How to select used excavators of different tonnages

As an “all-rounder” in the field of construction machinery, used excavators are widely used in many scenarios such as construction projects, mine exploitation, and road construction. Used excavators of different tonnages have different design and performance characteristics, each playing an irreplaceable role in specific fields. The following will provide a detailed introduction to the uses and characteristics of used excavators in several tonnage ranges, including micro-mini, small, medium, large, and ultra-large.

Micro-mini Used Excavators (1 – 6 Tons)

Micro-mini excavators are compact and flexible. The overall width of the machine is usually less than 1 meter, allowing them to easily enter restricted spaces such as indoors, narrow alleys, and orchards for operation. In indoor decoration projects, these excavators can quickly demolish walls and floors and efficiently clean up construction waste. During garden landscape construction, they can accurately perform fine operations such as digging tree pits, piling small rockeries, and laying irrigation pipelines. In addition, in the agricultural field, micro-mini excavators can be used to dig small irrigation ditches and loosen the soil in orchards, creating good conditions for the growth of crops. Due to their small size and light weight, the damage and compaction to the ground are low, making them particularly suitable for working in areas with high requirements for the ground condition, such as roads and lawns.Such as Used komatsu pc55,Used cat305.5e and so on,all owned these advantages.

Small Used Excavators (6 – 13 Tons)

Small used excavators play an important role in municipal engineering and rural construction. In urban road maintenance, it can quickly dig up the road surface and replace underground pipelines. And due to its flexible operation, it has little impact on the surrounding traffic and residents’ lives. For example,Used komatsu pc110and130,in rural areas, small used excavators are powerful assistants for house construction, capable of completing foundation excavation, site leveling, and other tasks. These excavators are often equipped with a variety of attachments such as breaker hammers and hydraulic shears, which can break concrete structures and demolish small buildings. Moreover, small used excavators are easy to operate and maintain, and the purchase and use costs are relatively low, making them very popular among small engineering teams and individual operators.

Medium-sized Used Excavators (13 – 30 Tons)

Medium-sized used excavators have excellent comprehensive performance and are the most widely used.Used Caterpillar 320, which is good in our factory, many people like it.In large construction projects, they are responsible for earthwork excavation, transportation, and site leveling. They can cooperate with various engineering vehicles to form an efficient operation assembly line. In mine exploitation, medium-sized excavators can excavate ores with relatively high hardness, meeting the needs of small-scale mining. In water conservancy project construction, they can be used for tasks such as river dredging and dam construction. Compared with small excavators, medium-sized excavators have larger working devices, stronger digging force, and higher work efficiency, and can adapt to complex geological conditions and high-intensity operation requirements. In addition, some advanced medium-sized excavators are equipped with intelligent control systems, which can monitor the equipment status in real-time, improving the safety and accuracy of operation.

Large Used Excavators (30 – 80 Tons)

Large used excavators are specially designed for large-scale open-pit mine exploitation and large-scale infrastructure construction. Used Komatsu pc300,which I really want to recommand to you,In large mines, large excavators can excavate thousands of cubic meters of ore every day. Cooperating with large mining trucks, they greatly improve the mining efficiency. In large port construction, it can carry out large-scale earthwork excavation and reclamation operations. These excavators have a powerful power system and a sturdy and durable structure. The working device is large in size and has a strong digging force, which can easily cope with harsh working environments and high-intensity operation tasks. However, the purchase and operation costs of large excavators are high, and the requirements for operators’ technical levels and maintenance capabilities are also more stringent.

Ultra-large Used Excavators (Over 80 Tons)

Ultra-large excavators are mainly applied to extra-large open-pit mines and large-scale water conservancy and hydropower projects. They are huge in size,such as Used komatsu pc2000.The bucket capacity of some ultra-large excavators can reach more than 20 cubic meters, and the amount of excavation at one time is equivalent to the loading capacity of several ordinary trucks. In extra-large mines, ultra-large excavators cooperate with ultra-large mining trucks with a load capacity of hundreds of tons, greatly improving the mine exploitation efficiency. In the construction of large-scale water conservancy and hydropower projects, ultra-large excavators can be used for large-scale engineering operations such as excavating the dam foundation and digging diversion tunnels. These excavators have a high technical content, and the research, development, and manufacturing are difficult. Only a few enterprises in the world are capable of producing them.

Used excavators of different tonnages play a key role in various engineering scenarios with their own unique advantages. Construction project builders need to reasonably select the tonnage and model of excavators according to the project scale, operation environment, and specific requirements, so as to maximize construction efficiency and economic benefits.If you want to know more,please don’t hesitate to contact Hefei Qihong Construction Machinery Foreign Trade Co., LTD.