China Blast Hole Drilling Hex22 25mm 7/11/12 Tapered Drill Rod for Mining and Tunnelling Factory, Factories

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

Product Description

Basic Product Information
Model NO.
HEX drill rod
Certification
ISO 9001:2000, ISO 9001:2008
Standard
GB
Surface Treatment
Spray-Paint
Manufacturing 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
HS Code
82071990
Production Capacity
500,000 PCS/Month
Packaging & Delivery
Package Size
30.00cm * 30.00cm * 30.00cm
Package Gross Weight
5.000kg
Transport Package
Wooden Case or Bundles
Product Description
Taper drill rod is used for rock drilling, blasting holes and other drilling works in quarries, coal mines, traffic, and other constructions. It works with taper drill bits and is available in different lengths for various applications. Our taper drill rods come in a variety of taper angles. Generally, light-duty rock drills use a 7° taper or smaller, while heavy-duty rock drills mainly use 11° or 12° taper angles. Taper drill rods and taper drill bits must match in the same tapered degree.
  • Steel Grade: 95CrMo equivalent to SANDBAR 20 or C253, Z708, Sanbar 23, 55SiMnMo.
  • Shank Sizes: Hex. 22mm x 108mm, 22mm x 159mm, 22mm x 80mm, 25mm x 108mm, 25mm x 159mm.
  • Taper Angles: 4°46', 6°, 7°, 11°, 12° degree etc.
  • Available Lengths: 0.4m to 10m.
  • Productivity: 50,000 MT per month.
  • Technical Note: Shank hex. 22 mm (7/8") x 108 mm (4 1/4"). Flushing hole diameter 6.7 mm.
Technical Parameters
ROD CROSS SECTION Length (mm / foot-inch) Weight approx (kg)
4º46' Taper Angle
22H8002'7 1/2"2.8
22H16005'3"5.3
22H20006'6 3/4"6.5
22H320010'6"10.2
7º Taper Angle
22H4001'3 3/4"1.6
22H8002'7 1/2"2.8
22H16005'3"5.2
22H305010'9.7
22H480015'9"15.1
22H800026'3"24.9
11º Taper Angle
22H8002'7 1/2"2.8
22H18306'6.0
22H400013'1 1/2"12.6
22H800026'3"24.9
12º Taper Angle
22H6102'2.2
22H24358'7.8
22H365511'11 5/8"11.6
22H800026'3"24.9
Frequently Asked Questions
1 What are the primary applications of taper drill rods?
Taper drill rods are essential tools for rock drilling, creating blasting holes, and supporting various excavation works in quarries, coal mines, and infrastructure construction projects.
2 How do I choose the correct taper angle for my project?
Selection depends on the machine duty. Light-duty rock drills typically utilize a 7° taper, while heavy-duty drilling operations generally require 11° or 12° taper angles for better performance.
3 Which steel grades are used in manufacturing these rods?
We use high-quality steel grades including 95CrMo (equivalent to SANDBAR 20/C253), Z708, Sanbar 23, and 55SiMnMo to ensure durability and wear resistance.
4 Can you provide different shank configurations?
Yes, we provide a full range of shank configurations including Hex 22mm x 108mm, 22mm x 159mm, and Hex 25mm in various standard lengths.
5 What is the standard packaging for transport?
To ensure safety during transit, products are securely packed in wooden cases or tightly bound in bundles, depending on the length and quantity.
6 What is the production capacity for bulk orders?
We have a robust manufacturing capability of approximately 50,000 metric tons per month, allowing us to support large-scale industrial requirements efficiently.

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