Clamshell Buckets
MATERIAL MOVING MONSTERS OF ALL SIZES IMAGINABLE
Rotobec Clamshell Buckets set the industry benchmark for strength and durability. Our line of clamshells ranges in size from 1.5 yd3 all the way up to a whopping 14 yd3 capacity. Within our lineup, we offer a variety of different series including: Light duty, standard duty and heavy duty, each of which has been designed to provide the maximum level of performance based on the type of material being handled. When it comes to clamshell buckets, there is simply no other manufacturer capable of matching the toughness and versatility of a Rotobec.
quad-cylinder design for optimal PERFORMANCE
Our Clamshell Buckets come equipped with four Rotobec cylinders, each rated at 5,000 psi. The quad-cylinder design ensures the optimal force distribution on each corner of your bucket providing maximum loads each and every time.
Double the life of your bucket
BOLT-ON CUTTING EDGES
Our Clamshells are available with reversible bolt-on cutting edges, which literally doubles the life of your bucket’s edge. We also offer models with a level cut design for dredging application.
The king of rotators
WE’RE CALLED ROTO-BEC FOR A REASON
For the last 40 years, Rotobec has been pushing the boundaries of innovation in the world of rotator design. The rotators on our Clamshell Buckets are no exception. In addition to standard 3600 rotation and a fully supported pinion gear, all of our rotations are fully sealed, allowing them to be fully submersed in water up to 15 feet deep.
Series Light Duty (2 cylinder) Clamshell Bucket CSB 50
Technical Data
Height (open/excluding rotation)
25 in
Capacity SAE rated heaped
0.5 y3
Deck Area
15 ft2
Weight (excluding rotation)
1,150 lb
Length
32 in
Open
69 in
Series Light Duty (2 cylinder) Clamshell Bucket CSB 75
Technical Data
Height (open/excluding rotation)
26 in
Capacity SAE rated heaped
0.75 y3
Deck Area
20.5 ft2
Weight (excluding rotation)
1,355 lb
Length
41 in
Open
72 in
Series Light Duty (2 cylinder) Clamshell Bucket CSB 100
Technical Data
Height (open/excluding rotation)
26 in
Capacity SAE rated heaped
1.0 y3
Deck Area
22.25 ft2
Weight (excluding rotation)
1,566 lb
Length
41 in
Open
79 in
Series Light Duty (4 cylinder) Clamshell Bucket CSB 700
Technical Data
Height (open/excluding rotation)
61 in
Capacity SAE rated heaped
7 y3
Deck Area
83.06 ft2
Weight (excluding rotation)
7,969 lb
Length
92 in
Open
130 in
Series Light Duty (4 cylinder) Clamshell Bucket CSB 800
Technical Data
Height (open/excluding rotation)
64 in
Capacity SAE rated heaped
8 y3
Deck Area
90.72 ft2
Weight (excluding rotation)
7,950 lb
Length
92 in
Open
142 in
Series Light Duty (4 cylinder) Clamshell Bucket CSB 900
Technical Data
Height (open/excluding rotation)
63 in
Capacity SAE rated heaped
9 y3
Deck Area
93.92 ft2
Weight (excluding rotation)
7,930 lb
Length
92 in
Open
147 in
Series Light Duty (4 cylinder) Clamshell Bucket CSB 1000
Technical Data
Height (open/excluding rotation)
66 in
Capacity SAE rated heaped
10 y3
Deck Area
108.75 ft2
Weight (excluding rotation)
8,607 lb
Length
108 in
Open
145 in
Series Light Duty (4 cylinder) Clamshell Bucket CSB 1200
Technical Data
Height (open/excluding rotation)
68 in
Capacity SAE rated heaped
11 y3
Deck Area
118.50 ft2
Weight (excluding rotation)
9,284 lb
Length
108 in
Open
158 in
Series Light Duty (4 cylinder) Clamshell Bucket CSB 1400
Technical Data
Height (open/excluding rotation)
125.25 in
Capacity SAE rated heaped
14 y3
Deck Area
126.50 ft2
Weight (excluding rotation)
11,315 lb
Length
108 in
Open
168 in
Series Standard Duty Clamshell Bucket CSB 150
Technical Data
Height (open/excluding rotation)
49 in
Capacity SAE rated heaped
1.5 y3
