Q345B Q460D Super Long Reach Excavator , Practical Sany Long Boom Excavator

Zhonghe Factory custom Long Arm Boom Super Excavator Long Boom Amphibious Excavator Boom for Volvo/Cat/Liebher/Case/Sany

Introduce of dipper arm extension

Elongated arm is a group of excavator front-end working device specially designed and manufactured in order to expand the working range of excavator according to the requirements of working conditions. The connecting part strictly conforms to the connecting size of the original excavator in order to facilitate the installation and use of equipment materials: The big arm is made OF SHAOGANG Q355B, THE iron pipe on the arm is made of GB cold drawn seamless pipe, the pin shaft is made of 40Cr, the high pressure hose is made of joint venture pipe with 4 layers of steel wire ring, the butter pipe is red copper pipe, and the bushing of the big arm base is made of high force brass refined copper sleeve