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Round Hex MF Extension Threaded Drill Rod T38 1220mm For Quarrying Tunneling Blasting

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Round Hex MF Extension Threaded Drill Rod T38 1220mm For Quarrying Tunneling Blasting

Brand Name : MIROC Extension Rod

Model Number : T38 Extension Rod

Place of Origin : China

MOQ : 10 Pieces T38 Extension Rod

Price : negotiation

Supply Ability : 20000 pieces per month

Delivery Time : 15-20 days Production

Packaging Details : Carton Box or Wooden Box

Payment Terms : L/C, T/T

Certification : ISO

Name : Extension Rod / Drill Rod

Thread : R25,R28,R32,R38,T38,T45,T51

Length : 10 Feet (3050mm)

Diameter : Hex25 Hex28 Rd32 Rd39 Rd46 Rd52

Material : 23CrNi3Mo

Application : Tunneling, Mining,Quarrying

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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:

Round Hex MF Extension Threaded Drill Rod T38 1220mm For Quarrying Tunneling Blasting

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


Product Tags:

Threaded Drill Rod

      

Drill Rod Threaded

      

drill extension rod

      
China Round Hex MF Extension Threaded Drill Rod T38 1220mm For Quarrying Tunneling Blasting wholesale

Round Hex MF Extension Threaded Drill Rod T38 1220mm For Quarrying Tunneling Blasting Images

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