Email: sales@prodrill.com.cn
Tel:0086-18959243380
Addr: Room 805 C1 Wanda Plaza, No.5 Jinzhong Road, Huli District, Xiamen, China
Speed Rod MF T38 L1830 T38 ( 90510721 )
- Type: MF
- Thread: T38-T38
- Length: 915mm, 1220mm, 1525mm, 1830mm, 3050mm, 3660mm, 4270mm
- Shape: Round
Speed Rods , MF-Rod
as a must part of rock drilling string, is a typical and most important drill rod for top hammer surface drilling in mining.
It is common practice to bump up the drive end of drifting drill steel for added strength at the rock drill end to accommodate larger diameter and shank adapters. Drill steel of rock drilling tools is available in many standard lengths to match the drill feeds on a multitude of available drifting jumbos. A rock drill bit diameter closer to the steel diameter can be used since the coupling does not enter the hole, this enhances flushing and hole accuracy, MM Rod to MM rod / Extensiond Rod need coupling sleeves, for MF rod to MF rod is no need coupling.
T38 MF ROD with length 915mm, 1220mm, 1525mm, 1830mm, 3050mm, 3660mm, 4270mm are available for customization.
Male/Female (M/F) Steel
Male/Female 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. This is fortunate because the coupling end cannot be replaced.
The advantages of drilling with M/F extension drill steel include: easy handling, quicker uncoupling, tighter connections and the
potential to drill straighter holes.
For more details please watch PDF online: Extension Drilling Rod for Bench Drilling, Long Hole Drilling Underground Catalogue
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