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        Double-action stair-type log unitizer with two sets of steps driven by connecting rods and a gearmotor assembly. Provides greater agility, efficiency, and counterbalance of the moving structures and logs during singulation.
| Technical Specifications | USTF 3300 DA15 | UTSF 4300 DA15 | 
|---|---|---|
| Loading and unloading height | 1750 mm | 1750 mm | 
| Internal width | 3300 mm | 4300 mm | 
| Maximum log diameter | 500 mm | 500 mm | 
| Maximum log length | 3200 mm | 4200 mm | 
| Main motor | 15 HP – 4 poles | 15 HP – 4 poles | 
| Control panel and frequency inverter | Included | Included | 
| Machine total length | 5000 mm | 6000 mm | 
| Machine total width | 2300 mm | 2300 mm | 
| Machine total height | 2300 mm | 2300 mm | 
| Approximate weight | 7500 kg | 8000 kg | 



