HJG Rock Drill Bit Eccentric Casing System

1-20 Pieces
21-99 Pieces
>=100 Pieces
Min. Order
1 Piece
Company Information

Changsha Heijingang Industrial Co., Ltd.

CN Manufacturer, Trading Company
Response Time
Response Rate:
2 Years Paid Supplier Gold Supplier Onsite Check
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Quick Details

Port: Shanghai
Payment Terms: L/C,T/T,Western Union
Supply Ability: 20000 Piece/Pieces per Month
Place of Origin: Hunan China
Brand Name: HJG
Model Number: DHD3.5 DHD340 DHD350 DHD360 DHD380 QL30 QL40 QL50 QL60 QL80 SD10
Material: Carbon Steel
Certification: ISO 9001
Type: Drill Bit
Machine Type: Drilling Tool
Processing Type: Forging
Use: Well Drilling
Application: water well drilling
Advantage: Wear Resistant
Diameter: 108-325mm
Item: Drilling Equipment Bit Tricon Bit
Usage: Hole Drilling
Color: Required
Product name: Eccentric Casing Drilling System
Name: Hole Drill Bit
Delivery Detail: Within 30 working days.
Packaging Detail: Wooden box

Product Description


  • Hardening treatment of the part’s surface with longeroperating life and excellent anti-wearproperties.
  • Structural Optimisation, improving the structural strength and ease of operation
  • Superior Performance, high drilling speed with stable and reliable performance


Application Range

It is suitable for drilling water wells, geothermal wells, short micropyles, medium mini-type, grouting hole of building & demand harbour project.



Factory View









Frequently Asked Question:  

1.Are you a manufacturer or a trade company?

We are a manufacturer of rock drilling equipments and pneumatic tools in China over 20 years.


2.How many workers in your factory?And what is your company scale?

Area of our factory: over 50,000SQM;
Numbers of our employees: Over 700;
Numbers of our equipment &facilities: Over 1000 sets
Numbers of DTH Hammer production yearly: Over 20,000 sets
Numbers of Drill bits production yearly: over 250,000 pcs
Annual turnover in USD: 60 Million
Market share(China): 40%-50%
Export market volume: 30 Million USD


3.Where are your company?

We are located in Changsha city,Hunan province,where our first chairman Mao was born.1 and half hours by car from the nearest Huanghua international airport,2 and half hours by CHR express from Guangzhou nan station to Changsha city.


4.Why choose us?

1) We have more than 20 years of researching,developing, manufacturing and exporting high quality rock drilling equipments and penumatic tools to the over 30 countries.

2) All relevant spare parts with high performance and wear resistance and compatible with IR, DHD, SD, QL, MISSION, NUMA, COP, BR, MACH etc.

3) Stable delivery time within 25 working days.

4) Directly factory price.


5.Which port do you shipping from?

We usually ship container from Shanghai port and can make change according to your request.


6. Can you accept OEM & ODM ?

Yes, both of them are acceptable.


7.What is your minimum order quantity?

Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity.


8.What is your payment term?

We usually accept T/T, L/C, and but it' s negotiable.


Quality warranty:
Our hammers are made of high quality steel and all spares are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Using plywooden cases and pallet for exporting to protect products and avoid the damagement during transportation. Also we can customize package according to your special requests.

Production time:
Generally, Production time is 15 -25 days.

By air, By Express or By sea according to your requests.