Tianjin jinyiyuan Heavy Machinery Manufacturing Co., Ltd
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Rotary Casing
Introduction
Male and female joint casing, pile hole wall protection
Featurs
The joints are made of 25CrMo forgings, which are wear-resistant and not suitable for deformation. The pipe body is Q345B, bolt 42CrMo material, high strength, high torque resistance. The joint bolts are double-row holes. Longer and thicker joints, suitable for high torque drilling
Product parameters
| D1/D2(mm) | L(m) | a1(mm) | a2(mm) | a3(mm) | ||||
| 2m | 3m | 4m | 5m | 6m | ||||
| Weight(kg) | ||||||||
| 620/540 | 707 | 1017 | 1328 | 1638 | 1949 | 12 | 8 | 40 |
| 750/670 | 865 | 1245 | 1624 | 2004 | 2384 | 12 | 8 | 40 |
| 800/720 | 926 | 1332 | 1739 | 2146 | 2552 | 12 | 8 | 40 |
| 880/800 | 1022 | 1472 | 1921 | 2370 | 2819 | 12 | 8 | 40 |
| 900/820 | 1047 | 1507 | 1967 | 2427 | 2887 | 12 | 8 | 40 |
| 1000/920 | 1230 | 1780 | 2330 | 3025 | 3604 | 12 | 8 | 40 |
| 1180/1100 | 1590 | 2320 | 3060 | 3972 | 4753 | 16 | 8 | 40 |
| 1200/1120 | 1704 | 2487 | 3276 | 4061 | 4851 | 16 | 8 | 40 |
| 1300/1220 | 1750 | 2560 | 3380 | 4394 | 5245 | 16 | 8 | 40 |
| 1500/1400 | 2630 | 3820 | 5015 | 6492 | 7717 | 20 | 10 | 50 |
| 1800/1700 | 3394 | 4870 | 6347 | 7824 | 9301 | 20 | 10 | 50 |