Tapered Drill Rods for Small Hole Drilling

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Tapered Drill Rods for Small Hole Drilling

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Product：	views：11Tapered Drill Rods for Small Hole Drilling
Branch：	Luheng
Type：	Drill Pipe
Unit Price：	Negotiated
Min.Order：
Supply：
Delivery：	Shipment within days since the date of payment
Valid until：	Long Term
Updated on：	2019-11-19 19:42

Product Details

Overview

Quick Details

Place of Origin:: Shandong, China

Brand Name:: Luheng

Model Number:: Customized

Type:: Drill Pipe

Machine Type:: Drilling Tool

Certification:: ISO

Material:: Carbon Steel

Processing Type:: Forging

Use:: Coal Mining

Model:: Hex.19mm

Taper Degree:: 6°, 7°, 11°, 12°

Drilling Rod Length:: 0.4m-4.0m

Shank Size:: 83mm,108mm

Types:: Tapered drill rods

Application:::: marble quarry, gold mine, railway, tunnel, etc

Material::: High quality carbide and high quality steel

MOQ::: No requirement for testing and trial order

color::: blue/red/black/yellow

package::: Wooden case/bundles

Supply Ability

Supply Ability:: 100000 Piece/Pieces per Year

Packaging & Delivery

Packaging Details: standard pacakge

Port: Qingdao

Product Description

Product Application

A wide taper degree is normally used when drilling with high impact hydraulic rock drills in medium hard to hard and abrasive rock formations.
Generally, the lightduty rock drill uses 7 taper or smaller taper degree, the heavyduty rock drill mainly uses 12 taper degree.
The tapered drill rods have a tough life, transferring the percussion energy from rock drill to drilling bit and then into the rock. They’re also subjected to high bending stress, not to mention corrosive water in the flushing hole.
It is forbidden to keep working when the tapered drill rod is bended, otherwise the service life of the tapered drill rod would be decreased.
If the tapered drill rod was sheared, it can be restored by re-machining a new taper.

SPECIFICATIONS
Model	Taper Degree	Drilling Rod Length	Shank Size
Hex.19mm	4°46″, 6°, 7°, 11°, 12°	0.4m-4.0m	83mm,108mm
Hex.22mm	4°46″, 6°, 7°, 11°, 12°	0.8m-6.0m	83mm,108mm
Hex.25mm	4°46″, 6°, 7°, 11°, 12°	0.8m-6.0m	108mm,159mm