China 7degrees Taper Angle 800mm Mining Drills Rock Tools High Quality Tapered Drill Rod Factories, Quotes

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China 7degrees Taper Angle 800mm Mining Drills Rock Tools High Quality Tapered Drill Rod Factories, Quotes

Product Details

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

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Product Description

Basic Information

Model NO.

7degrees

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

Specification

Hex22mm, Hex25mm

HS Code

82071990

Packaging & Delivery

Package Size

30.00cm * 30.00cm * 30.00cm

Gross Weight

5.000kg

Transport Package

Wooden Case

Capacity

500,000 PCS / Month

Product Description

Taper drill rod is essentially used for rock drilling, blasting holes, and other drilling works in quarries, coal mines, traffic projects, and other constructions. It works effectively with taper drill bits and is available in different lengths for various applications.

Key Technical Features:

Steel Grade: 95CrMo (equivalent to SANDBAR20, C253, Z708, Sanbar23) or 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°, etc.
Length Range: 0.4m to 10m.
Shank Configuration: Shank hex 22 mm (7/8") x 108 mm (4 1/4"). Rod hex 22 mm (7/8"). Flushing hole diameter 6.7 mm.

Technical Specifications

ROD CROSS SECTION	Length (mm / ft-in)		Weight Approx. (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	400	1'3¾"	1.6
22H	1830	6'	6.0
22H	3050	10'	9.7
22H	8000	26'3"	24.9
11° Taper Angle
22H	1220	4'	4.1
22H	2435	8'	7.8
22H	5600	18'4½"	17.6
12° Taper Angle
22H	610	2'	2.2
22H	3200	10'6"	10.2
22H	8000	26'3"	24.9

Frequently Asked Questions

What are the primary applications for taper drill rods?

Taper drill rods are primarily used in rock drilling, creating blasting holes, and other mining or construction tasks in coal mines, quarries, and traffic infrastructure projects.

Which steel grades are used for these rods?

We utilize high-quality steel grades including 95CrMo (equivalent to SANDBAR20, C253, Z708, or Sanbar23) and 55SiMnMo to ensure durability and strength.

How do I choose the correct taper angle for my project?

Generally, light-duty rock drills use a 7° or smaller taper angle, while heavy-duty rock drills require an 11° or 12° taper angle. It is crucial that the rod and bit have matching degrees.

What shank sizes and configurations are available?

Common shank sizes include Hex 22mm and 25mm with various lengths such as 108mm and 159mm. We offer a full range of configurations for hand-held pneumatic drilling.

What is the production capacity and packaging?

Our production capacity is approximately 50,000 MT per month. Products are securely packaged in wooden cases or bundles for safe international transport.