

Negri bio shredders have been designed with the demands of commercial use in mind. As shredding is by means of a drum rotor fitted with knives and hammer flails, this type of machine is less susceptable to damage than a conventional chipper. It is, therefore, ideally suited to landscape gardeners and grounds maintance contractors who have a requirement to reduce brash and prunings left over from tree and hedgerow maintenance.
The models listed below are those stocked by Kilworth. Many other models are available. For further information click here to go to the manufacturers website.
| Model | R130P | R130T | R130M | R225P | R225T | R255T |
| Chipping Capacity | 65mm | 65mm | 65mm | n/a | n/a | n/a |
| Shredding Capacity | 30mm | 30mm | 30mm | 90mm | 90mm | 100mm |
| Power | Honda GX160 5.5HP | Tractor 15HP min | 2 wheel tractor | Honda GX390 13HP | Tractor 20HP min | Tractor 25HP min |
| Feed | Gravity | Gravity | Gravity | Hyd feed roller | Hyd feed roller | Hyd feed roller |
| No. Hammers | 22 | 22 | 22 | 8 | 8 | 20 |
| No. Knives | 2 | 2 | 2 | 2 | 2 | 2 |
| Discharge | ground | ground | ground | 1.5m chute | 1.5m chute | 2.0m chute |