Robust manufactures a focused range of industrial shredders built to process timber offcuts, pallets, packaging waste, and similar bulky wood materials down to a manageable chip or fragment size. Their SD and REUSER series cover a useful spread of throughput capacities, from compact workshop shredders up to heavier-duty models capable of handling significant daily volumes. We stock Robust shredders because waste reduction is a genuine operational priority for most timber and joinery businesses, and this equipment does the job reliably.
- Chosen By List:
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Joinery and timber workshops needing to reduce offcuts and wood waste to a manageable, consistent particle size
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Operations handling a mix of materials — wood, plastics, cardboard, and packaging — from a single machine rather than several
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Facilities where floor space is limited but throughput demands are moderate, and where tidy, contained output matters
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You need a single machine capable of handling a variety of materials — wood, plastics, cardboard, and packaging — rather than a wood-only shredder
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Your throughput requirement is moderate and up to 1.5 m³/hour is sufficient for your waste volumes
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Output particle size needs to vary by application, and the ability to swap between six sieve sizes is operationally important
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Floor space is constrained and you need a compact footprint without sacrificing rotor working length
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Your volumes consistently exceed 1.5 m³/hour — the Robust SD600 or SD700 would be better suited to higher-throughput operations
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You process exclusively wood waste and want a machine optimised for that material — the Robust REUSER SD450 Wood Shredder is purpose-built for wood and may offer better performance in that application
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Your material is lighter or lower-density and a smaller machine would suffice — the Robust SD90 or SD90 XL may be more appropriate and more economical to run
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Budget is the primary driver and a simpler, lower-powered shredder would meet your actual processing demands — talk to us and we will help you right-size the specification
- Key Specifications:
- Specification Name:
Capacity, Specification Value:
Up to 1.5 m³/hour, Specification Notes:
Output varies significantly depending on sieve size and material type — factor this in when sizing against your actual waste volumes.
- Specification Name:
Motor Power, Specification Value:
15 kW, Specification Notes:
Requires a 400V three-phase supply with a minimum 32A fuse — confirm your site supply before ordering.
- Specification Name:
Feed Hopper Opening, Specification Value:
620 × 430 mm
- Specification Name:
Sieve Sizes, Specification Value:
10 / 12 / 15 / 20 / 30 / 40 mm, Specification Notes:
Four sieves are included as standard; confirm with IWM which sizes are supplied and which are optional extras.
- Full Specifications:
- Specification Name:
Motor Power, Specification Value:
15 kW, Specification Notes:
Requires a 400V three-phase supply with a minimum 32A fuse — confirm your site supply before ordering.
- Specification Name:
Voltage, Specification Value:
400 V
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Frequency, Specification Value:
50 Hz
- Specification Name:
Fuses, Specification Value:
Min. 32 A
- Specification Name:
Number of Rotors, Specification Value:
1
- Specification Name:
Rotor Diameter, Specification Value:
160 mm
- Specification Name:
Rotor Working Length, Specification Value:
450 mm
- Specification Name:
Rotor Speed, Specification Value:
470 rpm
- Specification Name:
Number of Cutting Blades, Specification Value:
15
- Specification Name:
Feed Hopper Opening, Specification Value:
620 × 430 mm
- Specification Name:
Sieve Sizes Available, Specification Value:
10 / 12 / 15 / 20 / 30 / 40 mm, Specification Notes:
Smaller sieves produce finer output suitable for briquetting; larger sieves increase throughput but yield coarser material.
- Specification Name:
Capacity, Specification Value:
Up to 1.5 m³/hour, Specification Notes:
Throughput depends on sieve size and material — actual rates in mixed-material operations will vary.
- Specification Name:
Suitable Materials, Specification Value:
Waste wood, plastic, paper & cardboard, packaging, agricultural waste, electronic cables
- Specification Name:
Dimensions (L × W × H), Specification Value:
949 × 1083 × 2109 mm, Specification Notes:
Allow additional clearance around all sides for feed access, extraction connection, and maintenance — the 2,109 mm height should be checked against your ceiling and any extraction ductwork.
- Specification Name:
Weight, Specification Value:
920 kg, Specification Notes:
At this weight, floor loading capacity should be checked with a structural engineer before installation.
- Specification Name:
Control System, Specification Value:
Unitronics® PLC
- Specification Name:
Remote Access Option, Specification Value:
Optional — Resmart™ intelligent control system, Specification Notes:
Remote access allows fault monitoring and process adjustment without being at the machine, which can be useful in unmanned or partially attended processing areas.
