China Wholesale Tools H22*108 Pneumatic Tools Tapered Mining Drill Rod with Rock Drill Bits

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China Wholesale Tools H22*108 Pneumatic Tools Tapered Mining Drill Rod with Rock Drill Bits

Product Details

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

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Product Description

📋 Basic Specifications

Model NO.

Tapered Drill Rod

Certification

ISO 9001:2000, ISO 9001:2008

Material

Carbon Steel / High Quality Alloy

Taper Degree

7° / 11° / 12°

Manufacturing

Forging & Heat Treatment

Standard

Surface Treatment

Spray-Paint

HS Code

82071990

🛠️ Product Description

Taper drill rod is widely used for rock drilling, blasting holes, and other drilling works in quarries, coal mines, traffic projects, and other construction sites. It is designed to work seamlessly with taper drill bits and is available in different lengths for various applications.

Common Taper Angles: Generally, light-duty rock drills use a 7° taper or smaller, while heavy-duty rock drills mainly utilize 11° or 12° taper angles. The core principle is that the taper drill rod and the bit must share the same degree for optimal performance.

Technical Highlights:

Steel Grade: 95CrMo (Equivalent to SANDBAR20, C253, Z708, Sanbar23) or 55SiMnMo.
Shank Size: Hex. 22mm × 108mm, 22mm × 159mm, 22mm × 80mm, 25mm × 108mm, 25mm × 159mm.
Length Range: Available from 0.4m to 10m.
Taper Degrees: 4°46', 6°, 7°, 11°, 12°, etc.
Productivity: 50,000 MT / Month capacity.

📊 Technical Data (Hex 22mm)

Rod Cross Section	Length (mm)	Length (Foot/Inch)	Weight Approx. (kg)
7° 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	3200	10'6"	10.1
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
12° Taper Angle
22H	610	2'	2.2
22H	1220	4'	4.1
22H	2000	6'6¾"	6.5
22H	3965	13'	12.5

📦 Packaging & Delivery

Package Method

Wooden Cases or Bundles

Package Size

30.00cm * 30.00cm * 30.00cm (Standard Unit)

Gross Weight

5.000kg (Standard Unit)

Transport

International Shipping Ready

❓ Frequently Asked Questions

What are tapered drill rods used for?

Tapered drill rods are essential for rock drilling, creating blasting holes, and supporting various excavation tasks in quarries, coal mines, and infrastructure construction.

How do I choose the correct taper angle?

It depends on the drill. Light-duty drills typically use a 7° taper, while heavy-duty pneumatic rock drills usually require an 11° or 12° taper angle. Ensure the rod and bit have the same degree.

What materials are the rods made from?

They are manufactured using high-quality steel grades like 95CrMo (comparable to SANDBAR20 or C253) and 55SiMnMo to ensure high durability and resistance to wear.

What shank sizes are standard?

The most common shank sizes include Hex 22mm and Hex 25mm, with various shank lengths such as 108mm and 159mm to fit different rock drill models.

What is the typical production capacity for orders?

Our manufacturing process supports a productivity of up to 50,000 MT per month, allowing for both large-scale industrial supply and smaller custom orders.

How are the drill rods packaged for international shipping?

For safe transport and protection against the elements, tapered drill rods are usually packed in sturdy wooden cases or secured in bundles.