Unique Piling |
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Q345B 35CrMo 50m Depth Drilling Kelly Bar For Casagrande Rotary Drilling Rig
1. Material: Q345B or 35CrMo
2.Type: Interlocking kelly bar, friction kelly bar, combined interlocking and friction kelly bar, square kelly bar etc customized as per requirement
3.Application: Suit for international CFA rigs as Bauer, Soilmec, Mait, Casagrande etc other brand piling rigs;
4.Customer Feedback: Applied on various drilling rigs and highly praised by domestic and abroad customers
Frictional kelly bar doesn't need to unlock the joint of its inner and outer lining so that it is convenient and fast to lift the bar. Non-stair key, friction transmission and the outside key are made by highly wear-resisting tempering steel. Friction Kelly Bar is applicable for layer of soft ground and mud, (mud) sand, gravel.
Interlocking kelly bar is of great pressure transmission and good anti-contortion perfomance. There are 3 rigid parts between drilling pipes to transfer greater pressure from embedding cylinder. And even at the hard geologic condition, it can transfer greater pressure and drill in. Stair key, organization transmission, the outside key are made by highly wear-resisting tempering steel. Interlocking Kelly Bar is applicable for soft fromations, (weak) weathered rock, hard strata construction.
Standard Interlocking Kelly Bar:
Identification No. | Torque(ton.m) | O.D.(mm) | sections | Drilling Depth(m) |
IK 36/470/3/27~28 | 36 | 470 | 3 | 27~28 |
IK 36/470/4/36~72 | 36 | 470 | 4 | 36~72 |
IK 25/440/3/36 | 25 | 440 | 3 | 36 |
IK 25/440/4/50 | 25 | 440 | 4 | 50 |
IK 28/394/3/24~48 | 28 | 394 | 3 | 24~48 |
IK 28/394/4/32~65 | 28 | 394 | 4 | 32~65 |
IK 18/377/3/36 | 18 | 377 | 3 | 36 |
IK 18/377/4/50 | 18 | 377 | 4 | 50 |
IK 22/406//3/36 | 22 | 406 | 3 | 36 |
IK 22/406/4/50 | 22 | 406 | 4 | 50 |
IK 36/508/4/60 | 36 | 508 | 4 | 60 |
* Other sizes can be manufactured as per customer demand |
Standard Friction Kelly Bar:
Identification No. | Torque(ton.m) | O.D.(mm) | sections | Drilling Depth(m) |
FK 36/470/3/27~28 | 36 | 470 | 3 | 27~28 |
FK 36/470/4/36~72 | 36 | 470 | 4 | 36~72 |
FK 25/440/3/36 | 25 | 440 | 3 | 36 |
FK 25/440/4/50 | 25 | 440 | 4 | 50 |
FK 25/440/5/65 | 25 | 440 | 5 | 65 |
FK 28/394/3/24~48 | 28 | 394 | 3 | 24~48 |
FK 28/394/4/32~65 | 28 | 394 | 4 | 32~65 |
FK 18/377/3/36 | 18 | 377 | 3 | 36 |
FK 18/377/4/50 | 18 | 377 | 4 | 50 |
FK 22/406//3/36 | 22 | 406 | 3 | 36 |
FK 22/406/4/50 | 22 | 406 | 4 | 50 |
FK 36/508/4/60 | 36 | 508 | 4 | 60 |
FK 36/508/5/75 | 36 | 508 | 5 | 75 |
* Other sizes can be manufactured as per customer demand |