High-Quality H22 Forging Type Carburized Blast Hole Tapered Rock Drill Rods Manufacturers, Factories

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

Product Description

Basic Specifications

Model NO.
Tapered drill rod
Certification
ISO 9001:2000, ISO 9001:2008
Material
Carbon Steel / 95CrMo / 55SiMnMo
Degree
7 / 11 / 12
Standard
GB
Manufacturing
Forging & Spray-Paint
Shank Sizes
Hex 22mm / Hex 25mm
HS Code
82071990

Packaging & Delivery

Package Size
30.00cm * 30.00cm * 30.00cm
Gross Weight
5.000kg
Capacity
500,000 PCS/Month
Origin
China

Product Description

Taper drill rod is used for rock drilling, blasting holes and other drilling works in the quarries, coal mines, traffic and other contractions. It works with taper drill bits and has different length 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° and 12° taper angles. The core principle is that taper drill rods and bits must match in tapered degree. We provide a full range of shank configurations and steel hex diameters for hand-held pneumatic drilling needs.

  • Steel Grade: 95CrMo (equivalent to SANDBAR20, C253, Z708), 55SiMnMo
  • Shank Size: Hex 22mm × 108mm/159mm/80mm, Hex 25mm × 108mm/159mm
  • Taper Degrees: 4°46', 6°, 7°, 11°, 12° etc.
  • Length Range: 0.4m - 10m
  • Package: Wooden case or bundles
ROD CROSS SECTION Length Weight approx. (kg)
SECTION mm foot/inch kg
4°46' taper angle
22H8002'7½"2.8
22H16005'3"5.3
22H320010'6"10.2
22H400013'1½"12.7
7° taper angle
22H8002'7½"2.8
22H18306'6
22H305010'9.7
22H560018'4½"17.5
11° taper angle
22H12204'4.1
22H24358'7.8
22H480015'9"15.1
22H800026'3"24.9
12° taper angle
22H6102'2.2
22H20006'6¾"6.5
22H365511'11⅝"11.6
22H800026'3"24.9

Frequently Asked Questions

What are tapered drill rods primarily used for?
They are used for rock drilling, blasting holes, and other excavation works in quarries, coal mines, and infrastructure construction.
Which taper angle should I choose for my rock drill?
Generally, light-duty rock drills use a 7° taper or smaller, while heavy-duty rock drills require 11° or 12° taper angles. The rod and bit must have the same degree.
What materials are these drill rods made of?
The rods are manufactured from high-quality carbon steel and alloy grades such as 95CrMo or 55SiMnMo for superior durability.
What are the available shank sizes?
Standard sizes include Hex 22mm (7/8") and Hex 25mm (1"), with various lengths like 108mm and 159mm.
How are the drill rods protected during transport?
Rods are typically packaged in sturdy wooden cases or secure bundles to prevent damage during shipping.
What is the range of lengths available?
We offer tapered rods in a wide range of lengths, typically from 0.4 meters up to 10 meters.

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