Suitable for connecting PE, PP, PVDF pipes and pipes, pipes and fittings in construction sites and trenches, and can also be used in workshops; composed of frame, milling cutter, independent heating plate, milling cutter and heating plate bracket; independent temperature control system for the heating plate, Teflon surface coating; electric milling cutter; the main part of the frame is made of aluminum alloy, simple structure, compact and easy to use; single-operator operation is suitable for complex construction situations. It is suitable for use under complicated construction conditions;