China 7 Degree Shank 108 159 Hex 22 25 Tapered Drill Rod Best Price for Drilling Equipment Manufacturers, Factories

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China 7 Degree Shank 108 159 Hex 22 25 Tapered Drill Rod Best Price for Drilling Equipment Manufacturers, Factories

Product Details

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

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Product Description

Basic Specifications

Certification

ISO 9001:2000, ISO 9001:2008

Standard

Surface Treatment

Spray-Paint

Process

Forging

Material

Carbon Steel

Taper Degree

7° / 11° / 12°

Machine Type

Drilling Tools

Color

Red, Black, Yellow, White

Material Quality

95CrMo, 55SiMnMo, 40SiMnCrNiMo

Package

Wooden Case

Specification

Hex 22mm / Hex 25mm

Capacity

500,000 PCS/Month

Product Description

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

Steel Grades: 95CrMo (equivalent to SANDBAR 20/C253), Z708, Sanbar 23, 55SiMnMo.
Shank Sizes: Hex 22mm × 108mm, 22mm × 159mm, 22mm × 80mm, 25mm × 108mm, 25mm × 159mm.
Taper Angles: 4°46', 6°, 7°, 11°, 12° etc.
Available Lengths: 0.4m to 10m.

Technical Data (Hex 22mm x 108mm)

Flushing hole diameter: 6.7 mm

Rod Section	Length (mm)	Length (foot/inch)	Weight (kg)
4°46' Taper Angle
22H	800	2'7½"	2.8
22H	1600	5'3"	5.3
22H	2400	7'10½"	7.7
22H	4000	13'1½"	12.7
7° Taper Angle
22H	1830	6'	6.0
22H	3050	10'	9.7
22H	8000	26'3"	24.9
11° Taper Angle
22H	1525	5'	5.0
22H	3200	10'6"	10.2
12° Taper Angle
22H	2000	6'6¾"	6.5
22H	3655	11'11⅝"	11.6

Frequently Asked Questions

1. What is the primary use of a taper drill rod?

Taper drill rods are primarily used for rock drilling, creating blasting holes, and other pneumatic drilling tasks in mining, quarrying, and construction.

2. How do I choose the right taper angle?

Generally, light-duty rock drills use a 7° or smaller taper angle, while heavy-duty rock drills typically require 11° or 12° taper angles. The rod and bit must have the same degree.

3. What materials are used to manufacture these rods?

We use high-quality carbon steel and alloys such as 95CrMo, 55SiMnMo, and 40SiMnCrNiMo to ensure durability and forging strength.

4. Can the length of the drill rod be customized?

Yes, we provide tapered rods in a wide range of lengths starting from 0.4m up to 10m to meet various drilling depth requirements.

5. What shank configurations are available?

The most common shank sizes are Hex 22mm (7/8") and Hex 25mm (1"), with standard lengths like 108mm and 159mm.

6. How are the products packaged for international shipping?

To ensure safety during transport, the drill rods are securely packed in reinforced wooden cases or tight bundles.