- Specification Name:
Output Container, Specification Value:
Stainless steel
- Specification Name:
Cable Length, Specification Value:
10 m, Specification Notes:
The 10-metre cable gives reasonable flexibility in positioning the machine relative to your electrical supply point.
- Specification Name:
Hopper Insulation, Specification Value:
Yes — insulated hopper for reduced noise during feed, Specification Notes:
The insulated hopper dampens impact noise when loading material, which can meaningfully reduce operator noise exposure over a shift.
- Specification Name:
Hopper Safety Cover, Specification Value:
Yes
- Specification Name:
Warranty, Specification Value:
4 years or 1,500 hours, Specification Notes:
The dual warranty trigger means high-use operations may reach the hour limit before the time limit — factor your expected annual hours into this.
- Specification Name:
Manufacturer, Specification Value:
Robust d.o.o.
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A compact, single-rotor shredder that handles wood offcuts, plastics, cardboard, and mixed packaging waste in one machine — practical for workshops where floor space is tight and waste streams are varied.
- Chosen By List:
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Workshops producing mixed waste streams who need one machine to handle board materials, offcuts, and packaging without constant operator intervention
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Businesses looking to reduce waste volume and disposal costs by shredding in-house rather than paying for skip or collection services
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Operations where energy consumption and straightforward installation are a concern, and where a simple plug-in setup with minimal ongoing maintenance is a priority
- This Product List:
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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
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You want fully automatic operation so the shredder can run alongside other workshop activity without a dedicated operator managing it
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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
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Low running costs and straightforward maintenance are important — four-edge knives and HARDOX sieve components are designed to extend service intervals
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Your waste volumes are higher and throughput is a bottleneck — the Robust REUSER SD600 or SD700 offer larger capacity for more demanding operations
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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
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You need a machine for low-volume, laboratory, or product-testing use — the Robust Lab SD450 is designed for that environment
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Your available floor space or electrical supply is limited — talk to us about the SD90 range before ruling out the SD450 on those grounds
- Key Specifications:
- Specification Name:
Throughput, Specification Value:
Approx. 0.5–1.5 m³/h, Specification Notes:
Output rate varies with material type and the sieve diameter selected — denser or harder materials will sit toward the lower end of this range.
- Specification Name:
Motor Power, Specification Value:
11 / 15 kW, Specification Notes:
Available in two motor sizes; either option requires a 3-phase supply — confirm your site's available capacity with an electrician before ordering.
- Specification Name:
Feed Opening, Specification Value:
620 × 430 mm, Specification Notes:
This is the charging hole dimension — allow adequate clear space above and around the hopper for loading and safe operator access.
- Specification Name:
Machine Weight, Specification Value:
920 kg, Specification Notes:
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.
- Full Specifications:
- Specification Name:
Machine Model, Specification Value:
REUSER SD450
- Specification Name:
Manufacturer, Specification Value:
Robust
- Specification Name:
Material Compatibility, Specification Value:
Wood, MDF, particle board, veneer, cardboard, plastics
- Specification Name:
Operation, Specification Value:
Fully automatic, Specification Notes:
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.
- Specification Name:
Motor Power (kW), Specification Value:
11 / 15 kW, Specification Notes:
Either motor option requires a 3-phase electrical supply — confirm available capacity with an electrician before specifying.
- Specification Name:
Motor Start System, Specification Value:
Star/triangle (star-delta), Specification Notes:
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.
- Specification Name:
Rotor Diameter, Specification Value:
160 mm
- Specification Name:
Rotor Speed, Specification Value:
140 rpm
- Specification Name:
Number of Knives, Specification Value:
15
- Specification Name:
Knife Type, Specification Value:
Hardened, 4 cutting edges per knife, Specification Notes:
Four usable edges per knife means you can index or rotate knives before replacement, reducing consumable costs compared to single-edge designs.
- Specification Name:
Sieve Material, Specification Value:
HARDOX wear-resistant steel, Specification Notes:
HARDOX is a wear-resistant steel grade — a harder sieve extends service intervals and maintains consistent output particle size over time.
- Specification Name:
Sieve Hole Diameter, Specification Value:
10–50 mm (selectable), Specification Notes:
The sieve diameter controls the maximum output particle size — a smaller sieve produces finer material but will reduce throughput rate.
- Specification Name:
Throughput / Output Rate, Specification Value:
Approx. 0.5–1.5 m³/h, Specification Notes:
Actual throughput depends on material type and the sieve diameter fitted — confirm with IWM if you need to size extraction or downstream handling equipment.
