展出设备中最吸睛的是一台银黑配色、机身科技感十足的挖机。"这是自主研发的全电无人概念挖掘 机，可适用于矿山开采、抢险救援等多维场景，较传统模式综合效率提升40%以上。"三一重机小挖研 究院软件工程师王兆琪说，这台挖机还解决了沙漠无人区作业可能，"中东、非洲商客很感兴趣"。 当前，工程机械行业电动化趋势日益凸显。本届展会亮相的2万余件(套)展品中，重型机械绿色化展品 达75%，远超上届。 中新社长沙5月17日电 1806家中外企业参展的第四届长沙国际工程机械展览会正在火热举行。全球50强 工程机械品牌三一集团展出的设备，电动化和新能源产品占比达43%。 携工程机械领域电动化场景解决方案参展的深圳市汇川技术股份有限公司每年研发投入占比超 15%。"我们通过技术创新助客户解决电动化进程中的痛点。研发的新一代高压大功率高速电机和高压 多合一集成控制器，已能满足工程机械在矿山、港口等环境需求。"汇川技术智慧工程机械总裁陶劲 说。 电动化为中国工程机械行业注入新竞争活力和技术动力的同时，在技术升级、后市场能力、电动产业标 准体系等方面也面临挑战。"比如，挖机因作业环境复杂多变，普遍面临电池续航能力不足与配套充电 设施匮乏 ...

Group 1 - The fourth Changsha International Construction Machinery Exhibition has commenced, showcasing significant innovations in the industry [3][4] - A notable highlight is the world's largest 4000-ton all-terrain crane, which has attracted attention from global influencers and industry professionals [4] - Influencer Muhammad, with nearly 500,000 followers, expressed excitement about the advanced machinery and technology presented at the exhibition [3] Group 2 - Muhammad's friend, Otabek, is a representative from a construction machinery import-export company in Uzbekistan, planning to purchase 30 cranes from Changsha manufacturers [4] - The exhibition features cutting-edge products, including the world's first fully electric unmanned concept excavator and a dancing loader, showcasing the industry's technological advancements [4] - The event is expected to strengthen business ties between local manufacturers like SANY and Zoomlion and international clients [4]