The round cross sections are more prevalent for extension drilling applications. A round rod has less material and thus is lighter to handle and less expensive than an equivalent size hexagonal rod. While hexagonal rod is particularly advantageous for drifting and tunneling drilling. The increased rigidity of hexagonal drill rods enables them to abating hole-deviation and enhances flushing for cleaning holes. Even with the larger cross section, hexagonal steel can still accommodate the same diameter bit as that of an equivalent round steel.
M/f rods provides tighter connections and is easier for handling and quicker for uncoupling than m/m rods, and are potential to drill straighter holes.
Carburization technique is mainly used in the production of big diameter rods to ensure excellent performance. Carburizing is for hardening entire rod to provide an external over entire rod surface area. Carburized steels are used primarily in underground applications and where water is used as a flushing medium. High frequency technique is primarily used in the production of small diameter rods to reduce fragileness of drill steels. High frequency is for hardening only the thread ends of the rod. This provides the longevity of the product as well as being more suitable for more drilling condition need. Steels produced with this technics primarily used in surface drilling applications where air is the primary flushing medium. Phosphorising is to improve anti-erosion capability of the entire external rod surface area.
Product name:
Extension mf drill rod
Description:
Thread drill rod made with best quality alloy steel bar, through heat treatment like atlas.
Material:
Alloy steel bar 23crni3moa
Moq:
No moq required for testing and trial order
Body type
Round shape and
Thread type
R32, r38, t38, t45, t51, t60
Diameter
Hex25, hex28, rd32, rd38, rd45, rd51
Type
Thread extention rod or m/f rod
Length
600mm-6400mm
Product Despcription Thread Dimensions L Diemensions D Part No. mm ft in mm in R25 250 - 10 22 7/8 1022R2502 1500 4 11 22 7/8 1022R2515 2400 7 10 22 7/8 1022R2524 3200 10 6 22 7/8 1022R2532 4000 13 1 22 7/8 1022R2540 250 - 10 25 1 1025R2502 1500 4 11 25 1 1025R2515 2400 7 10 25 1 1025R2524 3200 10 6 25 1 1025R2532 2200 7 2 25 1 2125R2522 2475 8 2 25 1 2125R2524 2600 8 6 25 1 2125R2526 2800 9 2 25 1 2125R2528 3100 10 2 25 1 2125R2531 1525 5 - 25 1 2125R25MF15 1830 6 - 25 1 2125R25MF18 R28 2800 9 2 28 1 1/8 2128R32R2828 3100 10 2 28 1 1/8 2128R32R2831 3700 12 2 28 1 1/8 2128R32R2837 4310 14 2 32 1 1/4 2132R32R2843 R32 1830 6 - 25 1 1025R3218 2435 8 - 25 1 1025R3224 2950 9 7 5/8 25 1 1025R3229 3050 10 - 25 1 1025R3230 3100 10 2 32 1 1/4 2132R38R3231 3700 12 2 32 1 1/4 2132R38R3237 4310 14 2 32 1 1/4 2132R38R3243 4920 16 2 32 1 1/4 2132R38R3249 3100 10 2 35 1 3/8 2135R38R3231 3700 12 2 35 1 3/8 2135R38R3237 4310 14 2 35 1 3/8 2135R38R3243 4920 16 2 35 1 3/8 2135R38R3249 5530 18 2 35 1 3/8 2135R38R3255 3100 10 2 32 1 1/4 2132T38R3231 3700 12 2 32 1 1/4 2132T38R3237 4310 14 2 32 1 1/4 2132T38R3243 4920 16 2 32 1 1/4 2132T38R3249 3100 10 2 35 1 3/8 2135T38R3231 3700 12 2 35 1 3/8 2135T38R3237 4310 14 2 35 1 3/8 2135T38R3243 4920 16 2 35 1 3/8 2135T38R3249 5530 18 2 35 1 3/8 2135T38R3255 3100 10 2 32 1 1/4 2032R32MF31 3700 12 2 32 1 1/4 2032R32MF37 4310 14 2 32 1 1/4 2032R32MF43 4920 16 2 32 1 1/4 2032R32MF49 1830 6 - 32 1 1/4 2032R3218 2435 8 - 32 1 1/4 2032R3224 2950 9 7 5/8 32 1 1/4 2032R3229 3050 10 - 32 1 1/4 2032R3230 R35 4310 14 2 35 1 1/4 2135T38R3543 4920 16 2 35 1 1/4 2135T38R3549 5530 18 2 35 1 1/4 2135T38R3555 T38 3050 10 - 32 1 1/4 2132T3830 3660 12 - 32 1 1/4 2132T3836 3050 10 - 38 1 1/2 2038T3830 3660 12 - 38 1 1/2 2038T3836 4270 14 - 38 1 1/2 2038T3842 4880 16 - 38 1 1/2 2038T3848 5490 18 - 38 1 1/2 2038T3854 900 3 - 38 1 1/2 2038T38MF09 1220 4 - 38 1 1/2 2038T38MF12 1525 5 - 38 1 1/2 2038T38MF15 1830 6 - 38 1 1/2 2038T38MF18 2440 