Closed Spiral Belts: production, application and expertise

01
Sep
2025

The benefits for companies are clear: higher efficiency, minimal downtime, optimal product quality and long plant life. Thanks to customized solutions and extensive engineering, each Triflex tire can be fully tailored to a company's unique requirements. For companies that seek flexibility, hygiene and sustainability in their industrial transport solutions, Tribelt's Triflex conveyor belts are the wise choice.

What are closed spiral belts?

Closed spiral belts are high-quality metal conveyor belts that are specially designed for production processes where a dense belt surface, high stability and accurate product guidance are essential. These belts consist of spirally woven wires that provide a flat and robust transport surface. Due to their construction, they can transport small products safely, while at the same time being resistant to high temperatures and mechanical stress.

Features of closed spiral belts:

  • Dense tire surface: prevents loss or damage to small products.
  • High stability: ensures a straight and reliable belt run.
  • Temperature resistant: suitable for processes up to approximately 1150°C.
  • Precision production: customization possible for specific process needs.

These properties make closed spiral belts a reliable solution for various industrial applications that focus on precision and continuity.

Key benefits of closed spiral belts

Closed spiral belts offer companies and operators a range of benefits that directly contribute to efficiency, safety and ease of maintenance:

  1. Efficiency and process continuity: the stable and straight running behavior minimizes downtime and product loss.
  2. Durability and robustness: suitable for heavy mechanical loads and high temperatures, significantly extending the life of the tire.
  3. Optimal heat transfer: thanks to the dense surface, products are treated evenly in ovens, sterilization tunnels or heat treatment processes.
  4. Ease of maintenance: Tribelt's construction and in-house production guarantee consistent quality and easy replacements when necessary.
  5. Safety and product protection: small products stay on the belt, while the robust design prevents damage.

Because of these advantages, closed spiral belts not only contribute to product quality, but also to the operational efficiency and reliability of the production process.

Applications in various sectors

Closed spiral belts are used worldwide in various sectors, where specific transport and heat treatment processes are crucial:

  • Bakery industry: as oven belts for direct baking on the belt.
  • Pharmaceutical industry: in sterilization tunnels for the safe and controlled processing of medicinal products.
  • Metal and glass industry: for processes such as annealing, tempering, hardening, sintering and brazing.
  • Mechanical engineering: as output belts for machining machines.
  • Heat treatment: as curtains or screens in tunnel ovens for heat preservation.
  • Decorative applications: for example in jewelry production, where precision is essential.

This wide range of applications shows that closed spiral belts offer versatile solutions for industrial as well as food and special production processes.

Closed spiral belts, variants and customization by Tribelt

Tribelt offers various variants of closed spiral belts, so that every production need can be met exactly:

  • Wide spiral belt (WG-I): with multiple inserts for versatile applications.
  • Narrow spiral conveyor with S-hook (ES): for processes with very small products and precise guidance.

Specifications and options include:

  • Pitch: 5 — 25 mm | Wire diameter: 0.8 — 3.15 mm
  • Temperature range up to 1150°C
  • Bandwidths up to 4000 mm
  • Lateral chains, carriers, welded edges and raised side plates for optimal product guidance
  • PE1000 contact surfaces for silent support

Thanks to its complete in-house production, Tribelt can adapt each belt to specific requirements, whether it concerns high temperatures, special mechanical loads or special product sizes. This customization guarantees a perfect fit to your process and maximum reliability.

Why choose closed spiral belts?

Closed spiral belts are a crucial link in production processes that focus on precision, stability and product protection. They combine a dense belt surface, robust construction and excellent heat transfer with the flexibility of customization. As a result, they ensure

  • Protecting products against damage or loss
  • Long life and minimal maintenance requirements
  • Continuity and efficiency in the production process

With Tribelt's expertise and production capabilities, you are assured of a conveyor belt that perfectly matches your specific production environment and performs reliably for years. For companies that value precision, sustainability and efficiency, opting for a closed spiral belt is a strategic and profitable investment.

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