Precision Moisture Control
A uniform fiber matrix supports more even moisture management across trays.
Professional Propagation Media
Round Rock Wool Propagation Plugs
Model: PP-20R / PP-22ROptimal air-to-water ratio for rapid germination & robust early root growth. Strong integrity, uniform density; round stone wool plugs fit high-speed automated seeding for transplant hydroponic crops.
Key Product Benefits
Early Root Development
Optimized air-filled porosity (AFP) supports early root development, enhancing early nutrient uptake.
Superior Structural Integrity
Resilient stone wool maintains its shape under saturated conditions and mechanical handling, minimizing substrate degradation and seedling loss.
Seamless Automation
Standardized dimensions and clean pre-drilled holes support use with compatible equipment with modern automatic seeders and commercial transplanting equipment.
Product Specifications
- Product
- Round Rock Wool Propagation Plugs
- Model
- PP-20R/PP-22R
- Pre-cut hole
- 1. Standard:1 pre‑drilled hole per plug
2. Custom hole size - Application
- Commercial greenhouse propagation: tomato, pepper, cucumber and flower seedlings
- Compatibility
- Supports physical mechanical seeding
- Safety
- Microbe-free, pathogen-free, non-toxic
- Customization
- Custom plug sizes, hole diameters, layouts and heights available
Standard Configurations
| Model | Single size (Ø × H) | Hole Size (Ø × H) | Compatible Tray |
|---|---|---|---|
| PP-20R | 0.8x1in(20x27mm) | φ0.67 in (17.018 mm) × H0.3 in (7.62 mm) | Matching Tray Available |
| PP-22R | 0.86x1in(22x27mm) | Approx.φ0.67 in (17.018 mm) × H0.3 in (7.62 mm) | Matching Tray Available |
| Custom | Customized | Customized | According to Tray Specification |
Need a different size or tray configuration? Custom plug dimensions and planting-hole configurations are available for different propagation systems.
Usage & System Compatibility
Nursery Tray Compatibility
Perfectly fits standard commercial trays (like our 240-Cell EPS Trays), ideal for both manual and automated propagation environments.
Dynamic Irrigation Management
Highly responsive to crop steering strategies. Integrates seamlessly with ebb-and-flow benches, misting, and precision drip irrigation.
Frictionless Transplanting
Cohesive fibers allow clean tray extraction without root damage, transitioning flawlessly into larger rock wool blocks or direct hydroponic systems (NFT/DWC).
Related Products
240-Cell EPS Propagation Tray
Multi-purpose EPS propagation tray for commercial nurseries, compatible with automated lines and float-bed systems, with precise dimensions for smooth automation and stable root support.
View Product
1.5mm Silicone Grafting Clips
Highly transparent, medical-grade silicone 1.5mm grafting clip.Secures seedlings without bruising; clear design allows growers to monitor callus formation and graft healing.Integrated side hole for support stakes to stabilize grafted plants
View ProductNeed a High-Performance Substrate for Commercial Growing? 🍃
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