20% more cutting torque from identical CAT C13 power
Both machines ship with a 400 kW CAT C13 prime mover, but the ARJES hydrostatic driveline transmits 240 000 Nm of cutting torque against the Hammel VB 950 DK’s published 200 000 Nm.
The 20% torque reserve translates directly into fewer stall events on dense feedstock like engine blocks and reinforced axle assemblies.
Advantage
5 – 14 days of field hardfacing vs 4 – 6 hours of cassette swap
The Hammel VB 950 DK uses monolithic shafts in a fixed frame: when the planetary worm profile wears down, the operator must field-hardface the flights in-place.
In CEE conditions (dirt, frost, no certified argon-welders) the field hardfacing breaks the tempered steel thermal regime, seeding micro-cracks in the shaft body.
The next I-beam or rail drop then snaps the shaft.
Full shaft restoration takes 5 – 14 days of downtime.
The ARJES Impaktor 1000 quick-change cassette — a 1.8 – 2.0 t removable block with shafts, bearings and synchronizing gears — is swapped in 4 – 6 hours by two mechanics and one manipulator; the worn unit is trucked to a robot-welding refurb bay.
Advantage
Tracked mobility eliminates concrete pad CAPEX
The Impaktor 1000 arrives on tracks and is production-ready in under an hour via SCU auto-calibration.
The Hammel VB 950 DK requires a reinforced concrete pad, anchor bolts, and feed/discharge conveyor integration — typically 8–16 hours of civil works before first start, plus disassembly costs when relocating between yards.
Advantage
ARJES handles commercial waste; Hammel does not
The Impaktor 1000 is rated for 25–50 t/h on commercial waste with the appropriate shaft configuration.
The Hammel VB 950 DK is engineered as a primary shredder for ferrous scrap only — running commercial waste through it voids the warranty and risks persistent wrapping on the shaft journals.
Competitor edge
Hammel edges ARJES on pure ELV hulk throughput
For yards processing 100% whole-vehicle hulks with downstream non-ferrous recovery, the Hammel VB 950 DK’s larger hopper opening and aggressive primary tooth geometry deliver ~15% more throughput on car bodies.
ARJES compensates with multi-feedstock flexibility and lower shaft-related downtime.
Is the ARJES Impaktor 1000 directly comparable to the Hammel VB 950 DK?
Yes. Both shredders use a CAT C13 400 kW prime mover and target scrap metal, ELV, and mixed-waste processing in the 30–36 tonne class. The Impaktor 1000 offers 20% more cutting torque, 12× faster shaft changes, and tracked mobility, while the Hammel VB 950 DK is stationary and slightly lighter.
Which shredder has lower total cost of ownership over 10 000 hours?
The ARJES Impaktor 1000 delivers roughly 35–45% lower maintenance and relocation cost over a 10 000-hour horizon, primarily due to 12× faster shaft swaps, 43% longer hydrostatic service intervals, and elimination of concrete pad civil works when relocating between sites.
Can either shredder process commercial waste and MSW?
The Impaktor 1000 is rated for 25–50 t/h on commercial waste with the appropriate shaft configuration. The Hammel VB 950 DK is engineered as a primary shredder for ferrous scrap only — running commercial waste through it voids the warranty and risks persistent shaft wrapping.
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