Basic Info.
Certification
CE, RoHS, ISO 9001:2000, ISO 9001:2008
Standard
AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN
Surface Treatment
Polishing
Manufacturing Process
Forging
Color
Yellow, Red, Blue,Orange, Green etc.
Depth of The Hole
10m-1000m
Diameter of The Hole
90mm-350mm
Transport Package
Wooden Case
Specification
CIR90/CIR100/CIR110/CIR130/CIR170/CIR300
Origin
Zhuzhou, Hunan, China
Product Description
Best quality DHD340 series Water Well Drilling Rigs dth drill bits Brief introduction of our DTH hammer:Bit face shape selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. 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.
4. 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.
5. 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.
Low Air Pressure DTH Hammer and drill bit:
DTH hammer type | CIR76 | CIR90 | CIR110 | CIR130 | CIR150 | Bit Shank: | CIR76 | CIR90 | CIR110 | CIR110/CIR130 | CIR150 | 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) | For more information, please contact our customer service. |
DTH bits specifications:
Hammer inch | Bits diameter | Shank |
Metric | Inch |
1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 M30/DHD3.5/BR3 |
4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 SD4/M40/QL40 |
5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 SD5/M50/QL50/BR5 |
6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 M60/QL60/Bulroc BR6 |
8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 QL80/M80 |
10" | 254mm-380mm | 10"-15" | SD10 NUMA100 |
12" | 305mm-508mm | 12"-20" | DHD1120/SD12 NUMA120/NUMA125 |
DTH hammer for rock drilling:
Type | Model | Length (mm) | Weight (kg) | External Dia.(mm) | Hole Range (mm) |
3.5 inch | DHD3.5 | 930 | 25 | Φ82 | Φ90-110 |
4 inch | DHD340 | 1030 | 39 | Φ99 | Φ110-135 |
SD4 | 1084 | 40.5 | Φ99 |
QL4 | 1097 | 41 | Φ99 |
Mission40 | 1005 | 40 | Φ99 |
5 inch | DHD350 | 1214 | 76.5 | Φ125 | Φ135-155 |
SD5 | 1175 | 72.5 | Φ125 |
QL5 | 1147 | 73 | Φ125 |
Mission50 | 1110 | 68.5 | Φ125 |
6 inch | DHD360 | 1248 | 100 | Φ142 | Φ155-190 |
SD6 | 1261 | 100 | Φ142 |
QL6 | 1212 | 95 | Φ146 |
Mission60 | 1161 | 90 | Φ146 |
8 inch | D85 | 1492 | 188 | Φ180 | Φ195-254 |
SD8 | 1463 | 192 | Φ180 |
QL8 | 1465 | 182 | Φ180 |
Mission80 | 1338 | 176 | Φ180 |
10 inch | SD10 | 1502 | 290 | Φ226 | Φ254-311 |
NUMA100 | 1510 | 288 | Φ226 |
12 inch | DHD1120 | All can be designed according to your requests! |
Numa120 |
Numa 125 |
Picture of high air pressure DTH drill bit:
Picture of high air pressure DTH hammer:Picture of our factory:
How to Chose the Right Products :Choosing the right hammer is determined by drill machines (mainly compressor output), drilling hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for compressed air to flush cuttings and clean the hole. The optimum range of hole size for blast-hole drilling with DTH method is 90~254 mm (3-1/2"~ 10") with 3.5 ~ 8" hammers. Smaller blast holes are generally drilled with top-hammer tools, while larger holes typically with rotary drilling tools. In other applications, like foundation drilling, DTH hammers can be used in hole size up to 1,000 mm (39-3/8"). Usually, the smallest hole diameter a DTH hammer can drill is its nominal size, for example, a 4"hammer would drill a 4" (100/102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole diameter reduces, airflow is restricted. Maximum hole size for production drilling is the nominal hammer size plus 1"for 5" and smaller hammers and plus 2 for 6" and bigger hammers, for example, for a 4" hammer the maximum hole size is 5" (127/130mm) while for a 8"hammer the maximum hole size is 10" (254mm). 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.
FAQ:1.Are you a manufacturer or a trade company?
We are a manufacturer of rock drilling tools and tungsten carbide products in China over 16 years.
2.Where is your company?
We are located in Chinese largest production base of tungsten carbide, Zhuzhou city, Hunan province. Half an hour by car from Changsha airport, two and a half hours by CHR express from Guangzhou station to Zhuzhou city.
3.Why choose Chdrill?
1)We have more than 30years of researching, developing, manufacturing and exporting high quality rock drilling tools and tungsten carbide products to the global market.
2)High quality.
3)Competitive price.
4)Excellent customer service.
4.Which port do you shipping from?
We usually ship container from Shanghai port and Shenzhen, Guangzhou port are available too.
5.What is your minimum order quantity?
Our MOQ are 1pc or 1 set, the price may rely on the order quantity.
6.What is your payment term?
We accept T/T, L/C at sight, West union and PayPal.
7. How about the delivery time?
For general products, we have in stocks.
For others, it depends on the quantity, generally it takes about 15-25workdays.
8. Can I visit your factory?
Warmly welcome to our factory. We will pick you up at Changsha air port or Zhuzhou West Station or Zhuzhou station.For more low and high air pressure DTH drill bit, please contact our customer service: Thanks for reading---Please contact me at 86-13873343601
Address:
No. 78, New Street Longtoupu, Shifeng District, Zhuzhou City, Hunan Province
Business Type:
Manufacturer/Factory
Business Range:
Computer Products, Industrial Equipment & Components, Manufacturing & Processing Machinery, Packaging & Printing, Tools & Hardware
Management System Certification:
ISO 9001, ISO 14001, ISO 20000, OHSAS/ OHSMS 18001
Company Introduction:
Zhuzhou Changhong Mining Machinery Co., Ltd. is located in Zhuzhou Hunan, which has rich and valuable experience in manufacturing mining & engineering products. The company is informed with the product, technology and latest development in mining & engineering industry. Our business philosophy is to "Develop on Quality and Win reputation on Integrity". To create a new brand "Changhong Drill" and meet overseas and domestic market in mining & engineering industry. <o: P>
Changhong Drill manufactures high, medium and low air-pressure DTH hammers and drill bits, concentric and eccentric drilling system, tunnel TBM cutter, various threaded drill bits and shank adapter, coupling sleeve, drill pipe and rock drilling accessories. All of our products are compatible with world famous brand products such as Atlas, Ingersoll Rand, Sandvik. They are widely used in construction sites of mining drilling, ground excavating, tunnel drivage, transportation, irrigation works and hydropower, water well, foundation treatment, exploration, applicable for rock drilling and cutting tools under various geological conditions. <o: P>
We have our own R&D team and more than 30 years experience in drilling industry. High quality raw material and advanced productive technology, rigorous testing method to make sure of high performance and quality products. Further more, we provide with reasonable price and integrity service. Welcome to Zhuzhou Changhong Mining Machinery Company. <o: P>