Factors to Consider When Choosing Button Bits for Rock Cutting
When selecting button bits for rock cutting, several key factors should be taken into consideration. These factors include:
- Rock Formation: Understanding the geological composition of the rock formation is crucial for choosing the most suitable button bits. Factors such as hardness, abrasiveness, and brittleness should be evaluated.
- Project Requirements: Consider the specific demands of your project, including required drilling speed, hole diameter, and desired cutting precision.
- Bit Design: The design of button bits varies, and each design has its advantages and limitations. Assess factors such as bit face shape, button arrangement, and flushing holes to determine the most appropriate design for your needs.
- Bit Size and Shape: The size and shape of the button bits should be chosen based on the desired hole diameter and the operational capacity of your drilling equipment.
Types of Button Bits and Their Applications
There are several types of button bits available, each designed for specific rock cutting applications. Understanding their characteristics and applications can help you make an informed choice. Some common types include:
- Tapered Button Bits: These are widely used for general-purpose drilling and are suitable for various rock formations.
- Retractable Button Bits: Designed for deeper drilling and hard rock formations, retractable button bits offer enhanced penetration rates and durability.
- Threaded Button Bits: These bits are popular for their versatility and compatibility with different drilling systems, making them suitable for a wide range of rock types.
Small Hole Rock Drilling Tools Specification |
Tapered Drill Bit |
Taper | 7°, 11°, 12° |
Head Diameter | 28mm~48mm |
Bit Type | Tapered rock bit,Chisel bit(Oblique chipways chisel bit,Flat chipways chisel bit,Oblique-flat chipways chisel bit),Cross-type bit,Short skirt,Long skirt |
Tapered Drill Rod |
Taper | 7°, 11°, 12° |
Rod Diameter | Hex22, Hex25 |
Length | 400mm~5500mm |
Integral Drill Rod |
Bit Diameter | 24mm~40mm |
Rod Diameter | Hex19, Hex22 |
Shank Length | 108mm |
Effective Length | 400mm~6400mm |