Three-plus long arm Application: excavator arm after the installation of three sections called demolition machine or demolition machines, demolition machines, demolition machines, used in dismantling houses, high-rise buildings, the disintegration of the project. For example, old houses, chimneys, etc. viaduct. Highly modified demolition demolition excavator machine and add the long arm of proportional, generally recommend 30 tons excavators tonnage or more modifications. Demolition machine is equipped with front-end can be cut or broken hydraulic hammer, in view of the life of the machine and the long arm of effective protection, we recommend the use of hydraulic shears front hammer: hammer drill rod diameter is generally used in the range of 100-135, weight not more than two tons appropriate, hammer due to high noise, does not apply to long-term intensive residential construction area, and the demolition of buildings on the long arm of the machine and add greater harm themselves, but because the price is much cheaper than the hydraulic shears, construction has been a lot of choice for people. Front hydraulic shear: Select 10-20 tonnage hydraulic shear configuration based on the long arm of the excavator tonnage and three-plus length, hydraulic shear weight of not more than two tonnage appropriate. Hydraulic scissor arm using super-hard steel, sharp teeth, shearing force, two symmetrical knife arm movement to achieve efficient operation, enabling maximum opening width 0-1180mm can be directly cut about 80CM diameter concrete pillars, can chunk Cut concrete. Pre-demolition machine hydraulic shear, low noise, high efficiency, low emissions, the mechanical construction noise and exhaust emissions to meet internationally accepted standards, the most suitable for the residents to focus, narrow construction site, construction noise demanding area.