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由建设部长沙建筑机械研究所设计的 DE-20Y 型振动锤,于83年9月在浙江瑞安建筑机械厂试制成功。该机备有起吊、加压通用的弹簧隔振系统,具有良好的隔振效果。其偏心力矩可分级调节以适应不同的工作条作。
The DE-20Y vibratory hammer designed by the Changsha Construction Machinery Research Institute of the Ministry of Construction was trial-produced in Zhejiang Ruian Construction Machinery Factory in September 83. This machine is equipped with a spring-loaded, vibration-isolating system that provides excellent vibration isolation. Its eccentric moment can be adjusted to adapt to different working conditions.