Riyang could offer a variety of pipe fusion machine size up to 3000mm O.D. And each machine has the model number that indicates the maximum pipe size it can fuse. For example, butt fusion machine V630 could fuse maximum pipe 630mm O.D., and from the specification chart, you could always find the minimum size it can fuse. If you have specific requirements for your projects, please consult with Riyang sales.
The proper soaking time varies depending on the pipe material, pipe diameter and wall thickness. You could always find the soaking time from Riyang operation manual for polyethylene welding machine.