High-Quality Hex22 Rock Drilling Tools R22 Thread Extension Rod for Drifting and Tunnelling Manufacturer, Manufacturers

1 / 5

High-Quality Hex22 Rock Drilling Tools R22 Thread Extension Rod for Drifting and Tunnelling Manufacturer, Manufacturers

Product Details

Customization:	Available
After-sales Service:	Repair or Replacement
Warranty:	6 Months

Send Inquiry

Product Description

Basic Specifications

Model NO.

HEX22-R22

Certification

ISO 9001:2000, ISO 9001:2008

Material

Carbon Steel

Material Quality

23crni3mo D6a

Manufacturing

Forging

Surface Treatment

Spray-Paint

Thread

R22

Machine Type

Drilling Tools

Standard

Production Capacity

500,000 PCS/Month

📦

Packaging & Logistics

Package Size

30.00cm * 30.00cm * 30.00cm

Gross Weight

5.000kg

Transport Package

Wooden Case

Origin

China

⚙️

Detailed Product Description

Extension rods are manufactured from high-quality hollow drill steels. Available in two primary shapes: round and hexagonal. These rods feature a hollow flushing hole, essential for transmitting water or air during the drilling process to clear debris. The precision threads allow for seamless connection with couplings, shanks, or drill bits.

Technical Highlights:

Thread Types: R22, R25, R28, R32, R38, T38, T45, T51, ST58, T60.
Rod Configurations: Male-Male Rod, MF (Male-Female) Rod.
Hex Sizes: 22mm, 25mm, 28mm, 32mm, 35mm.
Diameter Sizes: 39mm, 46mm, 52mm.
Custom Lengths: Available from 0.4m up to 6m.

📊

Extension Rod Technical Data

R22 - HEX 22 (7/8") ROPE THREAD - 22mm x 22mm
Rod Cross Section	Length (L)		Thread
Rod Cross Section	mm	FT	Left	Right
HEX 22	610	2'	R22	R22
HEX 22	915	3'	R22	R22
HEX 22	1220	4'	R22	R22
HEX 22	1525	5'	R22	R22
HEX 22	1830	6'	R22	R22

R25 - HEX 25 (1") ROPE THREAD - 25mm x 25mm
Rod Cross Section	Length (L)		Thread
Rod Cross Section	mm	FT	Left	Right
HEX 25	610	2'	R25	R25
HEX 25	1000	3' 3"	R25	R25
HEX 25	1525	5'	R25	R25
HEX 25	3050	10'	R25	R25
HEX 25	4305	14' 1-1/2"	R25	R25

R28 - HEX 28 (1-1/8") ROPE THREAD - 28mm x 28mm
Rod Cross Section	Length (L)		Thread
Rod Cross Section	mm	FT	Left	Right
HEX 28	610	2'	R28	R28
HEX 28	1220	4'	R28	R28
HEX 28	1830	6'	R28	R28
HEX 28	2435	8'	R28	R28
HEX 28	3660	12'	R28	R28

Frequently Asked Questions

Q1: What materials are used to manufacture your extension rods?

Our extension rods are made from high-grade carbon steel and 23crni3mo D6a, ensuring exceptional durability and strength for heavy-duty drilling tasks.

Q2: Which thread types are available for these rods?

We offer a wide range of industry-standard threads including R22, R25, R28, R32, R38, T38, T45, T51, ST58, and T60 to fit various drilling equipment.

Q3: Do you provide both Round and Hexagonal shapes?

Yes, we provide both round and hexagonal cross-section rods. Hexagonal rods are particularly favored for increased stiffness and easier handling.

Q4: What is the purpose of the hollow hole in the center of the rod?

The hollow center, often called a flushing hole, is used to transmit water or air to the drill bit to cool the equipment and flush out rock cuttings during operation.

Q5: How are the products packaged for international shipping?

To ensure safety during transit, extension rods are securely packaged in sturdy wooden cases or bundled together, depending on the rod length and quantity.

Q6: What is your monthly production capacity for these drilling tools?

Our facility has a robust production capacity of approximately 500,000 pieces per month, allowing us to handle both small and large-scale industrial orders efficiently.