8 - 38 1 1/2 2038T38MF24 3050 10 - 38 1 1/2 2038T38MF30 3660 12 - 38 1 1/2 2038T38MF36 T45 3050 10 - 45 1 3/4 2045T4530 3660 12 - 45 1 3/4 2045T4536 4270 14 - 45 1 3/4 2045T4542 4880 16 - 45 1 3/4 2045T4548 6100 20 - 45 1 3/4 2045T4561 1525 5 - 45 1 3/4 2045T45MF15 1830 6 - 45 1 3/4 2045T45MF18 3050 10 - 45 1 3/4 2045T45MF30 3660 12 - 45 1 3/4 2045T45MF36 4270 14 - 45 1 3/4 2045T45MF42 T51 3660 12 - 51 2 2051T5136 4270 14 - 51 2 2051T5142 6100 20 - 51 2 2051T5161 1525 5 - 51 2 2051T51MF15 1830 6 - 51 2 2051T51MF18 3660 12 - 51 2 2051T51MF36 4270 14 - 51 2 2051T51MF42 GT60 3660 12 - 60 2 3/5 2060T60MF36 4270 14 - 60 2 3/5 2060T60MF42 6100 20 - 60 2 3/5 2060T60MF61
One end connect with the shank end, the other end connect with bit end. Transmit the impacting power and torque from shank to bit, the lifespan depends on the material, thread processing. ï?¬ Made from the same steel as Sandvik; 23CrNi3Mo, which is in same league as Sandvik Sandbar 64, is applied as drill rod material. ï?¬ Friction welding workmanship . It makes the thread and the body integrated without broken. ï?¬ Advanced production process: produced by CNC machining and advanced heat treatment. It will connect the drill rod and the drill bit more better. â?¢ Optimize processing procedure, entirely automatic threading equipment to finish the thread naturally and reduce the concentration of stress. ï?¬ Full-carburization drill rod for high wear-resistance and strength. Carburizing process is applied to promote surface hardness, thus grant better wearing quality and lifespan for the drill rods; ï?¬ Quality close to world famous brands, but our prices are much more competitive. ï?¬ Complete types of drill rod for various drilling scenarios. Advanced engineering, precision manufacturing and high-grade materials assures the reliable quality of our drill rod. When you send inquiry, please tell the information as following: Diameter + length +thread
Male/female (m/f) rod, speed rod M/f drill steel is an alternative to couplings sleeves to include the female part of the threaded connection as an integral part of the drill steel. M/f drill steel provides more rigid connections and is easier to uncouple and handle. The service life also tends to be better than with separate couplings. The advantages of drilling with m/f steel include: easy handling, quicker uncoupling, tighter connections, the potential to drill straighter holes, and longer service life. Extension rod size Mf-rod r32-round32-r32, length 3 4 5 6 10 12 14 ft Mf rod t38-round39-t38, length 4 5 6 10 12 14 ft Mf rod t45-round46-t45, length 5 6 10 12 14 20 ft Package: in wooden case or in bundles.
Length: 1220mm-3660mm. Thread: r, t. Fushing hole: 9mm-16mm.
Supplier: Rock drilling tools, extension drill rod, button bits, taper rod, shank adapter, MF drill rod, integral drill rods, coupling sleeves, pneumatic picks, shovels, hammers.
The pneumatic pick is a tool with compressed air as its power. The compressed air is distributing alternatively through the tube-shaped distributing valve into either end of the cylinder, so that the hammer is reciprocating motion in it, which impacts the tail-end of the pick rod and drives the pick rod into the rock or strata of mine, thus causing them to split into pieces.
Drill Rods
Drill Rods
DRILL RODS: The tool steel drill rod pieces (O-1, A-2, D-2, H-13, S-7, M-2, and W-1) are usually machined in the annealed state and then heat treated to make hardened, long lasting tools. The Applications Table below shows the classes, steel grades, hardening methods, and typical applications for Drill Rod. To use the table, find the class in the left column. To find out what is drill rod used for, find the steel grade in the table below and read the applications in the right column of the same row. DRILL PIPES: Available Ranges: Sizes : 3",3 ½", 4 ½" & 5 ½" Length : 5', 10', 13', 15', 20' & 30'
