Specifications

1.Different Structure:With inner drill rods and With inner hammer
2.Simple structure
3.Certificate: ISO9001:2008, SONCAP

Double casing drill bit with DTH hammer  to grouting holes

 

 

Application Range: It can be widely used in drilling for grouting holes in projects such as cofferdam,foundation and geothermall and etc.

Working Principles:As water or compressed air for medium,the discharged head make the casing tube and drill rod totate and penetrate.

Structure: with inner drill rods and with inner hammer and Easy operation

Technical parameters

	Ring Bit				Inner Bit
Outer Dia. of  Casing (mm)	Bore Hole  Dia. (mm)	Thread  (mm)	Buttons Dia.×Qty.	Weight (kg)	Drill Rod Dia.  (mm)	Drill Bit Dia.  (mm)	Thread	Buttons Dia.×Qty.	Weight  (kg)
118	125	104.2	12×13mm/6×12mm	7.0	73	85	R56	8×12mm/6×11mm	4.5
133	142	122	12×13mm/6×13mm	7.5	73	99	R56	8×14mm/6×14mm	5.0
146	155	134	12×14mm/4×13mm	8.0	73	115	R56	8×14mm/7×12mm	6.0
168	175	153.9	12×12mm/6×12mm	10.5	73	127	R56	9×14mm/8×14mm	7.0

 

 

 

 

 

How to complete the whole deal

Step: 

1. Firstly decide the design, material and color 

2. Decide the size in accordance with client's requirement and our

 recommendation 

3. We will give the best offer. 

4. Client's accept the offer and we send proforma invoice. 

5. Client transfers 30%-50% deposit and production begins

6. After production, we will send ready products photo 

7. After client's confirmation, we will arrange shipment, and send 

copy shipping documents like B/L, commercial invoice and 

packing list 

8. Client transfer balance payment and we will send original 

documents by DHL or EMS