- Specification Name:
Feed Opening (Charging Hole), Specification Value:
620 × 430 mm, Specification Notes:
Allow adequate clear space above and around the hopper for loading and safe operator access.
- Specification Name:
Extraction Connector Diameter, Specification Value:
152 mm, Specification Notes:
A minimum extraction airspeed of 20 m/s is required at this connector — factor this into your extraction system design.
- Specification Name:
Crushing Chamber Design, Specification Value:
No mechanical obstacles — designed to minimise blockages, Specification Notes:
An unobstructed crushing chamber reduces the likelihood of jams when processing irregular or mixed loads.
- Specification Name:
Noise Level, Specification Value:
Described as extremely quiet in operation — contact IWM for measured dB data
- Specification Name:
Electrical Supply, Specification Value:
3-phase required — contact IWM to confirm amperage for your chosen motor option
- Specification Name:
Machine Dimensions (mm), Specification Value:
Contact IWM for full footprint dimensions, Specification Notes:
Allow additional clearance beyond the machine footprint for feed access, extraction ducting, and operator movement on all sides.
- Specification Name:
Machine Weight, Specification Value:
920 kg, Specification Notes:
Floor loading should be checked before installation — consult a structural engineer if siting on an upper floor or lightweight mezzanine.
- Specification Name:
Installation, Specification Value:
Plug-in and start
- Product Gallery:
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- Video Gallery:
- Video Link:
https://www.youtube.com/watch?v=4OjsAtuW38I
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.
- Chosen By List:
- List Item:
Timber processors and pallet recyclers handling large or irregular wood waste that needs reducing to a defined particle size
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Joinery and manufacturing workshops generating significant off-cut and reject volumes who need a robust, low-supervision shredding solution
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Waste contractors and biomass fuel producers who need repeatable output granulation across varied wood feedstocks
- This Product List:
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You are processing bulky, irregular or mixed wood waste at volumes that would overwhelm a smaller single-shaft machine, and need a robust hydraulic pusher to manage infeed consistently
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Output particle size matters to your operation — for example, you are producing biomass chip to a specification, or separating material for reuse — and you need the flexibility of interchangeable screens
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Knife longevity and reduced downtime are a priority: the four-edge knife design and HARDOX sieve are worth specifying when you are running the machine hard across shifts
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You need a machine that can operate with minimal supervision and handle overload situations automatically via the BOVER_BASIC control system
- Alternate List:
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Your volumes are lower or your waste stream is lighter and less variable — the Robust REUSER SD450 Wood Shredder is likely a better match and will cost less to run and maintain
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You need a higher-capacity machine for a larger operation — the Robust REUSER SD700 Shredder steps up in throughput and should be discussed if you are regularly pushing the SD600 to its ceiling
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You are processing smaller, more uniform offcuts rather than bulky or heterogeneous wood waste — the Robust SD90 or SD90 XL may be more appropriately sized and simpler to operate
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Space is a significant constraint — at approximately 1,880 mm long and 1,250 kg, this machine requires a considered installation; confirm your floor loading and clearance requirements before ruling out a smaller model
- Key Specifications:
- Specification Name:
Throughput, Specification Value:
Up to ~4 m³/h, Specification Notes:
Actual throughput will vary with material density, moisture content, and screen size selected — treat this as a ceiling figure for planning purposes.
- Specification Name:
Motor Power, Specification Value:
15 kW or 18.5 kW, Specification Notes:
Both options require a three-phase supply; confirm available amperage and whether your incoming supply can support the star/delta start sequence before ordering.
- Specification Name:
Output Granulation, Specification Value:
10 mm – ~30 mm (screen dependent), Specification Notes:
Screen hole size determines output particle size and directly affects throughput rate — smaller screens reduce capacity, so specify this based on your intended end use.
- Specification Name:
Machine Weight, Specification Value:
~1,250 kg, Specification Notes:
Above 500 kg — floor loading capacity should be confirmed with your structural engineer or building surveyor before installation.
- Full Specifications:
- Specification Name:
Motor Power, Specification Value:
15 kW or 18.5 kW, Specification Notes:
Both options require a three-phase supply; confirm available amperage and whether your incoming supply can support the star/delta start sequence before ordering.
- Specification Name:
Drive System, Specification Value:
Electric motor with reduction gear and belt transmission
- Specification Name:
Motor Start Method, Specification Value:
Star/delta (star/triangle) system, Specification Notes:
Star/delta starting reduces inrush current at start-up, which can be important if your site has supply capacity or tariff constraints around peak draw.
