8 1/2 Inch PDC Drill Bit 16mm Cutters Factory Suppliers in China

High-performance 8 1/2 inch PDC bits from a leading China factory. Ideal for soft to medium-hard formations with abrasive interlayers, offering superior wear resistance. Contact professional suppliers for durable drilling solutions.

SupplierHEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD.www.yhrockdrill.com

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About this product

Product information from the supplier.

The 8 1/2 Inches PDC Bit is a high-performance drilling solution engineered for demanding oil and gas exploration and mining operations. Featuring 16mm premium cutters and a robust 4-blade configuration, this bit is designed to optimize penetration rates and ensure maximum stability in challenging geological formations.

Constructed from high-strength alloy steel with a precision press-fit cutter attachment method, this bit combines durability with efficiency. The crown undergoes a specialized surface hardening process to significantly enhance erosion resistance, ensuring a longer service life and reduced downtime for heavy-duty drilling rigs.

Detailed Parameters

Size (Inches)	8 1/2″	Size (mm)	215.9
Number of Blades	4	Primary Cutter Size	16mm
Nozzle Quantity	4	Gauge Length	2″ - 3.5″
Connection	4-1/2″ API REG	Recommended RPM	60-250 r/min
Recommended WOB	10-100 KN	Flow Rate	25-36 lps

Key Advantages

Surface Hardening

The bit crown is treated with advanced surface hardening to maximize resistance against abrasive erosion.

Extended Lifespan

Utilizing Polycrystalline Diamond Compact (PDC) cutters for extreme hardness and wear resistance.

High Toughness

Built with a high-strength alloy steel body to withstand intense mechanical stress during drilling.

Precision Fit

PDC cutting teeth are securely fastened via a professional press-fit method for stability.

Optimized Flow

Four nozzle configurations ensure efficient cuttings removal and cooling of the working face.

Versatile Application

Ideal for various rock formations within the oil drilling and specialized mining sectors.

Product Gallery

Management Platforms

Inventory Control

Real-time tracking of PDC bits and drill rods to ensure seamless project supply chains.

Performance Monitoring

Analyze WOB and RPM data to optimize drilling efficiency and reduce tool wear.

Maintenance Alerts

Scheduled notifications for bit inspection and cutter replacement cycles.

Quality Assurance

Strict adherence to API standards for all connection and material specifications.

Logistics Tracking

Global shipping management for specialized drilling equipment to remote sites.

Custom Engineering

Tailored bit designs based on specific geological data and drilling requirements.

Investment Return Comparison

Performance Metric	Standard Steel Bits	Our PDC Bit	Improvement
Drilling Speed (ROP)	Baseline	High Efficiency	+40% - 60%
Tool Life Cycle	Short/Moderate	Extended	+100% - 150%
Maintenance Cost	High Frequency	Low Frequency	-30% Reduction
Erosion Resistance	Moderate	Enhanced (Hardened)	Significant
Overall ROI	Standard	High Performance	Optimized

Frequently Asked Questions

Q: What are the main advantages of using PDC bits over Tricone bits?

PDC bits offer higher rates of penetration (ROP) and significantly longer service lives in many formations because they shear the rock rather than crushing it, reducing the need for frequent tool changes.

Q: How do I avoid premature wear of the PDC cutters?

To prevent premature wear, avoid using the maximum limits of Weight on Bit (WOB) and RPM simultaneously. Following the recommended operating parameters provided in the technical table is crucial.

Q: Is the 8 1/2 inch bit suitable for all rock types in mining?

While PDC bits are highly versatile, they are most effective in soft to medium-hard formations. For extremely hard or abrasive rock, we recommend evaluating specific cutter grades or considering TCI Tricone bits.

Q: What is the purpose of the surface hardening process on the crown?

Surface hardening is applied to the bit crown to protect the steel body from the erosive effects of high-velocity drilling fluids and abrasive cuttings, extending the tool's structural integrity.

Q: Does this bit comply with international API standards?

Yes, our bits utilize standard API REG connections (e.g., 4-1/2″ API REG) to ensure full compatibility with global drill string components and equipment.

Q: Can the nozzle quantity be customized for different flow rates?

Yes, we provide customized drill bit solutions. While this model comes with 4 nozzles, we can adjust the configuration to match your specific hydraulic requirements and flow rates.