Deck Area
33.75 ft2
Weight (excluding rotation)
3,555 lb
Length
62 in
Open
78 in
Weight bolt-on cutting edge
200 lb
Series Standard Duty Clamshell Bucket CSB 200
Technical Data
Height (open/excluding rotation)
50 in
Capacity SAE rated heaped
2.0 y3
Deck Area
38.25 ft2
Weight (excluding rotation)
3,892 lb
Length
62 in
Open
89 in
Weight bolt-on cutting edge
200 lb
Series Standard Duty Clamshell Bucket CSB 250
Technical Data
Height (open/excluding rotation)
51 in
Capacity SAE rated heaped
2.5 y3
Deck Area
42.63 ft2
Weight (excluding rotation)
4,108 lb
Length
62 in
Open
99 in
Weight bolt-on cutting edge
200 lb
Series Standard Duty Clamshell Bucket CSB 300
Technical Data
Height (open/excluding rotation)
55 in
Capacity SAE rated heaped
3.0 y3
Deck Area
50.38 ft2
Weight (excluding rotation)
4,939 lb
Length
75.38 in
Open
97 in
Weight bolt-on cutting edge
250 lb
Series Standard Duty Clamshell Bucket CSB 350
Technical Data
Height (open/excluding rotation)
55 in
Capacity SAE rated heaped
3.5 y3
Deck Area
86.75 ft2
Weight (excluding rotation)
5,284 lb
Length
75.38 in
Open
104 in
Weight bolt-on cutting edge
250 lb
Series Standard Duty Clamshell Bucket CSB 400
Technical Data
Height (open/excluding rotation)
56 in
Capacity SAE rated heaped
4.0 y3
Deck Area
58 ft2
Weight (excluding rotation)
5,400 lb
Length
75.38 in
Open
111 in
Weight bolt-on cutting edge
250 lb
Series Standard Duty Clamshell Bucket CSB 450
Technical Data
Height (open/excluding rotation)
59 in
Capacity SAE rated heaped
4.5 y3
Deck Area
62.86 ft2
Weight (excluding rotation)
6,635 lb
Length
81 in
Open
112 in
Weight bolt-on cutting edge
350 lb
Series Standard Duty Clamshell Bucket CSB 500
Technical Data
Height (open/excluding rotation)
61 in
Capacity SAE rated heaped
5 y3
Deck Area
65.63 ft2
Weight (excluding rotation)
6,607 lb
Length
81 in
Open
117 in
Weight bolt-on cutting edge
350 lb
Series Standard Duty Clamshell Bucket CSB 600
Technical Data
Height (open/excluding rotation)
61 in
Capacity SAE rated heaped
6 y3
Deck Area
73 ft2
Weight (excluding rotation)
7,000 lb
Length
81 in
Open
130 in
Weight bolt-on cutting edge
350 lb
Series Standard Duty Clamshell Bucket CSB 700
Technical Data
Height (open/excluding rotation)
64 in
Capacity SAE rated heaped
7 y3
Deck Area
80.94 ft2
Weight (excluding rotation)
8,865 lb
Length
93 in
Open
126 in
Weight bolt-on cutting edge
570 lb
Series Standard Duty Clamshell Bucket CSB 800
Technical Data
Height (open/excluding rotation)
66 in
Capacity SAE rated heaped
8 y3
Deck Area
89.77 ft2
Weight (excluding rotation)
8,900 lb
Length
93 in
Open
139 in
Weight bolt-on cutting edge
570 lb
Series Standard Duty Clamshell Bucket CSB 900
Technical Data
Height (open/excluding rotation)
66 in
Capacity SAE rated heaped
9 y3
Deck Area
94.29 ft2
Weight (excluding rotation)
8,934 lb
Length
93 in
Open
146 in
Weight bolt-on cutting edge
570 lb
Series Heavy Duty Clamshell Bucket CSB 150HD
Technical Data
Height (open/excluding rotation)
50 in
Capacity SAE rated heaped
1.5 y3
Deck Area
34 ft2
Weight (excluding rotation)
4,505 lb
Length
62 in
Open
80 in
Series Heavy Duty Clamshell Bucket CSB 200HD
Technical Data
Height (open/excluding rotation)
53.13 in
Capacity SAE rated heaped
2 y3
Deck Area
37.25 ft2
Weight (excluding rotation)
4,850 lb
Length
62 in
Open
87.75 in
Series Heavy Duty Clamshell Bucket CSB 300HD
Technical Data
Height (open/excluding rotation)
55.38 in
Capacity SAE rated heaped
3 y3
Deck Area
49 ft2
Weight (excluding rotation)
5,950 lb
Length
75 in
Open
94.5 in
Series Heavy Duty Clamshell Bucket CSB 350HD
Technical Data
Height (open/excluding rotation)
59 in
Capacity SAE rated heaped
3.5 y3
Deck Area
53.65 ft2
Weight (excluding rotation)
6,447 lb
Length
75 in