- Specification Name:
Control System, Specification Value:
BOVER_BASIC intelligent control system, Specification Notes:
Handles automated cycle control and overload protection — if the rotor stalls under load, the system reverses and re-attempts, reducing the need for manual intervention during a jam.
- Specification Name:
Rotor Length, Specification Value:
~550 mm
- Specification Name:
Rotor Diameter, Specification Value:
~222 mm
- Specification Name:
Number of Cutting Knives, Specification Value:
14 knives
- Specification Name:
Knife Design, Specification Value:
Hardened, four cutting edges per knife, Specification Notes:
Four-edge knives can be indexed three times before replacement, which reduces consumable cost and downtime compared to single-edge designs.
- Specification Name:
Cleaning Knives, Specification Value:
Hardened cleaning knives included
- Specification Name:
Counter-Knives / Cutting Racks, Specification Value:
Hardened cutting racks included
- Specification Name:
Sieve Material, Specification Value:
HARDOX wear-resistant steel, Specification Notes:
HARDOX is a recognised wear-plate specification — relevant if you are processing abrasive or contaminated wood waste where standard sieves would wear prematurely.
- Specification Name:
Screen / Hole Size, Specification Value:
10 mm – ~30 mm (configuration dependent), Specification Notes:
Screen size must be specified at order — discuss your end-use requirement (e.g. biomass chip spec, bedding material, or landfill diversion) with IWM before confirming.
- Specification Name:
Throughput, Specification Value:
Up to ~4 m³/h, Specification Notes:
Actual throughput will vary with material density, moisture content, and screen size selected — treat this as a ceiling figure for planning purposes.
- Specification Name:
Feed / Hopper Opening, Specification Value:
939 mm × 567 mm, Specification Notes:
Hopper opening determines the maximum cross-section of material you can feed in a single pass — oversized pieces will need pre-breaking before loading.
- Specification Name:
Hydraulic Feed Unit, Specification Value:
Hydraulic pressure / pusher unit included, Specification Notes:
The hydraulic pusher forces material into the rotor zone, reducing the need for manual feeding and allowing the machine to handle bulky or springy waste more consistently.
- Specification Name:
Machine Dimensions (H × W × L), Specification Value:
~1,670 × 1,120 × 1,880 mm, Specification Notes:
Allow additional clearance on all sides for extraction ducting, infeed access, and maintenance — this footprint alone is not sufficient for installation planning.
- Specification Name:
Weight, Specification Value:
~1,250 kg, Specification Notes:
Above 500 kg — floor loading capacity should be confirmed with your structural engineer or building surveyor before installation.
- Specification Name:
Noise Level, Specification Value:
Not published — contact IWM, Specification Notes:
A confirmed noise level figure is needed to assess whether acoustic treatment or hearing protection zoning will be required in your facility; ask IWM for the test data when specifying.
- Specification Name:
Certifications / Compliance, Specification Value:
Contact IWM for current documentation, Specification Notes:
Confirm CE marking and any relevant machinery directive compliance with IWM at point of order, particularly if the machine is being integrated into a wider extraction or handling system.
- Product Gallery:
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- Video Gallery:
- Video Link:
https://www.youtube.com/watch?v=gYN9opYc_A4
- Video Link:
https://www.youtube.com/watch?v=oC4RWEiKkoM
- Video Link:
https://www.youtube.com/watch?v=a2arlmyfj2o
A single-rotor hydraulic shredder built for workshops and recyclers that need consistent, screenable output from bulky or mixed wood waste — with minimal operator intervention once running.
- Chosen By List:
- List Item:
Timber processors and sawmills generating significant volumes of offcuts, slabs, or dimensional waste that need reducing to a consistent fraction
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Joinery and panel shops looking to reclaim floor space and reduce skip costs by shredding bulky wood waste in-house
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Waste and biomass contractors who need a robust, serviceable machine capable of handling mixed or contaminated wood streams
- This Product List:
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Your waste volumes have outgrown a mid-range shredder and you need the additional capacity and robustness of the SD700 over the SD600
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You are processing dense, knotty, or irregular timber waste where a hydraulic feed system and heavy-duty cutting geometry will provide more consistent results
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Knife and wear-part running costs are a concern — the four-edge knife design and HARDOX sieve make this a more economical machine to maintain at high utilisation
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You need a machine that can be adjusted and serviced in-house, with a straightforward control system that your operators can manage without specialist training
- Alternate List:
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Your volumes are more modest — the Robust REUSER SD600 or REUSER SD450 Wood Shredder may be appropriately sized and represent a lower capital cost for lighter-duty applications
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You are shredding relatively clean, consistent timber offcuts in a smaller workshop — the Robust SD90 XL or SD90 Shredder may be sufficient and will take up considerably less floor space
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You need shredding capability for evaluation, sampling, or low-volume trials — the Robust Lab SD450 Shredder is designed specifically for that purpose
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Budget is the primary driver and your feed material is not particularly abrasive or contaminated — talk to us about whether a lighter-spec machine would serve you adequately
- Key Specifications:
- Specification Name:
Throughput, Specification Value:
Approx. 3–5 m³/h, Specification Notes:
Actual output depends on material type and the sieve aperture selected — denser or wetter timber will sit toward the lower end of this range.
