Kelly Bar Spring/Drilling Tools
| Price: |
US $ 200-213/Piece |
| Trade Terms: |
FOB,CFR,EXW |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T,Western Union |
We can offer many types of spring for kelly bar.
Type as below: 355/377/406/445/470/508/558
| Name of product | Externaldiameter(mm) | Pitch number | Length/section(m) | Rated torque(KN@M) | Depth(m) |
| Interlock kelly bar | 355 | 3 | 10–13 | 180 | 27–36 |
| 377 | 3\4 | 10–12.5 | 220 | 27–44 |
| 406 | 3\4 | 10–15 | 230 | 27–57 |
| 419 | 3\4 | 10–15 | 250 | 27–57 |
| 440 | 3\4 | 10–15 | 250 | 27–57 |
| 470 | 3\4 | 10–17 | 280 | 27–65 |
| 508 | 3\4 | 10–17 | 320 | 27–65 |
| 530 | 3\4 | 10–20 | 380 | 27–76 |
| 575 | 3\4 | 10–21 | 420 | 27–80 |
| 630 | 3\4 | 10–21 | 450 | 27–80 |
| Friction kelly bar | 355 | 4\5 | 10–13 | 180 | 36–60 |
| 377 | 4\5 | 10–14 | 200 | 36–65 |
| 406 | 4\5 | 10–15 | 210 | 36–70 |
| 419 | 4\5 | 10–15 | 250 | 36–70 |
| 440 | 4\5 | 10–15 | 250 | 36–70 |
| 470 | 4\5\6 | 10–17 | 280 | 36–95 |
| 508 | 4\5\6 | 10–18.5 | 320 | 36–103 |
| 530 | 4\5\6 | 10–19 | 380 | 36–106 |
| 575 | 4\5\6 | 10–21 | 420 | 36–120 |
| 630 | 4\5\6 | 10–21 | 450 | 36–120 |
| Prod Model: |
as your required |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Dimension: |
Can Offer Different Sizes |
About us
Founded in 2008, Beijing Dazheng Yongye Construction Machinery Co., Ltd is a National Hi-Tech enterprise mainly engaged in manufacture, international and domestic trade.
Dazheng yongye has managed OEM, sales of equipment, parts and electronic product, engineering design, technology consultant, general Export business and International Biddings or Engineering Projects. We uphold and respect the experiences and wisdom of manufacture and trading professionals. Complying with normative developing and manufacturing process, our products are in a leading position in China and we are developing ourselves to supply total solutions for our customers.
For many years, by giving play to its own advantages, Dazheng yongye has successfully achieved the transformation of development patterns from domestic purposes to international fields. Dazheng yongye takes cutter pick, mining pick, drill rod, drill auger as primary business, becoming the most competitive corporation specialized in Machinery System. For many years, our company uphold the purpose: The customer is the supreme, the faith management, due to provide the full range of services of internal and foreign trade to our customers, we establish a good international and domestic business channels, and win a good reputation. While developing the domestic and export business, our company actively explore new areas of business, the scope has expanded to the international export tender, which help us to establish a good foundation for the lasting development of our company.
