【Anti Blocking Design】The hot melt machine welding head features an innovative anti blocking design that prevents liquid clogging at the outlet, ensuring smooth operations during pipe welding projects with improved efficiency and reduced downtime. 【Adjustable Mold Head】This welding tool includes a mold head and base with adjustable spacing to fit various pipe sizes, providing precise control for optimal welding on different pipe diameters from 20mm to 32mm. 【Durable Aluminum Construction】Made from high grade aluminum, this welding head superior heat resistance and long time durability, maintaining structural integrity even under continuous industrial use. 【Multiple Size Options】Available in three standard sizes (#20, #25, #32) to matching common pipe dimensions (20mm, 25mm, 32mm), making it versatile for plumbing, construction, and repair applications. 【Ergonomic & Efficient】Designed for comfortable handling and easy installation on hot melt machines, this welding head ensures stable while reducing operators fatigue during extended welding projects.