Hunan New Diamond Construction Machinery Co., Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | According to order quantity |
| Delivery Time | 5-8 work days |
| Packaging Details | Carton packaging and wooden box packing |
| IADC Code | 412 |
| Circulation Type | Jet Air |
| Pin Connection | 7 7/8" API |
| Metric Bit Diameter | 200mm |
| Product Weight | 34KG |
| Weight on Bit | 7,880-15,750Ibs |
| Brand Name | New Diamond |
| Model Number | 7 7/8" 412 200mm Tricone drill Bits |
| Certification | ISO9001:2008 |
| Place of Origin | Hunan, China (Mainland) |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | According to order quantity |
| Delivery Time | 5-8 work days | Packaging Details | Carton packaging and wooden box packing |
| IADC Code | 412 | Circulation Type | Jet Air |
| Pin Connection | 7 7/8" API | Metric Bit Diameter | 200mm |
| Product Weight | 34KG | Weight on Bit | 7,880-15,750Ibs |
| Brand Name | New Diamond | Model Number | 7 7/8" 412 200mm Tricone drill Bits |
| Certification | ISO9001:2008 | Place of Origin | Hunan, China (Mainland) |
| High Light | three cone bit ，milled tooth drill bit | ||
The main structural features
1, the use of high strength and toughness carbide teeth, improve the impact resistance of teeth to reduce the broken tooth rate;
2, Optimized design of the number of teeth, the number of teeth, tooth height and unique alloy tooth profile, give full play to the bit cutting ability and cutting speed;
3, the use of snap-lock locking cone, can withstand high-pressure drilling;
4, cone welding inlay reduction alloy, improve anti-bite bearing capacity;
5, the use of highly saturated nitrile rubber O-ring, the optimized seal compression to improve the reliability of bearing seals;
6, the use of all-rubber reservoir can limit the pressure differential and prevent the drilling fluid from entering the lubrication system, providing a good lubrication for the bearing system and ensuring the normal working of "O" ring seals and increasing the working life of the drill bit;
7, the use of new low-wear grease, drill seal lubrication system to improve the ability of high temperature.
Description
Cautions
· Please select the applicable formation and parameters according to the instructions.
· Carefully check the bits appearance and to check the bits threaded end face,whether the serial number on the box and certificate.
· Selection of WOB and RPM should be within the limits of the recommended parameters, higher WOB and RPM cannot be used simultaneously.
· Bottom hole must be clean and bit must not be used for long section reaming.
· Drilling process must operate smoothly, find that there is Bie jump on abnormal phenomenon, should be timely analysis and take effective measures
· The bit should be kept indoor with dry and well ventilated conditions at 10-33℃ and kept from sunshine and rain. Stored under such conditions, quality of bit is guaranteed for 3 years.
Specifications
| Bit Diameter | IADC | Applications | Special Features(Cutting Structure,Lug Protection) | Weight | PIN Conn | Operating Suggestions WOB/RPM | |
| Ibs | KG | ||||||
| 7 7/8” 200mm | 412 | Very soft formations with low compressive strengths and high drillability. | Chisel on gage,conical on inner rows;Hardmetal on lug;Wear resistant carbide on shirttail lip and lug. | 75 | 34 | 4 1/2” API | 7,880-15,750Ibs/120-90RPM |
Feature Advantage
1. Price commitment: in order to ensure the high reliability of products, raw material selection are using grapefruit brand products; under the same competitive conditions, and not to reduce product technical performance on the basis of sincerity at a favorable price to customers.
2. Quality commitment: product manufacturing and testing have quality records and inspection data; the performance of the product can withstand customer inspection.
3. Customer service: in order to create new diamond brand, enhance the visibility of enterprises,establish corporate image, we serve customers with the principle of "preferential prices, good service, reliable product quality" principle.
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
1,000,000-40,000,000
Employee Number:
100~300
Ecer Certification：
Active Member
Hunan new diamond Construction Machinery Co., Ltd. is a professional engaged in the research and manufacture of drilling and pneumatic tools of modern high-tech enterprises。 The main research and manufacture of high air pressure DTH hammer, drill hole, drill pipe and drilling ... Hunan new diamond Construction Machinery Co., Ltd. is a professional engaged in the research and manufacture of drilling and pneumatic tools of modern high-tech enterprises。 The main research and manufacture of high air pressure DTH hammer, drill hole, drill pipe and drilling ...
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