1. Material: the material of the big
and small arms is Shaogang q**5b, the iron pipe on the arm is
national standard cold drawn seamless pipe, the pin shaft is *0Cr,
the high-pressure hose is a joint-venture pipe with 4 layers of
steel rings, the grease pipe is a single-layer hose, and the
bushing driven into the base of the boom is graphite alloy copper
sleeve.
2. Configuration: one set of big and
small arms, six-pin shafts, four high-pressure hoses, three grease
pipes, one set of connecting rod assembly, one bucket cylinder and
one bucket.
3. Product advantages: plasma
cutting, machine milling, robot welding, boring after welding,
assembly line production operation, and better quality assurance.
It can be customized according to the working conditions to meet
the construction needs of different users. The opening angle of the
large and small arms can reach **3 degrees, and the excavation
radius and height are larger.
4. Working conditions applicable to
the lengthening arm: Municipal Engineering, subway construction,
river dredging, reservoir cleaning, and other water conservancy
projects.