而标准的挖掘机械又完成不了特殊化的工程作业，
And standard excavation machinery can not complete specialized engineering operations,
所以此时华体会国际 利用超长型动臂和超长型斗杆来大展神威。
Therefore, at this time, the extended boom excavator uses the super long boom and super long stick to show its great power.
可在疏浚、护岸、坡面以及地铁建设等受地面环境限制的工况下，发挥巨大的威力。
It can exert great power under the conditions limited by the ground environment, such as dredging, revetment, slope and subway construction.
一般常见的有以下几个应用领域
The following application fields are common
1.两段式加长臂
1. Two section lengthening arm
使用范围相对较大，但是两段式加长臂的主要功能，也是为了提升挖掘半径，在清理河道，填海造地，地铁出入口开挖，人行地底隧道，还有高速公路防护墙修整，一般住宅输送一下水泥等等。
The scope of use is relatively large, but the main function of the two-stage lengthening arm is also to improve the excavation radius, such as river cleaning, land reclamation, subway entrance and exit excavation, pedestrian underground tunnel, expressway protective wall repair, general residential transportation of cement, etc.
也有人用他前置破碎锤作用于房屋拆迁的，不过比较危险。
Some people also use his front breaking hammer to act on house demolition, but it is more dangerous.
两段式加长臂一般10-26米区间改装比较多。
The two-stage lengthening arm is generally refitted in the interval of 10-26m.
2.三段式加长臂
2. Three section lengthening arm
或者多段式加长臂，主要应用于高层建筑的拆迁，前置破碎锤或者液压钳。
Or multi-stage lengthening arm, which is mainly used for demolition of high-rise buildings, front crushing hammer or hydraulic tong.
20-28米内使用者比较多。
There are many users within 20-28 meters.
3.滑臂或者内伸缩臂
3. Sliding arm or inner telescopic arm
主要为了回转半径很小，但是挖掘深度要求很高的工况设计，一般会前置贝壳挖斗（贝形斗）。
It is mainly designed for working conditions with small turning radius but high excavation depth requirements. Generally, the shell bucket (shell bucket) will be preceded.
滑臂垂直挖掘深度一般为10米，内伸缩臂垂直挖掘深度一般在26米以内。
The maximum vertical excavation depth of the sliding arm is generally 10m, and the vertical excavation depth of the inner telescopic arm is generally within 26m.
4.打桩机加长臂
4. Lengthening arm of pile driver
大小臂平直，前置弯臂2.6米左右（主要是为了与振动锤连接方便阀块和管路的安装）及震动锤，应用于修建公路铁路或者埋设管道的时候打拔钢板桩。
The large and small arms are straight, and the front bending arm is about 2.6m (mainly to connect with the vibrating hammer to facilitate the installation of valve block and pipeline) and the vibrating hammer are used to drive and pull out steel sheet piles when building roads and railways or burying pipelines.
5.抓木机、抓料机装卸煤机加长臂
5. Lengthening arm of wood grabber, material grabber and coal handling machine
更多的时候为了装卸火车或者汽车而设计，一般大臂7.6米，小臂5-6米.前置抓木器、抓钳器或者贝壳挖斗。
More often, it is designed for loading and unloading trains or cars. Generally, the upper arm is 7.6m and the lower arm is 5-6m Front grab, gripper or shell bucket.
The above is the main content of the extended arm excavator rental for you to share. Please continue to pay attention to us for more wonderful content: //www.wondgo.com
