Tunneling Mining Drill Steel Rod / Rock Drill Rod 10 Feet Length High Precision

Brand Name:MIROC Extension Rod
Model Number:T38 Extension Rod
Minimum Order Quantity:10 Pieces T38 Extension Rod
Delivery Time:15-20 days Production
Place of Origin:China
Price:negotiation
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Location: Beijing Beijing China
Address: Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
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T38 Threaded Drill Rod


T38 Thread 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 RodLengthDiameterWeightPart Number
mmfootmminchkg
Extension rod, T38-Round39-T38 Flushing hole 14.5mm Wrench flat 32mm12204391 5/910.2ER39-T38-1220
15255391 5/912.8ER39-T38-1525
18306391 5/915.3ER39-T38-1830
24358391 5/920.4ER39-T38-2435
305010391 5/925.5ER39-T38-3050
366012391 5/930.9ER39-T38-3660
396513391 5/933.2ER39-T38-3965
427014391 5/935.7ER39-T38-4270
488016391 5/941.0ER39-T38-4880
553018 1/7391 5/946.3ER39-T38-5530
609520391 5/950.9ER39-T38-6095
MF-rod T38-Round39-T38 Flushing hole 14.5mm9153391 5/910.7MF39-T38-915
12204391 5/913.3MF39-T38-1220
15255391 5/915.8MF39-T38-1525
18306391 5/918.3MF39-T38-1830
305010391 5/928.5MF39-T38-3050
366012391 5/933.6MF39-T38-3660
427014391 5/938.7MF39-T38-4270
488016391 5/943.7MF39-T38-4880
553018 1/7391 5/949.2MF39-T38-5530
609520391 5/953.9MF39-T38-6095
Hex extension rod, T38-Hex32-R38 Flushing hole 9.6mm12204321 1/48.6ERH32-T38-1220
18306321 1/412.6ERH32-T38-1830
24358321 1/416.6ERH32-T38-2435
305010321 1/420.8ERH32-T38-3050
366012321 1/424.9ERH32-T38-3660
Guide speed rod, T38-Round46-T38 Flushing hole 17mm18306461 4/523.5GR32-T38-1830
305010461 4/537.2GR32-T38-3050
366012461 4/544.0GR32-T38-3660
427014461 4/550.9GR32-T38-4270
488016461 4/557.7GR32-T38-4880
553018 1/7461 4/565.0GR32-T38-5530
609520461 4/571.3GR32-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

China Tunneling Mining Drill Steel Rod / Rock Drill Rod 10 Feet Length High Precision supplier

Tunneling Mining Drill Steel Rod / Rock Drill Rod 10 Feet Length High Precision

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