The modular structure of a cylinder and motor.In this structure, the X-axis is driven by the cylinder, and both sides use the buffer to achieve the precise position of the position.The z-axis adopts the motor to drive the belt to slide on the guide rail, driven by the motor and the position is accurate.The action of the load and unload material can be realized by using the air cylinder, such as clamping.The model is a good load and unload material structure.if you like,you can paypal for you to get this models or if you have any questions also you can email to me.