In modern industrial nursery systems, the precision and efficiency of the seeding process directly affect germination rates, seedling uniformity, and overall product consistency. As the nursery industry accelerates its shift toward mechanization and intelligent automation, traditional manual seeding methods are increasingly unable to meet the demands of large-scale production.
The KRT-HP-680 Needle-Vacuum Seeding Line is a core piece of equipment in industrial nursery production. Built around negative-pressure air-suction technology, it integrates substrate tray filling, precision seeding, and substrate backfilling into a single automated workflow. It provides a high-precision, high-efficiency automation solution for plug tray seeding of vegetables, flowers, and select economic crops.
- Machine Structure: Three Core Workstations Working in Coordination
The complete KRT-HP-680 line consists of three major components: a substrate tray filler, a vacuum precision seeder, and a secondary substrate backfilling unit. Each workstation is connected by a conveyor system, forming a fully automated seeding process.
During operation, plug trays automatically enter the line and proceed through the following stages:
· Substrate filling: The tray filler evenly fills each plug cavity with substrate, ensuring sufficient volume and consistent density.
· Leveling and compacting: A dedicated leveling unit standardizes the surface of each cavity, ensuring uniform substrate depth and creating consistent conditions for seeding.
· Needle-vacuum seeding: The vacuum seeding unit activates. A vacuum pump generates stable negative pressure, and precision suction needles pick up seeds one by one from a vibrating seed tray or seed trough. The needles then move above the plug tray and release the seeds into the corresponding cavities through momentary pressure cutoff or a positive-pressure pulse.
· Backfilling and covering: A subsequent unit covers the seeds with substrate, ensuring consistent seeding depth and promoting uniform germination.
Every stage of the line operates in tight coordination with stable performance, greatly reducing reliance on manual labor.
- Application Range: One Machine for a Wide Variety of Crops
The KRT-HP-680 offers excellent seed adaptability, capable of precision sowing for seeds of different sizes and shapes.
Leafy vegetables: pepper, tomato, eggplant, cabbage, cauliflower, broccoli, Chinese cabbage, scallion, onion, leek, lettuce, leaf lettuce, celtuce, celery, and more.
Fruit and melon crops: cucumber, melon, Hami melon, watermelon, pumpkin, corn, and more.
Medicinal and flower crops: Atractylodes macrocephala, Atractylodes lancea, chrysanthemum, tulip, violet, and more.
The machine performs particularly well with larger seeds, delivering extended suction travel and precise gripping accuracy. Its point-seeding accuracy and adaptability significantly outperform conventional seeding methods.
- Core Technology: Convex Nozzle Design and Precision Negative-Pressure Control
The needle-vacuum seeding unit is the technological heart of the KRT-HP-680. The equipment features a convex nozzle design that effectively accommodates both round and irregularly shaped seeds, maintaining high stability and precision during suction while significantly reducing missed picks and mispicks.
For different crop seed characteristics, the machine supports interchangeable suction needle templates, and air pressure parameters can be adjusted to achieve optimal suction performance. Current key performance indicators for this model are as follows:
· Single-seed rate: ≥98%
· Empty cavity rate: ≤2%
· Seeding efficiency: 300–500 trays per hour
Compared with manual seeding, operational efficiency is improved by dozens of times while maintaining high seeding accuracy and consistency.
- Industry Value: A Standard Configuration for Medium and Large Nursery Enterprises
As the industrial nursery sector continues to develop rapidly, nursery enterprises face increasingly stringent requirements for seedling standardization and commercial consistency. With its high-precision seed picking, broad adaptability, and stable, reliable performance, the KRT-HP-680 is steadily becoming a standard configuration for medium and large nursery operations.
Whether for equipment selection in new nursery facilities or automation upgrades of existing production lines, the needle-vacuum seeding line provides solid technical support, helping enterprises reduce costs, improve efficiency, and expand production capacity.
If you have equipment selection or production line upgrade needs for nursery seeding, please feel free to contact us for a tailored technical solution and configuration recommendation.