The main structure of the wheeled excavator for sale consists of a working device, a cab, a slewing mechanism, a power unit, a transmission control mechanism, a chassis and auxiliary equipment. The cab, power unit and auxiliary equipment are all installed on a fully slewing platform, commonly known as the upper turntable. The tire chassis consists of a frame, a support, a gearbox, a hydraulic motor, a front and rear axle, a tire, etc., and is assembled with a slewing body. The working device is mainly composed of a boom, a bucket rod, a bucket, a connecting rod and other parts. The bucket has several forms according to its working mode, such as a front shovel, a backhoe, a drag shovel, and a grab shovel. The boom mainly has a gooseneck integral bending type and a hydraulically-acting split multi-section boom. The multi-section boom of the backhoe bucket is widely used in similar products abroad.