Rubber belt elevators (belt bucket elevators) offer significant advantages over other types of elevators, such as chain and plate-chain elevators. Fabric rubber conveyor belts for elevators serve as the core traction components in vertical conveying systems and are widely used in bucket elevators across industries such as building materials, mining, chemicals, metallurgy, grain, and power generation. As one of the two major product series alongside steel cord conveyor belts, this belt is constructed with multiple layers of rubber-coated fabric laminated to form a high-strength core, which is then covered with a protective rubber layer on the outer surface. It is meticulously manufactured through specific molding and vulcanization processes. The main differences between the two are as follows: Fabric-core belts use synthetic fiber fabrics such as polyester (EP) and nylon (NN) as their skeleton, resulting in lighter weight, better troughing performance, and lower requirements for matching drums, making them more suitable for short-distance, medium-to-low-intensity vertical lifting applications; In contrast, steel-cord belts utilize high-strength galvanized steel cables to achieve extremely low elongation (approximately 0.25%) under high rated tension, making them better suited for high-capacity, long-distance, and heavy-duty conveying applications.
Product Parameters
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Parameters |
Value/Range |
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Tensile strength |
EP200～EP2500 N/mm |
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Belt Width |
W 500～2000 mm |
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Standard |
DIN22102, GB7984, AS1332 and other standard |
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Elongation |
<0.3% |
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Available types of rubber cover |
Good quality, wear resistant, flame retardant, Heat resistant, etc. |
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Clients need to provide the dimensions of the lifting bucket, as well as the number and locations of the holes. we can drill holes according to your specifications or provide matching lifting buckets and installation accessories. Joints are produced using advanced hot vulcanization technology, ensuring joint strength is as reliable as the belt body itself and effectively preventing cracking or delamination during operation. |
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Major Technical Advantages and Application
Compared to steel-cord conveyor belts, fabric-cord belts are lighter in overall weight, have relatively lower manufacturing costs, and cause less wear on splices and drive drums. They are particularly suitable for vertical hoisting systems with medium to low heights (e.g., under 40 meters) and moderate loads. However, in operating conditions with high moisture content, strong oil-based corrosion, or prolonged high temperatures (＞60°C), careful selection or a switch to specially formulated EP rubber conveyor belts is required.
Cover Rubber standard: Based on material abrasiveness and load levels, the product is categorized into Heavy-Duty (Type D), Medium-Duty (Type L), and High-Temperature Material Conveying (Type T). Oil-resistant and acid/alkali-resistant formulations can be customized as needed to prevent rubber layer delamination and peeling.
Impact Resistance and Flexibility: A specially reinforced tear-resistant polyester fabric layer or an optional steel cord tear-resistant layer provides the conveyor belt with excellent impact and tear resistance, as well as good troughing properties and flexibility. The cover rubber is made of high-quality natural rubber, with a tensile strength of 18–25 MPa and an abrasion volume as low as 90 mm³, offering exceptional wear resistance, impact resistance, and tear resistance, making it ideal for high-temperature applications such as cement clinker, sintered ore, and coal. It also supports customization for special properties including heat resistance, wear resistance, flame retardancy, and cold resistance.
When selecting a belt, it is necessary to comprehensively consider material characteristics (temperature, humidity, pH, abrasiveness), lifting height, conveying capacity, and compatibility with supporting equipment to determine the optimal canvas material, cover rubber grade, and number of fabric plies, thereby ensuring the long-term safe and efficient operation of the equipment.
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