液壓挖掘機是一種土石方施工設備，具有功能強、適用范圍廣等特點。配置特殊附屬裝置后，還可以進行碎石、拆卸、抓木、抓鋼等功能。也可以利用更換多種工作裝置增加挖掘機的特殊用途。根據客戶需求我們在23T和36T級挖掘機上增加了超長臂特殊工作裝置，
Hydraulic excavator is a kind of earthwork construction equipment, which has the characteristics of strong function and wide application range. After the special accessory device is configured, it can also perform the functions of gravel, disassembly, wood grabbing, steel grabbing, etc. A variety of working devices can also be replaced to increase the special purpose of the excavator. According to customer requirements, we have added special working devices with super long arms on 23t and 36t excavators,
超長臂挖掘機，特點是挖掘力較小，宜配較小容量的鏟斗，優點是擴大挖掘范圍。因此超長臂挖掘機主要用于疏浚河道、清理淤泥、河沙、碎石、拆除高層建筑物等，面對各種惡劣工況均能發揮超長臂的威力。特別是因自然災害造成的泥石流滑坡引起的河流堵塞的挖掘、清理和疏浚工作以及長距離、更大深度的搬運土方、砂土、碎石等工作。
The super long arm excavator is characterized by small excavation force and should be equipped with a bucket with small capacity. Its advantage is to expand the excavation range. Therefore, the super long arm excavator is mainly used to dredge river channels, clean up silt, river sand, gravel, dismantle high-rise buildings, etc. it can give full play to the power of the super long arm in the face of various adverse conditions. In particular, excavation, cleaning and dredging of river blockage caused by debris flow and landslide caused by natural disasters, as well as long-distance and deeper transportation of earthwork, sand and gravel.

超長臂挖掘機適用于挖掘和裝卸1500kg/m3以下的松散物料。嚴禁用于挖掘和裝載1500kg/m3以上的物料或更高級別的土石方（含未經爆破沉積水下的堅硬鵝卵石、砂石等）。
The super long arm excavator is suitable for excavating and loading and unloading loose materials below 1500kg / m3. It is strictly prohibited to excavate and load materials above 1500kg / m3 or earthwork of higher level (including hard pebbles, sand, etc. deposited underwater without blasting).
在使用超長臂作業裝置進行作業時要特別注意以下幾點：
Pay special attention to the following points when using the super long arm operation device:
1）未經允許，嚴禁私自改動挖掘機工作裝置和其它結構、機構，這樣可能會造成工作裝置和其它結構、機構損壞及出現各類問題。
1) It is strictly prohibited to change the working device and other structures and mechanisms of the excavator without permission, which may cause damage to the working device and other structures and mechanisms and various problems.
2）嚴禁橫向操作用于刮土及拖拉其它物料。
2) Lateral operation is strictly prohibited for scraping soil and dragging other materials.
3）嚴禁用于起吊或拖拉重物（含使用運輸狀態下的撐桿固定孔進行起吊）。
3) It is strictly prohibited to lift or drag heavy objects (including lifting by using the brace fixing hole under transportation).
4）當用戶不小心將整機履帶陷入泥濘的稀泥地或坑中時，嚴禁用工作裝置（鏟斗、斗桿、動臂等）作為支撐進行自救，這樣會造成結構件的損壞。只能用拖車拖動整機或者用起重機將整機吊離現場。
4) When the user accidentally plunges the crawler of the whole machine into the muddy mud or pit, it is strictly prohibited to use the working device (bucket, stick, boom, etc.) as the support for self rescue, which will cause damage to the structural parts. The complete machine can only be dragged by trailer or lifted off the site by crane.