Introduction High Density Polyethylene (HDPE) is widely used in pipelines, water systems, drainage networks, and industrial applications. Strong and leak-free connections are essential for durability, which makes HDPE welding a critical process. Whether you are working with HDPE pipe, HDPE plastic sheets, or polyethylene sheets, selecting the right HDPE welder is the key to achieving long-lasting joints. This guide explains how to choose the best HDPE butt fusion machine based on pipe size, project needs, and technical features. Core Features