Mast: Max. static rating: 1700,2250,3150,4500,5850(kN) Working height:41 (135),43m(141),45(147 )(m,ft)
K-mast
l Open-face masts
l Raising mode: integral and bootstrap
l Masts are installed at ground level and divide into sections. Sections are connected with each other of by means of double pins to ensure connection integrity
l Mast stems are of beam structure for easy of assembly/disassembly and transportation.
l Two hydraulic cylinders (left & right) are provided to be used as snubber when raising masts and as primary push-pull force when lowering masts
l Masts’ space and height meet the need of installing top drive
l Mast conform to API spec. 4F. and are applied API monogram on them
Main parameters:
Model No. | JJ170/41 K | JJ225/43K | JJ315/45K | JJ450/45K | JJ585/45-K | |
Max. static rating (kN) | 1700 | 2250 | 3150 | 4500 | 5850 | |
Working height(m,ft) | 41 (135) | 43m(141) | 45(147 ) | 45(147) | 45(147) | |
Height of monkey board (m) | 24.5/25.5/26.5 | 24.5/25.5/26.5 | 24.5/25.5/26.5 | 24.5/25.5/26.5 | 24.5/25.5/26.5 | |
Capacity of monkey board(m) | 3000 | 4000 | 5000 | 7000 | 9200 | |
Wind load capacity | Under nonworking condition (no stand, no hook load) | 172 km/h(93 nmph) | 172 km/h(93 nmph) | 172 km/h(93 nmph) | 172 km/h(93 nmph) | 172 km/h(93 nmph) |
Under nonworking condition (full stands, no hook load) | 130 km/h(70 nmph) | 130 km/h(70 nmph) | 130 km/h(70 nmph) | 130 km/h(70 nmph) | 130 km/h(70 nmph) | |
Raising & lowering mast | 30 km/h(16 nmph) | 30 km/h(16 nmph) | 30 km/h(16 nmph) | 30 km/h(16 nmph) | 30 km/h(16 nmph) | |
Mast