- Specification Name:
Cutting System, Specification Value:
Hardened knives — four cutting edges per knife, Specification Notes:
Four-edge knives can be rotated before replacement, significantly reducing knife running costs over time.
- Specification Name:
Sieve Material, Specification Value:
HARDOX wear-resistant steel, Specification Notes:
HARDOX is a recognised abrasion-resistant steel grade; a HARDOX sieve extends service intervals compared to standard steel alternatives.
- Specification Name:
Control System, Specification Value:
BOVER_BASIC intelligent control with star/triangle motor start, Specification Notes:
Star/triangle start-up reduces inrush current at motor start, which may affect your electrical supply sizing — confirm with your electrician before installation.
- Full Specifications:
- Specification Name:
Model, Specification Value:
REUSER SD700
- Specification Name:
Manufacturer, Specification Value:
Robust
- Specification Name:
Control System, Specification Value:
BOVER_BASIC intelligent control system
- Specification Name:
Drive System, Specification Value:
Electric motor with reduction gear and belt transmission
- Specification Name:
Hydraulic System, Specification Value:
Hydraulic pressure unit included, Specification Notes:
The hydraulic ram feeds material into the cutting chamber under controlled pressure, helping to maintain consistent throughput with irregular or bulky feed material.
- Specification Name:
Filling Hopper, Specification Value:
Included
- Specification Name:
Filling Hole (L × W), Specification Value:
1,445 × 1,345 mm, Specification Notes:
This is the clear aperture of the feed opening — allow sufficient overhead clearance above this height for loading by excavator, forklift, or lift arm.
- Specification Name:
Knife Specification, Specification Value:
Hardened knives with four cutting edges — extended service life, Specification Notes:
Four-edge knives can be indexed rather than replaced when one edge dulls, lowering consumable costs.
- Specification Name:
Cleaning Knives, Specification Value:
Hardened cleaning knives included
- Specification Name:
Cutting Racks, Specification Value:
Hardened cutting racks
- Specification Name:
Sieve, Specification Value:
HARDOX sieve, Specification Notes:
HARDOX construction extends sieve life in abrasive or contaminated wood waste applications.
- Specification Name:
Available Sieve Sizes (hole diameter), Specification Value:
10–50 mm, Specification Notes:
Sieve aperture directly controls output fraction size — a smaller aperture gives a finer chip suitable for briquetting; a larger aperture maximises throughput rate.
- Specification Name:
Motor Start Method, Specification Value:
Star/triangle (soft-start), Specification Notes:
Confirm your site's electrical supply capacity with your installer before ordering.
- Specification Name:
Motor Power, Specification Value:
15 / 18.5 / 22 kW (options), Specification Notes:
Three motor sizes are available — the appropriate choice depends on your throughput requirements and site electrical capacity; discuss with IWM at the point of specification.
- Specification Name:
Minimum Fuse Rating, Specification Value:
50 A, Specification Notes:
Verify this requirement with your site electrician before installation; the star/triangle start method reduces peak demand but a dedicated circuit is still required.
- Specification Name:
Throughput / Output Rate, Specification Value:
Approx. 3–5 m³/h, Specification Notes:
Output is dependent on material density, moisture content, and selected sieve diameter — confirm expected throughput for your specific waste stream with IWM.
- Specification Name:
Rotor Working Length, Specification Value:
650 mm
- Specification Name:
Rotor Diameter, Specification Value:
270 mm
- Specification Name:
Machine Dimensions (L × W × H), Specification Value:
1,920 × 1,550 × 1,790 mm, Specification Notes:
Allow additional clearance beyond these footprint dimensions for extraction ducting, material infeed, and operator access — a minimum of 1 m clearance on all working sides is advisable.
- Specification Name:
Machine Weight, Specification Value:
1,750 kg, Specification Notes:
At this weight, floor loading capacity should be checked before installation, particularly in older timber-framed or mezzanine-level premises.
