DTH hammer
With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material.
It also has the following advantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe
DTH Bit
DTH bit is also our main product. After mang years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.
1.high and low air pressure down-the-hole drill bits
2.Low air pressure holeDia.:65-220mm
3.High air pressure hole Dia.:85-305mm
4.Face type:drop center/concave/convex/double gauge/flat
5.Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.
------------------Specifications of High Air Pressure DTH Hammers--------------------------------
High Air Pressure DTH Hammer (with foot valve)
It is a kind of valveless high air pressure DTH hammer with foot valve.
Advantages:
1.Valveless air distribution, more reliable;
2.Piston with simple but compact design, 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, with the all heat treated parts;
5.Easy to disassemble, thanks for the top sub, drive chuck and external cylinder all are connected by multi-step thread.
DTH hammer type | HD35 | HD45 | HSD4 | HQL4 | |
Length(less bit) mm | 930mm | 1030 | 1084 | 1097 | |
Weight(less bit) kg | 25kg | 39 | 40.5 | 41 | |
External diameter mm | Φ82mm | Φ99 | Φ99 | Φ99 | |
Bit shank | DHD3.5 | COP44 DHD340 | SD4 | QL40 | |
Hole range(mm) | Φ90-110 | Φ110-135 | Φ110-135 | Φ110-135 | |
Connection thread | API 2 3/8” Reg. | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg | |
Working pressure | 1.0-1.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 28Hz | 27Hz | 27Hz | 27Hz | |
Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | 25-40r/min | |
Air consumption | 1.0Mpa | 4.5m3/min | 6.0m3/min | 6.0m3/min | 6.0m3/min |
1.8Mpa | 9.0m3/min | 10.0m3/min | 10.0m3/min | 10.0m3/min | |
2.4Mpa | / | 15.0m3/min | 15.0m3/min | 15.0m3/min |
DTH hammer type | HD55 | HD55C | HSD5 | HQL5 | |
Length(less bit) mm | 1214 | 1160 | 1175 | 1156 | |
Weight(less bit) kg | 76.5 | 72.5 | 72.5 | 73 | |
External diameter mm | Φ125 | Φ125 | Φ125 | Φ125 | |
Bit shank | COP54 DHD350R | HD55C DHD350Q | SD5 | QL50 | |
Hole range(mm) | Φ135-155 | Φ135-155 | Φ135-155 | Φ135-155 | |
Connection thread | API 2 3/8"Reg | API 2 3/8"Reg | API 3 1/2"Reg | API 3 1/2"Reg | |
API 3 1/2"Reg | API 3 1/2"Reg | ||||
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 25Hz | 25Hz | 25Hz | 25Hz | |
Recommended Rotation speed | 20-35r/min | 20-35r/min | 20-35r/min | 20-35r/min | |
Air consumption | 1.0Mpa | 9.0m3/min | 9.0m3/min | 9.0m3/min | 9.0m3/min |
1.8Mpa | 15.0m3/min | 15.0m3/min | 15.0m3/min | 15.0m3/min | |
2.4Mpa | 23.0m3/min | 23.0m3/min | 23.0m3/min | 23.0m3/min |
DTH hammer type | HD65 | HSD6 | HQL6 | HD85 | |
Length(less bit) mm | 1248 | 1261 | 1212 | 1492 | |
Weight(less bit) kg | 100 | 100 | 95 | 188 | |
External diameter mm | Φ142 | Φ142 | Φ146 | Φ180 | |
Bit shank | COP64 DHD360 | SD6 | QL60 | COP84 DHD380 | |
Hole range(mm) | Φ155-190 | Φ155-190 | Φ155-190 | Φ195-254 | |
Connection thread | API 3 1/2"Reg | API 3 1/2"Reg | API 3 1/2"Reg | API 4 1/2"Reg | |
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 23Hz | 23Hz | 23Hz | 20Hz | |
Recommended Rotation speed | 20-30r/min | 20-30r/min | 20-30r/min | 20-30r/min | |
Air consumption | 1.0Mpa | 10.0m3/min | 10.0m3/min | 10.0m3/min | 15.0m3/min |
1.8Mpa | 20.0m3/min | 20.0m3/min | 20.0m3/min | 26.0m3/min | |
2.4Mpa | 28.5m3/min | 28.5m3/min | 28.5m3/min | 34.0m3/min |
DTH hammer type | HSD8 | HQL8 | HSD10 | HN100 | |
Length(less bit) mm | 1463 | 1465 | 1502 | 1510 | |
Weight(less bit) kg | 192 | 182 | 290 | 288 | |
External diameter mm | Φ180 | Φ180 | Φ226 | Φ226 | |
Bit shank | SD8 | QL80 | SD10 | NUMA100 | |
