The long arm of excavator is more common in many construction projects, because there are some engineering requirements are more stringent, such as subway engineering, foundation excavation requirements of equipment should be suitable for the geological environment and the surrounding environment at that time. Therefore, the selection of the length of the extension arm should be carefully studied by the operator. What are the requirements for the use of so many types of extension arms? What are their respective technical parameters? Next, we sorted out the most comprehensive excavator boom model for your reference!

　　一、13.5米加长臂参数：工作重量为3.3吨，斗容0.3方，挖掘高度11米，外伸挖掘范围12.米，挖掘深度9.0米，全高：3米。

　　1、 Parameters of 13.5m long boom: working weight: 3.3t, bucket capacity: 0.3m3, maximum excavation height: 11m, maximum extended excavation range: 12. M, maximum excavation depth: 9.0m, full height: 3M.

　　二、15.4米加长臂参数：工作重量为4.5吨，斗容为0.4方，挖掘高度12米，外伸挖掘范围为15.1米，挖掘深度11.34米，全高：3米。

　　2、 Parameters of 15.4m long boom: working weight is 4.5t, bucket capacity is 0.4m3, maximum excavation height is 12M, maximum extended excavation range is 15.1m, maximum excavation depth is 11.34m, full height: 3M.

　　三、18.5米加长臂参数：工作重量为5.5吨，斗容0.45方，挖掘高度13米，外伸挖掘范围17米，挖掘深度13米，全高：3.5米。

　　3、 Parameters of 18.5M long boom: working weight: 5.5t, bucket capacity: 0.45m3, maximum excavation height: 13m, maximum extended excavation range: 17m, maximum excavation depth: 13m, full height: 3.5m.

　　四、20.5米加长臂参数：工作重量为6.5吨，斗容0.55方，挖掘高度14米，外伸挖掘范围19米，挖掘深度15.0米，全高：3.5米。

　　4、 Parameters of 20.5M long boom: working weight: 6.5T, bucket capacity: 0.55m3, maximum excavation height: 14m, maximum extended excavation range: 19m, maximum excavation depth: 15.0m, full height: 3.5m.

　　五、22.5米加长臂参数：工作重量6.8吨，斗容0.65方，挖掘高度16.米，外伸挖掘范围21米，挖掘深度16.5米，全高：3.5米。

　　5、 Parameters of 22.5m long boom: working weight: 6.8t, bucket capacity: 0.65m3, maximum excavation height: 16. M, maximum extended excavation range: 21m, maximum excavation depth: 16.5m, full height: 3.5m.

　　六、24.5米加长臂参数：工作重量8吨，斗容0.65方，挖掘高度17米，外伸挖掘范围23米，挖掘深度18.0米，全高：3.5米。

　　6、 Parameters of 24.5m long boom: working weight: 8t, bucket capacity: 0.65m3, maximum excavation height: 17m, maximum extended excavation range: 23m, maximum excavation depth: 18.0m, full height: 3.5m.

　　七、26.5米加长臂参数：工作重量为8.2吨，斗容0.55方，挖掘高度18米，外伸挖掘范围25米，挖掘深度为20.0米，全高：3.5米。

　　7、 Parameters of 26.5m long boom: working weight: 8.2t, bucket capacity: 0.55m3, maximum excavation height: 18m, maximum extended excavation range: 25m, maximum excavation depth: 20.0m, full height: 3.5m.

　　关于挖掘机加长臂型号的总结

　　A summary of the type of the extension arm of the excavator

　　挖掘机加长臂是根据特定的工况需求而加长的，一般比原厂挖掘机标准臂长很多，其中两段式加长臂适用于较深的建筑基础、河道、深沟、深坑等较大范围的挖掘作业，三段式加长臂一般适用于高层建筑楼体的拆解等作业。

　　The extension arm of the excavator is lengthened according to the specific working conditions, generally much longer than the standard arm of the original excavator. The two-stage extension arm is suitable for the excavation of deep building foundation, river, deep ditch, deep pit and other large-scale operations, and the three-stage extension arm is generally suitable for the demolition of high-rise buildings.

　　现代挖掘机制造工艺的特点是进行严格的工艺管理和质量控制，加工要严格按工艺规程进行，执行首件必检，批量抽检。

　　The manufacturing process of modern excavator is characterized by strict process management and quality control. The processing shall be carried out in strict accordance with the process procedures, the first piece must be inspected, and the batch sampling inspection shall be carried out.

　　这些都是常见的挖掘机加长臂型号，如果您有特殊的要求，可以根据您的要求进行定制，更多信息欢迎访问我们的网站。

　　These are common models of long arm excavator. If you have special requirements, you can customize them according to your requirements. For more information, please visit our website.