High-Quality 2023 New Technical Forging Type H22*108 Pneumatic Tools Tapered Drill Rod for Hard Rock Drinlling Manufacturer, Factories

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

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Basic Specifications

Model NO.

Tapered drill rod

Certification

ISO 9001:2000, ISO 9001:2008

Standard

GB

Surface Treatment

Spray-Paint

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

Length

3 Pies

Specification

Hex 22mm / Hex 25mm

Origin

China

HS Code

82071990

Capacity

500,000 PCS/Month

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Packaging & Delivery

Package Size

30.00cm * 30.00cm * 30.00cm

Gross Weight

5.000kg

Transport Package

Wooden Case

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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 usually use 7° taper or smaller, while heavy-duty rock drills mainly use 11° and 12° taper angles. The fundamental theory is that taper drill rods and taper drill bits must share the same tapered degree. We provide tapered rods in a full range of shank configurations and steel hex diameters for hand-held pneumatic drilling needs.

Steel grade: 95CrMo equivalent to SANDBAR20 or C253, Z708, sanbar23, 55SiMnMo
Shank size: Hex 22mm × 108mm, Hex 22mm × 159mm, Hex 22mm × 80mm, Hex 25mm × 108mm, Hex 25mm × 159mm
Taper: 4°46', 6°, 7°, 11°, 12° etc.
Length: 0.4m - 10m
Productivity: 50,000 MT / month

Note: Shank hex. 22 mm (7/8") x 108 mm (4 1/4"). Rod hex. 22 mm (7/8). Flushing hole diameter 6.7 mm.

ROD CROSS SECTION	Length		Weight approx. (kg)
ROD CROSS SECTION	mm	foot/inch	Weight approx. (kg)
4°46' taper angle
22H	800	2'7½"	2.8
22H	1600	5'3"	5.3
22H	2000	6'6¾"	6.5
22H	3200	10'6"	10.2
22H	4000	13'1½"	12.7
7° taper angle
22H	400	1'3¾"	1.6
22H	800	2'7½"	2.8
22H	1600	5'3"	5.2
22H	2000	6'6¾"	6.5
22H	3050	10'	9.7
22H	4000	13'1½"	12.6
22H	8000	26'3"	24.9
11° taper angle
22H	800	2'7½"	2.8
22H	1525	5'	5.0
22H	2435	8'	7.8
22H	4000	13'1½"	12.6
22H	8000	26'3"	24.9
12° taper angle
22H	610	2'	2.2
22H	1220	4'	4.1
22H	2435	8'	7.8
22H	3655	11'11⅝"	11.6
22H	8000	26'3"	24.9

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Frequently Asked Questions

1. What are tapered drill rods primarily used for?

Tapered drill rods are essential for rock drilling, creating blasting holes, and other excavation tasks in quarries, coal mines, and various construction projects.

2. Which taper angles are available for these rods?

We offer a full range of taper angles, including 4°46', 6°, 7°, 11°, and 12°. Light-duty drills typically use 7° or smaller, while heavy-duty machines require 11° or 12°.

3. What materials are used in the manufacturing process?

The rods are manufactured from high-quality carbon steel, including grades like 95CrMo (equivalent to SANDBAR20), 55SiMnMo, and 23CrNi3Mo, using a forging process.

4. Can the rods be customized by length and shank size?

Yes, our tapered drill rods come in lengths ranging from 0.4m to 10m and support various shank sizes such as Hex 22mm and Hex 25mm in different lengths.

5. How are the products protected during shipping?

Products are standardly packaged in wooden cases or bundles with surface spray-paint treatment to ensure they arrive in optimal condition.

6. Does the taper angle of the rod need to match the drill bit?

Absolutely. The basic technical requirement is that the taper drill rod and the taper drill bit must share the exact same tapered degree for safe and efficient operation.