R32 Drifting Tunnelling Speed Threaded Drill Rod ,Deifter Rod With
610-6400mm Length
Thread drill rod other names extension rod, Extension drill steel,
Extension drill rod, and Extension steel, M/F rod ( Speedrod ) ,
Produce Hexagonal and round cross sections, Hexagon rods are more
rigid, heavier and transfer energy more efficiently, while
increasing flushing. Round rods are generally lighter than
hexagonal rods and are normally used in extension drilling
applications. With the longer steel tending to be larger in
diameter, conventional extension steel is characterized by a
duplicate thread on each end of the steel.
Extension rods are made by hollow drill steels; there are two
shapes of extension rods, round type and hexagonal type. This
hollow hole are usually named flushing hole, used for transmitting
water or air during drilling. And the threads can be used for
connecting couplings, shanks, couplings or bits.
Usually for extension rods, there are R22, R25, R28, R32, R38, T38,
T45, T51, ST58, T60 threads, and different lengths of rods are
available from 600mm to 6400mm usually.
Hexagonal cross sections rods are more rigid, heavier and transfer
energy more efficiently, while increasing flushing.
Round rods are generally lighter than hexagonal rods and are
normally used in extension drilling applications.
With the longer steel tending to be larger in diameter,
conventional extension steel is characterized by a duplicate thread
on each end of the steel.,
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
High strength chromium-molybdenum steel with high fatigue strength
and excellent wear resistance
Type: Hex. Drifter Rod, Extension Rod, Speed Rod, MF-Rod
Color: Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
1. High precision in size and shape
2. Good low temperature toughness
3. Excellent comprehensive mechanical properties
4. High connection strength and sealability
5. Large inside diameter of tool joint
6. High torque resistance
7. High fatigue strength and long fatigue life
R32 Thread drill rod
In our after sales service system, We establish perfect control
system strictly according to ISO-9000 series, in this system,
technology date and problem solve solution and preventive measures
will be provided in any maintain project, all the spare parts will
be used in new OEM products with installation instructions, packing
list, manufacturer's instruction, qualification and Warranty
certificate.
We provide "one equipment & one case, endless service, namely the
after sales service begin from the order confirmation, last for the working life of the equipment.
