Domed Button Bits

SHANDIKE Domed Button Bits Technical Specifications

Product Overview:
As a critical component of professional reaming drilling systems, SHANDIKE Domed Button Bits are engineered for multi-stage borehole enlargement operations. Utilizing an advanced secondary hole-forming process, these bits are designed to achieve precise large-diameter drilling after pilot holes are completed to target depths. The stepwise reaming technology ensures compliance with specialized requirements for graded borehole expansion in mining, tunneling, and other industrial applications.

Technical Parameters:
Thread Connection System:
– Standard thread specifications: R28, R32, R35, R38 series
– Heavy-duty thread specifications: SSR28, SSR32, SSR35 series
– Deep-hole specialized threads: T38, T45, T51 series
Operational Diameter Range:
76mm–152mm (custom non-standard sizes available upon request)

Core Features:
1. Precision Manufacturing:
– High-temperature mounting process integrates tungsten carbide buttons into the bit body, ensuring assembly accuracy within 0.05mm.
– Monolithic alloy steel body treated with vacuum quenching, achieving hardness of HRC 45-50.

2. Engineering Adaptability:
– Customized button configurations (Standard/Extended/Reinforced) for diverse geological conditions.
– Streamlined debris discharge groove design enhances cuttings removal efficiency.
– Optimized stress distribution structure extends fatigue resistance.

3. Performance Advantages:
– 35%+ increase in drilling speed compared to conventional cross bits.
– Single-pass reaming depth up to 30m (rock hardness f=8–12).
– Average service life of 1,500 linear meters in granite formations.

4. Quality Assurance:
– Bit body material: 42CrMo high-strength alloy steel.
– Buttons: YG15C ultra-fine grain tungsten carbide alloy.
– 100% compliance with 3D coordinate inspection and non-destructive testing.

Typical Applications:
This product series is ideal for drilling operations requiring precise blast control in scenarios including but not limited to:
– Underground mine roadway development (shafts/inclines/tunnels).
– Smooth blasting operations in transportation tunnels.
– Bench drilling in quarrying operations.
– Pre-splitting blasting for foundation engineering.
– Diversion tunnel excavation in hydropower projects.

With scientific button layout design and a modular connection system, SHANDIKE Domed Button Bits deliver exceptional drilling accuracy while significantly improving operational efficiency in complex geological formations. This results in enhanced cost-effectiveness and engineering value for large-scale drilling projects

Notice: There is a chance that SHANDIKE may make changes on above-mentioned information. Product pictures and parameters about models, data, performances and specifications on this website are for reference only.