T45 Drilling Extension Rods Shank Button Bits For Drifting And Tunelling Drilling
Products Description
The drill rod adopts a T-shaped thread, which is more favorable for loosening and unloading of the joint portion, and has a larger pitch and a thread side angle than the R-shaped thread. The threaded portion has excellent wear resistance and high connection performance, and is matched with high power and high rotation. Torque rock drill.
T-threaded connections are ideal for use with multiple drill rods. They are specially developed for high-performance drills with large diameter bores. The drill rods are more rigid and help prevent bore deflection. Compared with the standard thread, the tapered trapezoidal thread uses 23%-30% more material than the normal R-type thread, and has better wear resistance and strength.
With the fast female threaded interface, the connection speed is fast, easy to disassemble and install, and its service life is longer than that of the separate connection. The connection is more tight and the drilling is more excellent.
Products Advantage
Advantage:
*Material are developed by cooperated with National & Local Joint Engineering Laboratory for High-performance Metal Structure Materials and Advanced Manufacturing Technology to improve the fatigue resistance of drilling steel.
*Material is from Baosteel with strict process of steel smelting and rolling: Refining - Vacuum - Continuous casting - drilling hole method - surface peeling to control the content of non metallic inclusion and harmful element.
*Strictly control precision thread process to avoid thread too hot and broken effected by the high vibration and shaking of thread part when it works.
*Heat treatment: Fully Carburization - Air cool quenching - tempering. It make the rod keep high toughness and improve surface harness and whole strength as well.
*Thread strengthen: enhance the thread parts to improve the wear-resistance and longevity of the rod.
Products Photos:
Quality warranty:
Our products are made of high quality steel and all spares are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Production time:
Generally, Production time is 15 -25 days.
Transportation:
By air, By Express or By sea according to your requests.
