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Woodworking Machines > Shredders > Robust REUSER SD450 Wood Shredder
Robust REUSER SD450 wood shredder in green and dark grey, with a large hopper and branded logo on the front panel.
Close-up of rows of triangular carbide cutting teeth mounted on the steel rotor shaft of a wood shredder
Close-up of a green Robust REUSER SD450 wood shredder showing a hexagonal-patterned drum and cutting mechanism
A large pile of unprocessed timber offcuts and wooden planks of varying sizes scattered loosely together
A hand holding a palmful of pale wood shavings and chippings above a large pile of the same material.
  • Robust REUSER SD450 wood shredder in green and dark grey, with a large hopper and branded logo on the front panel.
  • Close-up of rows of triangular carbide cutting teeth mounted on the steel rotor shaft of a wood shredder
  • Close-up of a green Robust REUSER SD450 wood shredder showing a hexagonal-patterned drum and cutting mechanism
  • A large pile of unprocessed timber offcuts and wooden planks of varying sizes scattered loosely together
  • A hand holding a palmful of pale wood shavings and chippings above a large pile of the same material.

    Robust REUSER SD450 Wood Shredder

    Robust
    A compact, fully automatic shredder for workshops handling mixed waste — board materials, offcuts, veneer, cardboard, and light plastics processed through one machine without a dedicated operator.

    Typically chosen by

    • Workshops producing mixed waste streams who need one machine to handle board materials, offcuts, and packaging without constant operator intervention
    • Businesses looking to reduce waste volume and disposal costs by shredding in-house rather than paying for skip or collection services
    • Operations where energy consumption and straightforward installation are a concern, and where a simple plug-in setup with minimal ongoing maintenance is a priority
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    Key specification considerations

    Throughput
    Approx. 0.5–1.5 m³/h
    Output rate varies with material type and the sieve diameter selected — denser or harder materials will sit toward the lower end of this range.
    Motor Power
    11 / 15 kW
    Available in two motor sizes; either option requires a 3-phase supply — confirm your site's available capacity with an electrician before ordering.
    Feed Opening
    620 × 430 mm
    This is the charging hole dimension — allow adequate clear space above and around the hopper for loading and safe operator access.
    Machine Weight
    920 kg
    At 920 kg, floor loading should be checked before installation — consult a structural engineer if you are siting this on an upper floor or a lightweight mezzanine.
    See full specifications
    SpecificationValueNotes
    Machine Model
    REUSER SD450
    Manufacturer
    Robust
    Material Compatibility
    Wood, MDF, particle board, veneer, cardboard, plastics
    Operation
    Fully automatic
    Fully automatic operation means the machine manages feed rate and reversal cycles without a dedicated operator — suitable where staff have other tasks to perform alongside shredding.
    Motor Power (kW)
    11 / 15 kW
    Either motor option requires a 3-phase electrical supply — confirm available capacity with an electrician before specifying.
    Motor Start System
    Star/triangle (star-delta)
    Star-delta starting reduces the initial current surge on startup — important where your electrical supply has limited capacity; confirm your supply with an electrician before ordering.
    Rotor Diameter
    160 mm
    Rotor Speed
    140 rpm
    Number of Knives
    15
    Knife Type
    Hardened, 4 cutting edges per knife
    Four usable edges per knife means you can index or rotate knives before replacement, reducing consumable costs compared to single-edge designs.
    Sieve Material
    HARDOX wear-resistant steel
    HARDOX is a wear-resistant steel grade — a harder sieve extends service intervals and maintains consistent output particle size over time.
    Sieve Hole Diameter
    10–50 mm (selectable)
    The sieve diameter controls the maximum output particle size — a smaller sieve produces finer material but will reduce throughput rate.
    Throughput / Output Rate
    Approx. 0.5–1.5 m³/h
    Actual throughput depends on material type and the sieve diameter fitted — confirm with IWM if you need to size extraction or downstream handling equipment.
    Feed Opening (Charging Hole)
    620 × 430 mm
    Allow adequate clear space above and around the hopper for loading and safe operator access.
    Extraction Connector Diameter
    152 mm
    A minimum extraction airspeed of 20 m/s is required at this connector — factor this into your extraction system design.
    Crushing Chamber Design
    No mechanical obstacles — designed to minimise blockages
    An unobstructed crushing chamber reduces the likelihood of jams when processing irregular or mixed loads.
    Noise Level
    Described as extremely quiet in operation — contact IWM for measured dB data
    Electrical Supply
    3-phase required — contact IWM to confirm amperage for your chosen motor option
    Machine Dimensions (mm)
    Contact IWM for full footprint dimensions
    Allow additional clearance beyond the machine footprint for feed access, extraction ducting, and operator movement on all sides.
    Machine Weight
    920 kg
    Floor loading should be checked before installation — consult a structural engineer if siting on an upper floor or lightweight mezzanine.
    Installation
    Plug-in and start
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    Is this the right
    machine for you?

    Choose the Robust REUSER SD450 Wood Shredder if...

    • You need to shred a genuinely mixed waste stream — not just clean timber offcuts, but board materials, veneer, cardboard, and light plastics within the same machine
    • You want fully automatic operation so the shredder can run alongside other workshop activity without a dedicated operator managing it
    • You process enough waste to justify a mid-range industrial shredder, but your volumes do not yet require the larger capacity of the SD600 or SD700
    • Low running costs and straightforward maintenance are important — four-edge knives and HARDOX sieve components are designed to extend service intervals

    Consider an alternate model if...

    • Your waste volumes are higher and throughput is a bottleneck — the Robust REUSER SD600 or SD700 offer larger capacity for more demanding operations
    • Your waste stream is predominantly clean, solid timber offcuts with no board or mixed materials — the Robust SD90 or SD90 XL may be more appropriately specified and more cost-effective
    • You need a machine for low-volume, laboratory, or product-testing use — the Robust Lab SD450 is designed for that environment
    • Your available floor space or electrical supply is limited — talk to us about the SD90 range before ruling out the SD450 on those grounds
    Still not sure? We're happy to help
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    Ready when you are

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    workshop's output?

    Book a specification call with one of our engineers. Thirty minutes, no obligation, plain English advice on what would actually work on your floor.

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