The 9YDB-90 round bale wrapper is specifically designed for large-scale grasslands and dairy farms, and functions to bundle and wrap silage, hay, straw, grass, etc. into Φ90*90 cm round bales for ensiling preservation. With individual bale weights of 300–500kg and an hourly output of 55–60 bales, it features automatic feeding, dual-arm wrapping, and a forage recovery system. This machine delivers truly efficient, stable, and low-waste silage baling operations.
Also, this heavy-duty silage round baler wrapper has a daily output of above 150t. Thus, it’s ideal for big-scale livestock farms, silage processing enterprises, etc.If you require other models of Silage Baler Machines, please contact us for more detailed information.
Advantages of automatic round bale wrapper
The 9YDB-90 automatic round bale wrapper with double film wrapping technology is designed for high-efficiency silage production and long-term forage storage. Its advanced dual-film system provides superior sealing performance and improved operational efficiency for modern farms.Wide Application Range:suitable for silage grass,corn stalks,alfalfa,rice straw,wheat straw;etc.
1. Higher Wrapping Efficiency
The double film (dual stretch film arms) system wraps two layers simultaneously, increasing wrapping speed by 30–50% compared to single-film machines. This significantly improves productivity during peak harvest seasons.
2. Better Airtight Sealing
Double film wrapping ensures tighter and more uniform coverage of the bale surface.
- Reduces oxygen penetration
- Improves anaerobic fermentation
- Minimizes mold and spoilage
This results in higher-quality silage and better feed nutrition.
3. Stronger Film Coverage & Durability
With two layers applied at the same time, the bale surface becomes more resistant to:
- Punctures
- UV damage
- Transportation wear
This extends storage time and protects feed value.
4. Lower Labor Cost
The 9YDB-90 automatic round bale wrapper integrates feeding, baling, and wrapping in one system. The fully automated process reduces manual operation and labor requirements, making it ideal for large farms and contractors.
5. Cost-Effective Long-Term Investment
Although double film systems use more film per bale, they reduce feed loss and improve silage quality, resulting in higher livestock productivity and better return on investment.
Technical parameters of silage wrapping machine
| Model | 9YDB-90 | Capacity | 55-60bales/h |
| Bale volume | ≥0.6m³ | Bale size(Dia*Width) | 90*90cm |
| Matched power | Total power: 39 kW (Main unit: 22 kW, Hopper: 4 kW, Material recycling: 2.2 kW, Film wrapping motor: 1.1 kW, Swing arm motor: 2.2 kW, Air pump motor: 7.5 kW) | ||
| Bale weight | 300-430kg/bale | Machine weight | ≥4200kg |
| Number of rollers | 29pcs | Rotary radius of the film frame | 1180(±5)mm |
| Wrapping film | 2pcs | Hopper height | ≥120cm |
| Matched silage film | 50cm*2 | Hopper capacity | 3.5m² |
| Hopper width | ≥170cm | Baling film size | 100cm |
| Rated speed | 950r/min | Bale width | ≥900mm |
| Feed opening | ≥900mm | Efficiency | ≥23T/h |
| Pallet belt width | 150mm*3 | Overall dimensions (L × W × H) | ≥8100*2400*3100mmm |
| Material recycling device | Auger scraper | Bale discharge method | Chain conveyor |
| Air compressor capacity | 300L | Chain brand | Hangzhou Shield |
| Bearing brand | Harbin | Baling structure | Aluminium rollers with belts |
| Control Panel | LCD Display | Number of tires | 2pcs |
| Wrapping arm | Collision sensor | Panel thickness | 8mm |
How does this round bale wrapper work?
Step 1: Automatic Feeding
Fresh forage such as silage grass, corn stalks, or straw is fed into the machine through the conveyor or hopper system.
Step 2: Compression and Baling
The material is compressed inside the baling chamber.
The machine forms a high-density round bale to reduce internal air and improve fermentation quality.
Step 3: Net Wrapping (Optional)
The compacted bale is wrapped with net or binding material to maintain its round shape before film wrapping.
Step 4: Transfer to Wrapping Platform
The finished bale is automatically transferred to the rotating wrapping table.
Step 5: Double Film Wrapping Process
Two stretch film rolls rotate simultaneously around the bale.
- Dual film arms apply film evenly
- Layers overlap tightly
- Oxygen is effectively blocked
This double film system increases wrapping speed and ensures superior airtight sealing.
Step 6: Automatic Cutting and Discharge
After reaching the preset number of layers, the film is automatically cut.
The wrapped bale is discharged and ready for storage or transportation.
