Full definition
Belt fasteners are mechanical connectors specifically designed to join the ends of conveyor belts without the need for vulcanization. This method allows for quicker repairs and replacements, making it a preferred choice in various industrial applications. There are several types of belt fasteners, each suited for specific belt types and operational requirements. The first type is the wire staple or clipper, such as the Clipper by Flexco. These fasteners consist of U-shaped wire staples that are driven through the belt using pneumatic or manual tools and secured with a hinge pin. They are typically used for light to medium-duty applications and can handle belt strengths up to EP500, with installation times ranging from 15 to 30 minutes.
The second type is the hinged plate fastener, which includes options like the Flexco SR and the Alligator by Flexco, as well as MLT MS/Super-Screw. These fasteners are made from formed or cast metal plates that are bolted or screwed through both ends of the belt. The hinge pin connection allows for flexibility when navigating over pulleys, making them suitable for medium to heavy-duty applications with belt strengths up to EP1600. Lastly, there are solid plate fasteners, which are bolt-on and non-hinged, primarily used for temporary repairs. When selecting a belt fastener, considerations must include the belt's strength, thickness, the minimum pulley diameter (since the splice needs to flex around the smallest pulley), and compatibility with cleaning equipment.
The strength of the splice created by these fasteners typically reaches 50-70% of the belt's breaking strength, as detailed in manufacturer splice design tables. While fasteners provide the advantage of rapid installation with minimal tools and are field-portable, for permanent high-strength connections, vulcanized splices are recommended. Brands such as Flexco, MLT, Mato, and ASGCO are recognized leaders in this market, providing a range of solutions for efficient belt maintenance and repair.