- Specification Name:
Noise Level, Specification Value:
Consult IWM, Specification Notes:
Noise output varies with motor size, material type, and sieve selection — ask IWM for guidance on acoustic treatment or hearing protection requirements for your specific configuration.
- Product Gallery:
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- Video Gallery:
- Video Link:
https://www.youtube.com/watch?v=vDcyRM_jlCk
A hydraulic-fed, single-rotor shredder built for workshops and processors that need to reduce significant volumes of wood waste to a consistent, usable fraction day in, day out. Sized above the SD600, it suits operations where throughput, wear-part economy, and straightforward servicing all matter.
- Chosen By List:
- List Item:
Joinery and timber workshops producing consistent offcut and panel waste who need a reliable, repeatable shredding process
- List Item:
Operations considering downstream briquetting or biomass use, where consistent chip or shred size matters
- List Item:
Businesses wanting a machine with an intelligent control system and hydraulic feed to reduce operator intervention
- This Product List:
- List Item:
Your waste volumes suit a compact, single-rotor shredder and you do not need the higher throughput of larger models in the range
- List Item:
You want a machine with an intelligent control system and hydraulic feed as standard, with the option to upgrade as your operation grows
- List Item:
You are processing standard joinery or panel offcuts rather than bulky, oversized timber sections
- List Item:
You want the flexibility to add a pre-shredder (P100 or P130) later if your feed material becomes less consistent
- Alternate List:
- List Item:
Your waste volumes are significantly higher — the Robust SD450, SD600, or SD700 are designed for larger-scale continuous throughput
- List Item:
You are processing particularly bulky or large-dimensioned timber and need a wider feed opening from the outset — the Robust SD90 XL offers a larger filling hole (2,030 × 1,565 mm) within the same machine family
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Your throughput and material requirements are unclear — talk to us before specifying, as the right machine in the range depends heavily on your actual waste profile
- Key Specifications:
- Specification Name:
Motor Power, Specification Value:
18.5 kW or 22 kW, Specification Notes:
Two motor options are available — discuss your duty cycle and shift pattern with us to determine which suits your load.
- Specification Name:
Throughput, Specification Value:
4–7 m³/h, Specification Notes:
Output varies with material type and the sieve aperture fitted — finer sieves reduce throughput rate.
- Specification Name:
Knife Configuration, Specification Value:
38 hardened knives, four cutting edges each, Specification Notes:
Four cutting edges per knife means the blade can be rotated rather than replaced each time it dulls, extending usable service life and reducing consumable costs.
- Specification Name:
Machine Weight, Specification Value:
2,050 kg (machine only), Specification Notes:
At over 2,000 kg, floor loading should be checked before installation — consult your structural engineer if siting on anything other than a ground-level concrete slab.
- Full Specifications:
- Specification Name:
Control System, Specification Value:
BOVER BASIC intelligent control system (BOVER PREMIUM available as upgrade), Specification Notes:
The intelligent control system manages motor start-up and operational sequencing automatically, reducing operator error and wear on the drivetrain.
- Specification Name:
Motor Start-Up, Specification Value:
Star/triangle system, Specification Notes:
Star/triangle start-up reduces the inrush current when the motor starts, which can be important for workshops on a constrained electrical supply.
- Specification Name:
Drive System, Specification Value:
Electric motor with reduction gear and belt transmission
- Specification Name:
Feed System, Specification Value:
Filling hopper with hydraulic pressure unit (larger hopper available as upgrade)
- Specification Name:
Motor Power (kW), Specification Value:
18.5 kW or 22 kW, Specification Notes:
Two motor options are available — discuss your duty cycle and shift pattern with us to determine which suits your load.
- Specification Name:
Electrical Supply, Specification Value:
Three-phase — confirm exact supply requirements with IWM before ordering, Specification Notes:
At 18.5–22 kW this machine requires a three-phase supply; verify available amperage and cable run with your electrician before specifying.
- Specification Name:
Throughput / Output, Specification Value:
4–7 m³/h (material and sieve aperture dependent), Specification Notes:
Output varies with material type and the sieve aperture fitted — finer sieves reduce throughput rate.
- Specification Name:
Filling Hole (mm), Specification Value:
1,445 × 1,565
- Specification Name:
Rotor Working Length (mm), Specification Value:
870
- Specification Name:
Rotor Diameter (mm), Specification Value:
270
- Specification Name:
Number of Knives, Specification Value:
38
- Specification Name:
Sieve Hole Diameter (mm), Specification Value:
10–50 (selectable), Specification Notes:
Sieve aperture determines output particle size — specify the aperture that matches your downstream process when ordering.
