Check out Pneumatic Push Roller Conveyor 3D model on CGTrader for $30. High-quality mesh by jaketnet2012. Textured.
JPG (JPG, filesize: 34.7 MB), PNG (PNG, filesize: 34.7 MB), MAX (Autodesk 3ds Max, filesize: 34.7 MB), FBX (Autodesk FBX, filesize: 13.3 MB)