Programmatic Comparison · Engineering Brief
Technical comparison of the ARJES Impaktor 350 EVO II and Lindner Utrimat 7000 shredders — drive power, throughput on waste wood and RDF, service intervals, and TCO.
| Spec | ARJES Impaktor 350 EVO II | Lindner Utrimat 7000 |
|---|---|---|
| Drive concept | Dual-shaft asynchronous low-speed hydrostatic | Single-shaft high-speed mechanical |
| Engine | Volvo Penta TAD 583 VE (Stage V) | Caterpillar C7.1 (Stage V) |
| Drive power (kW) | 177 | 180 |
| Drive power (HP) | 238 | 241 |
| Operating weight (kg) | 21 000 | 19 000 |
| Cutting torque (Nm) | 130 000 | Not published (high-speed drum) |
| Shaft speed (rpm) | 11–35 (variable, low-speed) | 180–260 (high-speed drum) |
| Hydrostatic service interval (hrs) | 500 | 250 |
| Shaft cassette swap time (hrs) | 2 (quick-change) | 24 (rotor removal + re-tooth) |
| Operating noise (dB(A) @ 1m) | < 82 | < 95 |
| Material | ARJES Impaktor 350 EVO II | Lindner Utrimat 7000 |
|---|---|---|
| Waste wood (A1–A3) | 11 – 25 t/h | 15 – 28 t/h |
| Refuse-derived fuel (RDF) | 12 – 22 t/h | 14 – 26 t/h |
| Green cuttings / biomass | 20 – 45 t/h | 14 – 24 t/h |
| Reinforced concrete (with rebar) | On-demand shred | Not compatible (high-speed drum) |
| Commercial waste | 10 – 22 t/h | 8 – 18 t/h |
On clean A1–A3 waste wood and RDF fluff, the Lindner Utrimat 7000’s high-speed drum delivers ~10% more throughput per hour. Operators whose feedstock is 100% clean wood may see marginal productivity gains.
Real-world waste wood contains nails, brackets, and concrete fragments. ARJES low-speed twin-shaft geometry tolerates steel and mineral contamination; the Lindner high-speed drum suffers knife destruction and rotor damage on the same feedstock.
The Impaktor 350 EVO II is rated for reinforced concrete with rebar. Running rebar concrete through the Utrimat 7000 is explicitly prohibited by Lindner — it will destroy the rotor within hours.
Low-speed twin-shaft geometry operates below 82 dB(A) at 1 metre, against the Utrimat 7000’s 95 dB(A). This is the difference between permitted daytime urban operation and noise-restricted siting requirements.
ARJES 500-hour hydrostatic service interval is double Lindner’s 250 hours. Shaft cassette swaps take 2 hours versus 24 hours for rotor removal and re-toothing — translating to ~95% less shaft-related downtime per year.
For 100% clean A1–A3 waste wood, the Lindner Utrimat 7000 offers marginally higher throughput. For mixed or contaminated waste wood (which is the real-world norm), the ARJES Impaktor 350 EVO II is the safer and more durable choice.
No. The Lindner high-speed drum is explicitly not rated for reinforced concrete or any feedstock with steel contamination. The ARJES Impaktor 350 EVO II handles reinforced concrete with rebar on demand.
The ARJES Impaktor 350 EVO II operates below 82 dB(A) at 1 metre thanks to its low-speed twin-shaft geometry. The Lindner Utrimat 7000’s high-speed drum emits ~95 dB(A), often triggering noise-restricted siting requirements.
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