High-Quality 2/3/4/5/6pies 7/11/12degrees Taper Drill Rod for Mining Factory, Quotes

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

Product Description

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Basic Specifications

Model NO.:tapered drill rod
Certification:ISO 9001:2000, ISO 9001:2008
Standard:GB
Surface:Spray-Paint
Process:Forging
Material:Carbon Steel
Degree:7 / 11 / 12
Color:Red, Black, Yellow, White
Quality:95crmo, 55simnmo, 40simncrnimo, 23crni3mo, D6a
Specification:Hex 22mm, Hex 25mm
Origin:China
Capacity:500,000 PCS/Month
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Packaging & Delivery

Package Size:30.00cm * 30.00cm * 30.00cm
Gross Weight:5.000kg
Transport:Wooden Case or Bundles
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Product Description

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

Technical Highlights:
  • Generally, light-duty rock drills use a 7° taper or smaller angle.
  • Heavy-duty rock drills mainly utilize 11° and 12° taper angles.
  • Crucial Rule: Taper drill rods and taper drill bits must share the same tapered degree for operational safety and efficiency.

Technical Parameters:

  • Steel Grade: 95CrMo (equivalent to SANDBAR20, C253, Z708, sanbar23), 55SiMnMo.
  • Shank Sizes: Hex 22mm × 108mm, 22mm × 159mm, 22mm × 80mm, 25mm × 108mm, 25mm × 159mm.
  • Taper Angles: 4°46', 6°, 7°, 11°, 12°, etc.
  • Length Range: 0.4m - 10m.
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Detailed Specifications

ROD CROSS SECTION Length Weight (Approx. kg)
Section Type mm foot/inch kg
4°46' Taper Angle
22H8002'7½"2.8
22H16005'3"5.3
22H20006'6¾"6.5
22H320010'6"10.2
7° Taper Angle
22H4001'3¾"1.6
22H8002'7½"2.8
22H16005'3"5.2
22H20006'6¾"6.5
22H305010'9.7
22H400013'1½"12.6
22H800026'3"24.9
11° Taper Angle
22H8002'7½"2.8
22H15255'5.0
22H24358'7.8
22H480015'9"15.1
22H800026'3"24.9
12° Taper Angle
22H6102'2.2
22H12204'4.1
22H24358'7.8
22H396513'12.5
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Frequently Asked Questions

What are tapered drill rods used for?
They are primarily used for rock drilling, blasting holes, and construction projects in quarries, coal mines, and infrastructure development.
Which taper angle should I choose for my rock drill?
Light-duty drills typically use a 7° or smaller taper, while heavy-duty drills generally require 11° or 12° angles.
Can I use a 7° rod with an 11° drill bit?
No. For safe and efficient operation, the taper drill rod and the taper drill bit must have the exact same tapered degree.
What materials are the drill rods made of?
Our rods are manufactured using high-quality carbon steel grades such as 95CrMo, 55SiMnMo, and other durable alloy steels.
What is the available length range for these rods?
We offer a wide range of lengths, typically from 0.4 meters up to 10 meters, to suit various drilling depth requirements.
How are the products protected during shipping?
To ensure safety during transport, drill rods are securely packed in heavy-duty wooden cases or tightly bound bundles.

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