8 1/2″ (215.9mm) Tricone Cutter Section
Single Roller Cone for HDD & Foundation Drilling
🔷 Product Overview
The 8 1/2″ (215.9mm) Tricone Cutter Section manufactured by Chenghui Drilling Tools Manufacturing Co., Ltd is designed for demanding drilling applications including HDD hole openers, foundation piling, core barrels, water well drilling, mining and trenchless drilling projects. Manufactured with premium alloy steel and high-quality tungsten carbide inserts, this single roller cone cutter delivers excellent wear resistance, superior rock crushing efficiency and stable drilling performance in soft, medium and hard formations. Our tricone cutter sections are widely used by drilling contractors, foundation engineering companies and HDD drilling operators worldwide due to their reliable bearing system, strong gauge protection and long service life.
Premium Tungsten Carbide Inserts
High-strength inserts provide excellent cutting performance and resistance against abrasion and impact.
Sealed Journal Bearing
Advanced elastomer sealed journal bearing reduces friction, improves lubrication and extends life.
Optimized Cutting Structure
Conical crushing structure improves rock breaking efficiency and penetration rates.
Strong Gauge Protection
Hardfacing and carbide protection on shirttail and gauge minimize wear.
📊 Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | Tricone Cutter Section / Single Roller Cone Cutter |
| Size | 8 1/2″ (215.9mm) |
| Cutter Type | TCI Roller Cone Cutter |
| Bearing Type | Journal Bearing |
| Seal Type | Elastomer O-Ring Seal |
| Cutting Structure | Conical Tungsten Carbide Inserts |
| Material | Alloy Steel + Tungsten Carbide |
| IADC Code | 637 |
| Application | HDD, Foundation Drilling, Water Well, Mining |
| Formation Type | Medium Hard to Hard Formations |
| Processing Type | Forging |
| Connection | Customizable |
| Color | Customized |
| OEM Service | Available |
| Certification | ISO / API Standard |
| Packaging | Export Plywood Case |
🛠️ Applications & Suitable Formations
Applications
- HDD Hole Openers
- Foundation Piling
- Core Barrel Drilling
- Water Well Drilling
- Geothermal Drilling
- Mining Exploration
- Trenchless Drilling Projects
- Rock Reaming Operations
Suitable Formations
Typical formations include limestone, sandstone, shale, mudstone, granite and fractured rock formations. The IADC 637 design is optimized for medium-hard to hard rock with moderate to high compressive strength.
🔥 Product Advantages
Longer Service Life
Premium wear-resistant materials improve durability under extreme drilling conditions.
Higher Drilling Efficiency
Optimized cutter arrangement increases penetration rate and drilling stability.
Reduced Operational Cost
Longer bit life and lower replacement frequency reduce overall drilling expenses.
Custom Engineering Support
Customized cutter configurations available according to formation and drilling requirements.
🏭 Why Choose Chenghui Drilling Tools Manufacturing Co., Ltd
OEM & Custom Manufacturing
Customized sizes, cutter structures and welding configurations available.
Strict Quality Control
ISO / API standards. 100% inspection before shipping.
Fast Delivery
Stock items ship within 7-10 days. Secure export packaging.
Stable Product Performance
Proven performance in global drilling projects.
Competitive Factory Pricing
Direct from manufacturer – best value.
Professional Technical Support
Expert advice for formation-specific cutter selection.
📦 Packaging & Delivery
Secure international shipping packaging
Flexible logistics options
Custom branding supported
📞 Request a Quote for 8 1/2″ Tricone Cutter Section
Tell us your application, formation type, and quantity. We’ll respond within 24 hours.
✅ OEM support | ✅ Custom sizes | ✅ Fast delivery worldwide
📞 Contact Our Engineers
❓ Frequently Asked Questions
It is mainly used for HDD hole openers, foundation piling, core barrels and rock reaming applications.
Yes. Customized sizes, cutter structures and welding configurations are available based on your requirements.
Suitable for soft, medium and hard rock formations depending on the selected insert structure and IADC code. IADC 637 is optimized for medium-hard to hard rock.
Yes. OEM manufacturing and customized branding services are supported.
Our products are manufactured according to ISO and API quality standards.
Standard cutter sections are typically in stock and ship within 7-10 days. Custom orders: 20-25 days.
🛠️ Explore Our Full Range of Drilling Tools
PDC Drill Bits
For soft to medium-hard formations
TCI Tricone Bits
IADC 517, 537, 637, 737 series
Steel Tooth Bits
IADC 115, 125, 135 for soft formations
Core Drill Bits
Wireline coring for exploration
DTH Hammers & Bits
High air pressure drilling tools
Drilling Rigs Accessories
Swivels, subs, stabilizers
