High-Quality Blast Hole Drilling Hex25mm 7/11/12 Tapered Drill Rod for Mining and Tunnelling Manufacturer, Pricelist

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High-Quality Blast Hole Drilling Hex25mm 7/11/12 Tapered Drill Rod for Mining and Tunnelling Manufacturer, Pricelist

Product Details

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

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Product Description

Basic Info.

Model NO.

hex25

Certification

ISO 9001:2000, ISO 9001:2008

Standard

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

Carbon Steel / 95crmo / 55simnmo

Degree

7 / 11 / 12

Machine Type

Drilling Tools

Color

Red, Black, Yellow, White

Package

Wooden Case

Specification

Hex22mm Hex25mm

Capacity

500,000 PCS/Month

Packaging & Delivery

Package Size

30.00cm * 30.00cm * 30.00cm

Gross Weight

5.000kg

Product Description

Taper drill rod is widely utilized for rock drilling, blasting holes, and various drilling works in quarries, coal mines, traffic projects, and other construction settings. Designed to work seamlessly with taper drill bits, these rods come in various lengths to suit different applications.

Key Specifications:

Steel Grade: 95CrMo (equivalent to SANDBAR 20, C253, Z708, sanbar 23) and 55SiMnMo.
Shank Sizes: hex.22mm×108mm, hex.22mm×159mm, hex.22mm×80mm, hex.25mm×108mm, hex.25mm×159mm.
Taper Angles: 4°46', 6°, 7°, 11°, 12° degree etc.
Available Lengths: 0.4m to 10m.
Monthly Productivity: 50,000 MT.

Typically, light-duty rock drills employ a 7° taper or smaller, while heavy-duty rock drills primarily use 11° and 12° taper angles. It is essential for the taper drill rods and bits to share the same tapered degree for optimal performance.

ROD CROSS SECTION	Length		Weight approx.
SECTION	mm	foot/inch	kg
4º46´ taper angle
22H	800	2'7½"	2.8
22H	1600	5'3"	5.3
22H	2000	6'6¾"	6.5
22H	2400	7'10½"	7.7
22H	3200	10'6"	10.2
7º taper angle
22H	400	1'3¾"	1.6
22H	800	2'7½"	2.8
22H	1600	5'3"	5.2
22H	2435	8'	7.8
22H	3050	10'	9.7
11º taper angle
22H	800	2'7½"	2.8
22H	1525	5'	5
22H	2435	8'	7.8
22H	4000	13'1½"	12.6
12º taper angle
22H	610	2'	2.2
22H	1220	4'	4.1
22H	2000	6'6¾"	6.5
22H	3050	10'	9.7
22H	8000	26'3"	24.9

Frequently Asked Questions

What is the primary use of a Taper Drill Rod?

Taper drill rods are used for rock drilling, creating blasting holes, and other drilling operations in quarries, coal mines, and infrastructure construction.

What materials are these rods made from?

They are manufactured using high-quality steel grades such as 95CrMo (equivalent to SANDBAR 20) and 55SiMnMo, ensuring durability and high performance.

How do I choose the right taper angle?

Light-duty rock drills generally use a 7° or smaller taper angle, while heavy-duty equipment typically requires 11° or 12° angles. The rod and bit must have matching degrees.

What are the available shank sizes?

Common hex sizes include 22mm and 25mm, with various lengths such as 108mm, 159mm, and 80mm to fit different pneumatic drilling needs.

What is the production capacity and packaging?

The monthly production capacity is approximately 50,000 MT (or 500,000 PCS). Products are securely packed in wooden cases or bundles for safe transport.

What lengths can be provided?

We offer a wide range of lengths starting from 0.4 meters up to 10 meters to accommodate various drilling depths.