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

DTH hammers from JCDRILL offer breakthrough performance in challenging Geothermal and Waterwell applications. The robust non ported piston design dramatically improves both the piston and internal component life when drilling under a column of water. A built in choke facility allows the driller to adjust the volume of air through the hammer to optimise cuttings evacuation. maximise operating life and are suitable for operation at air pressures up to 30 bar (435 psi).   DTH Hammers Advantages: 1. Simple and reasonable design, easy to assemble and dis-assemble, low problem rate. 2. Low air consumption, smooth drilling, maximum impact power, high penetration rate. 3. Multiple precise heat-treatment with all hammer parts to provide long lifespan under roughest working conditions.

Type	Model	Length	Weight	External Dia.(mm)	Hole Range
		(mm)	(kg)		(mm)
3.5 inch	DHD3.5	930	25	82	90-110
4 inch	DHD340	1030	39	99	110-135
	SD4	1084	40.5	99
	QL40	1097	41	99
	Mission40	1005	40	99
5 inch	DHD350	1214	76.5	125	135-155
	SD5	1175	72.5	125
	QL50	1147	73	125
	Mission50	1110	68.5	125
6 inch	DHD360	1248	100	142	155-190
	SD6	1261	100	142
	QL60	1212	95	146
	Mission60	1161	90	146
8 inch	D85	1492	188	180	195-254
	SD8	1463	192	180
	QL80	1465	182	180
	Mission80	1338	176	180
10 inch	SD10	1502	290	226	254-311
	NUMA100	1510	288	226
12 inch	DHD1120	All can be designed according to your requests!
	Numa120
	Numa 125
14 inch	JD140A