BÖCK GRAVELBAG Silo Bag
The BÖCK GRAVELBAG is a durable silo bag designed to secure silage covers, silo films, and bunker silo systems without relying on traditional car tires or loose sand. Built for practical farm use, it helps hold the silage cover firmly in place while supporting an uninterrupted oxygen barrier for better silage protection.
Made from robust HDPE fabric, the BÖCK GRAVELBAG offers high tear resistance, strong slip resistance, and long-lasting outdoor performance. Its practical carrying handle makes handling, positioning, and daily use easier around the silo.
When filled correctly with rounded gravel, the bag sits securely on the silage cover and adapts well to the surface. This helps distribute pressure evenly, reduce film movement, and protect the silage underneath from unwanted air entry.
Key Benefits
- Reliable alternative to covering with car tires or loose sand
- Helps secure silage covers and maintain an optimal oxygen barrier
- High tear resistance and maximum slip resistance
- Durable HDPE fabric construction
- Practical integrated carrying handle for easier handling
- Stainless steel closing wire included
- Designed to sit securely when filled with rounded gravel
- Time-saving solution for covering and uncovering silage
- Helps reduce cover movement caused by wind or uneven surfaces
- Suitable for bunker silos, drive-over silos, and silage cover systems
Reliable Weighting for Silage Covers
A secure silage cover is essential for protecting feed quality. The BÖCK GRAVELBAG provides dependable weight across the cover, helping reduce movement and supporting a sealed storage environment. This helps limit unwanted oxygen entry, which is important for maintaining silage quality during storage.
Compared to tires or loose sand, silo bags are cleaner, easier to handle, and more efficient to place and remove. Their shape allows them to rest securely on the cover, helping create consistent pressure across the silage film.
Easy Handling on the Farm
The integrated carrying handle makes the GRAVELBAG easier to lift, move, and position during covering or feed-out. For best performance, the bag should be filled approximately two-thirds full with rounded gravel without fine particles. This allows the bag to settle snugly on the surface while helping avoid unnecessary damage to the silage film.
Technical Details
| Product Type | Silo bag / silage cover weight |
| Available Sizes | 100 × 27 cm and 120 × 27 cm |
| Material | HDPE fabric |
| Fabric Weight | 306 g/m² |
| Recommended Filling | Rounded gravel without fine particles |
| Recommended Fill Level | Approximately two-thirds full |
| Closure | Plastic-coated stainless steel closing wire included |
| Handling Feature | Integrated carrying handle |
| Durability | Tear-resistant and slip-resistant fabric |
| Use Case | Silage cover weighting, bunker silo covering, drive-over silo protection |
Ordering & Availability
BÖCK GRAVELBAG is available in selected sizes for different silage cover setups. Shipping costs may vary depending on order quantity and delivery location, especially when ordering filled bags or larger pallet quantities.
For sizing, availability, filling recommendations, and product guidance, please contact us directly.