Hydraulic Excavator DIY Student Technology Small Production Science

Product Name :Hydraulic Excavator

Preparation tools: no need to bring your own tools

Age-appropriate stage: greater than 8 years old

Power demand: manual operation

Product use: Exercise the child's manual brain, understand the mechanical structure, learn the hydraulic transmission

Principle: Hydraulic transmission is a transmission method that uses pressurized liquid in a closed system to transmit motion and power. It first converts mechanical energy into pressure energy of the liquid, and then

The energy of the water passing through the piston and the pressure of the water can be converted into mechanical energy by the pressure energy of the liquid between the subtotals

colour:Wood color

Material:wood

size:50*12*30cm

Package Contents:

1* Hydraulic excavator

Only the above package content, other products are not included.

Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.