Komatsu origianl quality PC56 excavator boom arm
The boom is one structural product of box structure composed
of arm mounting base, cylinder mounting base, frame mounting
base, left and right side plates, upper and lower cover plates, and
anchorage plate and is mainly functioned to connect the arm and
support the digging and loading motions of the bucket. By the use
of reinforcement plate, the boom can be classified into standard
boom and reinforced boom.
The boom is one structural product of box structure composed
of arm mounting base, cylinder mounting base, frame mounting
base, left and right side plates, upper and lower cover plates, and
anchorage plate and is mainly functioned to connect the arm and
support the digging and loading motions of the bucket. By the use
of reinforcement plate, the boom can be classified into standard
boom and reinforced boom.