- Specification Name:
Knife Type, Specification Value:
Hardened knives with four cutting edges, Specification Notes:
Four cutting edges per knife means the blade can be rotated rather than replaced each time it dulls, extending usable service life and reducing consumable costs.
- Specification Name:
Cleaning Knives, Specification Value:
Hardened cleaning knives
- Specification Name:
Cutting Racks, Specification Value:
Hardened cutting racks
- Specification Name:
Sieve Material, Specification Value:
HARDOX, Specification Notes:
HARDOX is a wear-resistant steel grade, which is relevant if you are processing harder or abrasive timber species that would degrade a standard sieve more quickly.
- Specification Name:
Machine Dimensions (mm), Specification Value:
2,000 × 1,600 × 1,780 (L × W × H), Specification Notes:
Allow additional clearance beyond the machine footprint for feed access, extraction ducting, and operator movement.
- Specification Name:
Machine Weight (kg), Specification Value:
2,050 (machine only) / 3,200 (SD90 + interface + P130 with hopper), Specification Notes:
At over 2,000 kg, floor loading should be checked before installation — consult your structural engineer if siting on anything other than a ground-level concrete slab.
- Specification Name:
Noise Level, Specification Value:
Contact IWM for confirmed figure, Specification Notes:
Noise output is not published in manufacturer specifications — talk to us before specifying if your site has acoustic constraints or if operators will be working in close proximity for extended periods.
- Specification Name:
Optional Upgrades, Specification Value:
BOVER PREMIUM control system; larger filling hopper; pre-shredder P100 or P130, Specification Notes:
The pre-shredder option is worth considering if your waste includes larger-dimensioned timber that would otherwise need manual reduction before feeding.
- Product Gallery:
- Image:
- Image:
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- Image:
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- Video Gallery:
- Video Link:
https://www.youtube.com/watch?v=YJI-AQA-Jag
A compact single-shaft shredder for joinery and timber workshops that need a repeatable, largely hands-off shredding process. Handles standard offcuts, panel waste, and pallets, with sieve-controlled output size to suit downstream briquetting or biomass use.
- Chosen By List:
- List Item:
Joinery and timber processing workshops that have outgrown smaller shredders and need a machine that keeps pace with production waste
- List Item:
Operations handling bulky or irregular offcuts that require a larger hopper and hydraulic feed control to process efficiently
- List Item:
Businesses looking to reduce waste haulage costs by shredding on-site to a consistent particle size for disposal or reuse
- This Product List:
- List Item:
Your waste volume has grown beyond what the standard Robust SD90 can handle comfortably in a shift
- List Item:
You regularly feed bulky or long timber offcuts and need the larger hopper opening the XL provides
- List Item:
You want a machine with an intelligent control system that can self-manage rotor load rather than requiring constant operator attention
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You anticipate future growth and want the option to add a pre-shredder (P150) or upgrade the control system without replacing the machine
- Alternate List:
- List Item:
Your waste volumes are modest or intermittent — the <a href="index.php?option=com_content&view=article&id=104&catid=30">Robust SD90</a> (standard) is the more proportionate choice and will cost less to run and maintain
- List Item:
You are processing very high volumes of mixed or large timber waste and need significantly greater throughput — the <a href="index.php?option=com_content&view=article&id=102&catid=30">Robust REUSER SD450 or SD600</a> may be more appropriate at that scale
- List Item:
You need a machine for a research, training, or low-volume environment — the <a href="index.php?option=com_content&view=article&id=99&catid=30">Robust Lab SD450</a> is specifically configured for lower-intensity use
- List Item:
Budget is the primary constraint and the XL specification exceeds what your current waste stream justifies — talk to us and we will help you right-size the machine
- Key Specifications:
- Specification Name:
Throughput Capacity, Specification Value:
5–8 m³/h, Specification Notes:
Output varies with material type and the sieve aperture selected — denser hardwoods or smaller sieve holes will sit toward the lower end of this range.
- Specification Name:
Motor Power, Specification Value:
18.5 / 22 / 30 kW (three options), Specification Notes:
All motor options require a three-phase supply; confirm your site's available amperage with your electrician before specifying the motor size.
- Specification Name:
Hydraulic Feed System, Specification Value:
Hydraulic pressure unit included, Specification Notes:
The hydraulic feed unit controls material pressure against the cutting rotor, reducing jams and allowing the machine to self-regulate through denser or irregular loads.
