China High Quality Carburized Tapered Drill Rods 11 Degree Taper Rod for S250 Rock Drill Manufacturer, Quotes

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China High Quality Carburized Tapered Drill Rods 11 Degree Taper Rod for S250 Rock Drill Manufacturer, Quotes

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

Spray-Paint

Manufacturing

Forging

Material

Carbon Steel / Alloy Steel

Taper Degree

7° / 11° / 12°

Machine Type

Drilling Tools

Capacity

500,000 PCS/Month

Origin

China

⚙️ Product Description

Taper drill rod is specifically engineered for rock drilling, blasting holes, and other essential drilling works in quarries, coal mines, traffic infrastructure, and construction projects. It is designed to work seamlessly with taper drill bits, offering various lengths to suit diverse applications.

Light Duty Application: Generally utilizes a 7° taper or smaller angle.
Heavy Duty Application: Primarily uses 11° or 12° taper angles.
Theory: For optimal performance, the taper drill rods and taper drill bits must share the identical tapered degree.

We provide a comprehensive range of tapered rods in various shank configurations and steel hex diameters to meet hand-held pneumatic drilling requirements.

Steel Grade: 95CrMo (Equivalent to SANDBAR 20/C253, Z708, Sanbar 23) or 55SiMnMo.
Shank Sizes: Hex 22mm × 108mm, 22mm × 159mm, 22mm × 80mm, 25mm × 108mm, 25mm × 159mm.
Available Tapers: 4°46′, 6°, 7°, 11°, 12° etc.
Length Range: 0.4m to 10m.
Packaging: Securely packed in wooden cases or bundles.

📊 Technical Specifications

Rod Cross Section	Length (mm)	Length (ft/in)	Approx. Weight (kg)
4°46′ Taper Angle (Hex 22mm)
22H	800	2'7½"	2.8
22H	1600	5'3"	5.3
22H	3200	10'6"	10.2
22H	4000	13'1½"	12.7
7° Taper Angle (Hex 22mm)
22H	800	2'7½"	2.8
22H	1830	6'	6.0
22H	3050	10'	9.7
22H	8000	26'3"	24.9
11° Taper Angle (Hex 22mm)
22H	1220	4'	4.1
22H	2435	8'	7.8
22H	4800	15'9"	15.1
12° Taper Angle (Hex 22mm)
22H	610	2'	2.2
22H	2000	6'6¾"	6.5
22H	3655	11'11⅝"	11.6

❓ Frequently Asked Questions

What are taper drill rods mainly used for?

They are primarily used in rock drilling, creating blasting holes in quarries, coal mines, and for various infrastructure and construction drilling needs.

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 typically require 11° or 12° angles. Crucially, the rod and bit must have matching angles.

What steel grades are used in manufacturing these rods?

We use high-quality steel grades including 95CrMo (equivalent to SANDBAR 20 or C253) and 55SiMnMo to ensure durability and high performance.

What is the standard length range available?

Our taper drill rods are available in lengths ranging from 0.4 meters up to 10 meters to accommodate different drilling depths.

Can these rods be used with hand-held pneumatic drills?

Yes, we offer a full range of shank configurations, including hex 22mm and hex 25mm diameters, specifically designed for hand-held pneumatic drilling.