Technique: First, to confirm the situation surrounding the swivel operation, around obstacles, terrain to be aware of used excavators, safe operation; the job, make sure the front and rear direction of the hand-made crawler excavators, 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. between the link, the arm cylinder and the arm each 90 degrees, the maximum digging force; bucket bucket teeth and the ground to maintain a 30 degree angle, the best cut in the soil digging force of least resistance; with arm excavation, should guarantee arm angle range between 30 degrees angle of 45 degrees from the front to the back, while using the boom and bucket, can improve mining efficiency. Our second-hand excavator used excavator is one of the most important economic development of production, the economy certainly commodity development. Used excavator model as saving capital to support the development of nation-building! Our second-hand excavator used excavator industry price table, in the late nineties has been the rapid development. Both for the country to save a lot of natural and human capital, but also for the country's economic construction has played an indelible role. There is also a growing sophistication in foreign machinery and equipment regeneration skills, English as 'reman', refers to second-hand machinery and parts perhaps through remanufacturing of waste reprocessing (part occurrence is standard new office product) was assembled machine merchandise, said is again making machinery. The skills in the country are increasingly muster. Used excavator pictures, Heilongjiang used excavator, used excavators Kim Ho Jin Hao from Shanghai Used Construction Machinery Co., Ltd .. 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!