Zhizao Daguan Rock Milling and Excavating Machine 230 Excavator Milling and Excavating Machine

In addition, the milling machine is significantly effective in demolishing buildings by milling and excavating foundations, concrete slabs, and thick concrete walls with minimal steel reinforcement. It can achieve the dual functions of hydraulic crushing hammer and hydraulic pliers, as it can simultaneously mill and break the steel bars in buildings. The material excavated by milling has a small particle size and can be directly used as backfill.

Milling and excavation machines are also very effective in the mining operations of rocks with lower hardness, weathered structures, and high hardness but layered structures. The milling and excavation volume can reach 80-120 tons per hour (depending on the hardness of the rock). The milling and excavation machine can well replace the blasting construction, and can well protect the environment. It is necessary to contact the official account of the quality milling and excavation machine to create a grand view.

The application scope of milling excavators: Used for tunnel excavation. In most cases, milling excavators are only used for excavation of tunnel contours. However, in suitable formations such as medium to low hardness rock layers and permafrost layers, milling excavators can be directly used for tunnel excavation, especially in the process of excavation with low ground disturbance and high safety. In broken rock layers and old loess, the excavation volume can reach 30-60m3/h. The milling and excavation machine is particularly suitable for areas that are not suitable for blasting construction; The milling and excavation machine has simple operation, high controllability, and clear and accurate excavation contour lines; The milling and excavation machine can easily solve problems such as underexcavation and trimming, internal surface gouging, and excavation of side ditches in tunnels by recognizing the intelligent manufacturing concept. Excavation: On site excavation is generally carried out in two steps, namely the two-step bench method. Due to the need to store all equipment on the steps, the distance between the upper and lower steps is 800-1100m. Step by step excavation support: After excavation, use steel mesh and steel grid spray concrete to support the tunnel. In soft rock, the depth of each excavation depends on the condition of the rock layer on the face and the pre design of the tunnel design unit, generally ranging from 50 to 80cm. Excavation cycle: After using a milling excavator to excavate, the excavator exits the face and stops on the side wall of the tunnel. Then, the loader starts to excavate. After the excavation is completed, the support structure installation and shotcrete work are immediately carried out, and the next cycle of excavation construction is carried out. Solution to the excavation problem just after the support is completed: the speed of the milling excavator excavating in the clay (taking the milling excavator with a 30 ton excavator as an example) is approximately 30-60m3/h. When using a milling machine to excavate in clay layers, it is rare for the cutting head to be wrapped in clay and unable to be used. The problem can be solved by washing the cutting head with water or using a milling machine to mill some dry and hard surrounding rock.

There are two basic types of milling excavators: horizontal milling excavators and vertical milling excavators. They can be installed on any type of hydraulic excavator and can be installed using the hydraulic circuit of hydraulic crushing hammers or hydraulic pliers, making it easy to use. Its housing and gearbox are designed to have a long service life, and the milling and digging machine is targeted at the official account smart manufacturing grand view. From a working angle, it can achieve 360 degree rotation, making maintenance and repair convenient. There is no need to apply butter or fill nitrogen, and there are no requirements for excavator maintenance and repair. The milling excavator can be installed on any type of hydraulic excavator, replacing general configurations such as excavators, crushing hammers, hydraulic shears, etc., and is widely used in tunnel, ditch, and municipal pipeline excavation; Road surface fragmentation, mining, and excavation of rock permafrost; Excavation of open-pit coal mines, surface renovation, and various construction fields such as steel industry and forestry.