Model NO.
Tapered drill rod
Certification
ISO 9001:2000, ISO 9001:2008
Surface Treatment
Spray-Paint
Material
Carbon Steel / 95CrMo / 55SiMnMo
Machine Type
Drilling Tools
Color
Red, Black, Yellow, White
Production Cap.
500,000 PCS/Month
Taper drill rod is essentially used for rock drilling, blasting holes, and other drilling works in quarries, coal mines, traffic, and various construction projects. It is designed to work seamlessly with taper drill bits across different applications.
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Versatile Application: Ideal for hand-held pneumatic drilling needs in heavy-duty and light-duty environments.
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Taper Matching: Available in various angles (7°, 11°, 12°). Ensure the rod and bit share the same degree for optimal performance.
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Premium Steel Grades: Manufactured with 95CrMo (equivalent to SANDBAR20/C253) or 55SiMnMo for maximum durability.
Standard Shank Configurations:
- • Hex. 22mm × 108mm
- • Hex. 22mm × 159mm
- • Hex. 22mm × 80mm
- • Hex. 25mm × 108mm
- • Hex. 25mm × 159mm
❓ Frequently Asked Questions
Q1: What materials are used for the tapered drill rods?
We use high-quality Carbon Steel and specialized alloys like 95CrMo (equivalent to SANDBAR20 or C253) and 55SiMnMo to ensure high fatigue strength and wear resistance.
Q2: How do I choose the correct taper angle for my project?
Generally, light-duty rock drills use a 7° or smaller taper angle. Heavy-duty rock drills primarily utilize 11° or 12° taper angles. The rod and bit must always match in degree.
Q3: What are the standard shank sizes available?
The most common shank sizes are Hex 22mm x 108mm and Hex 25mm x 159mm. We also offer configurations for 80mm shanks and various other lengths.
Q4: What is the range of lengths you can provide?
We can manufacture tapered drill rods in lengths ranging from 0.4 meters up to 10 meters to suit different drilling depths and equipment requirements.
Q5: What are the typical applications for these rods?
These rods are widely used in granite and marble quarries, coal mining, tunneling, and construction for blasting hole drilling.
Q6: How are the products packaged for international shipping?
To ensure safety during transport, we package the drill rods in sturdy wooden cases or secure bundles, depending on the length and quantity of the order.