Alike the Type 300, these belts are made of broadly wound spiral wire. However, in order to obtain the maximum density of the belt, this type is manufactured with several transverse wires per pitch (3 or 4). The transverse wires are ended by welding or by side plates. The spiral wire is of a flat section. Those belts are very dense and hold heat well.
As a cooling and discharge belt for glassworks, as a conveyor belt for hardening and tempering furnaces, as a conveyor belt in the food-processing industry, as a conveyor belt in the electrotechnical and engineering industry etc.
This type of belt is most commonly used for: