▎ 摘　　要

NOVELTY - The small electric excavator comprises motor at 48V and 500-800 W, controller at 48V and 500-800 W, power supply using four 12 V 20 A graphene batteries. Under the control of the controller, the rotating speed is within 640 revolutions per minute. USE - The small electric excavator is used for reclaiming land, weeding and ditching to cultivate wheat fields, potato fields, vegetable garden, orchards and greenhouses. ADVANTAGE - The machine allows a power supply of a local power supply to use the power supply on a storage battery car in a small area, so that large area can be installed with four 12 V 20 A graphene battery in a battery box to provide power to the machine in effective manner. The machine is designed such that a cross knife rest is installed on two sides of the motor, and a transverse notch is added with a strong steel blade under fast rotation of a motor to loosen the soil under the fast rotation, thus deeply digging the soil in efficient manner. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the small electric excavator (Drawing includes non-English language text).