The 2BP-680 is a robust, fully automated tray seeding machine engineered for rice nurseries, seedling farms, and agricultural cooperatives that prioritize deep-soil seedbeds and consistent tray quality. Built on a stationary frame with rotary belt conveying, the machine performs soil spreading, precision seeding, covering, leveling, and watering in one continuous cycle. With an hourly output of 680 trays and the largest soil-box capacity in its class, it is the ideal choice for growers who require extended uninterrupted runs and uniform, nursery-ready trays straight off the line.

Fully Automated Five-Stage Workflow: The machine executes soil spreading, seeding, covering, leveling, and watering in one uninterrupted pass. Final-step watering settles the seedbed and locks in moisture, delivering trays that are ready for the nursery floor immediately upon discharge.

Wheel-Belt Soil Delivery: Both the soil spreader and the covering unit adopt a wheel-belt delivery design, providing smooth, continuous, and uniform soil distribution with stable metering performance throughout long working shifts.

Dual 70-Liter Large-Capacity Soil Boxes: The 70-liter bed-soil box and 70-liter covering-soil box are the largest in this class, supporting extended continuous operation and dramatically reducing refill frequency during peak production.

Radial External Groove-Wheel Seeder with Stepless Adjustment: The seeding unit adopts a radial external groove-wheel metering mechanism with fully stepless variable-speed adjustment, enabling infinitely precise control of seeding density for hybrid rice, conventional rice, and different regional planting programs. The 20-liter seed box is optimized for the machine's cycle rate.

Rotary Brush Leveling: A rotary brush leveling system evens the covering soil layer to a consistent, controllable thickness, producing a smooth, uniform seedbed surface that promotes even moisture retention and uniform germination.

Rotary Belt Conveying: The rotary belt conveying system provides smooth, stable tray transport with gentle handling, ensuring trays move through every station without displacement or spillage.

Sturdy Fixed Structure: The stationary frame measures 378 × 64 × 125 cm with a stable, vibration-free stance designed for continuous commercial operation.

Electric Drive: A single 370W electric motor powers the entire machine, delivering reliable performance with low energy consumption, quiet operation, and no fuel dependency.

Soil Spreading: Uniform bed-soil distribution via the wheel-belt spreader to form a consistent, well-filled seedbed base.

Precision Seeding: Metered, evenly distributed seeding via the radial external groove wheel with stepless rate adjustment.

Covering: Uniform top-soil distribution over the seeded trays via the wheel-belt covering unit.

Leveling: Rotary brush evens the covering layer to a consistent thickness for a flat, uniform surface.

Watering: Final controlled watering settles the soil, fixes the seed in place, and locks in moisture for optimal germination.