Hole range(mm) | Φ195-254 | Φ195-254 | Φ254-311 | Φ254-311 | |
Connection thread | API 4 1/2"Reg | API 4 1/2"Reg | API 4 1/2"Reg | API 6 5/8"Reg | |
API 6 5/8"Reg | |||||
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 20Hz | 20Hz | 18Hz | 18Hz | |
Recommended Rotation speed | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | |
Air consumption | 1.0Mpa | 15.0m3/min | 15.0m3/min | 22.0m3/min | 22.0m3/min |
1.8Mpa | 26.0m3/min | 26.0m3/min | 40.0m3/min | 45.0m3/min | |
2.4Mpa | 34.0m3/min | 34.0m3/min | 55.0m3/min | 60.0m3/min |
DTH hammer type | HD1120 | HSD12 | HN120 | NH125 | |
Length(less bit) mm | 1900 | 1880 | 1900 | 1900 | |
Weight(less bit) kg | 480 | 487 | 485 | 480 | |
External diameter mm | Φ275 | Φ275 | Φ275 | Φ275 | |
Bit shank | DHD1120 | SD12 | NUMA120 | NUMA125 | |
Hole range(mm) | Φ305-445 | Φ305-445 | Φ305-445 | Φ305-445 | |
Connection thread | API 6 5/8"Reg | API 6 5/8"Reg | API 6 5/8"Reg | API 6 5/8"Reg | |
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5-1.7Mpa | 16Hz | 16Hz | 16Hz | 16Hz | |
Recommended Rotation speed | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | |
Air consumption | 1.0Mpa | 30.0m3/min | 30.0m3/min | 30.0m3/min | 30.0m3/min |
1.8Mpa | 56.0m3/min | 56.0m3/min | 56.0m3/min | 56.0m3/min | |
2.4Mpa | 78.0m3/min | 78.0m3/min | 78.0m3/min | 78.0m3/min |
High Air Pressure DTH Hammer (without foot valve)
It's a king of high air pressure DTH hammer without footvalve,our newest design. it's also one of the most advanced DTH hammer in the world.
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.
According to your request, the top sub can be made into two spanners, an air controlling hole can be drilled on the check valve to provide more efficient cuttings discharge.
DTH hammer type | HD25A | HD35A | HD45A | HD45S | |
Length(less bit) mm | 872 | 888 | 1011 | 986 | |
Weight(less bit) kg | 16 | 25 | 43.2 | 37 | |
External diameter mm | Φ71 | Φ82 | Φ99 | Φ92 | |
Bit shank | HD25 | IR3.5 | COP44 DHD340 | COP44 DHD340 | |
Hole range(mm) | Φ76-90 | Φ90-115 | Φ110-135 | Φ105-120 | |
Connection thread | T42*10*1.5 | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg | |
Working pressure | 1.0-1.5Mpa | 1.0-1.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5/1.7Mpa | 25Hz | 25Hz | 30Hz | 30Hz | |
Recommended Rotation speed | 22-35r/min | 25-40r/min | 22-35r/min | 25-40r/min | |
Air consumption | 1.0Mpa | 4.0m3/min | 3.8m3/min | 6.0m3/min | 5.0m3/min |
1.5/1.8Mpa | 6.0m3/min | 7.5m3/min | 10.0m3/min | 8.0m3/min | |
2.4Mpa | / | / | 15.0m3/min | 13.0m3/min |
DTH hammer type | HSD4A | HM4A | HQL4A | HD55A | |
Length(less bit) mm | 1012 | 1005 | 1070 | 1110 | |
Weight(less bit) kg | 40 | 40 | 40 | 69 | |
External diameter mm | Φ99 | Φ99 | Φ99 | Φ125 | |
Bit shank | SD4 | HM4 | QL40 | COP54 DHD350R | |
Hole range(mm) | Φ110-135 | Φ110-135 | Φ110-135 | Φ135-155 | |
Connection thread | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg | |
API 3 1/2"Reg | |||||
Working pressure | 1.5-2.0Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5/1.7Mpa | 30Hz | 30Hz | 30Hz | 28Hz | |
Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | 20-35r/min | |
Air consumption | 1.0Mpa | 6.0m3/min | 5.0m3/min | 5.0m3/min | 7.0m3/min |
1.5/1.8Mpa | 9.0m3/min | 9.0m3/min | 9.0m3/min | 14.0m3/min | |
2.4Mpa | 14.0m3/min | 14.0m3/min | 14.0m3/min | 19.0m3/min |
DTH hammer type | HD55S | HD55C(A) | HM5A | HSD5A | |
Length(less bit) mm | 1110 | 1102 | 1110 | 1090 | |
Weight(less bit) kg | 66 | 68 | 68.5 | 70 | |
External diameter mm | Φ116 | Φ125 | Φ125 | Φ125 | |
Bit shank | COP54 DHD350R | HD5C DHD350Q | HM5 | SD5 | |
Hole range(mm) | Φ127-145 | Φ135-155 | Φ135-155 | Φ135-155 | |
