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该塔机参考了原华东建筑机械厂生产的G25(30吨米)塔机型式,全部重新计算,经过改进,提高起重能力。于79年3月通过局评议会,至7月开始小批量生产,经现场测试,基本达到设计要求。其改进部分: 1.全部结构及机电传动均按40吨—米的设计和改动。 2.变幅卷扬机减低绳速以利安全,电机改为全压直接起动,操作简便。
The tower crane refers to the type of G25 (30 ton-meter) tower crane produced by the original East China Construction Machinery Plant. It has all been recalculated and improved to improve the lifting capacity. In March of the same year, it passed the Council of the Council of the People’s Republic of China and began small batch production in July. After on-site testing, it basically met the design requirements. The improvements are as follows: 1. All structures and electromechanical drives are designed and modified in accordance with 40 tons-meter. 2. The luffing winch reduces the rope speed for safety, and the motor is changed to full pressure for direct start. It is easy to operate.