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Programmatic Comparison · Engineering Brief
Side-by-side comparison of the ARJES Impaktor 350 EVO II and Doppstadt DW 3060 slow-speed twin-shaft shredders — torque, throughput on roots and biomass, and shaft-change economics.
| Spec | ARJES Impaktor 350 EVO II | Doppstadt DW 3060 |
|---|---|---|
| Drive concept | Dual-shaft asynchronous low-speed hydrostatic | Dual-shaft low-speed mechanical |
| Engine | Volvo Penta TAD 583 VE (Stage V) | John Deere 6068 (Stage V) |
| Drive power (kW) | 177 | 160 |
| Drive power (HP) | 238 | 215 |
| Operating weight (kg) | 21 000 | 20 500 |
| Cutting torque (Nm) | 130 000 | 105 000 |
| Shaft speed (rpm) | 11–35 (variable) | 14–24 (variable) |
| Hydrostatic service interval (hrs) | 500 | 300 |
| Shaft cassette swap time (hrs) | 2 (quick-change) | 48 (in-frame shaft change) |
| Setup time (hrs) | 0.5 (SCU auto-calibration) | 1.0 (manual shaft alignment) |
| Material | ARJES Impaktor 350 EVO II | Doppstadt DW 3060 |
|---|---|---|
| Old wood / biomass | 11 – 25 t/h | 9 – 22 t/h |
| Green cuttings / root wood | 20 – 45 t/h | 18 – 38 t/h |
| Commercial waste | 10 – 22 t/h | 8 – 18 t/h |
| Reinforced concrete (with rebar) | On-demand shred | Not recommended |
The Impaktor 350 EVO II delivers 130 000 Nm of cutting torque versus the DW 3060’s 105 000 Nm. On root wood and stumps — the most demanding green-waste feedstock — the ARJES torque reserve translates directly into fewer stall events and faster cycle times.
ARJES quick-change cassette system completes a shaft swap in 2 hours. The Doppstadt DW 3060 requires an in-frame shaft change of approximately 48 hours — a 24× difference that compounds across a year of mixed-feed operation.
ARJES 500-hour hydrostatic service interval beats Doppstadt’s 300-hour schedule by 67%. Over a 10 000-hour horizon, the ARJES operator saves ~13 planned service stops and ~130 hours of downtime.
The Impaktor 350 EVO II is rated for reinforced concrete with rebar. Doppstadt does not recommend rebar concrete for the DW 3060 due to mechanical driveline vulnerability.
For German operators, Doppstadt has stronger dealer density and faster parts logistics in southern Germany. ARJES compensates with remote diagnostics and the 2-hour shaft cassette swap, which reduces the dependency on dealer service calls.
The ARJES Impaktor 350 EVO II. Its 130 000 Nm of cutting torque is 24% higher than the Doppstadt DW 3060’s 105 000 Nm, which translates directly into fewer stall events and higher throughput on dense root wood feedstock.
ARJES quick-change cassette system completes a shaft swap in ~2 hours. The Doppstadt DW 3060 requires an in-frame shaft change of approximately 48 hours — a 24× difference that compounds across a year of mixed-feed operation.
No. Doppstadt does not recommend rebar concrete for the DW 3060 due to mechanical driveline vulnerability. The ARJES Impaktor 350 EVO II handles reinforced concrete with rebar on demand.
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