The engine vibration control engineering construction machinery construction machinery engine vibration method is sometimes unavoidable resonance, Langfang mini excavators, therefore, used to increase the system damping or dynamic vibration absorber to reduce vibration response. Dynamic Absorber belong pressing band control, using viscoelastic damping material has a high energy loss, used mini excavators, when the vibration damping material spread, most small excavators prices within the material tensile, bending, shear and other deformation, thereby consuming a large amount of vibration energy, the vibration damping. The main advantage of using vibration damping technology is not necessary to change the original structure, no additional auxiliary equipment, requires no external energy, take up less space efficient, small excavator manufacturers, it is a promising vibration and noise reduction measures. Loader pioneered this dynamic vibration damper in the selection, use of new technologies to achieve the desired effect of vibration and noise reduction. Conclusion As people improve the mechanical properties of engineering requirements, traditional vibration reduction technology can not meet the requirements, the introduction of new damping technology is imperative. In the future, to continue the application of modern design methods and tools, the use of advanced manufacturing technology to reduce or eliminate harmful engine excitation forces and moments generated during operation of the control and effective, reasonable cost of construction machinery engine damping system full play action to reduce the impact of construction machinery engine vibration performance and improve our products in the market competitiveness. Taian Jia and Heavy Machinery Co., Ltd. how fast replacement excavator boom cylinder seal? Heavy boom cylinder oil, its oil seal replacement done by conditions such as workshops, are able to complete in a short time, but in the wild, neither lifting equipment is single job is quite difficult . I summarize the method only one chain hoists, wire rope length ranging from 4, together with other related tools can be completed. Specific steps are: (1) First, excavator parked, will stick close in the end, lower the boom, bucket closing level fell to the ground. (2) The wire rope on the boom and a short wire rope at the upper end of the boom cylinder, hand pull hoist hooks on both ends of the rope hook, then tighten the chains. (3) Remove the pin movable boom cylinder rod head and remove the inlet and outlet pipe, the boom cylinder on the platform. (4) Remove the fixed retainer, card keys on the boom cylinder, stuffed with rubber strips in the slot, at the height of the boom cylinder flush arm arm and boom cylinder rod pin hole put appropriate rope, are connected with chain hoists, then tighten the chains, you can pull out the rod. (5) Replace the seal, and then in the reverse order of disassembly refitted. If three people collaboration, only about 10 minutes to complete.泰安嘉 and Heavy Machinery Co., Ltd. Langfang mini excavator mini excavator manufacturers _ _ Kerry and Heavy Industries (quality businessmen) are provided by 泰安嘉 and Heavy Machinery Co., Ltd ..泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) to provide "hydraulic excavators, loaders construction machinery, mining machinery, metallurgical machinery, oil machinery, Ring" and other services, the company has other "Stoker and" brand. Focus on the mining machinery industry in Shandong Tai'an higher visibility. Welcomes inquiries, contact: Xing Jingli.