High Air Pressure DTH Hammer

Short Description:

DTH hammers are working units of DTH drill rigs, which drive piston forth and back to impact DTH bits for breaking stones by compressed air.

Send email to us Download

Product Detail

Product Tags

Advantages:

it is a kind of high air pressure DTH hammer without foot valve, and it is our newest design. lt is also one of the most advanced DTH hammers in the word.

It has the following advantages：

Out of the trouble of foot valve fracture and expansion and contraction.
Lower energy consumption and higher impact frequency.The drilling speed is 15%-30% higher than the one with foot valve.
Simple structure, reliable parts, long life span, easy and cheap maintenance.
Lower air and oil consumption.The oil consumption is about 10% lower than the one with foot valve.

Application:

DTH hammers are working units of DTH drill rigs, which drive piston forth and back to impact DTH bits for breaking stones by compressed air. Our company’s Kaishan high pressure dth air hammer is suitable for all working conditions and performs outstandingly in medium and high pressure open-pit engineering drilling and particularly well in water drilling and special engineering drilling.

Model	K3	K4	K5	K6	K8	K10
Item Description	Weight (kg)
Top Sub	4.45	6.83	14.42	20.33	37.32	64.8
O Ring	0.01	0.01	0.01	0.01	0.01	0.01
Check Valve Bond	0.14	0.26	0.58	0.58	0.68	1.53
Spring	0.01	0.01	0.05	0.05	0.1	0.1
Air Distributor	0.78	1.2	2.13	3.54	6.3	13.4
Inner Cylinder	1.45	1.76	3.74	5.4	7.5	13
Piston	4.76	8.5	15.73	24.43	44.2	71.5
Outer Cylinder	9.56	15.5	22.95	29.17	68.11	94.54
Guide Bush	0.88	1.35	2.6	6.5	6.5	11.7
O Ring	0.01	0.01	0.01	0.01	0.01	0.01
Split Bush	0.15	0.19	0.54	0.86	1.3	2.2
Drive Sub	1.96	3.74	6.73	7.38	19.7	27

Technical Date
Model	K3	K4	K5	K6	K8
Length (Without Bit)	889mm	985mm	1107mm	1238mm	1355mm	1484mm
Weight(Without Bit)	25kg	40kg	67kg	111kg	192kg	302kg
External Diameter	Φ82mm	Φ99.5mm	Φ125mm	Φ148mm	Φ185mm	Φ225mm
Bit Shank	K3**IR3.5	K3**COP44/DHD340	K5**COP45/DHD350	K6**COP64/DHD360	K8**COP84/DHD380	K10**
Hole Range	Φ90-Φ105mm	Φ110-Φ130mm	Φ135-Φ165mm	Φ155-Φ190mm	Φ195-Φ254mm	Φ254-Φ311mm
Connection Thread	API 2 3/8" REG	API 2 3/8" REG	API 2 3/8" REG API 3 1/2" REG	API 3 1/2" REG	API 4 1/2" REG	API 5 1/2" REG
Working Pressure	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.7-3.5Mpa
Impact Rate at 17 Bar	25Hz	31Hz	28Hz	25Hz	22Hz	20Hz
Recommended Rotation Speed	25-40 r/min	22-35 r/min	20-35 r/min	20-30 r/min	15-25 r/min	20-40 r/min
Air Consumption	1.0 Mpa: 4.8 m³/min	1.0 Mpa: 6 m³/min	1.0 Mpa: 7 m³/min	1.0 Mpa: 9 m³/min	1.0 Mpa: 12 m³/min	1.0 Mpa: 22 m³/min
	1.8 Mpa: 9.6 m³/min	1.8 Mpa: 10 m³/min	1.8 Mpa: 14 m³/min	1.8 Mpa: 18 m³/min	1.8 Mpa: 23 m³/min	1.8 Mpa: 40 m³/min
	2.4 Mpa: 12.6 m³/min	2.4 Mpa: 15 m³/min	2.4 Mpa: 19 m³/min	2.4 Mpa: 26 m³/min	2.4 Mpa: 31 m³/min	2.4 Mpa: 65 m³/min