Tiedou Komatsu used excavator recommendation (No. 4) 3-6 ton Mini excavator (PC30-45-55-58) comparison

　　This issue includes a Komatsu pure electric lithium battery PC30E-6Mini excavator. The application of pure electric excavators can solve many problems such as noise and pollution of excavators in cities. In particular, pure electric excavators can complete about 8 hours of work in normal mode, and the convenient charging in the city can basically replace conventional fuel-powered excavators. Of course, it has been said before that considering the weather temperature and the intensity of work, pure electric excavators still have shortcomings. However, the Mini excavator itself has low working pressure and can meet the needs of most municipal work. It is understood that if the working range is small and the excavator does not require much mobile space, many people have modified the excavator model, and directly driven by electric wires and motors can solve many problems. Although the limitations are great, such modifications for special work are still popular with many people.

　　The engine models and power of other excavators are basically the same, but the maximum flow of the hydraulic pump is also different, and the size specifications and working range are also different. With the increase of the model, the working range, maximum working height and depth have been improved to a certain extent. These models can still be classified as Mini excavators. Tiedou used excavators to compare the profits and expenses of excavators in the 2024 excavator sales survey under the basic working state. The profit margin for operating mini is actually not smaller than that of other larger models. It is still a very good job for individuals to buy excavators for work.

　　Komatsu PC30E-6 (pure electric)

　　Power type: pure electric

　　Battery capacity: 64 kWh

　　Electric motor power: 36.2 kW

　　Hydraulic pump model: electric variable displacement piston pump

　　Hydraulic pump flow: 70 L/min

　　Dimensions (length x width x height): 4.55 m x 1.55 m x 2.52 m

　　Operating weight: 3.500 kg

　　Maximum digging depth: 3.0 m

　　Maximum digging height: 5.0 m

　　Endurance: about 8 hours (depending on load conditions)

　　Air conditioning: standard

　　Komatsu PC45MR-6 excavator

　　Engine brand and model: Komatsu 4D88E-6

　　Engine power: 29.4 kW (39.4 HP)

　　Hydraulic pump brand and model: Komatsu variable displacement piston pump

　　Hydraulic pump flow: 114 L/min

　　Dimensions (L x W x H): 5.56 m x 1.96 m x 2.55 m

　　Operating weight: 4.750 kg

　　Maximum digging depth: 3.77 m

　　Maximum digging height: 5.91 m

　　Fuel consumption: about 7.5 L/h (depending on load)

　　Air conditioning: standard

　　Komatsu PC55MR-5 excavator

　　Engine brand and model: Komatsu 4D88E-6

　　Engine power: 29.4 kW (39.4 HP)

　　Hydraulic pump brand and model: Komatsu variable displacement piston pump

　　Hydraulic pump flow: 120 L/min

　　Dimensions (L x W x H): 5.50 m x 2.00 m x 2.56 m

　　Operating weight: 5.250 kg

　　Maximum digging depth: 3.83 m

　　Maximum digging height: 5.98 m

　　Fuel consumption: about 8 L/h (depending on load)

　　Air conditioning: standard

　　Komatsu PC58UU-6 excavator

　　Engine brand and model: Komatsu 4D88E-6

　　Engine power: 29.4 kW (39.4 HP)

　　Hydraulic pump brand and model: Komatsu variable displacement piston pump

　　Hydraulic pump flow: 120 L/min

　　Dimensions (length x width x height): 5.63 m x 2.00 m x 2.57 m

　　Operating weight: 5.600 kg

　　Maximum digging depth: 3.87 m

　　Maximum digging height: 6.02 m

　　Fuel consumption: about 8.5 L/h (depending on load)

　　Air conditioning: standard

　　Main differences

　　Power type: The PC30E-6 is electric, while the other models are diesel powered.

　　Engine power: The electric PC30E-6 has a 36.2 kW electric motor, while the other models have a 29.4 kW diesel engine.

　　Hydraulic pump flow: Hydraulic pump flow ranges from 70 L/min for the PC30E-6 to 114 L/min and 120 L/min for the PC45MR-6 and PC55MR-5.

　　Dimensions and operating weight: Operating weights range from 3.500 kg for the PC30E-6 to 5.600 kg for the PC58UU-6. and the dimensions also vary.

　　Working capacity: Maximum digging depth and height increase with the model, with the PC58UU-6 having the greatest digging depth and height.

　　Fuel consumption: The pure electric PC30E-6 has no fuel consumption, while the diesel engine PC45MR-6. PC55MR-5 and PC58UU-6 have a fuel consumption of between 7.5 and 8.5 L/h.

　　Air conditioning: All models are equipped with air conditioning as standard, providing a more comfortable operating environment.

　　Komatsu excavators have always had very high requirements for product quality. The importance of quality control for a product is not only the intuitive impression that the product brings to customers and improves the company's position in the minds of users, but also the blind love that users can have for a brand. Komatsu has very high requirements for its product strength and product quality performance. There are dozens of well-known brands in the current international engineering machinery market. Each excavator or other engineering machinery is equipped with different engines, hydraulic pumps or other core components. Whether it is assembly, adjustment, installation, process, materials, technology, etc., the comprehensive judgment of the quality of a product can no longer be evaluated solely by data. Many users rely too much on parameters and ignore product stability. The pursuit of price over service life is not good for market development.