Rock excavation work: Use bucket digging rocks would cause greater damage to the machine, shall be avoided; used mini excavator market, should be based on the direction of the rock to crack adjust the body's position must dig, shovel into the bucket smoothly, mining; the bucket teeth inserted in rock crevices, mining (bucket should carefully slip teeth) with arm and bucket digging force;. not broken rock, should be broken and then use a flat slope excavation bucket Assignment: a planar trimmed flat on the ground when the machine, preventing the body shaking, motor coordination to grasp the boom and arm, and controls the speed of both is essential for the plane finishing technique: first to confirm the surrounding conditions. When the rotary operation used mini digger much money around obstacles, terrain to be aware of safe operation; the job, make sure the front and rear direction of the track, to avoid tipping or impact; try not to make the final drive face excavation direction, or easy to damage the travel motors or hoses; the job, to ensure full contact with the ground left and right track to improve the stability of the whole dynamic of effective mining methods: When the bucket cylinder and linkage, the arm cylinder and bucket strokes. between each 90 degrees used mini excavator, digging force maximum; Bucket teeth and ground while maintaining a 30 degree angle to sell second-hand mini excavator, digging force and cut the best soil of least resistance; with arm excavation, should ensure arm angle in the range between 30 degrees angle of 45 degrees from the front to the back, while using the boom and bucket, can improve mining efficiency. Yuchai Used Mini excavator Used Mini excavators _ _ Sichuan used excavators sold by Shanghai Jin Hao Kim Ho Used Construction Machinery Limited. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) strong, credible, in Shanghai Minhang District of mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead jinhao used excavators into the brilliant and you work for a better future!