Large-scale plug seedling production for vegetables and flowers often faces prominent drawbacks with manual sowing. These include low working efficiency, frequent missed and repeated sowing, and uneven seedling emergence.

The KMR fully automatic drum nursery seeder is available in two core models: KMR-200 and KMR-300, with a maximum sowing speed of 1200 trays per hour and a sowing accuracy of over 95% for pelleted seeds. It is compatible with various seeds with a particle size ranging from 0.3 mm to 6 mm.

The KMR-200 model features a compact structure and flexible configuration, ideal for small and medium-sized seedling nurseries with limited workshop space. In contrast, the KMR-300 can be equipped with integrated modules including substrate feeding, tray filling, sowing, soil covering, watering, and tray collecting, fully meeting the high-efficiency production demands of large-scale commercial seedling raising.

Applicable seeds and seedling production scenarios

The KMR fully automatic drum-type seeder is specially designed for plug seedling sowing of vegetables and flowers. It adapts to round and partially irregular seeds with a particle size range of 0.3–6 mm. The specific applicability depends on seed size, shape and drum configuration. Pre-purchase sowing tests are recommended for special seeds to ensure stable sowing performance.

This drum nursery seeder machine supports standard plug trays with a maximum width of 540 mm, perfectly matching common 72-hole, 105-hole, and 128-hole seedling trays. Customization is available for floating trays and special-sized plug trays to meet diverse production needs.

Typical application scenarios

• Commercial seedling bases: Greatly improve batch sowing efficiency and meet large-scale, stable seedling order demands.
• Greenhouse vegetable and flower farms: Effectively reduce manual sowing workload and realize standardized seedling raising, facilitating subsequent germination and transplanting.
• Agricultural parks and scientific research institutions: Suitable for multi-variety seedling raising and standardized, precise sowing experiments and production.
• Small and medium-sized seedling workshop upgrading: The independent sowing host can be used with existing supporting equipment to complete low-cost automated transformation.

Highlights of the drum nursery seeder machine

Drum vacuum precision seeding

Manual sowing cannot guarantee single seed per hole, causing severe waste of high-value vegetable and flower seeds. The KMR series adopts a vacuum drum sowing principle. The drum absorbs seeds via vacuum pressure, and redundant seeds are removed by air pressure, realizing accurate seed dropping into tray holes.

Equipped with an independent seed recovery device, the machine recycles unused redundant seeds for reuse, effectively reducing seed loss and production costs.

• Seeding accuracy note: The 95%+ seeding accuracy applies to pelleted seeds. For bare seeds, the sowing effect is affected by seed size, shape, and surface features. Pre-sowing testing is recommended for special seeds.
• Seed adaptability: It fits seed particle sizes ranging from 0.3mm to 6mm, compatible with various vegetable and flower seeds, including round and partial irregular-shaped seeds.

Modular pipeline solution

The drum nursery seeder features a modular structure for flexible configuration. Users can select a standalone seeder or a complete seedling pipeline to fit existing equipment and save costs.

Full pipeline units: substrate feeding, tray filling, hole pressing, drum seeding, soil covering, watering and tray collection.

• Existing seedling workshops: Install only the seeder host for low-cost automatic upgrading without replacing current soil filling and covering equipment.
• New seedling bases: Deploy the full integrated line to finish all procedures from substrate filling to watering in one continuous process.

Photoelectric induction + frequency conversion speed regulation

Fitted with a photoelectric induction system, the drum nursery seeder automatically detects seedling tray positions to prevent empty sowing and material waste. Frequency-conversion speed regulation for conveying, sowing, and soil-covering units effectively avoids tray jamming and stacking, ensuring stable, continuous operation.

• KMR-200: Simple button control, easy to operate, ideal for basic automated seedling production scenarios.
• KMR-300: Siemens PLC + touch screen control system, supports one-click parameter adjustment, suitable for multi-process large-scale seedling raising lines.

Drum nursery seeder main parameters comparison

Equipment debugging and daily maintenance tips

Standard debugging and daily maintenance ensure stable seeding accuracy and long service life of the machine. Key tips are as follows:

• Tray parameters: Set parameters based on actual tray rows and hole layout, not only the total hole count.
• Drum height: Keep an initial 10mm distance between the drum and tray surface, and adjust according to seeding results.
• Line speed matching: Match the speed of filling, seeding, and soil covering units to avoid tray accumulation and jamming.
• Daily maintenance: Regularly clean drum suction holes, filter elements and seed residues, and check air tightness.
• Seed trial test: Test irregular or uneven bare seeds in advance to confirm seeding adaptability.

Selection guide for the drum nursery seeder model

Choose KMR-200 if you meet the following conditions

• Limited workshop space for seedling production
• Already equipped with existing tray filling and soil covering equipment
• Suitable for small and medium-scale vegetable and flower seedling raising
• Prioritize cost-effective and flexible automated equipment upgrading

The compact KMR-200 drum nursery seeder is the ideal choice for small-to-medium seedling farms with flexible production demands and limited site conditions.

Choose KMR-300 if you meet the following conditions

• Newly built standardized seedling production bases
• Need a full automatic assembly line including substrate feeding, tray filling, seeding, soil covering and watering
• Support large-scale, high-volume continuous seedling production
• Require intelligent PLC touch screen centralized parameter control

The KMR-300 integrated seedling line is tailored for large-scale, standardized, and intelligent commercial seedling cultivation scenarios.

Professional selection suggestions

To obtain a customized equipment configuration solution that matches your production needs, please provide the following information before purchasing the drum nursery seeders:

• Daily seedling tray output demand
• Size and hole count of seedling trays
• Types of sowing seeds (pelleted seeds or bare seeds)
• Actual available workshop space
• Existing supporting seedling equipment

Our product lineup covers multiple models of high-efficiency nursery seedling seeders suitable for different planting scales and crop types, as well as fully automatic seedling transplanting machines.

We can support one-stop customized configuration for small, medium, and large commercial seedling bases, helping you realize full-process automated, efficient, and standardized seedling production.