Timing belts for packaging machines

One of the industries where this solution is most commonly used is packaging, specifically in packaging machines where the film or wrapping reel is unwound onto a former tube using two coated timing belts. The wide variety of packaging types available on the market makes it challenging to select a single coating that maximizes machine performance. For this reason, we have analyzed various mixtures and hardness levels to best meet the specific needs of our customers.

The advantages of silicone rubber

The lifespan of the belts can be significantly extended—by approximately 2 to 3 times, depending on the type of film used. The high grip provided by the softness and elasticity of silicone rubber enables a faster film unwinding speed compared to other mixtures. While synthetic rubber tends to dry out over time, losing its original performance, silicone rubber retains its properties, ensuring consistent performance throughout the machine’s life.

Unlike natural rubber, which requires cold gluing and limits the system to a single direction of movement, silicone rubber can be hot-moulded, allowing movement in both directions and ensuring exceptional adhesion between the belt and its coating. Additionally, silicone rubber’s unique properties enable it to withstand a wide range of temperatures, from as low as 0°C to as high as 180°C.

Available Hardnesses and Colours

Silicone rubber mixtures are primarily made of silicone and are available in various hardness levels (SHORE) to provide the optimal grip for different types of wraps or films being unwound.

Orange Silicone Rubber, 30 SHORE
Green Silicone Rubber, 40 SHORE
Yellow or Blue Silicone Rubber, 50 SHORE
Grey Silicone Rubber, 65 SHORE

Belts for Vacuum Systems

To achieve optimal performance, packaging machines are equipped with a vacuum system that, when paired with timing belts machined to precise specifications, can significantly increase the machine’s cycle count.

To provide tailored solutions for all types of vacuum systems, we have invested in advanced technologies that enable us to design the ideal geometries for the slots and perform the necessary manufacturing on high-speed machining centers, ensuring rapid production times.