Synchronous servo motor, the agency for large span frame is used, driven by synchronous belt module, module between the two groups is very large, via a concentric shaft drive synchronous motor can be realized.The same type of module in the Y-axis, with the z axis can realize the precise control of the x and y axes.The model is controlled by the xy axial module, and the z axis is the cylinder module to achieve some special grasping functions.Classic, this model is: 1. Achieve large span gantry structure, can be in 1 m to 2 m method can be used, (2) synchronous control, synchronization control can be realized through a motor, load, speed is quick.The model has typical characteristics.if you like,you can paypal for you to get this models or if you have any questions also you can email to me.