Clamshell equipment – Liebherr HS 895 HD Litronic User Manual
Page 7
Clamshell equipment
121,500 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 895 HD 7
С
С
С
С
С
С
С
С
С
С
Capacities in 1000 lbs for boom lengths (84 ft – 181 ft)
counterweight 121,500 lbs
84 ft
104 ft
123 ft
142 ft
161 ft
181 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
45.9
81.0
71,7
54.1 98.8
71,7
62.0 115.8 65,0
70.2 133.5 54,0
78.1 150.6 46,1
86.6 168.3 38,8
60
52.2
77.7
71,7
62.0 94.8
65,5
71.5 110.9 53,6
81.3 127.9 44,1
90.6 144.0 37,3
100.4 161.1 30,9
55
58.1
73.8
71,4
69.6 89.9
56,0
80.4 105.3 44,8
91.5 121.4 37,0
102.4 136.8 30,6
113.5 152.9 25,1
50
64.0
69.6
63,1
76.4 84.6
48,9
88.6
99.1 39,5
101.0 114.2 31,7
113.2 128.3 26,0
126.0 143.3 20,8
45
69.2
64.6
56,7
83.0 78.7
43,7
96.1
91.9 35,1
110.2 106.0 27,8
123.4 119.1 22,7
137.1 132.9 18,1
40
73.8
59.7
51,6
88.9 72.2
39,5
103.3
84.3 31,5
118.4
96.8 24,7
132.5 108.9 19,8
147.6 121.7 15,6
35
78.1
54.1
47,8
94.2 65.3
36,4
109.6
77.7 28,7
125.7
87.3 22,5
141.1
98.1 17,8
157.2 109.3 13,7
30
81.7
48.2
44,5
98.8 58.1
33,7
114.8
67.3 26,5
131.9
77.1 20,5
148.3
86.6 16,3
165.4
96.5 12,1
25
85.0
42.0
41,4
102.7 50.2
31,1
119.8
58.1 24,0
137.5
66.3 18,5
154.5
74.1 14,8
172.2
82.7 10,6
Max. capacities in 1000 lbs do not exceed 66.7 % of tipping load.
Load diagram restricted by safety factors of standard ropes:
Winches
66,200 lbs
Rope diameter
36 mm
Calc. breaking load
260,550 lbf
1–rope clamshell
51,800 lbs
2–rope clamshell
69,000 lbs