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SPECIFICATIONS
30
Clamshell
Boom:
Welded lattice construction using tubular, high-tensile steel chords with pin connections between each section.
Basic boom length: 40 ft (12.2 m)
Max. boom length: 70 ft (21.3 m)
Limit on clamshell bucket weight: 4,600 lbs (2,100 kg)
Optional tagline: Hydraulic operated type and spring type.
Boom Component Chart:
Base = Boom Base
Insert:
A = 10 ft (3.05 m)
B = 20 ft (6.10 m)
C = 40 ft (12.2 m)
Tip = Boom Tip
1. Figures represent maximum allowable capacity, and assume level, ground and ideal working conditions.
2. Capacities are calculated at 66% of the minimum tipping loads.
3. Capacities are maximum recommended by PCSA Standard #4. Allowances must be made by the user for such unfavorable conditions as a sort of uneven
supporting surface, rapid cycle operations, or bucket.
4. The combined weight of the bucket and load must not exceed these capacities.
3 Counterweights (39,000 lbs) - Without Carbody weights - Crawlers in extended position.
Boom length ft (m)
Boom arrangement
40 (12.2)
Base-Tip
50 (15.2)
Base-A-Tip
60 (18.3)
Base-A-A-Tip, Base-B-Tip
70 (21.3)
Base-A-B-Tip
22.0
24.0
26.0
28.0
30.0
32.0
34.0
36.0
38.0
40.0
63.6
60.3
56.9
53.4
49.7
45.7
41.5
36.9
31.6
25.5
16,000 *
16
,000 *
16
,000 *
16
,000 *
16
,000 *
16
,000 *
16
,000
*
16
,000 *
16
,000
*
16
,000 *
Load
Radius
(ft)
Boom
Angle
(deg.)
360
ﾟ
Rated Load
(lbs)
40' Boom
26.0
28.0
30.0
32.0
34.0
36.0
38.0
40.0
42.0
44.0
46.0
48.0
64.2
61.6
58.9
56.2
53.3
50.4
47.3
44.1
40.6
36.9
32.8
28.2
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000 *
16
,000
*
16
,000 *
16
,000
*
16
,000 *
16
,000
*
15,400 *
Load
Radius
(ft)
Boom
Angle
(deg.)
360
ﾟ
Rated Load
(lbs)
50' Boom
30.0
32.0
34.0
36.0
38.0
40.0
42.0
44.0
46.0
48.0
50.0
52.0
54.0
56.0
58.0
64.5
62.4
60.2
58.0
55.7
53.3
50.9
48.3
45.7
42.9
40.0
36.9
33.5
29.8
25.6
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000
*
15,200 *
14,500
13,600
13,000
12,300
11,900
Load
Radius
(ft)
Boom
Angle
(deg.)
360
ﾟ
Rated Load
(lbs)
60' Boom
34.0
36.0
38.0
40.0
42.0
44.0
46.0
48.0
50.0
52.0
54.0
56.0
58.0
60.0
62.0
64.0
66.0
64.8
63.0
61.1
59.2
57.3
55.3
53.3
51.2
49.0
46.8
44.5
42.1
39.6
36.9
34.0
30.9
27.5
16
,000
*
16
,000
*
16
,000
*
16
,000
*
16
,000
*
15,800 *
15,600 *
15,200 *
14,300 *
13,600 *
13,000 *
12,300 *
11,600 *
11,200 *
10,800 *
10,100 *
9,700 *
Load
Radius
(ft)
Boom
Angle
(deg.)
360
ﾟ
Rated Load
(lbs)
70' Boom