Connection thread | API 2 3/8"Reg | 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 3 1/2"Reg | API 3 1/2"Reg | ||
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5/1.7Mpa | 28Hz | 28Hz | 28Hz | 28Hz | |
Recommended Rotation speed | 20-35r/min | 20-35r/min | 20-35r/min | 20-35r/min | |
Air consumption | 1.0Mpa | 7.0m3/min | 8.0m3/min | 7.0m3/min | 7.0m3/min |
1.5/1.8Mpa | 13.5m3/min | 14.0m3/min | 14.0m3/min | 14.0m3/min | |
2.4Mpa | 18.0m3/min | 19.0m3/min | 19.0m3/min | 19.0m3/min |
DTH hammer type | HQL5A | HD65A | HM65A | HSD6A | |
Length(less bit) mm | 1090 | 1238 | 1161 | 1182 | |
Weight(less bit) kg | 67 | 98 | 90 | 90 | |
External diameter mm | Φ125 | Φ142 | Φ146 | Φ146 | |
Bit shank | QL50 | COP64 DHD360 | HM65A | SD6 | |
Hole range(mm) | Φ135-155 | Φ155-203 | Φ155-203 | Φ155-203 | |
Connection thread | API 2 3/8"Reg | API 3 1/2"Reg | API 3 1/2"Reg | API 3 1/2"Reg | |
API 3 1/2"Reg | |||||
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5/1.7Mpa | 28Hz | 25Hz | 25Hz | 25Hz | |
Recommended Rotation speed | 20-35r/min | 20-30r/min | 20-30r/min | 20-30r/min | |
Air consumption | 1.0Mpa | 7.0m3/min | 9.0m3/min | 9.0m3/min | 9.0m3/min |
1.5/1.8Mpa | 14.0m3/min | 18.0m3/min | 18.0m3/min | 18.0m3/min | |
2.4Mpa | 19.0m3/min | 26.0m3/min | 26.0m3/min | 26.0m3/min |
DTH hammer type | HQL6A | HD75A | HD85A | HM8A | |
Length(less bit) mm | 1183 | 1258 | 1359 | 1338 | |
Weight(less bit) kg | 92 | 120 | 175 | 176 | |
External diameter mm | Φ146 | Φ165 | Φ180 | Φ180 | |
Bit shank | QL60 | COP64 DHD360 | COP84 DHD380 | HM8A | |
Hole range(mm) | Φ155-203 | Φ175-216 | Φ195-254 | Φ195-254 | |
Connection thread | API 3 1/2"Reg | API 3 1/2"Reg | API 4 1/2"Reg | API 4 1/2"Reg | |
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5/1.7Mpa | 25Hz | 23Hz | 22Hz | 22Hz | |
Recommended Rotation speed | 20-30r/min | 20-30r/min | 15-25r/min | 15-25r/min | |
Air consumption | 1.0Mpa | 9.0m3/min | 11.0m3/min | 12.0m3/min | 12.0m3/min |
1.5/1.8Mpa | 18.0m3/min | 20.0m3/min | 22.0m3/min | 22.0m3/min | |
2.4Mpa | 26.0m3/min | 28.0m3/min | 28.0m3/min | 28.0m3/min |
DTH hammer type | HSD8A | HQL8A | HQL95A | HSD10A | |
Length(less bit) mm | 1330 | 1330 | 1340 | 1525 | |
Weight(less bit) kg | 174 | 171 | 203 | 316 | |
External diameter mm | Φ180 | Φ180 | Φ203 | Φ226 | |
Bit shank | SD8 | QL80 | QL80 | SD10 | |
Hole range(mm) | Φ195-254 | Φ195-254 | Φ216-254 | Φ254-311 | |
Connection thread | API 4 1/2"Reg | API 4 1/2"Reg | API 4 1/2"Reg | API 6 5/8"Reg | |
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5/1.7Mpa | 22Hz | 22Hz | 22Hz | 20Hz | |
Recommended Rotation speed | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | |
Air consumption | 1.0Mpa | 12.0m3/min | 12.0m3/min | 16.0m3/min | 22.0m3/min |
1.5/1.8Mpa | 22.0m3/min | 22.0m3/min | 28.0m3/min | 40.0m3/min | |
2.4Mpa | 28.0m3/min | 28.0m3/min | 39.0m3/min | 65.0m3/min |
DTH hammer type | HN100A | HD1120A | HSD12A | HN120A | HN125A | |
Length(less bit) mm | 1545 | 1880 | 1860 | 1880 | 1880 | |
Weight(less bit) kg | 305 | 474 | 480 | 475 | 470 | |
External diameter mm | Φ226 | Φ275 | Φ275 | Φ275 | Φ275 | |
Bit shank | NUMA100 | DHD1120 | SD12 | NUMA120 | NUMA125 | |
Hole range(mm) | Φ254-311 | Φ305-445 | Φ305-445 | Φ305-445 | Φ305-445 | |
Connection thread | API 6 5/8"Reg | API 6 5/8"Reg | API 6 5/8"Reg | API 6 5/8"Reg | API 6 5/8"Reg | |
Working pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | |
Impact rate at 1.5/1.7Mpa | 20Hz | 20Hz | 20Hz | 20Hz | 20Hz | |
Recommended Rotation speed | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | 15-25r/min | |
Air consumption | 1.0Mpa | 22.0m3/min | 28.0m3/min | 28.0m3/min | 28.0m3/min | 28.0m3/min |
