Beijing Jincheng Mining Technology Co., Ltd.
| Payment Terms | L/C, T/T, Western Union, D/A, D/P, MoneyGram |
| Supply Ability | 100000pcs/year |
| Delivery Time | 3-15 work days |
| Packaging Details | Wooden box |
| Parts Name | Over burden bits |
| Brand | JCDRILL |
| Color | customized |
| Factory Visit | Support |
| Sample Order | Support |
| Usage | Hole drlling |
| Brand Name | JCDRILL |
| Model Number | All Models |
| Certification | ISO9001,CE |
| Place of Origin | China (Mainland) |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, Western Union, D/A, D/P, MoneyGram | Supply Ability | 100000pcs/year |
| Delivery Time | 3-15 work days | Packaging Details | Wooden box |
| Parts Name | Over burden bits | Brand | JCDRILL |
| Color | customized | Factory Visit | Support |
| Sample Order | Support | Usage | Hole drlling |
| Brand Name | JCDRILL | Model Number | All Models |
| Certification | ISO9001,CE | Place of Origin | China (Mainland) |
| High Light | dth drill bits ，down the hole hammer bits | ||
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
Parametre
Usage
| 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
Delivery
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 .
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Company Details
Business Type:
Manufacturer
Year Established:
1999
Total Annual:
30 Million-40Million
Employee Number:
250~300
Ecer Certification：
Verified Supplier
Beijing Jincheng Mining Technology Co., Ltd. (JCDRILL) is located in Beijing, China. For more than 20 years, we have specialized in the research, development, and production of rock blasting drilling rigs, water well drilling rigs, diamond core drilling rigs, anchor drilling rigs, and related access... Beijing Jincheng Mining Technology Co., Ltd. (JCDRILL) is located in Beijing, China. For more than 20 years, we have specialized in the research, development, and production of rock blasting drilling rigs, water well drilling rigs, diamond core drilling rigs, anchor drilling rigs, and related access...
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