Model Number	3/3.5,4,5,6,8,10,12 inches	Certification	ISO CE
Drill Rock hardness	F=6-20	Warranty	1 Year
Condition	New	After-sales Service	7X24hours available
Type	Rotary Drilling Rig	Color	As request
Processing Type	Forging	Button shape	Spherical, Ballistic, Semi-ballistic
Place of Origin	Beijing, China (Mainland)	Bit face shape	Flat, concave, convex, drop center
Brand Name	JCDRILL	Other shanks	COP,DHD,MISSION, SD
Usage	Rock drilling	Type	DTH Hammer
Material	Carbide	Machine Type	Drilling Tool

DTH Hammer
Type	Model	Outer Diameter
High pressure DTH Hammer
3 inch	JD25A	71mm
3.5 inch	JD35A/M30	82mm
4 inch	JD45A/QL40A/M40/SD4	99mm
5 inch	JD55A/QL50A/M50/SD5	125mm
6 inch	JD65A/QL60A/M60/SD6	142mm
8 inch	JD85A/QL80A/M80/SD8	180mm
10 inch	HD100A/SD10	225mm
12 inch	JD125A/SD12	275mm
14 inch	JD140A	-
Middel Pressure DTH Hammer
2.5 inch	BR1	56mm
3 inch	BR2	64mm
3.5 inch	BR3	82mm
Lower Pressure DTH Hammer
3 inch	CIR65	68mm
3.5 inch	CIR70	76mm
4 inch	CIR90	99mm
5 inch	CIR110	110mm
6 inch	CIR150	150mm
8 inch	CIR170	170mm
Back Hammer
6 inch	BH140	155mm
8 inch	BH170	190mm
10 inch	BH190	220mm
12 inch	BH240	190mm

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

High quality Low Pressure hammer cir  dth Hammer with hammer drill bit It is a kind of high air pressure DTH hammer without foot valve, and it is newest design. It is also one of the most advanced DTH hammers in the world. Urban high-rise building construction, high-speed rail, highways, bridges, subway construction, hydropower stations, nuclear power plant construction projects will involve the pile foundation project. Bassed the characteristics of the wells,oil,gas and construction drilling,our company self-designed,developed and manufactured this kind of high pressure DTH hammer. 1.Using the latest rock drilling theory,optimizing the inside structure and the size of the air distrbution,to make the DTH hammer obtain the optimal energy transfer and make it achieve faster drilling speed and lower air consumption. 2.For such projects as the drill bit break,retrieving very difficult,we specially designed a safe and reliable anti-shedding device for the bit. 3.The check valve can be replaced to replaced to the one with bigger air controlling hole to provide more efficient cutting discharge. 4.The top sub and the drive chuck have special thread,which can achieve an easier disassemble.

Low Air Pressure DTH Hammer
DTH hammer type:	CIR76	CIR90	CIR110	CIR130	CIR150	CIR170
Bit Shank:	CIR76	CIR90	CIR110	CIR110/CIR130	CIR150	All can be designed according to your requests!
Top Sub Thread:	F48x10PIN	F48x10PIN	API 23/8" RGE BOX	API 23/8" RGE BOX	F70x10PIN
Bit Diameter:	76(mm)	90-120(mm)	110-150(mm)	130-175(mm)	150-200(mm)
Working Pressure:	4-10(bar)	5-10(bar)	5-10(bar)	5-10(bar)	5-10(bar)