The Caterpillar 390D excavator is a heavy-duty construction machine that has been widely praised in the industry for its excellent performance and efficient working ability. For businesses or individuals in need, leasing is often a more economical and flexible option. So, what is the specific price of the Caterpillar 390D excavator monthly rental? It mainly depends on the pricing strategy of the leasing company, the age of the equipment, the ancillary services, and the length of the lease. First of all, the monthly rental cost of Caterpillar 390D excavators on the market may range from tens of thousands to hundreds of thousands of yuan, and the specific amount needs to be further consulted with various companies that provide rental services. During the rental process, it is recommended that you compare the quotations of different companies in detail, and pay attention to whether they include additional services such as maintenance and repair. In addition, the excavator's working location, construction environment and expected working hours will also affect the calculation of the monthly rent. Therefore, when considering leasing a Caterpillar 390D excavator, it is important to clearly communicate your actual needs to the lessor so that you can get the most accurate and cost-effective rental quote. In summary, there is no fixed answer to the question of "how much is the monthly rent of a Caterpillar 390D excavator", it will fluctuate according to various specific situations, and the key is to find the most suitable leasing solution for your project needs. In order to obtain accurate rental price information, it is strongly recommended to contact a reputable Caterpillar dealer or professional heavy machinery rental service provider directly for more information.