Tapered Drill Rods
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Tapered Drill Rods

Tapered Angle: 7°11°12°
Material: 23CrNi3Mo alloy steel / customization
Diameter: Hex22mm, Hex25mm
Core hardness: HRC 39-45
Surface hardness: HRC 50-55
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General Introduction

Gdrills supplies tapered drill rods for applicable top hammer rock drilling operations, including mining, quarrying, and other rock drilling applications.

Our product range includes different taper angles, hexagonal rod sizes, and lengths to meet varying drilling requirements. Selecting the right configuration requires matching the rod specifications with the compatible tapered bit and rock drill setup.

Product Options

Taper Angles: 7°, 11°, and 12°

Hexagonal Rod Sizes: 22 mm and 25 mm

Material: 23CrNi3Mo alloy steel, as specified in the current product information

Length: Available in different configurations according to the product specification table

 

Features

Category

Top hammer

Item

Drill rods

Tapered angle

7°, 11°, 12°

Material

23CrNi3Mo alloy steel / customization

Surface hardness

HRC50-55

Core Hardness

HRC39-45

Length

610mm-3660mm / customization

Diameter

Hex22mm, Hex25mm

OEM

Color, Design, Packing, Material and etc

Advantage

strict-selected raw material, quality control, good quality

Application

Civil engineering, Blasting hole drilling, small scale mining

Payment

T/T; L/C; D/P;

Supported Incoterm

FOB; EXW, CIF, DAP

Shipping

By air, by sea, by train

After-sale service

Yes

Quality control

Yes

Samples

Yes

Warranty

Yes

 

 

 

 

Specifications

11° Tapered Drill Rod Hex 22mm (7/8inch), Shank 22 X 108mm

Article No. Length Dia Degree Weight
mm ft' inch" mm inch ° kg
TD-0610-H2211C 610 2' 22 7/8 11 2.18
TD-0800-H2211C 800 2' 7" 22 7/8 11 2.75
TD-1220-H2211C 1220 4' 22 7/8 11 4.02
TD-1830-H2211C 1830 6' 22 7/8 11 5.87
TD-2000-H2211C 2000 6' 6" 22 7/8 11 6.39
TD-2435-H2211C 2435 7' 11" 22 7/8 11 7.72
TD-3050-H2211C 3050 10' 22 7/8 11 9.57
TD-3660-H2211C 3660 12' 22 7/8 11 11.41

 

12° Tapered Drill Rod Hex 22mm (7/8inch), Shank 22 X 108mm

Article No. Length Dia Degree Weight
mm ft' inch" mm inch ° kg
TD-0610-H2212C 610 2' 22 7/8 12 2.19
TD-1220-H2212C 1220 4' 22 7/8 12 4.05
TD-1830-H2212C 1830 6' 22 7/8 12 5.91
TD-2000-H2212C 2000 6' 6" 22 7/8 12 6.43
TD-2435-H2212C 2440 8' 22 7/8 12 7.77
TD-3050-H2212C 3050 10' 22 7/8 12 9.63
TD-3200-H2212C 3200 10' 5" 22 7/8 12 10.09
TD-3660-H2212C 3660 12' 22 7/8 12 11.49

 

7° Tapered Drill Rod Hex 25mm (1inch), Shank 25 X 108mm

Article No. Length Dia Degree Weight
mm ft' inch" mm inch ° kg
TD-0610-H2507C 610 2' 25 1 7 2.80
TD-1000-H2507C 1000 3' 3" 25 1 7 4.40
TD-1220-H2507C 1220 4' 25 1 7 5.30
TD-1400-H2507C 1400 4' 7" 25 1 7 5.60
TD-1600-H2507C 1600 5' 2" 25 1 7 6.80
TD-1830-H2507C 1830 6' 25 1 7 8.00
TD-2200-H2507C 2200 7'2" 25 1 7 9.30
TD-2435-H2507C 2435 7' 11" 25 1 7 9.00
TD-2600-H2507C 2600 8' 6" 25 1 7 10.7
TD-3200-H2507C 3200 10' 5" 25 1 7 13.1

 

Company Show

product-4096-3072product-1153-611

 

Warranty Conditions

In order to make customers familiar with Gdrills' warranty and claim settlement towards tapered drill steel, Guizhou Gold Drills Equipment herein indicates the warranty terms in details as below.

1. Full compensation shall be made as following condition: Rod breakage when lifespan of the rod used is less than 1/3 of its normal in comparison to the average lifetime of batch rods or samples which Gdrills delivered to the same client under the same working condition (same rock, same drilling machine and same driller).

2. Partial compensation shall be made in accordance with wear rate of rod thread when the rod is used in weathered rock, limestone or other soft rocks and broken.

3. Generally, compensation shall not be made for breakage of rod, of which the thread is worn seriously.

4. Should the same problem occur for initial rods out of any bulk order when customer starts using the rods (i.e. first two pieces of rods prematurely damaged in the same way), please contact us or your suppliers immediately and stop using the remaining products, we will provide timely service and settlement (such as replacing the rods). Otherwise, Gdrills will not bear the responsibility.

 

Procedures of Claim Settlement

Procedure: should the above-mentioned situations (Warranty Conditions) take place, please send the damaged rods in time to Gdrills' technical department. The reply shall be given in one week in compliance with service commitment and handling standard. Distributor or Agent must offer written quality problem report issued by end-user for return shipment of goods. In case other disputes happen, please send the remains of drill rods to our company, and the both parties shall solve the issue by friendly negotiation.

Limitation on Liability. Except as provided for herein, in no event will Gdrills be liable for any indirect ,incidental, special, consequential, punitive or similar damages including, but not limited to, lost profits, loss of data or business interruption losses. In no event will the total, aggregate liability of Gdrills under the Contract exceed the value of the Contract under which liability is claimed. The liability limitations shall apply even if Gdrills has been notified of the possibility or likelihood of such damages occurring and regardless of the form of action, whether in contract, negligence, strict liability, tort, products liability or otherwise. The parties agree that these limits of liability shall survive and continue in full force and effect despite any termination or expiration of any Contract. Any action by Purchaser against Gdrills must be commenced within one year after the cause of action has accrued. No employee or agent of Gdrills is authorized to make any warranty other than that which is specifically set forth herein. The provisions in any specification, brochure or chart issued by Gdrills are descriptive and are not warranties.

Certificates

 

 

product-2044-3000product-2046-3000

 

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