Hot Friction Saw

Working Principle

High-Temperature Friction: The blade of a hot friction saw rotates at an extremely high linear speed. When the saw blade contacts the metal workpiece, the intense friction instantly generates high temperatures at the point of contact, causing the metal on the workpiece to reach its melting point.

Melting and Cutting: The high-speed rotation sweeps the molten metal away from the cut, completing the cut.

Cutting Objects:

Hot Saw: Used to cut steel that has reached high temperatures during the hot rolling process, such as hot-rolled billets, profiles, or pipes.

Friction Saw: Used to cut steel at room temperature. In this case, the saw blade must generate higher frictional heat to melt the steel, placing higher demands on the blade itself and requiring a faster rotation speed.

Key Features

High Cutting Speed: The hot friction saw's cutting speed far exceeds that of traditional saws, making it particularly suitable for high-speed cutting on production lines.

Energy Efficiency: Significant energy savings and improved efficiency can be achieved when cutting hot workpieces.

Wide Applicability: Capable of cutting a wide variety of metal shapes, including pipes, profiles, steel plates, and solid bar.

Cutting Quality: The high temperature typically produces some melt and burrs on the cut surface, making it less smooth than a cold saw. This is acceptable in some applications where precision is less critical.

Durability: The saw blade is made of a special alloy steel that withstands extreme heat and high friction conditions.