrates five optimized nozzles for enhanced hydraulic efficiency, delivering measurable performance improvements in coal seam drilling environments.
Superior Three-Blade Design for Directional Control
Our three-blade configuration positions each cutting surface at precise 120-degree intervals. This geometry delivers balanced cutting action while maintaining the aggressive penetration characteristics essential for coal mining productivity.
The reduced blade count maximizes junk slot area between cutting surfaces. You benefit from improved cuttings evacuation, which prevents bit balling in sticky clay sections commonly encountered in underground operations.
The optimized blade profile enhances weight transfer to the formation face. This engineering approach gives you more accurate directional control when navigating complex well trajectories in coal seams.

Premium PDC Cutter Technology
We manufacture each bit with 1308-grade Polycrystalline Diamond Compact cutters bonded to tungsten carbide substrates. These synthetic diamond elements shear through rock formations with minimal wear, extending your operational intervals between bit changes.
The diamond-infused cutting structure maintains sharp edges throughout extended drilling cycles. You achieve consistent rate of penetration even as cumulative footage increases, reducing your cost per meter drilled.
Our cutter placement strategy distributes forces evenly across the bit face. This design prevents premature failure modes and maintains hole integrity throughout the drilling process.
Technical Specifications
Parameter | Specification |
Bit Size | 94mm (customizable 50-150mm) |
Blade Count | 3 blades |
Nozzle Configuration | 5 nozzles |
PDC Cutter Grade | 1308 |
Connection Type | 50 cone buckle (customizable) |
Formation Range | Strata 1-12 |
Minimum Order | 10 pieces |
Production Time | 5-7 business days |
Payment Terms | T/T, L/C |
Directional Drilling Advantages
The Coal Mine Drilling Drill Bit Directional Three Blade PDC Drill Bit excels in steering precision. The advanced geometry reduces friction at the bit-formation interface, giving you responsive control during directional adjustments.
Our five-nozzle arrangement creates optimized fluid dynamics around the cutting structure. The strategic positioning distributes drilling fluid for effective cooling and cuttings removal, maintaining clean cutting surfaces that preserve high penetration rates.
The reduced contact area between blade edges and formation walls minimizes lateral forces. This characteristic allows you to maintain planned well trajectories with fewer corrective steering inputs, improving overall drilling efficiency.

Quality Control
At HAINAISEN, we maintain strict quality control measures throughout the manufacturing process:
- Rigorous material testing and selection
- Precision manufacturing with state-of-the-art equipment
- Comprehensive performance testing before delivery

Project Case Studies
Underground Coal Seam Development
A major coal mining operation in Northern China deployed our 94mm three-blade directional bits for horizontal seam access drilling. The project required precise directional control through alternating sandstone and coal formations.
Our bits achieved 847 meters average footage per bit, representing a 34% improvement over the previous supplier's performance. The operation reduced bit changes from 12 to 8 per horizontal section, cutting drilling time by 18 hours per well.
The enhanced steerability allowed the drilling team to maintain planned trajectories within ±0.5 meters deviation. This precision improved coal seam intersection rates and optimized production zone placement.
Manufacturing Excellence
Our 6,000-square-meter facility in Xi'an Economic and Technological Development Zone incorporates modern manufacturing equipment. Each Coal Mine Drilling Drill Bit Directional Three Blade PDC Drill Bit undergoes rigorous quality control protocols administered by our technical team.
We hold independent intellectual property rights for our PDC manufacturing processes. This expertise stems from our founding team's participation in establishing China's first PDC production enterprise, bringing decades of accumulated knowledge to every product.
Our annual production capacity serves clients worldwide, with RMB 60 million in annual sales demonstrating market confidence in our solutions. We maintain flexible customization capabilities for connection types, bit sizes, and cutter configurations to match your specific operational requirements.

Packaging and Transportation
Our drill bits are carefully packaged to ensure safe transportation:
- Sturdy wooden crates or metal boxes
- Custom foam inserts for added protection
- Clear labeling and documentation
We work with reliable shipping partners to ensure timely delivery to your location.

Transaction Feedback
We value your feedback and continuously strive to improve our products and services. After your purchase, we'll follow up to ensure your satisfaction and address any concerns.

Qualification Certification
HAINAISEN is proud to hold relevant industry Certifications, demonstrating our commitment to quality and safety standards in drill bit manufacturing.

After-Sales Service
Our commitment doesn't end with the sale. We provide comprehensive after-sales support, including:
- Technical assistance and troubleshooting
- Maintenance guidance and best practices
- Warranty support and repairs if needed
FAQ
Q1: Which types of formations work best with three-blade PDC Bits?
A: In soft to medium-hard rocks characteristic of coal mining operations, such as shale, sandstone, and clay layers with compressive strengths between 2,000 and 8,000 PSI, three-blade designs work best.
Q2: What are the advantages of directional capability for coal mining operations?
A: Accurate coal seam targeting and better production zone access in horizontal and directional wells are made possible by the improved steerability, which enables precision navigation through intricate geological structures.
Q3: What are the benefits of PDC technology over conventional drill bits?
A: PDC bits reduce mechanical failures and increase penetration rates by doing away with moving elements. The synthetic diamond cutters reduce your overall drilling expenses by maintaining cutting efficiency over long operating times.
Q4: Could you change the type of connection for our current drill string?
A: Yes, in addition to the typical 50 cone buckle, we provide custom connection combinations. To guarantee compatibility with your drilling equipment, our engineering team works with your specifications.
Q5: In comparison to traditional bits, what is the anticipated lifespan?
A: Drilling parameters and formation features determine operational life. When compared to conventional bits, our clients usually experience 30–50% longer operational intervals; certain applications report even higher advantages.
Contact Us
For more information about our Coal Mine Drilling Drill Bit Directional Three Blade PDC Drill Bit or to place an order, please Contact Us at hainaisen@hnsdrillbit.com.
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