Freezing tunnels are widely used in the food industry to freeze a variety of products, such as meats, fish, fruits, vegetables, bakery, and dairy products.
Conveyor metal belts are key in this process as they need to be designed to withstand low temperatures and transport the product efficiently and controlled.
Our metal belt for freezing tunnels is the metal spiral belt with links (CTA).
Its main feature is versatility, as it can be applied in both straight and curved sections. If required, it can incorporate mesh and/or edge guards and/or lift attachements.
The finish on the link will depend on the type of traction the customer needs. It can be smooth; in this case, the rod is flush and welded directly to the link (buttonless welded edge). Or with an external bump, in this case, the rod ends are upset and welded with a point to the link (welded button edge).
In the case of traction with a drive shaft and sprockets, these will mesh directly with the links. In this case, the smooth lateral finish may be suitable.
However, in installations with curves and towers, where traction is provided by an inner drum, the welded button edge can facilitate traction.
In terms of hygiene, the buttonless welded edge has advantages, as it is easier to clean and disinfect, presenting fewer crevices where residues can accumulate and bacteria can proliferate.
The three standard models of link pitch are: 19.05mm, 25.4mm, and 27.43mm. The turning radius will be determined by this pitch.
We manufacture it in stainless steel AISI-304L and AISI 316L according to needs.
For widths greater than 1200mm, it is recommended to include a third central link to prevent the rods from bowing.
In installations where only straight sections are needed, the eyelink mesh metal belt with electro-welded rod (CMG-VE) can be used.