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Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

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Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

China Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier

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Product Details:

Place of Origin: China (Mainland)
Brand Name: JCDRILL
Certification: ISO9001,CE
Model Number: All Models

Payment & Shipping Terms:

Minimum Order Quantity: 5pcs
Price: $15.00 - $50.00/pc
Packaging Details: Wooden box
Delivery Time: 3-15 work days
Payment Terms: L/C, T/T, Western Union, D/A, D/P, MoneyGram
Supply Ability: 100000pcs/year
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Detailed Product Description
Parts Name: Over Burden Bits Brand: JCDRILL
Color: Customized Factory Visit: Support
Sample Order: Support Usage: Hole Drlling

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

 

 

JCDRILL DTH Over Burden Concentric Bits
Description
The eccentric reamer drill is an overburden drilling system designed for conditions where a cased hole is required. Collapsing holes tend to make overburden drilling expensive, with lost drilling equipment and down time.
The eccentric designed bit rotates outward and drills a larger diameter hole than the casing, avoiding cave-ins, wash-outs, and other problems common in normal drilling operations in soft and gravel-type strata or loose rock. Since 90% of the world's overburden drilling is in loose strata, potential utilization is enormous.
After reaching the designated depth, the reamer-bit is retracted by reversing the direction of the rotation and by applying tension on the reamer-bit, which has a taper and will retract into the casing for easy removal of the entire drill-string. This leaves the casing in place for other applications or for removal at a later date. The method is designed for use with flush joint threaded pipe or welded-type casing and provides a bit size for a wide variety of different casing wall thicknesses.

 

 

Application

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Parametre

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Usage

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

 

Minimum Order Quantity: N/A
Price:  
Packaging Details: Standard Export Delivery Package
Delivery Time: 7days
Payment Terms: T/T
Supply Ability: Based on Detailed Order

Certification

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Delivery
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
FAQ
1. Shipping time for an order
     We have many stock. As usual, we can delivery the goods as soon as we get the full payment.
2. Quality Control
   Strict inspection and testing for every order before shipping out .
3.How can we trust your company?
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4.Other Questions?
   Please add me on whatsapp or wechat by:+86 13521157051 or send inquiry to sales3@rockdrillingrig.com.
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
 
 

 

Contact Details
Beijing Jincheng Mining Technology Co., Ltd.

Contact Person: Cedar Jiang

Tel: +8613521157051

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