Besides threaded button bits, ProDrill also offer other accessories like Drill
rods, Coupling, Shank Bar to form a full set of rock drilling working for top
hammer.
First, we talk about threaded drill rods, there are 2 kinds of R type rod, T
type rod, round, Hexagonal rod, MM rod, MF rod ( Speed rod ) , Extension rod, Top Hammer Drill Rod. Threaded Drill Rods
Drifting rod ( Application ), Length size : 1525mm, 3050mm, 3660mm, as
main size in market. For the more
details, the follows is for your reference.
ProDrill Offers a extensive of drill rods for quarrying, mining and
construction. Our drill rod through
perfect surface carburized heat treatment,
having high bending stiffness capable of sustaining high impact waves.
Our drill rods are made from premium quality steel. They are manufactured in a
controlled environment using advanced heat treatment procedures.
ProDrill jack hammer / top hammer drill rods have been used extensively
for more than 10 years now in international mining market such as Canada,
Norway, Spain, Chile, Russia etc . Our rods are well suited for heavy duty open
cast/underground mining, quarry and civil engineering applications.
We has classified the drill rods based on the thread and the rod profile.
A) Categorization based on thread
• Rope Thread (R) Thread, such as R22, R25, R28, R32. • Trapezoidal Thread (T) Thread like T38, T45, T51, GT60, ST58, ST68.
R
thread & HM (T) Thread The key characteristics of these threads has been listed below
R Thread
Has good wear properties • It is ideal for single pass or short hole drilling such as underground tunneling application that require infrequent uncoupling • It is available in sizes 22 mm-38 mm
T Thread
• This type of thread has a greater torque transferring capacity • It is ideal for extension drilling with multiple steel • It is available in size 38 mm, 45 mm, 51 mm and 60 mm
B) Categorization based on rod profile • Hexagonal Rods, working for drifting and tunneling, quarrying. • Round Rods , design for bench drilling, long-hole drilling
Hexagonal Rods & Round Rods The key characteristics of these rods have been listed below:
These rods are typically more
heavier than round rods and transfer energy more efficiently • They have better flushing characteristics especially with horizontal drilling • The rigidity of their cross section makes it possible to use a larger thread
• They are available in large cross-sectional diameters • Typically lighter than hexagonal rods of an equivalent size
c) Thread type with or without coupling,
If with coupling, drill rod with male to male thread type we call them M-M
Rod, extension rod. If without coupling, drill rod with female to male thread type we call
them MF rod, or speed rod, now more and more miner like to use MF rod in
drilling and blasting for mining.
Drill rod categorize and its application are as listed :
For small hole drilling/working for quarry, construction, and underground
applications, hand held
drilling/demolition work you can use : Chisel type integral drill
rods, plug-hole rods , tapered drill rod, above we already introduce. Extension Drill rods, MF rod suitable for long hole drilling and bench
drilling applications, you can choose T type thread, Round shape, T38, T45, T51, GT 60 drill tube , MF Rod, Extension MM rod. Speed Rod.
Small Hole Drilling- Extension Drilling Tools, like R22, 23, 25, 28, you choose MF, MM rod, Shank rod, shank adapter, Drifter Drill rods , Hexagonal rod, used for drifting and tunneling
applications, like R32, R28,
Second, ProDrill can supply semi-bridge, full- bridge type coupling sleeves, thread adapter, cross over bit adapter, coupling adapter, bit adapter etc.
Semi-bridge type coupling, Dia 72 mm-76mm for T51, length 225mm,
Full- bridge type coupling, Dia 72mm for T51, length 250,
Bit adapter has two types: one is with one end female, male thread type for other end like R32 -T45, R38-T45, T51-T45 etc. Diameter scope : 44mm - 72mm, length 285mm - 360mm, we call cross-over bit adapter, another is we call Thread adapter for two ends like T38, T45, T51
Guide coupling, coupling adapter also available
Third, now ProDrill can provide a comprehensive range of strike bar, shank adapter for current popular drill rig brand like Sandvik Tamrock, , Atlas Copco, Furukawa, Ingersoll-Rand. etc.
Bit +Drill rod + coupling + shank adapter as a standard drill string configuration