How SLS Machinery's Pipe Collaring Machine Is Reshaping CDU Liquid Cooling Manifold Manufacturing | Tube Branching And Diversion Solutions 2. The Pipe Collaring Machine: A Purpose-Built Tool for Manifold Branching 2.1 What Is a Pipe Collaring Machine? A pipe collaring machine (sometimes called a tube collaring machine or a pipe hole punching machine) is an automated piece of pipe fabrication equipment designed specifically to create branch connections on metal pipes. In one continuous sequence, it performs three operations on the base pipe (commonly copper, stainless steel, or aluminum): Punching the hole Flanging (forming a raised lip around the hole) Trimming the flange to a smooth finish The result is a finished "collar hole" ready for connecting branch pipes. This is why the machine is also referred to as a tube punching machine, pipe branch forming machine, or pipe joint forming machine—all describing the same core capability...