Factory Shipment of Four-Wing Concave PDC Drill Bits for Rock Drilling, Grouting and Anchoring Projects
Professional Drilling Solutions for Grouting, Gas Drainage, Slope Stabilization, Anchor Cable, Water Well and Geothermal Applications
Chenghui Drilling Tools Manufacturing Co., Ltd has successfully completed the production and shipment of a new batch of four-wing concave PDC drill bits for overseas drilling applications.
Designed for professional rock drilling projects, these PDC drill bits are widely used in grouting holes, gas drainage holes, slope stabilization, anchor cable drilling, water well drilling, and geothermal drilling projects.
With advanced concave design, optimized PDC cutter arrangement, and high-strength bit body construction, Chenghui four-wing PDC drill bits deliver excellent drilling efficiency and longer service life in formations ranging from soft rock to medium-hard and hard rock conditions.
Established
Years Experience
Available Sizes
Concave Design
Table of Contents
Professional Four-Wing Concave PDC Drill Bit Manufacturer
Chenghui Drilling Tools Manufacturing Co., Ltd is a professional manufacturer specializing in high-performance drilling tools.
Our product range includes:
With years of manufacturing experience, we provide customized drilling solutions for international drilling contractors, distributors, and engineering companies.
All PDC drill bits are manufactured using 100% new virgin raw materials to ensure stable quality, reliable performance, and consistent drilling results.
Four-Wing Concave PDC Drill Bit Design Advantages
The four-wing concave PDC drill bit adopts an optimized cutting structure designed for efficient rock penetration.
1. Four-Wing Cutting Structure
The four-wing design provides:
This structure is especially suitable for projects requiring accurate borehole quality and continuous drilling performance.
2. Premium PDC Cutter Configuration
According to different drilling diameters and rock conditions, our four-wing PDC bits use professional diamond composite cutters:
The optimized cutter arrangement improves:
Four-Wing PDC Drill Bit Technical Specifications
The following table shows our standard four-wing PDC drill bit specifications:
| Diameter | Cutter Configuration | Bit Design | Suitable Formation | Weight |
|---|---|---|---|---|
| 75mm | 8 PCS 1308 + 2 PCS 1304 | Standard flat & spherical inserts | Slightly hard rock (Fs6) | 2 KG |
| 91mm | 8 PCS 1308 + 2 PCS 1304 | Standard flat & spherical inserts | Slightly hard rock (Fs6) | 3 KG |
| 113mm | 12 PCS 1308 + 3 PCS 1304 | Reinforced PDC design | Medium-hard rock (Fs8) | 4.4 KG |
| 133mm | 12 PCS 1308 + 3 PCS 1304 | Reinforced PDC design | Medium-hard rock (Fs8) | 5 KG |
| 153mm | 16 PCS 1308 + 2 PCS 1304 | Reinforced PDC design | Medium-hard rock (Fs8) | 7 KG |
| 171mm | 20 PCS 1308 + 2 PCS 1304 | Reinforced PDC design | Medium-hard rock (Fs8) | 8 KG |
| 200mm | 20 PCS 1308 + 2 PCS 1304 | Reinforced PDC design | Medium-hard rock (Fs8) | 9.2 KG |
| 220mm | 24 PCS 1308 + 3 PCS 1304 | Reinforced PDC design | Medium-hard rock (Fs8) | 11.2 KG |
| 245mm | 28 PCS 1308 + 3 PCS 1304 | Reinforced PDC design | Medium-hard rock (Fs8) | 14.6 KG |
Note: Fs = Rock hardness coefficient. Customized sizes and configurations available upon request.
Available Sizes and Customized Manufacturing
Chenghui supplies four-wing and three-wing PDC drill bits in various sizes.
75mm – 325mm
Standard Diameter Range
Customization options include:
Main Applications of Four-Wing PDC Drill Bits
1. Grouting Hole Drilling
Used for tunnel reinforcement, foundation treatment, underground construction, and infrastructure projects. The stable cutting structure improves drilling efficiency and reduces downtime.
2. Gas Drainage Hole Drilling
Widely applied in coal mining projects for gas extraction, underground safety drilling, and coal seam drilling. The sharp PDC cutters provide fast penetration and stable borehole quality.
3. Slope Stabilization & Anchor Cable Drilling
Ideal for slope protection, rock anchoring, highway construction, and mountain reinforcement. The four-wing structure provides excellent stability when drilling long anchor holes.
4. Water Well & Geothermal Drilling
Suitable for water wells, geothermal wells, and ground source heat projects. Long service life and reliable cutting performance reduce drilling costs.
Suitable Rock Formations
Our four-wing concave PDC drill bits are designed for different geological conditions.
Soft to Medium Rock Formation
- Mudstone
- Coal seams
- Backfill formations
- Weathered rock
Medium-Hard Rock Formation
- Red sandstone
- Limestone
- Dolomite
- Complete rock formations
The optimized PDC cutting structure allows efficient drilling performance from softer formations to harder geological conditions.
Factory Manufacturing Process and Quality Control
Every Chenghui PDC drill bit follows strict manufacturing procedures:
Raw Material Selection
Only 100% new virgin raw materials are selected for production.
CNC Machining
High-precision machining ensures accurate dimensions.
Cutter Installation
Professional positioning guarantees stable cutting performance.
Welding & Inspection
Dimension inspection, cutter inspection, welding quality inspection, and final performance inspection.
Why Choose Chenghui Four-Wing PDC Drill Bits?
Factory Direct Supply
Direct manufacturer with competitive pricing and stable production capacity.
Professional Experience
Specialized in drilling tools production since 2008.
Customized Solutions
OEM and customized designs available.
Reliable Quality
Using new raw materials and strict quality control.
Global Export Capability
Providing drilling tools solutions for customers worldwide.
Conclusion: Reliable PDC Drill Bit Solutions from China Manufacturer
The four-wing concave PDC drill bit is an efficient drilling solution for various rock drilling applications, including grouting, gas drainage, slope support, anchoring, water wells, and geothermal projects.
With optimized cutter configuration, durable PDC materials, customized sizes, and factory-direct manufacturing, Chenghui Drilling Tools provides reliable drilling solutions for global customers.
Contact Chenghui today for customized four-wing and three-wing PDC drill bits from a professional Chinese manufacturer.
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