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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
Product Details:
Place of Origin: China
Brand Name: MIROC
Certification: ISO
Model Number: Shank 22 mm x 159 mm
Payment & Shipping Terms:
Minimum Order Quantity: 50
Price: negotiation
Packaging Details: Wooden Plate
Delivery Time: 25 days
Payment Terms: T/T or L/C
Supply Ability: 20000 pieces per month
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Detailed Product Description
Type: Drill Shank Material: High Manganese Steel
Use: Ore Mining Color: Black
Key Word: Tapered Rock Drill Rod Application: Mine And Quarry,concrete
High Light:

drill extension rod

,

rock drill rod

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 0
 
 

Contact Details
KSQ Technologies (Beijing) Co. Ltd

Contact Person: Yingkai

Tel: +8618501231988

Send your inquiry directly to us (0 / 3000)

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