STEM Toys for Children Educational Science Experiment Technology Toy Set DIY Hydraulic Excavator Model Puzzle Painted Kids Toys

DIY Channel Hydraulic Excavator

Material: wood Suitable
age: over 8 years old

Note:

1.Dinosaur batteries need to be purchased by yourself.
2. English instructions for hydraulic excavator

Principle:

Hydraulic transmission is a transmission mode which uses pressurized liquid in closed system to transfer motion and power. It converts the mechanical energy into the pressure energy of the liquid, and then the pressure energy of the liquid into the mechanical energy.