Oil well drilling rig mast K type JJ170
API Drilling rig mast JJ170 K type
Introduction of the drilling rig mast
A type mast:
The shape of A-mast section is rectangle or triangle, with better loading capacity and satbility, connected with pins
between sections,installed at low level and erected of lowered down intergrally by drawworks and A-frame.
K type mast:
The K type mast is the front opening mast, its transverse section is a II shape truss structure,its both side are built up of several pieces or segments,its back are rigid frame or pole system of truss, connected with pins or bolts between segments and members, may be installed at low lever and erected of lowered down integrally by drawwork or hydraulic cylinder, have the advantage of installation and teardown convenient and excellent rigidity.
Technical parameter of the Drilling rig mast
Model | JJ90/39-A | JJ170/41-A | JJ225/42-A | JJ315/43-A | JJ90/31-KS | JJ170/33-KS | JJ225/43-KS | |
Max static hook load,kN | 900 | 1700 | 2250 | 3150 | 900 | 1700 | 2250 | |
Clear height,m | 39 | 41 | 42 | 43 | 31 | 33 | 43 | |
Bottom span,m | 6.5 | 7.5 | 8 | 9 | 2.9 | 2.9 | ||
Height of monkey board,m | 24.5,25.5 26.5 | 24.5,25.5 26.5 | 24.11,25.21 26.31 | 22.1,23.5 25.5,26.5 | 17.5 | 16.5,17.5 | 25.5,26.5 | |
Setback capacity,m | 1680 | 2750 | 4000 | 4500 | 1500 | 3000 | 4000 | |
Wind loading | Under no working condition (fullstand, no load),m/s | 36 | 36 | 36 | 36 | 36 | 36 | 36 |
Under no working condition (nostand, no load),m/s | 47.8 | 47.8 | 47.8 | 47.8 | 47.8 | 47.8 | 47.8 | |
Raising & lowering mast, m/s | ≤8.3 | ≤8.3 | ≤8.3 | ≤8.3 | ≤8.3 | ≤8.3 | ≤8.3 | |
Weight,kg | 26592 | 34387 | 36321 | 37874 | 16627 | 26000 | 38000 | |
Note:A-A KS-K telescoping mast | ||||||||
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Oil well drilling rig mast K type JJ170
API Drilling rig mast JJ170 K type
