Jining Donghong Machinery Co., Ltd
Quality supplier of drilling rig parts for Bomco,Lanzhou LS, Honghua, Sj petro, Rg Petro, Beijing BPM, Shenkai, Kingdream, CCDC
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JJ450/47-K Bootstrap Masts

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Issuing time:2018-04-20 15:35
ModelJJ450/47-K
Max static load rating kN4500
Working height m (ft)46.75 (153'-4 1/2")
Top span(Front x Side) m(in)2388x2667 (7'-10"x 8'-9")
Bottom Span m (ft)8.85(29'-1/2")
Height of monkey board m (ft)26.2(86')
26.5(87')
Capacity of monkev board m (ft)640021000

Wind load  

capacity

Under non-working condition (NMPH (no stand.no hook load)198(107)
Under non-working condition /NMPH (full stands.no hook load) 61(33)( full stands and hook load
(Raising & lowering mast) (NMPH)30(16)
Weight kg117361
Description & CodeOffshore bootstrap mast