Pipe bending machines can be broadly categorized into types such as CNC pipe benders and hydraulic pipe benders. They are primarily used for pipeline installation and fabrication in sectors including power construction, road and railway infrastructure, boilers, bridges, shipbuilding, furniture manufacturing, and interior decoration. These machines offer advantages such as versatility, sound structural design, and ease of operation. Beyond their bending capabilities, they also function as widely used shearing tools in machining, capable of cutting steel plates of various thicknesses. The development of pipe bending machines was driven by the need to overcome the time-consuming nature of manual bending and the inferior aesthetic quality of manual work compared to machine-produced results; these machines ensure a superior finish. As a common piece of equipment, the pipe bending machine primarily bends objects, significantly reducing labor costs compared to traditional methods and greatly enhancing work efficiency.

During the bending process, the mandrel serves primarily to support the inner wall of the tube at the bend radius, preventing deformation. Currently, it is difficult to guarantee the quality of domestically produced tubing when bending it on a machine without using a mandrel. Mandrels come in various forms, such as cylindrical mandrels, universal mandrels (with single, double, triple, or quadruple ball heads), and directional mandrels (with single or multiple ball heads). Additionally, the positioning of the mandrel influences the bending outcome: theoretically, its tangent point should align with the tangent point of the bending die; however, extensive testing has shown that positioning it 1–2 mm ahead of this point yields better quality. Conversely, if the lead distance is excessive, the outer wall of the bent section may develop a defect known as a "goose head" (a localized bulge or distortion).

Bending speed significantly affects forming quality. Excessive speed can cause the bent section of the tube to flatten, fail to meet roundness requirements, or result in tearing or breakage. Conversely, speeds that are too slow can lead to wrinkling and slippage of the clamping block; with large-diameter pipes, slow speeds may also cause the bent section to collapse or sag. Based on extensive testing with these CNC pipe bending machines, the optimal bending speed is determined to be between 20% and 40% of the machine's maximum speed. Zhangjiagang Huameng Machinery Technology Co., Ltd. specializes in the manufacture of pipe bending machines, including CNC, hydraulic, and fully automatic models. Adhering to the business philosophy of "Customer First and Integrity-Based," we sincerely welcome new and existing clients to visit us, and our entire team is dedicated to providing you with comprehensive service.