Open
103 in
Series Heavy Duty Clamshell Bucket CSB 400HD
Technical Data
Height (open/excluding rotation)
59 in
Capacity SAE rated heaped
4 y3
Deck Area
57.84 ft2
Weight (excluding rotation)
6,655 lb
Length
75 in
Open
110.5 in
Series Heavy Duty Clamshell Bucket CSB 450HD
Technical Data
Height (open/excluding rotation)
62 in
Capacity SAE rated heaped
4.5 y3
Deck Area
63.56 ft2
Weight (excluding rotation)
8,066 lb
Length
81 in
Open
113 in
Series Heavy Duty Clamshell Bucket CSB 500HD
Technical Data
Height (open/excluding rotation)
64 in
Capacity SAE rated heaped
5 y3
Deck Area
67.5 ft2
Weight (excluding rotation)
8,373 lb
Length
81 in
Open
120 in
Series Heavy Duty Clamshell Bucket CSB 600HD
Technical Data
Height (open/excluding rotation)
65 in
Capacity SAE rated heaped
6 y3
Deck Area
74.25 ft2
Weight (excluding rotation)
8,691 lb
Length
81 in
Open
132 in
Series Heavy Duty Clamshell Bucket CSB 700HD
Technical Data
Height (open/excluding rotation)
77 in
Capacity SAE rated heaped
7 y3
Deck Area
88.40 ft2
Weight (excluding rotation)
9,500 lb
Length
95 in
Open
134 in
Series Heavy Duty Clamshell Bucket CSB 800HD
Technical Data
Height (open/excluding rotation)
78 in
Capacity SAE rated heaped
8 y3
Deck Area
93.68 ft2
Weight (excluding rotation)
10,310 lb
Length
95 in
Open
142 in
Series Heavy Duty Clamshell Bucket CSB 900HD
Technical Data
Height (open/excluding rotation)
79 in
Capacity SAE rated heaped
9 y3
Deck Area
98.30 ft2
Weight (excluding rotation)
11,119 lb
Length
95 in
Open
149 in
The cylinders of our Clamshell Buckets are 100% designed, manufactured and assembled in-house. This allows us to guarantee that each cylinder meets the quality standards you deserve. Our cylinders are rated at 5,000 PSI ensuring that you have all the closing force you could ever need.
Our Clamshells are available with reversible BOLT-ON CUTTING EDGES, which literally doubles the life of your bucket’s edge. We also offer models with a LEVEL CUT DESIGN for dredging applications.
Where other manufacturers only use a high-tensile steel in small sections of the bucket, our Clamshell Buckets are fabricated almost entirely of HIGH-TENSILE STEEL, which will significantly extend the life of your bucket.
QUALITY COMPONENTS
In order to guarantee the quality and reliability of your material handling equipment, we proudly manufacture and assemble every major component of our grapples in-house, right here in North America. Each component is constructed of only the best quality materials available, and is built with one purpose: To outperform and outlast the competition.
SERVICE MADE SIMPLE
Our number one priority is your productivity. Machine downtime is a costly inconvenience and we have taken every measure to ensure that our customers experience as little of this as possible. Our expert team of service technicians are conveniently located all across North America and are dedicated to providing our customers with the best service in the business.
CUSTOMER: JVM Russia
LOCATION: Vladivostok, Russia
PRODUCT: CSB650 Clamshell Bucket
CHALLENGE
Customer needed a Clamshell Bucket to handle coal anthracite in Russia throughout both summer and winter time, in high humidity. They also wanted to reduce downtime, with the amount of time they spent greasing their attachment.
CUSTOM SOLUTION
Rotobec improved their CSB650 to minimize maintenance time; this improvement automatically greases the attachment, simply using the motion of the bucket to do so. The attachment structure was also modified to adapt the jaw of the CSB400HD onto the CSB650 head. These custom jaws are equipped with bucket teeth, allowing better penetration in frozen coal and less stress on the grapple structure.