(ft) (ft)
22.0 25.0 28.0 31.0 34.0 37.0 40.0
(72′2″) (82′0″) (91′10″) (101′8″) (111′7″) (121′5″) (131′3″)
66.4 64.9 63.6 62.3 61.2 60.0 58.7
(146.3) (143) (140.2) (137.3) (134.9) (132.2) (129.4)
50.6 49.3 48.1 46.9 45.7 44.4 43.4
(111.5) (108.6) (106) (103.3) (100.7) (97.8) (95.6)
40.2 39.0 37.8 36.7 35.6 34.5 33.6
(88.6) (85.9) (83.3) (80.9) (78.4) (76) (74)
32.2 31.0 29.9 28.9 27.9 26.9 26.5
(70.9) (68.3) (65.9) (63.7) (61.5) (59.3) (58.4)
26.2 26.1 24.5 23.0 22.1 21.1 20.3
(57.7) (57.5) (54) (50.7) (48.7) (46.5) (44.7)
21.6 20.5 19.5 18.5 17.5 16.6 15.8
(47.6) (45.1) (42.9) (40.7) (38.5) (36.5) (34.8)
17.8 16.8 15.8 14.8 13.9 13.0 12.3
(39.2) (37) (34.8) (32.6) (30.6) (28.6) (27.1)
14.6 13.6 12.7 11.7 10.9 10.0 9.2
(32.1) (29.9) (27.9) (25.7) (24) (22) (20.2)
12.0 11.0 10.1 9.2 8.3 7.5 6.7
(26.4) (24.2) (22.2) (20.2) (18.2) (16.5) (14.7)
9.8 8.9 8.0 7.1 6.2 5.4
(21.6) (19.6) (17.6) (15.6) (13.6) (11.9)
7.9 6.9 6.0 5.2
(17.4) (15.2) (13.2) (11.4)
6.3
(13.8)
5555555
(98′5″)
(104′12″)
(111′7″)
(72′2″)
(78′9″)
22
(85′4″)
radius(m) (ft)
12
(59′1″)
(65′7″)
(98′5″)
(104′12″)
(111′7″)
(72′2″)
(78′9″)
(85′4″)
(91′10″)
(39′4″)
(45′11″)
(52′6″)
( not including Jib hook, counterweight (187.8+12.8)×1000lbs, angle between boom and jib 23°)
Unit：kg(lb)×1000
52.5
Length of jib(m) (ft)
16
18
12
14
(39′
4″)
(45′11″)
(52′6″)
radius(m) (ft)
(59′1″)
(65′7″)
2020
穿绳数Number of rope
22
16
18
Length of jib(m) (ft)
28
30
28
30
(91′10″)
32
34
32
34
24
26
24
26
穿绳数Number of rope
(172′3″)
Length of boom(m)
Load Charts of Boom Hook for LJ Operating condition
14
Length of boom(m)
4.6: 21/28
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