- Specification Name:
Sieve Material, Specification Value:
HARDOX wear-resistant steel, Specification Notes:
HARDOX is a wear-resistant steel — a sieve made from it will outlast standard steel sieves significantly in abrasive wood waste applications.
- Full Specifications:
- Specification Name:
Model, Specification Value:
Robust SD90 XL
- Specification Name:
Control System, Specification Value:
BOVER BASIC intelligent control system (BOVER PREMIUM available as upgrade), Specification Notes:
The intelligent control system monitors load and can reverse or pause the rotor automatically — reducing operator intervention and protecting the drive components.
- Specification Name:
Drive System, Specification Value:
Electric motor, reduction gear, and belt transmission
- Specification Name:
Motor Power, Specification Value:
18.5 / 22 / 30 kW (three options), Specification Notes:
Motor size is selected at point of order; discuss your duty cycle and shift pattern with us to ensure the right motor for your application.
- Specification Name:
Electrical Supply, Specification Value:
Three-phase (confirm site amperage with your electrician for the motor size specified), Specification Notes:
Amperage requirement varies depending on which motor option is selected — verify your site supply is adequate before ordering.
- Specification Name:
Motor Start-Up, Specification Value:
Star/triangle (star-delta) starting system, Specification Notes:
Star-delta starting reduces the inrush current at start-up, which matters if your site has limited electrical capacity or you are running other machinery on the same supply.
- Specification Name:
Hydraulic Unit, Specification Value:
Included
- Specification Name:
Hopper Opening, Specification Value:
2030 × 1565 mm, Specification Notes:
The XL's hopper opening is approximately 585 mm wider than the standard SD90 (1445 × 1565 mm), which is the key practical difference for workshops feeding longer or bulkier timber pieces.
- Specification Name:
Filling Hopper, Specification Value:
Standard (larger hopper available as upgrade)
- Specification Name:
Rotor Working Length, Specification Value:
870 mm
- Specification Name:
Rotor Diameter, Specification Value:
270 mm
- Specification Name:
Knife Configuration, Specification Value:
Hardened knives with four cutting edges, Specification Notes:
Four cutting edges per knife means each knife can be rotated three times before replacement is needed, reducing tooling costs over the machine's life.
- Specification Name:
Cleaning Knives, Specification Value:
Hardened cleaning knives included
- Specification Name:
Cutting Racks, Specification Value:
Hardened cutting racks
- Specification Name:
Sieve, Specification Value:
HARDOX sieve, Specification Notes:
HARDOX is a wear-resistant steel — a sieve made from it will outlast standard steel sieves significantly in abrasive wood waste applications.
- Specification Name:
Output Particle Size (Sieve Hole Diameter), Specification Value:
10–50 mm (sieve aperture selectable), Specification Notes:
The sieve aperture you select determines the output particle size — smaller holes give a finer chip suitable for biomass or briquetting, larger holes increase throughput.
- Specification Name:
Throughput / Capacity, Specification Value:
5–8 m³/h (material and sieve aperture dependent), Specification Notes:
Output varies with material density and moisture content; discuss your specific waste stream with us for a realistic throughput estimate.
- Specification Name:
Weight, Specification Value:
2,450 kg (machine only); 4,200 kg with interface cabinet and P150 pre-shredder, Specification Notes:
At 2,450 kg and above, floor loading capacity should be checked with a structural engineer before installation.
- Specification Name:
Overall Machine Dimensions (L × W × H), Specification Value:
Contact IWM — dimensions vary by configuration and are confirmed at point of order, Specification Notes:
Allow additional clearance on all sides for infeed access, extraction ducting, and safe operator movement around the machine.
- Specification Name:
Noise Level, Specification Value:
Contact IWM — noise data is confirmed at point of specification, Specification Notes:
Shredders of this class typically require acoustic consideration; discuss your installation environment with us, particularly if the machine is in or adjacent to an occupied workspace.
- Specification Name:
Operator Interface, Specification Value:
SPS wheeled cabinet with touchscreen
- Specification Name:
Optional Upgrades, Specification Value:
BOVER PREMIUM control system; larger filling hopper; pre-shredder P150, Specification Notes:
The P150 pre-shredder is worth considering if your waste stream includes large or unsorted timber pieces that would otherwise require manual breaking down before feeding.
- Product Gallery:
- Video Gallery:
- Video Link:
https://www.youtube.com/watch?v=TZlzU4Itic4
A step up from the standard SD90, the XL gives joinery and timber workshops a wider hopper opening and higher throughput capacity to keep pace with busier production lines — without moving to a much larger machine.
