China High Quality Hex22/25-7 Degree 600-8000mm Taper Drill Steel Rod for Mining Quarrying Factory, Factories

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China High Quality Hex22/25-7 Degree 600-8000mm Taper Drill Steel Rod for Mining Quarrying Factory, Factories

Product Details

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

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Product Description

■ Basic Information

Model NO.

Taper Rod

Certification

ISO 9001:2000, ISO 9001:2008

Standard

Surface Treatment

Spray-Paint

Process

Forging

Material

Carbon Steel

Degree

7°/11°/12°

Machine Type

Drilling Tools

Color

Red, Black, Yellow, White

Material Quality

95CrMo, 55SiMnMo, 40SiMnCrNiMo, 23CrNi3Mo, D6A

HS Code

82071990

Capacity

500,000 PCS/Month

■ Packaging & Delivery

Package Size

30.00cm * 30.00cm * 30.00cm

Gross Weight

5.000kg

Package Type

Wooden Case or Bundles

■ Product Description

Taper drill rod is specifically designed for rock drilling, blasting holes, and various drilling operations in quarries, coal mines, traffic projects, and construction sites. It operates in conjunction with taper drill bits and is available in different lengths to suit diverse applications.

Our taper drill rods feature various taper angles. Generally, light-duty rock drills utilize a 7° taper or smaller, while heavy-duty rock drills primarily use 11° or 12° taper angles. It is essential that the taper drill rods and taper drill bits match in degree for optimal performance. We offer tapered rods in a full range of shank configurations and steel hex diameters for hand-held pneumatic drilling requirements.

Steel Grade: 95CrMo (equivalent to SANDBAR20, C253, Z708, Sanbar23), 55SiMnMo

Shank Sizes: Hex 22mm × 108mm, 159mm, 80mm; Hex 25mm × 108mm, 159mm

Taper Degrees: 4°46', 6°, 7°, 11°, 12°, etc.

Length Range: 0.4m - 10m

■ Technical Specifications

ROD CROSS SECTION	Length (mm / foot-inch)		Weight approx. (kg)
4°46' Taper Angle
22H	800	2'7½"	2.8
22H	1600	5'3"	5.3
22H	2000	6'6¾"	6.5
22H	3200	10'6"	10.2
22H	4000	13'1½"	12.7
7° Taper Angle
22H	800	2'7½"	2.8
22H	1830	6'	6.0
22H	3050	10'	9.7
22H	4800	15'9"	15.1
22H	8000	26'3"	24.9
11° Taper Angle
22H	800	2'7½"	2.8
22H	1525	5'	5.0
22H	2435	8'	7.8
22H	4000	13'1½"	12.6
22H	8000	26'3"	24.9
12° Taper Angle
22H	610	2'	2.2
22H	2000	6'6¾"	6.5
22H	3655	11'11⅝"	11.6
22H	5600	18'4½"	17.5
22H	8000	26'3"	24.9

■ Frequently Asked Questions (FAQ)

1. What are the primary applications for taper drill rods?

Taper drill rods are primarily used for rock drilling, blasting hole creation in quarries, coal mining, and infrastructure construction such as road and rail development.

2. How do I choose the correct taper angle?

Selection depends on the machine type: light-duty rock drills typically use a 7° taper or smaller, while heavy-duty machines generally require 11° or 12° angles. Always ensure the rod and bit have matching degrees.

3. What steel grades are used in your drill rods?

We utilize high-quality steel grades including 95CrMo (equivalent to SANDBAR20/C253) and 55SiMnMo to ensure durability and wear resistance in harsh environments.

4. What are the standard shank configurations available?

Common shank sizes include Hex 22mm and Hex 25mm with various lengths such as 80mm, 108mm, and 159mm to fit standard pneumatic drilling equipment.

5. Can the length of the rod be customized?

Yes, our taper drill rods can be manufactured in a wide range of lengths, typically from 0.4 meters up to 10 meters, depending on your specific project needs.

6. How are the products protected during shipping?

To prevent damage and corrosion, drill rods are packed securely in wooden cases or tightly bound in bundles, ensuring they arrive in optimal condition.