Spiral Coil Bending

Spiral coil bending is a mechanical device specifically designed to process metal tubing (commonly copper or steel) into spiral, annular, or multi-turn coils. It uses guide rollers, adjusting rollers, and other devices to continuously form the tubing under controlled pitch, diameter, and bending angle, creating a coil (spiral tube) with a large heat exchange area.

The main functions and applications of coil bending machines include: Heat exchanger manufacturing: Spiral coils are core components of various heat exchangers such as air-to-water and steam-to-water exchangers. Due to their high heat transfer coefficient and small footprint, they are widely used in air conditioning, HVAC, and waste heat recovery systems.

Pipeline layout: In some industrial pipeline construction, coil bending machines can complete the layout of elbows, flanges, instrumentation pipes, etc., in one operation, achieving efficient and automated pipeline processing.

Fan coil unit (sometimes simply called "coil unit"): In a central air conditioning system, a fan coil unit consists of a small fan and a heat exchange coil (with internal circulating chilled water or hot water). It uses the heat exchange between the coil and the air to achieve indoor cooling, heating and dehumidification functions.