Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
| Payment Terms | T/T O/A WEST UNION |
| Supply Ability | 220 Pcs Per Month |
| Delivery Time | 25-30days |
| Packaging Details | Wooden Case |
| Material | Alloy steel |
| Processing Type | Forging |
| Use | Construction, Foundation Drilling, Oil and Gas, Water well Drilling |
| Product Name | DHD NUMA TH SD QL |
| Color | Gold Other color available |
| External Diameter | 220mm-650mm |
| Brand Name | Teamwhole |
| Model Number | DHD NUMA TH SD QL |
| Certification | ISO9001:2008 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T O/A WEST UNION | Supply Ability | 220 Pcs Per Month |
| Delivery Time | 25-30days | Packaging Details | Wooden Case |
| Material | Alloy steel | Processing Type | Forging |
| Use | Construction, Foundation Drilling, Oil and Gas, Water well Drilling | Product Name | DHD NUMA TH SD QL |
| Color | Gold Other color available | External Diameter | 220mm-650mm |
| Brand Name | Teamwhole | Model Number | DHD NUMA TH SD QL |
| Certification | ISO9001:2008 | Place of Origin | China |
| High Light | hammer well drilling ，water hammer drilling | ||
Construction, Foundation Drilling, Oil and Gas, Water well Drilling DTH Hammmer with OD 220MM-650MM
"Down The Hole" (DTH) hammers offers an extensive range of DTH hammers suitable for a wide variety of drilling techniques and environments.
Our designed for drilling piles in complex conditions with rock layers and hard boulders including hardest bed rock.
1. Advantages of construction method
Use:DTH Hammer drilling is a good way to drill through cave formation and avoid stuck problem
Cave:When encountering caves,drill bit inclines to the cave.The stabilizer ensures the hole straightness
Bit stuck；One reason is cave encounter,the drill bit deviates,and the entire set of drilling tools inclines in the hole.The other,is hole collapse.A large number of rock or clay catch the drill pipe,resulting in bit stuck.Steel casing and stabilizer can resolve this problem.
2. Detailed structure information
| TH10/NUMA100/SD10 | SD12/NUMA120/QL120/DHD112/ | NUMA125/TSW14H | TH18/NUMA180 | TH24/NUMA240 | TH28/NUMA280 | |
| Length(less bit) | 1683mm | 1938mm | 1920mm | 2425mm | 2495mm | 2610mm |
| Weight (less bit) | 320kg | 675kg | 850kg | 1530kg | 2540kg | 4236kg |
| External diameter | 220mm | 275mm | 330mm | 406mm | 525mm | 650mm |
| Bits shank | TH10/NUMA100/SD10 | SD12/NUMA120/QL120/DHD112/ | SD12/NUMA120/QL120/DHD112/ | TH18/NUMA180 | TH24/NUMA240 | TH28/NUMA280 |
| Bits diameter | 240mm-311mm | 311mm-445mm | 311mm-445mm | 500mm-700mm | 600-800MM | 800-1000MM |
| Connection thread | API 5 1/2"Reg Pin | API 6 5/8"Reg Pin | API 7 5/8"Reg Pin | 273mm or 320mm Hexagonal | 320mm Hexagonal | 320mm Hexagonal |
| Air pressure | 1.7-2.4Mpa | 1.7-2.5Mpa | 1.7-2.5Mpa | 1.7-2.5Mpa | 1.7-2.5Mpa | 1.7-2.5Mpa |
* Hammers without footvalve are available.
* External diameter of hammer is adjustable according to customers' requests.
* Shock absorbers and Hexagonal Joints are available.
3. Product Application
4. Photos
Company Details
Business Type:
Manufacturer
Year Established:
2002
Total Annual:
10Million-50Million
Employee Number:
201~300
Ecer Certification：
Active Member
Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin... Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drillin...
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