FRATELLI MARIANI INDUSTRIAL SOLUTIONS

Home / marianitech® industrial solutions / Conveyor belts

CONVEYOR BELTS for industry

nastr_trasportatori_industria-320x300

Metal conveyor belts are a crucial component in modern chain transport systems, thanks to their versatility and ability to adapt to various production processes. Featuring an open mesh structure, these devices facilitate the circulation of air or gases and enable effective drainage of excess liquids, making them ideal for washing, drying, and thermal treatment operations. Their application is particularly widespread in the food industry, such as for processing products like pasta during drying processes.

Conveyor Belts for Industrial Applications

Made primarily of stainless steel or iron, metal conveyor belts are widely used in various industrial sectors, including:

  • Food industry
  • Chemical and pharmaceutical industry
  • Mining and construction industry
  • Agriculture and livestock

Among the most common applications are:

  • Industrial ovens
  • Washing systems
  • Drying systems
  • Goods transport
  • Cooling systems

Features and Advantages of Conveyor Belts

Metal conveyor belts, primarily made of stainless steel or other special alloys, are essential components for horizontal material handling and management. Thanks to their wear resistance and durability over time, these components ensure the efficiency and continuity of production processes, even under harsh operating conditions.

Their unique adaptability and long-term reliability make them available in various configurations to optimize productivity across different sectors, minimizing machine downtime.

Main technical characteristics include:

  • High-temperature resistance: can operate up to 1200°C, ensuring reliable performance even under high mechanical stress.
  • Design versatility: meshes can be made in different shapes (round wires, flat bars, etc.) to meet specific needs.
  • Durability in harsh environments: optimized for use in settings with chemical agents, lubricant runoff, and mechanical wear.

Types of Metal Conveyor Belts

Each type of conveyor belt is designed to meet specific operational needs. The main variants include:

  • Type S.A.L.: features right- and left-handed spirals with very closely spaced meshes, connected by a smooth crossbar. Ideal for applications that require stability and continuous material flow.
  • Type S.A.O.: the most common type, made with a corrugated crossbar to ensure a larger distance between meshes, making it suitable for processes requiring high breathability.
  • Type M.S.: features an extremely tight mesh, ideal for transporting small or unstable products.
  • Grecato Type: known for its strength and structural stability, particularly suited for applications that demand greater robustness. This model is commonly used for high-performance transport lines.

Construction Materials

Metal conveyor belts are made from carefully selected materials to ensure optimal performance under specific conditions. The most commonly used materials include:

  • Stainless steel (inox): ideal for highly corrosive environments or food applications, due to its hygienic properties and chemical resistance.
  • Carbon steel: recommended for less demanding applications in terms of corrosion but requiring high mechanical strength.
  • Special alloys: used for applications requiring specific technical characteristics, such as resistance to extreme temperatures or aggressive chemical agents.

Configurations of Industrial Conveyor Belts

Metal chains and belts offer a wide range of configurations, designed to ensure maximum efficiency and reliability in production processes. Main configurations include:

  • Spiral belts: ideal for applications requiring precise product management and high flexibility.
  • Wide mesh belts: promote ventilation and drainage, perfect for washing or drying processes.
  • Tight mesh belts: designed for transporting small or unstable materials, ensuring safe and continuous handling.

Technical Support and Customization

Thanks to our extensive experience in the sector, we offer assistance in selecting the most suitable conveyor belt for your specific needs. Each model comes with detailed technical documentation, designed to ensure flawless installation and operation. Additionally, we provide customized solutions to guarantee total operational efficiency, significantly improving the productivity of industrial plants.

furnaces   FURNACES

washing-plants   WASHING PLANTS

    DRIERS

   TRANSPORT

furnaces   COOLING PLANTS

Types of conveyor belts

Edges of belts

Technical info

The conveyor belts we produce, with the exclusion of the grecato type, which is driven by toothed cog wheels, are mounted on two rollers, one is fixed for traction and the other is mobile for adjustment, at idle (see figure). It is recommended to use rollers without a lateral flange, in particular cases they can be mounted on chains. To guarantee a long service life, the belt must be mounted correctly.

The rollers must have the largest diameter possible (considering that driving takes place by means of friction in the point of contact of the driving roller) and in any case the diameter may not be less than 10 times the pitch of the rod. If the belt slips on the roller, this problem may be solved with the following measures (individually or in combination): – Increase the diameter of the driving drum – Cover the drum with material that has a higher friction coefficient (rubber, knurling, …) – Increase the winding arc of the belt on the drive drum, using a tensioner (see figure)

To support the conveyor belt, and only for plants that run at a slow speed, the belt can be supported by structural angle bars, possibly covered with material that has a low friction coefficient (wear resistant), which can be metallic (iron, steel, manganese) for applications at high temperatures, or plastic (Polizene® for temperatures up to 70°C, PTFE up to 200°C). The angle bars can be placed parallel to the length of the belt (see figure).

If greater flatness is required and if the product to be transported is very heavy, the angle bars must be positioned in a “fishbone” pattern, proportioning their distances based on the weight and dimensions of the material to be transported (see figure)

If the weight and flatness are preponderant factors, support rollers must be used (see figure)

Photo gallery