Customization: | Available |
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Customized: | Customized |
Standard: | API |
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IADC
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WOB(KN/mm Bit Dia.)
|
RPM(r/min)
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Applicable Formations
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435
515 |
0.20~0.70
|
200~80
|
Soft with very low compressive strength such as shale ,clay, sandstone ,soft limestone ,etc
|
535
|
0.35~0.80
|
200~80
|
Medium soft with low compressive strength and harder abrasive stringers ,such as hard shale ,hared gypsolyte, soft limestone,
sandstone and dolomite with stringer ,etc |
417
437 |
0.35~0.90
|
140~70
|
Very soft with low compressive strength and high drillability, such as shale, clay, sandstone and conglomerate ,etc.
|
517
527 |
0.35~1.05
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120~50
|
Soft with low compressive strength, such as shale, clay, sandstone, soft limestone, salt bed and hard gypsolyte, etc
|
537
547 |
0.35~1.05
|
110~40
|
Medium soft with low compressive strength and harder abrasive stringers, such as hard shale, hard gypsolyte, soft limestone,
sandstone and dolomite with stringers ,etc |
617
627 |
0.35~1.05
|
80~40
|
Medium hard with high compressive strength and thick &hard stringers, such as hard shale, limestone, sandstone and dolomite, etc
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637
737 |
0.70~1.20
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70~40
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Medium hard with high compressive strength and high abrasiveness ,such as limestone ,dolomite, sandstone and chert ,etc
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Note: The upper limits of WOB and RPM in above table should not be used simultaneously
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Company Competitive Power:
1. At Hejian Tianrun Machinery Co., Ltd., we boast the industry's most professional and seasoned senior engineers, providing unmatched expertise in this field.
These experts ensure that our products are of the highest quality, guaranteeing reliability and excellence.
2.MANUFACTURER Our strategic position enables us to offer highly competitive pricing, delivering exceptional value to our customers.
3. Our team of dedicated and sincere sales professionals form the cornerstone of our business, fostering trust and long-lasting relationships.
4. We offer a wide range of sizes and dimensions to meet the diverse needs of our clients, ensuring the perfect fit for every application.
5. With a substantial stock of bulk inventory, we ensure rapid delivery times, meeting your urgent demands with speed and efficiency.
6. Our commitment to excellence extends beyond the sale, as we provide the best after-sales service, ensuring customer satisfaction and support.
We warmly invite you to inquire about our offerings and visit our state-of-the-art factory, where innovation meets craftsmanship.