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ZLM50型木材装载机是由哈尔滨林机所和常州林业机械厂设计试制的。该机的两台样机分别在黑龙江省东京城林业局三道河子林场及开封化肥厂、合肥燃料公司进行了500小时、720小时的山场原条装运、归楞,铲运砂石、装火车等多项生产试验,并做了牵引和超载20％、42％、48％的作业性能试验。试验证明该机的技术性能指标达到了设计要求,制造质量良好。
The ZLM50 timber loader was designed and manufactured by Harbin Linji and Changzhou Forestry Machinery Factory. The two prototypes of the aircraft were originally shipped at the Sandaohezi Forest Farm of the Tokyo City Forestry Bureau in Heilongjiang Province and the Kaifeng Chemical Fertilizer Plant and Hefei Fuel Company for 500 hours and 720 hours. Trains and other production trials were conducted, and a 20%, 42%, and 48% operational performance test was conducted for traction and overload. The test proves that the technical performance index of the machine has reached the design requirements and the manufacturing quality is good.