A suction device containing an outstretched and oscillating cylinder,The mechanism contains the x axis long stroke, and the cylinder movement includes an extended and angular rotation of the z axis.In front of the organization, a set of suckers is installed, which can be used in other situations such as up and down, CCD detection, positioning, etc.The organization is a very good design model, very reference value.if you like,you can paypal for you to get this models or if you have any questions also you can email to me.