Clamshell equipment – Liebherr HS 885 HD Litronic User Manual
Page 7
Clamshell equipment
71,700 lbs counterweight
Working diagram
C = Radius / dumping radius
J = Height of boom head sheave centre
above ground level
K = Length of clamshell (depending on type
and capacity of bucket)
HS 885 HD 7
С
С
С
С
С
Capacities in 1000 lbs for boom lengths (59 ft – 108 ft)
counterweight 71,700 lbs
59 ft
69 ft
79 ft
89 ft
98 ft
108 ft
C
J
C
J
C
J
C
J
C
J
C
J
α
ft
ft
lbs
ft
ft
lbs
ft
ft
lbs
ft
ft
lbs
ft
ft
lbs
ft
ft
lbs
65
31.5
60.7
66,1
35.8
69.6
62,2
40.0
78.4
52,9
43.9
87.2
45,8
48.2
96.1
39,9
52.4 105.3
35,1
60
36.0
58.0
61,3
41.0
66.6
51,1
45.9
75.1
43,7
50.8
83.7
37,5
55.8
92.2
32,4
60.7 101.0
28,2
55
40.7
55.4
52,5
46.3
63.6
43,6
51.8
71.5
37,0
57.4
79.7
31,5
63.0
87.6
27,3
68.9
96.1
23,6
50
44.6
52.1
46,1
50.8
59.7
38,1
57.0
67.3
32,2
63.6
74.8
27,3
69.9
82.3
23,4
76.1
90.2
20,0
45
48.2
48.9
41,2
55.4
55.8
34,2
62.3
62.7
28,7
69.2
69.9
24,0
76.1
76.8
20,5
83.0
82.7
17,4
40
51.8
44.9
37,5
59.4
51.5
30,2
66.9
57.7
25,1
74.4
64.0
21,2
82.0
70.2
17,6
89.6
76.8
17,8
35
55.1
41.0
33,1
63.0
46.6
26,7
71.2
52.1
22,3
79.1
58.7
18,7
87.2
63.6
15,6
95.5
69.6
13,2
30
57.7
36.7
29,3
66.3
41.7
24,0
74.8
46.6
19,8
83.3
51.5
16,7
91.8
56.4
13,9 100.4
61.3
11,5
25
60.0
32.1
26,2
68.9
36.0
21,4
78.0
40.4
17,6
86.9
44.6
14,8
95.8
48.6
12,1 104.7
53.1
9,9
Max. capacities in metric tons do not exceed 66.7 % of tipping load.
Load diagram restricted by safety factors of standard ropes:
Winches
44,100 lbs
55,200 lbs
66,200 lbs
Rope diameter
30 mm
34 mm
36 mm
Calc. breaking load
181,000 lbf
232,000 lbf
261,000 lbf
1–rope clamshell
36,400 lbs
46,300 lbs
51,800 lbs
2–rope clamshell
48,500 lbs
61,700 lbs
69,000 lbs