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Rulmeca operates a Service centre fully dedicated to the repair and assembly of Motorized Pulleys
Return belt conveyor idlers are essential components designed to support the empty belt on its return section after the conveyed material has been discharged. Their main function is to maintain belt alignment and ensure smooth motion along the return path.
Rulmeca engineered configuration consists of one or two rollers arranged in a “V” shape with a 10° inclination, which helps keep the belt centered. Different arrangements are available depending on specific application requirements: fixed sets with plain steel rollers or spacer rings for standard conditions, and suspended garland sets with plain rollers and rings for systems requiring greater flexibility.
When selecting return belt conveyor idlers, several design factors must be carefully considered. Belt width and speed should be chosen based on the material flow rate, as these parameters determine the most suitable transom support and roller series.
Special attention must be given to corrosive or abrasive environments, where protective galvanization treatments should be applied to transoms to ensure durability. Since return rollers contact the dirty side of the belt, they are exposed to residual material buildup, which can cause misalignment or damage. In such cases, using Rulmeca return rollers with rubber rings can help prevent material adhesion and improve belt tracking stability.
For long conveyor systems, specific design adaptations are necessary to maintain belt alignment. On conveyors longer than 300 meters, a double return idler set provides additional support for consistent belt centralization. When adjustment of the belt position is required during operation, the integration of a self-centering return idler is recommended.
Another effective solution for long conveyors is the 180° belt inversion method between the drive drum and return drum. This technique reverses the belt orientation, positioning the clean side against the return rollers so that they no longer contact the material-carrying surface, reducing material buildup.
Material handling components ideal for mining applications that require flexibility while guaranteeing durability and safety during transportation.
A range of material handling components for belt conveyors in cement plants, designed and manufactured to guarantee reliability and speed.
Material handling components designed and manufactured to resist corrosion and respond to the varying requirements of the conveyor system.
High-quality material handling components for conveyor systems that offer unrivalled service continuity.
A complete range of material handling components for conveyors, characterized by reliability and durability, offering solutions for all requirements.
Products that are made to last: material handling components for conveyors resistant to various types of corrosive agents.
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Rulmeca’s V-return transom sets are designed for long or critical conveyor systems that require precise belt tracking and continuous performance. These sets provide optimal support for the return side of the conveyor belt: the V-shaped roller configuration guides the belt toward the center of the system, minimizing lateral movement and misalignment. This design enhances operational efficiency, ensures high reliability, helps prevent belt misalignment, and reduces the risk of wear
Self-aligning belt conveyor idlers automatically correct any belt misalignment during operation, ensuring the conveyor belt remains properly centered along its entire length, even in reversible conveyor systems where the belt direction alternates. This self-correcting mechanism allows the idler frame to pivot slightly in response to lateral belt movement, gently steering it back to the correct position, minimizing belt wear, stress and reducing maintenance costs.
Return transoms are built with high-strength materials and feature a reinforced design to ensure maximum operational safety and long life of the product. Their primary function is to preserve belt integrity by maintaining proper balance along the return path. The sturdy construction also enhances system safety by reducing the risk of belt damage or failure during operation. With high load-bearing capacity and resilience to external factors, such as temperature fluctuations these transoms are ideal for long conveyors or critical applications where belt integrity is essential.
Related case histories
The client's end-user operated their barge mounted conveyor system for carbon fuel products and wanted to convert the system for handling grain.
Synergy International FZE turned to Rulmeca to select the components necessary for the construction of a conveyor belt to transport the gold rocks from the Ma'den mine (United Arab Emirates) to the leaching area.
Project for Metso Minerals Ab (Sweden), end customer Boliden Ab in Aitik (Sweden).
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