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7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
Specifications
Place of Origin :
China
Brand Name :
MIROC
Model Number :
Shank 22 mm x 159 mm
MOQ :
50
Packaging Details :
Wooden Plate
Delivery Time :
25 days
Payment Terms :
T/T or L/C
Supply Ability :
20000 pieces per month
Price :
negotiation
Certification :
ISO
Type :
Drill Shank
Material :
High Manganese Steel
Use :
Ore Mining
Color :
black
Key word :
Tapered rock drill rod
Application :
Mine and quarry,concrete
Description

7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod

Description

Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Different taper sizes have different characteristics when it comes to the “knock-off” index – the smaller angle will prevent the bit from spinning.

• Suitable for small hole range
• Widely used in Dimensional Stone Quarrying Industry
• Widely used in Underground Mining Industry


Color: Based on Customer requirements


Material: Tungsten carbide and high strength alloy steel


Processing: CNC milling and proprietary heat treatment process


Type: 7° Tapered Hex 22 Tapered Rod Shank 22 mm x 159 mm


Applications
• Underground Mining
• Tunneling

Why There are many different Taper?

Different taper angles are used for different rock formations and rock drills. A wide taper angle is normally used when drilling with high impact hydraulic rock drills in medium hard to hard and abrasive rock formations. Taper angles of 11°and 12° are common on modern rigs.

A narrow taper angle of 7°is used for low impact rock drills and softer rock formations. This angle can also be used if you have spinning problems when using 11° or 12° equipment.

In addition, a 4°46' angle is ideal for soft rock when you’re using pneumatic or hydraulic drill rigs – to prevent bits from spinning or becoming detached.

Specification

Part Number Product Code and Brief Description

Length

(mm)

Length

(ft/inch)

Weight

(kg)
4148300199

H25-7D-4000, 7° Tapered Hex 22 Tapered Rod,

Shank 22 mm x 159 mm

 4000 13 1/8 16.1
4148300200

H25-7D-4700, 7° Tapered Hex 22 Tapered Rod,

Shank 22 mm x 159 mm

 4700 15 3/7 18.9
4148300201

H25-7D-5000, 7° Tapered Hex 22 Tapered Rod,

Shank 22 mm x 159 mm

 5000 16 2/5 22.1
4148300202

H25-7D-5500, 7° Tapered Hex 22 Tapered Rod,

Shank 22 mm x 159 mm

 5500 18 22.1
4148300203

H25-7D-6000, 7° Tapered Hex 22 Tapered Rod,

Shank 22 mm x 159 mm

 6000 19 2/3 24.1

7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod

Product tags

t38 rock drill rods

,

tungsten rock drill

,

yn27c rock drill
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7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod

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Product Detail
Place of Origin :
China
Brand Name :
MIROC
Model Number :
Shank 22 mm x 159 mm
MOQ :
50
Packaging Details :
Wooden Plate
Delivery Time :
25 days
Contact Supplier
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod
7° Coal Mining Shank 22 mm x 159 mm Rock Hex Rock Drill Rod

KSQ Technologies (Beijing) Co. Ltd

Verified Supplier
12 Years
beijing, beijing
Since 2009
Business Type :
Manufacturer, Exporter
Main Products :
Rock Drilling Tools, DTH Drilling Tools, Button Drill Bit
Total Annual :
3000000-5000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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