Hjg Top Hammer and DTH Hammer Double Casing Drilling System

• Customization: Available
• Customized: Customized
• Standard: ISO
• Model NO.: top hammer and dth hammer double casing drilling
• Length: Length
• Type: Casing System Drilling
• Material: Tungsten Carbide
• Usage: Well Drilling, Rock Drilling
• Condition: New
• Mining Object: Well Reaming Before Drilling
• Outer Dia: 108mm
• Inner Dia: 95mm
• Reamed Dia: 118mm
• Inner Dia. of Casing Shoe: 87mm
• Hammer Type: DHD3.5 Ql30
• Drill Pipe: 76mm
• Transport Package: Wooden Box
• Specification: 3 Inch to 10 Inch
• Trademark: HJG
• Origin: China
• HS Code: 8207199000
• Production Capacity: 10000

Product Description

APPLICATION RANGE:
Widely used for drilling water wells,geothermal wells,short mircoplies,medium mini-type grouting hole of building,damand habour project.

OPERATION GUIDELINES:
1. When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly.
2. When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in, allowing the drill bit assembly to be pulled up through the casing.
3. Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.
4. Drilling continues to the desired depth in the bedrock using a conventional drill string.





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 17 years.

2.How many workers in your factory?

We have more than 700 employees, including factory workers,sales people,QC ,R&D and management team.

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 17 years of researching,developing, manufacturing  and exporting high quality rock drilling equipments and penumatic tools to the global market.

2)High quality compatible with Sandvik, Atlas Copco, etc

3)Unbeatable price

4)Excellent service.

5.Which port do you shipping from?

We usually ship container from Shanghai port.Guangzhou port is available too.

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 can accept T/T, L/C at sight, West union and in cash.

9.How about the delivery time?

It all depends,generally it takes about one month both in peak and off season.

Weclome our dearest customers to Visit our factory and to choose our great product ranges!