1. 高起升高度(dù)和超大起升能力：STC120C4系列起重机可以达到50米左右的起升高度(dù)，起重能力可以达到120吨左右，适用于大型(xíng)项目和重量较大的物品起吊。2. 灵活多样的操作模式：起重机可通过无线遥控和操作室两种操作方式进行控制，提供了更多选择和便利性(xìng)。3. 优秀的安(ān)全性(xìng)能：STC120C4系列起重机配备了多重安(ān)全保护装置，包括起升过载保护、倾覆报警装置等，能够确保操作过程中的安(ān)全。4. 效率高和节能环(huán)保：起重机采用了先进的液压系统和动力匹配技术，确保了起升效率的提高，减少了能源消耗，更加环(huán)保。5. 可靠稳定的性(xìng)能：STC120C4系列起重机采用了先进的设计和生产工(gōng)艺，结构稳定，运行平稳，具有可靠性(xìng)和耐用性(xìng)。6. 优秀的适应性(xìng)和可靠性(xìng)：STC120C4系列起重机适用于各种工(gōng)况(kuàng)和作业场地，并且具备较高的适应性(xìng)和可靠性(xìng)。总之，三一重工(gōng)STC120C4系列起重机具有起重能力强大、操作灵活、安(ān)全可靠、节能环(huán)保等多方面的优点，适用于各种起重作业场合。

1. high lifting height and large lifting capacity: STC120C4 series cranes can reach a lifting height of about 50 meters and a lifting capacity of about 120 tons, which is suitable for lifting large projects and items with large weights. 2. flexible and diverse modes of operation: the cranes can be controlled by two modes of operation: wireless remote control and operation room, which provides more choices and convenience. 3. excellent Safety performance: STC120C4 series cranes are equipped with multiple safety protection devices, including hoisting overload protection, tipping alarm device, etc., which can ensure safety during operation.4. High efficiency and energy-saving and environmental protection: the cranes adopt advanced hydraulic system and power matching technology, which ensures the improvement of hoisting efficiency, reduces energy consumption and is more environmentally friendly.5. Reliable and stable performance: STC120C4 series cranes adopt advanced design and production process, stable structure, smooth operation, reliability and durability.6. Excellent adaptability and reliability: STC120C4 series cranes are suitable for a variety of working conditions and operating sites, and have high adaptability and reliability. In short, Sany Heavy Industry STC120C4 series cranes have the advantages of powerful lifting capacity, flexible operation, safety and reliability, energy saving and environmental protection, etc., and are suitable for a variety of lifting operations.