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Conveyor belts with rollers and driving rollers are major components of conveying equipment; they are cylindrical elements that drive the conveyor belt in an automatic manner or change its direction of transport. Most are used for transporting items with a flat bottom, and consist mainly of drive rollers, frames, supports, drive units, and other components. It features a large conveying capacity, high speed, smooth operation, and the ability to achieve concurrent, separate conveying of multiple product types on the same line. The powered roller conveyor has a simple structure, high reliability, is easy to use and maintain, and can withstand large impact loads. It is widely used for cost-effective packaging and conveying in various industries, as well as for cyclic conveying. Working principle: Power roller conveyors are commonly used in horizontal or slightly upward sloping conveying lines. The drive mechanism transmits power to the drum, causing it to rotate, and transports the items through the friction between the surface of the drum and the surface of the items being conveyed. A powered roller conveyor mainly consists of two end rollers and a closed conveyor belt fitted tightly around them. The drum that drives the conveyor belt to rotate is called the drive drum (transmission drum) ； Another drum that merely changes the direction of belt movement is called a redirecting drum. The drive drum is driven by an electric motor through a reducer, and the conveyor belt is pulled by the friction between the drive drum and the conveyor belt. The drive drum is generally installed at the discharge end to increase traction, which facilitates pulling. The material is fed in from the feeding end and falls onto the rotating conveyor belt; the friction generated by the conveyor belt drives the material to be discharged from the discharge end of the bag. The principle of the single-chain roller conveyor is that the rollers are driven by a circular chain, which moves within special guides; this design offers easy installation and low noise levels. Single-sprocket rollers are driven using a large cycle, while double-sprocket rollers are driven using a small cycle; other driving methods are used in lightweight conveying applications. It is suitable for transporting various types of boxes, bags, pallets, and other items; bulk materials, small items, or irregular objects should be placed on pallets or transport containers for transportation. Parameters of powered roller conveyors: Drive methods include single (double) sprockets, single or double O-type belts, single (double) synchronous pulleys, and belt drives. The matching sprocket has P=12.7mm; Z=14 ； P=15.875mm; Z=14. The drum diameter is 50.8, 60, 75, 89 (mm) ； The turning radius of the turning roller conveyor is 900mm and 1200mm ； 1. Drum materials: galvanized, aluminized, stainless steel, PVC materials, etc. 2. Drum type: Double sprocket conical drum ； O-shaped groove rollers, standard conical rollers. 3. Drum length: generally 500~1200mm ； It can be customized according to user requirements. 4. Linear support frames: stainless steel, aluminum profiles, powder-coated carbon steel, etc. 5. Conveying speed: generally 10~30 M/min ； It can operate continuously with variable frequency speed control based on user requirements. 6. Non-standard power roller conveyors are customized according to specific requirements. Power roller conveyor equipment is classified into separately driven and group-driven types based on the driving method. Each roller of the former is equipped with a separate drive mechanism to facilitate removal. The latter consists of several rollers grouped together and driven by a single drive unit, in order to reduce equipment costs. The transmission methods for group drive include gear drive, chain drive, and belt drive. Power roller conveyors are generally driven by AC motors; as needed, they can also be driven by two-speed motors or hydraulic motors. Power roller conveyors can also be divided into straight power roller conveyors, curved power roller conveyors, power roller conveyors, free-power roller conveyors, heavy-duty power roller conveyors, and rubber-coated power roller conveyors ； Turning roll line – Standard inner radius for turns: 300, 600, 900, 1200 mm, etc., or customized ； Diameter of rollers used for straight-section rollers: 38, 50, 60, 76, 89 mm, etc., or custom-made ； Layout forms: horizontal conveying, inclined conveying, and turning conveying ； Structural forms: Based on the drive mechanism, they can be categorized into powered types, electric drums, etc ； Frame material: powder-coated carbon steel, stainless steel, aluminum profiles ； Power mode: reduction motor drive, electric drum drive, etc ； Drive methods: single sprocket, double sprockets, O-type belts, flat friction drive belts, synchronous belts, etc ； Speed control methods for powered roller conveyors: variable frequency speed control, stepless speed variation, etc ； Classification of rollers: Based on the type of power source, they are divided into non-powered rollers and powered rollers. Non-powered rollers: These are cylindrical components that drive the conveyor belt or change its direction of movement manually; they represent a type of roller and are essential components of conveying equipment. Power drums are further divided into single sprocket drums, double-row sprocket drums, grooved power drums, synchronous belt power drums, multi-vibration belt power drums, electric drums, and stackable drums. The powered roller conveyor, when used in conjunction with a lifting transplanting machine, enables turning and movement at 90 degrees, 180 degrees, and 270 degrees. Drum diameter: 60X3.0, load: around 500KG. 90-degree dynamic roller, used for conveying at corners, offering high efficiency and low cost.