TwenteStack by Twentebelt: a new belt for spiral freezing and cooling systems

In food production, it is essential to ensure the required cooling or freezing time while making efficient use of floor space. Spiral conveyors achieve this by arranging a long conveyor belt in tiers.

TwenteStack by Twentebelt is a self-supporting stainless steel conveyor belt designed for these systems. It is suitable for both new equipment and belt replacement in existing installations.

How the self-supporting design works:

In this type of system, each belt tier rests on the one below it via side plates. The belt forms its own support structure while conveying the product.

This allows a long conveying path to fit within a compact footprint. The open mesh surface supports the product while allowing the airflow required for freezing and cooling. The stainless steel construction also facilitates cleaning and provides corrosion resistance.

More about how it works.

In a self-supporting system, precise interaction between tiers affects the performance of the entire conveyor. For this reason, TwenteStack’s design pays particular attention to the side plates, contact surfaces and welded joints.

According to the manufacturer, the design provides:

• More stable engagement between tiers through improved geometry and a larger contact area.
• Reduced wear on cross rods by distributing contact between tiers.
• Strong joints through improved welding.

These changes are intended to extend belt service life and reduce maintenance requirements.

Key technical specifications:

Upgrading the belt while retaining existing equipment.

Belt wear does not always require replacing the entire spiral system. TwenteStack can be considered for upgrading an existing system while retaining its frame and drive, subject to a compatibility assessment.

Belt selection takes into account belt dimensions, the number of tiers, load, product type, operating temperature and dwell time in the system.

Planning to replace the belt in a spiral freezing or cooling system? Contact Beltimport — we can help assess TwenteStack™ compatibility with your equipment and select a configuration suited to your production process.