1.5/1.8Mpa | 40.0m3/min | 50.0m3/min | 50.0m3/min | 50.0m3/min | 50.0m3/min | |
2.4Mpa | 65.0m3/min | 71.0m3/min | 71.0m3/min | 71.0m3/min | 71.0m3/min |
---------------------------------Selection of DTH BIT FACE SHAPE AND CARBIDE BUTTON SHAPE--------------------
A: Bit face shape selection
DropCenter Bit
For high penetration rates in soft to medium-hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
Concave face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
Convex face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
Double Gauge face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
B: Insert Carbide Button Shape Selection
Matching the insert to the job requirements is essential in achieving the desired results. Different buttons is ideal for different ground conditions, abrasion levels, PSIs and penetration levels. In general, the larger the number of gauge buttons the better overall performance, especially in hard rock.
Hemispherical
• Height 0.5 Ø
• Application Strength - multipurpose
• Best suited to hard ground
• 25,000 to 45,000 PSI (170 to 300 MPa)
• Abrasive to very abrasive
Ballistic Button
• Height 0.75 Ø
• Application Strength - fast penetration
• Best suited to soft ground
• 10,000 to 20,000 PSI (70 to 140 MPa)
• Non abrasive ground
Parabolic Button (semi ballistic)
• Height 0.6 Ø
• Application Strength - fast penetration
• Best suited to medium ground
• 15,000 to 25,000 PSI (100 to 170 MPa)
• Mildly abrasive ground
Conical Button
• Height 0.65 Ø
• Application Strength – fast penetration
• Suited for all non-abrasive ground types
• Smaller contact area
• Best suited for smaller diameter bits
All Items will be packed by PLYWOOD BOX for bulk order, or by Carton for small quantities.
Shipping Methods we will suggest BY SEA for more than 1CBM and BY AIR for less than 200kgs.
One piece for sample is available.
Xiamen Bestlink Factory Co., Ltd is committed to provide the best drilling and cutting machine, tools and accessories products in marble and granite stone quarrying, as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite and ornamental stones in china.
we offers a vast range of hydraulic and pneumatic drills and machines for diamond wire cutting as well as all kinds of accessories for quarrying activities.
With years of experience,our quality products are being exported to more than 45 countries all over the world including USA, and Europe with high reputation.
We have two main business field:
1) All Drilling and Quarrying equipments
website: www.quarryingtools.com
2) Natural Stone Processing/Cutting/Splitting machines
website: www.split-stone.com
Our products range:
1. Expansive mortar (non-explosive demolition agent, soundless cracking agent)
2. Hand-held rock drill Y6,Y20, Y24, and Y26 (pneumatic),TY24C
3. Fully hydraulic rock drill BH26, BH28 (with pushing cylinder)
4. Pneumatic rock drill with pushing air-leg YT18, Y19A,YT24, YT28
5. Internal combustion rock drill (hand held, gasoline) YN27
6. Line drilling machine
7. DTH driller, diamond wire saw
8. Button bits, cross bit, chisel bits
9.Plug hole rod, Extension rod, shank adapter,coupling sleeves
10. DTH hammers & bits,DHD, COP, IR, Bulroc and SD series
11. Diamond wire rope, hydro-bag (steel), air bag (polymer) for blocks pushing
12. Stone cutter for block cutting
13. Hydraulic splitting machine
14. Wedges & feathers
15. Hose (for air, water, hydraulic...)
The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Within 10 days supplied from stock
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Sale Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality