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Address: Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
Contact name:Yingkai Zhang
KSQ Technologies (Beijing) Co. Ltd |
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T38 Threaded Drill Rod
T38 drill rod, other names are extension drill steel, extension drill rod, and Extension steel, M/F rod (Speed rod).
Two Type: Hexagonal and round cross-sections.
Hexagonal 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 the duplicate thread on each end of the steel.
Extension rods are made by hollow drill steels, different lengths are available from 600mm to 6400mm.
This hollow hole is usually named flushing hole, used for transmitting water or air during drilling.
And the threads can be used for connecting couplings, shanks adapters or button bits.
Extension rods Specification:
T38-Round39-T38,
length1220mm/1525mm/1830mm/2435mm/3050mm/3660mm/3965mm/4270mm/4880mm/5530mm/6095mm
Double thread extension rods, T38-Round39-T38, length 3050mm/3660mm
MF rods, T38-Round39-T38,
length915mm/1220mm/1525mm/1830mm/3050mm/3660mm/4270mm/4880mm/5530mm/6095mm
Guide speed rods, T38-Round46-T38, length
1830mm/3050mm/3660mm/4270mm/4880mm/5530mm/6095mm
Guide tube, T38-Round56-T38, length
1220mm/1525mm/1830mm/3050mm/3660mm/4920mm
Hex extension rods, T38-Hex32-T38, length
1220mm/1830mm/2435mm/3050mm/3660mm
1. T38 Extension Rod round 10 Feet
Thread: T38
Length: 10 feet (3050mm)
Have wrench flat
Photos:
Drill rod using T38 threaded system.
Drilling precision can be further improved by using this as the first rod in a normal drill string.
Furthermore, since this is a speed rod design it will produce straighter holes and at least 10% higher penetration rate in good rock conditions compared to rod and coupling sleeve combination system.
Widely used in drifting, tunneling, benching, and long hole drilling
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
T38 Extension Rod Specification
| THREADED ROCK DRILLING TOOLS - T38 | |||||||
| Extension Rod | Length | Diameter | Weight | Part Number | |||
| mm | foot | mm | inch | kg | |||
Extension rod, T38-Round39-T38 Flushing hole 14.5mm Wrench flat 32mm | 1220 | 4 | 39 | 1 5/9 | 10.2 | ER39-T38-1220 | |
| 1525 | 5 | 39 | 1 5/9 | 12.8 | ER39-T38-1525 | ||
| 1830 | 6 | 39 | 1 5/9 | 15.3 | ER39-T38-1830 | ||
| 2435 | 8 | 39 | 1 5/9 | 20.4 | ER39-T38-2435 | ||
| 3050 | 10 | 39 | 1 5/9 | 25.5 | ER39-T38-3050 | ||
| 3660 | 12 | 39 | 1 5/9 | 30.9 | ER39-T38-3660 | ||
| 3965 | 13 | 39 | 1 5/9 | 33.2 | ER39-T38-3965 | ||
| 4270 | 14 | 39 | 1 5/9 | 35.7 | ER39-T38-4270 | ||
| 4880 | 16 | 39 | 1 5/9 | 41.0 | ER39-T38-4880 | ||
| 5530 | 18 1/7 | 39 | 1 5/9 | 46.3 | ER39-T38-5530 | ||
| 6095 | 20 | 39 | 1 5/9 | 50.9 | ER39-T38-6095 | ||
MF-rod T38-Round39-T38 Flushing hole 14.5mm | 915 | 3 | 39 | 1 5/9 | 10.7 | MF39-T38-915 | |
| 1220 | 4 | 39 | 1 5/9 | 13.3 | MF39-T38-1220 | ||
| 1525 | 5 | 39 | 1 5/9 | 15.8 | MF39-T38-1525 | ||
| 1830 | 6 | 39 | 1 5/9 | 18.3 | MF39-T38-1830 | ||
| 3050 | 10 | 39 | 1 5/9 | 28.5 | MF39-T38-3050 | ||
| 3660 | 12 | 39 | 1 5/9 | 33.6 | MF39-T38-3660 | ||
| 4270 | 14 | 39 | 1 5/9 | 38.7 | MF39-T38-4270 | ||
| 4880 | 16 | 39 | 1 5/9 | 43.7 | MF39-T38-4880 | ||
| 5530 | 18 1/7 | 39 | 1 5/9 | 49.2 | MF39-T38-5530 | ||
| 6095 | 20 | 39 | 1 5/9 | 53.9 | MF39-T38-6095 | ||
| Hex extension rod, T38-Hex32-R38 Flushing hole 9.6mm | 1220 | 4 | 32 | 1 1/4 | 8.6 | ERH32-T38-1220 | |
| 1830 | 6 | 32 | 1 1/4 | 12.6 | ERH32-T38-1830 | ||
| 2435 | 8 | 32 | 1 1/4 | 16.6 | ERH32-T38-2435 | ||
| 3050 | 10 | 32 | 1 1/4 | 20.8 | ERH32-T38-3050 | ||
| 3660 | 12 | 32 | 1 1/4 | 24.9 | ERH32-T38-3660 | ||
Guide speed rod, T38-Round46-T38 Flushing hole 17mm | 1830 | 6 | 46 | 1 4/5 | 23.5 | GR32-T38-1830 | |
| 3050 | 10 | 46 | 1 4/5 | 37.2 | GR32-T38-3050 | ||
| 3660 | 12 | 46 | 1 4/5 | 44.0 | GR32-T38-3660 | ||
| 4270 | 14 | 46 | 1 4/5 | 50.9 | GR32-T38-4270 | ||
| 4880 | 16 | 46 | 1 4/5 | 57.7 | GR32-T38-4880 | ||
| 5530 | 18 1/7 | 46 | 1 4/5 | 65.0 | GR32-T38-5530 | ||
| 6095 | 20 | 46 | 1 4/5 | 71.3 | GR32-T38-6095 | ||
T38 Extension Rod
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 1220mm (T38 4 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 1525mm (T38 5 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 1830mm (T38 6 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 2435mm (T38 8 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 3050mm (T38 10 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 3660mm (T38 12 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 3965mm (T38 13 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 4270mm (T38 14 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 4880mm (T38 16 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 5530mm (T38 18 feet extension rod)
T38 Extension Rod T38-Round39-T38 Diameter 39mm Length 6095mm (T38 20 feet extension rod)
Tag: rock drill rod, drill extension rod, MF rod
