T51 extension MF and guid tube drill rod for mining

The body of the T51 series extension drill rod is forged from carbon steel or alloy steel, resulting in a denser and tougher microstructure compared to casting, which extends its service life.

Description

T51 Series Extension Drill Rod

The T51 series extension drill rod achieves a balance between a hard, wear-resistant surface and a tough, shock-absorbing core through advanced carburizing heat treatment technology, significantly improving fatigue resistance.

T51 Extension Drill Rod Specifications

  1. Male thread (external thread) T51 round 52 mm to male thread (external thread) T51.
  2. Female thread (internal thread) T51 round 52 mm to male thread (external thread) T51.
  3. Female thread (internal thread) T51 round 76 mm and 87 mm to male thread (external thread) T51 guide tube.

Technical Information of T51 Extension Drill Rod

  • Length: 3660 mm, 4265 mm, 4877 mm, 6095 mm, etc.
  • Weight: Range from 50.8 kg to 88.8 kg.
  • Material: High-strength alloy structural steel, 23CrNi3Mo
  • Manufacturing Processes: Forging, full carburizing, high-frequency treatment, and phosphating.
Technical Parameters
T51 extension MF and guid tube drill rod for mining
Extension rodL (mm)L (foot, inch)D (mm)D (inch)Order numberWeight (kg)

T51-Round52-T51

T51-Round52-T51

366012'522280-5236-787850.8
426514'522280-5242-787859.5
609520'522280-5260-787885.6

T51-Round52-T51 MF rod

T51-Round52-T51 MF rod

366012'522290-5236-787853.9
426514'522290-5242-787862.6
533517', 6 1/8″522290-5253-787877.7
609520'522290-5260-787888.8

T51-Round76(87)-T51 Guide tube

T51-Round76(87)-T51 Guide tube

366012'763200-7636-787879.1
366012'873 1/2200-8736-787880.0