Long Life Good Quality DTH Hammers

Prod Model:	GL335
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Item:	DTH Hammer
Series:	SD HD Ql Cop Br DHD Mission
Aplication:	DTH Drilling. Coal Mining, Quarry
Usage:	Use Together with DTH Button Bits
Sizes:	3 Inch to 12 Inch
Power Type:	Pneumatic
Condition:	New
Color:	Red or as Your Request

Product Description

Product Description
Qualified High Air Pressure GL335 DTH Hammer, Water Well Drilling Hammer

1, valveless air distribution. More reliable.
2, simple design of the piston, long life.
3, More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4, fewer internal parts, simple structure, longer life, less failure and easier to maintain becayse all the parts are heat treated.
5, It is easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.

Available series of DTH hammer:
1) high pressure
SD series hammer: SD 5, SD 6, SD 8 and SD 12 DTH Hammers.
QL series hammer: QL 50, QL 60, QL 80 DTH Hammers.
HD series hammers: DHD 3.5, DHD 340. DHD 350, DHD 360, DHD380 DTH Hammers.

Mission series hammers: M30, M40, M50, M60, M80 DTH Hammers.
Cop series hammers: Cop 32/34, Cop 42/44, Cop 54/64 DTH Hammers.
2) low air pressure:
BR1, BR2, CIR 70, CIR 90, J60, J80, J100, J150, etc.

About Us:
1. Our factory has been specialized in manufacturing drilling tools and spare parts since 1980.
2. We have advanced technology and equipment.
3. Our technician has more than 25 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA,
Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.
Detail introduction: 

It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world. high Air Pressure without foot value DTH Hammers

It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
Durpoten is specializing in designing, manufacturing and supplying top quality for DTH (Down the hole) hammers in various size and types.

The series:
1). Low pressure DTH hammers;
2). Medium pressure DTH hammers;
3). High Pressure DTH hammers;
4). Reverse circulation hammers.

Hammer shank available:
1). BR shank series: BR1, BR2, BR3;
2). Cop shank series: Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;
3). DHD shank series: DHD3.5, DHD340,DHD350, DHD360, DHD380;
4). SD shank series: SD4, SD5, SD6, SD8, SD10, SD12, SD15, SD18;
5). Mission shank series: Mission40, Mission50, Mission 60, Mission 80;
6). QL shank series: QL30, QL40, QL50, QL60, QL80;
7). NUMA shank series: NUMA120, NUMA125, NUMA180, NUMA240;
Other hammer shanks can be available according to customer's drawing or samples.

----Type and Technical Specification of High Pressure DTH Hammers
Item	GL330	GL335	GL340A		GL345	GL350		GL355	GL360		GL380	GL3120
Drilling Dia. (/mm)	82-85	90-93	105-130		105-130	130-152		130-152	152-305		203-350	302-508
Hammer Length(mm)	867	908	1052		1034	1387		1220	1450		1551	1934
Outside Dia. (/mm)	71	81	92		98	114		124	136		181	275
Weight(kg)	19	21.8	38		39	69		74	126		277	642
Working Pressure(Mpa)	0.8-2.1	0.8-2.1	0.8-2.1		0.8-2.1	0.8-2.1		0.8-2.1	0.8-2.1		0.8-2.1	0.8-2.1
Air Consumption (M3/Min.)	3-12	4.3-14.2	3.5-18		3.5-15	5.7-18		6.5-18	8.5-25		12-31	14-45
Torque(N.M)	150	205	304		335	590		700	822		1560	2410
Impact Frequency (Times/Min.)	≥800	950-1500	≥800		≥800	810-1470		810-1500	820-1475		860-1510	980-1446
Connection 1	48.8×4.2	API 2-3/8	API 2-3/8		API 2-3/8	API 3-1/2		API 2-3/8	API 3-1/2		API 4-1/2	API 6-5/8
Connection 2	47-6	53-8	64-8		64-8	84-8		84-8	99.5-8		128-10	184-8
High Efficient High Pressure Hammer
Item	GL345A			GL355K			GL360K			GL380K
Drilling Dia. (/mm)	105-130			140-152			165-219			203-350
Hammer Length(mm)	1034			1098			1372			1504
Outside Dia.(/mm)	98			124			152			180
Weight(kg)	39			70			92			230
Working Pressure(Mpa)	0.8-2.1			0.8-2.1			0.8-2.1			0.8-2.1
Air Consumption (M3/Min.)	3.5-15			4.5-18			9- 26			9.6-24.8
Torque(N.M)	335			800			1150			1870
Impact Frequency (Times/Min.)	≥800			840-1500			950-1650			1100-1550
Connection 1	API 2-3/8			API 2-3/8			API 3-1/2			API 4 1-2
Connection 2	64-8			84-8			99.5-8			128-10