The ZH-III multifunctional platform-style laminate and plastic hot air welding machines is the most user-friendly robotic welder on the market today. Lansite has built this welding wonders' metal components completely out of stainless steel. The durability and strength gained from this rugged construction has allowed us to assemble the first "Roof ready" brand of welding equipment. With safety breakers built into every machine, chain and sprocket running gears and digital controls located on top of the handle, Lansite is the first in saying we have developed a tool for the professional roofer that is designed by professional roofers