Round Extension Drill Rods
Home / Products / Round Extension Drill Rods
Round Extension Drill Rods

Round Extension Drill Rods

Round Extension Drill Rods Made from the same steels as Sandvik, produced by CNC machining and advanced heat treatment.

Customized
Thread size:
R32, R38, T38, T45, T51.
Rod size:
Round 32, Round 39, Round 46, Round 52.

Round Extension Drill Rods

MIRCALE Round Extension Drill Rods
Extension drill rod transmits power from rock drill piston to rock, one side of the rod is connected to coupling or shank adapter, while the other side is connected with threaded drill rod.

Parameters
• Thread size: R32, R38, T38, T45, T51.
• Rod size: Round 32, Round 39, Round 46, Round 52.
• Length: 600mm to 6059mm.
• Slot for wrench: with or without


Features
• Carburizing process is applied to promote surface hardness, thus grant better wearing quality and lifespan for the drill rods;
• 23CrNi3Mo, which is in same league as Sandvik Sandbar 64, is applied as drill rod material.
• Cost-effective, good performance with reasonable price.
• Complete types of drill rod for various drilling scenarios.

Applications
Drilling duties in tunneling, construction, mining, quarrying, etc.

Bench and Production Rods, Extension Rods, MF(Speed) Rods

Description

Length Diameter Weight

mm

feet mm inch kg

Extension Rod

R32 - Round32 - R32

2435

8' 32 1 1/4'' 14.20

3050

10' 32 1 1/4'' 17.80

3660

12' 32 1 1/4'' 21.30

MF (Speed) Rod

R32 - Round32 - R32

3050

10' 32 1 1/4'' 17.90

3660

12' 32 1 1/4'' 21.45

4270

14' 32 1 1/4'' 25.10

Extension Rod

R38 - Round39 - R38

3050

10' 39 1 17/32'' 25.50

3660

12' 39 1 17/32'' 30.60

4270

14' 39 1 17/32'' 35.40

MF (Speed) Rod

R38 - Round39 - R38

3050

10' 39 1 17/32'' 26.50

3660

12' 39 1 17/32'' 31.60

4270

14' 39 1 17/32'' 36.40

Extansion Rod

T38 - Round39 - T38

3050

10' 39 1 17/32'' 25.50

3660

12' 39 1 17/32'' 30.60

4270

14' 39 1 17/32'' 35.40

MF (Speed) Rod

T38 - Round39 - T38

3050

10' 39 1 17/32'' 26.50

3660

12' 39 1 17/32'' 31.60

4270

14' 39 1 17/32'' 36.40

Extension Rod

T45 - Round46 - T45

3050

10' 46 1 3/4'' 35.80

3660

12' 46 1 3/4'' 43.00

4270

14' 46 1 3/4'' 50.10

MF (Speed) Rod

T45 - Round46 - T45

3050

10' 46 1 3/4'' 36.40

3660

12' 46 1 3/4'' 43.70

4270

14' 46 1 3/4'' 50.70

Extension Rod

T51 - Round52 - T51

3660

12' 52 2'' 54.20

4270

14' 52 2'' 63.50

MF (Speed) Rod

T51 - Round52 - T51

3660

12' 52 2'' 55.70

4270

14' 52 2'' 64.80

Extension Rod

R32 - Round32 - R32

915

3' 32 1 1/4'' 5.50

1220

4' 32 1 1/4'' 7.32

1525

5' 32 1 1/4'' 9.18

1830

6' 32 1 1/4'' 10.95

MF (Speed) Rod

R32 - Round32 - R32

915

3' 32 1 1/4'' 5.45

1220

4' 32 1 1/4'' 7.28

1525

5' 32 1 1/4'' 9.10

1830

6' 32 1 1/4'' 10.72

Extension Rod

T38 - Round39 - T38

1220

4' 39 1 17/32'' 9.20

1525

5' 39
1 17/32''
10.25

1830

6' 39
1 17/32''
15.30

MF (Speed) Rod

T38 - Round39 - T38

1220

4' 39
1 17/32''
9.50

1525

5' 39
1 17/32''
11.25

1830

6' 39
1 17/32''
16.30

MF (Speed) Rod

T45 - Round46 - T45

1525

5' 46 1 3/4'' 18.50

1830

6' 46 1 3/4''
22.20

MF (Speed) Rod

T51 - Round52 - T52

1525

5' 52 2'' 17.85

1830

6' 52 2'' 28.10


Drill Rods Specifications

Product

Top Hammer Rock Drilling Tool - Drill Rod

Other Names

top hammer drill rod, threaded drill rod, rock drill rod, mining drill rod, thread rock drill rod

Material

Structural Alloy Steel

Application

Tunnelling, Mining, Quarrying, Blasting and Infrastructure Construction

Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting

Thread

R22, R25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR28, SR35, EL60, EL68, etc.

Rod Type

MM rod (Male/Male thread): Extension rod, Drifter rod

MF rod (Male/Female thread): Speedrod, MF drifter rod

Drill tube, Guide tube

Body Type

Hexagonal drill rod, Round drill rod

Diameter

20mm~87mm

Length

260mm~6400mm

Custom Design

Acceptable

Please contact our sales team for more specifications.


Our advantage:
1. Enterprise group combines manufacture and international trade;
2. Strict quality controll system with perfect equipment;
3. High technology enterprise with advanced production equipments;
4. Prompt delivery and all-around after-sales service;

FAQ
A: Are you trading company or manufacturer ?
Q: We are manufacturer.

A: Do you provide samples ?
Q: Yes, of course. We welcome sample order to test and check quality.

A: Can you accept small orders?
Q: We enjoy to cooperate with all clients whatever big or small order.

A: Could you accept OEM & ODM?
Q: Of course, as a manufacturer, OEM & ODM is available, our professional R&D center can help you on the project.

A: How long is your delivery time?
Q: Usually it's about 20 days,depends on your actual quantity.
Any question, pls feel free to contact . Thanks!

REQUEST A QUOTE

Enter your contact information, we will get in touch with you as soon as possible!( * is required information)

Copyright © ​2023 Rock drill tools Co., Ltd