Product Overview

The BF70 Rotary Drilling Bucket Tooth is a heavy-duty flat cutting tooth designed for foundation drilling, piling construction, trenching, and rotary drilling applications.

Engineered for soft to medium geological formations, the BF70 is widely used on:

Rotary drilling rig cleaning buckets
Soil drilling buckets
Sand drilling buckets
Diaphragm wall grabs
Foundation drilling attachments

Featuring a tungsten carbide reinforced cutting edge, the BF70 provides excellent abrasion resistance and extended wear life in demanding drilling environments.

The tooth body is manufactured from high-strength forged alloy structural steel and precision heat-treated to achieve superior impact resistance, fatigue strength, and durability under high rotational torque and continuous excavation loads.

With its optimized 70mm flat spade cutting profile, the BF70 delivers efficient soil scraping performance, improved hole cleaning capability, and reduced drilling resistance, making it an ideal solution for foundation contractors requiring reliable rotary drilling spare parts.

Key Features and Structural Advantages

1. Tungsten Carbide Reinforced Cutting Edge

The BF70 features hardened tungsten carbide inserts brazed along the cutting edge to improve wear resistance and cutting performance.

The carbide-reinforced design provides:

Superior abrasion resistance
Faster material cutting
Extended service intervals
Improved performance in sandy and abrasive formations
Reduced tooth replacement frequency

This reinforcement system helps maintain consistent cutting efficiency during continuous drilling operations.

2. 70mm Flat Spade Cutting Design

The optimized 70mm wide flat tooth profile provides excellent scraping and cleaning performance.

Key advantages include:

Larger soil contact area
Efficient removal of loose materials
Improved bottom-hole cleaning
Reduced drilling resistance
Protection of the drilling bucket base plate

Compared with traditional pointed teeth, flat cutting teeth are especially effective for soil excavation, sand layers, clay formations, and trenching applications.

3. Precision Pin Locking System

The BF70 is designed with a precision center locking hole compatible with standard rubber-locked flex pin systems.

Benefits include:

Secure tooth installation
Fast field replacement
Reduced downtime during construction
Reliable retention under vibration and drilling impact
Improved operating safety

The optimized locking structure ensures stable performance during long drilling cycles.

4. Optimized Scraping Geometry

The BF70 features an engineered cutting contour designed to minimize resistance and improve excavation efficiency.

The optimized geometry helps:

Reduce clay adhesion
Improve soil flow around the tooth
Increase drilling productivity
Lower machine load
Maintain smooth cutting performance

This design is particularly effective in cohesive soils and mixed ground conditions.

Technical Applications and Operating Conditions

The BF70 Flat Rotary Drilling Tooth is designed for efficient performance in soft to medium ground conditions.

Recommended Geological Formations:

Typical Applications

The BF70 is widely used in:

Its flat scraping design makes it especially suitable for:

Bottom cleaning of drilled shafts
Precision trench excavation
Soil removal in foundation projects
Efficient material discharge from drilling buckets

By improving excavation efficiency and reducing wear costs, the BF70 helps contractors achieve lower operating costs per meter drilled.

Compatible Equipment

The BF70 rotary drilling bucket tooth is suitable for:

Compatible with BF70/BHR70 tooth holder systems and commonly used on rotary drilling rigs from major manufacturers.

Operation and Maintenance Guidelines

1. Proper Holder Installation

Always install BF70 teeth into compatible BF70/BHR70 tooth holders.

Before installation:

Remove dirt and drilling residue from the holder pocket
Check holder wear condition
Ensure correct tooth alignment

Proper installation prevents premature wear and tooth failure.

2. Secure Pin Locking

Use original locking pins and rubber retaining rings to ensure reliable tooth fixation.

Make sure:

The locking pin passes completely through the tooth hole
The retaining system is properly seated
The tooth cannot move excessively inside the holder

A secure locking system reduces the risk of tooth loss during drilling operations.

3. Regular Wear Inspection

Inspect BF70 teeth regularly during operation.

Replace the tooth when:

Tungsten carbide inserts are significantly worn
The cutting edge becomes ineffective
The tooth body becomes excessively thin
Holder damage may occur

Timely replacement protects expensive drilling buckets and reduces unexpected downtime.

Why Choose BF70 Rotary Drilling Bucket Tooth?

The BF70 Rotary Drilling Bucket Tooth combines carbide reinforcement, forged steel strength, and optimized flat cutting geometry to provide reliable performance in foundation drilling applications.

Key advantages:

Tungsten carbide reinforced cutting edge for extended wear life
70mm flat spade design for efficient soil scraping
High-strength alloy steel body for impact resistance
Precision pin locking system for secure installation
Optimized geometry for reduced drilling resistance
Designed for foundation piling, trenching, and rotary drilling applications

The BF70 provides contractors with a durable and cost-effective drilling solution for soft ground, clay, sand, gravel, and mixed geological conditions.