Blog - Rock Drilling Tool Manufacturer

SINODRILLS sincerely invites you to BAUMA China 2024 in Shanghai

We warmly welcome you to the upcoming International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles – BAUMA China 2024 in Shanghai.

What Everyone Ought to Know About the History of DTH Hammers?

Explore the evolution of DTH hammers from their invention in 1932 to modern advancements, including valveless designs and high-pressure capabilities, enhancing drilling efficiency.

2 Different Designs of DTH Hammers

This article compares two DTH hammer designs: with foot valves for harder rock (higher force, lower frequency) and without foot valves for faster drilling in softer rock (higher frequency).

2 Heat treatment methods for tapered drill rods

Learn about two heat treatment methods for tapered drill rods: high-frequency induction for flexibility and carburization for enhanced hardness and wear resistance.

How to Choose Correct DTH Hammers?

Learn how to select the right DTH hammer by considering working air pressure: low (below 7 bar), medium (7–14 bar), or high (above 14 bar) for optimal drilling performance.

How to select correct carbides for DTH button bits?

Learn to select the right carbide button shape—conical, ballistic, semi-ballistic, or hemispherical—for DTH bits to optimize drilling efficiency and tool longevity.

3 Ways to Produce Self-drilling Anchor Bars

Explains cold, hot, and warm rolling methods for making self-drilling anchor bars, comparing strength, ductility, precision, and suitability for different needs.

3 Methods of Inserting Carbide Buttons For Button Bits

Explore three methods for inserting carbide buttons in button bits: copper brazing, cold pressing, and hot pressing, each offering different benefits in terms of cost and durability.