Aperture Science Shredder

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The Aperture Science Shredder is a device made of spinning gears that destroy anything on impact. It appears in Portal 2, mostly during the co-op campaign. It appears during the single-player campaign when the player witnesses turrets being destroyed, and when Wheatley opens a wall to reveal one as the player moves toward it via Excursion Funnel.

Trivia

Wheatley refers this device as a "Spinny-blade-wall" as written in the subtitles.

Behind the scenes

The design is based on a industrial, two-roll, metal shredder.

List of appearances

Portal 2 (First appearance)

Technology
Aperture Science	1500 Megawatt Heavy Duty Super-Colliding Super Button • Advanced Knee Replacement • Aerial Faith Plate • Announcement System • ATLAS and P-body • Borealis • Core Input Receptacle • Crusher • Edgeless Safety Cube Receptacle • Edgeless Safety Cube • Emergency Intelligence Incinerator • Excursion Funnel • Frankenturret • Futbol (cut) • GLaDOS • Hard Light Bridge • High Energy Pellet • Jerry • Laser Field • Long Fall Boot • Material Emancipation Grill • Military Android • Mobility Gels: Conversion Gel / Propulsion Gel / Repulsion Gel • Multitasking Arm • Nanobot • Panel • Party Escort Bot • Personality Construct • Pipe Network • Pneumatic Diversity Vent • Cube Button • Radio • Reassembly Machine • Relaxation Vault • Robot Enrichment • Robot Worker • Scaling Cube • Security Camera • Shredder • Speaker System • Stasis Chamber • Sticking Gel (cut) • Switch • Teleportation • Thermal Discouragement Beam • Unstationary Scaffold • Victory Lift • Vital Apparatus Vent • Weighted Pivot Cube • Weighted Storage Cube • Wheatley
Black Mesa	Anti-Mass Spectrometer • Battery • Black Mesa Announcement System • Charger • Cleansuit • Delivery cart • Emergency flare (cut) • HEV Suit • Holographic Assistant • Long Jump Module • Medkit • The Mesa Times • MTM 8 • Oxygen Bottles (cut) • Powerup Bottles (cut) • Retinal scanner • Satellite Delivery Rocket • Security Card (cut) • Armor Vest and Helmet • Teleportation • Vehicles • Weapon Box • Weapons
Black Ops	Cloaking device • Weapons
Combine	Battery • Breencast • Charger • Citadel Core • Citadel • Barricade • Binoculars • Binoculars (cut) • Bunker • Camera • Cell • Combine Assassin tank (cut) • Combine Big Momma Pod (cut) • Confiscation Field • Dark Energy • Depot • Dispenser • Door lock • Door Tower (cut) • Dr. Breen's Private Reserve • Elevator • Emergency flare • Emitter • Energy Ball • Field Bridge • Force Field • Heavy Door • Heel Springs (cut) • Interface • Light • Medkit • Memory Replacement • Monitor • Overwatch Voice • Power Generator • Restrictor • Security Door • Smart Barrier • Supply Crate • Suppression Field • Teleportation • Television • The Terminal • Vehicles • Watchtower • Weapons • Vorti-Cell (cut)
Resistance	Borealis (cut) • Car battery • Communication • Antlion Detector • Dog • EMP Tool • Fire Extinguisher (cut) • Generator trailer • Drawbridge • Retinal scanner • Supply Crate • Teleportation • Television • Transponder • Vehicles • Weapons • White Forest rocket
Xen	Healing Shower • Thumper
HECU	Powered Combat Vest • Radio • Tactical Map • Welding Torch
Other	Garden Gnome

Aperture Science
Personnel	Caroline • Chell • Desk Employee • Henry • Cave Johnson • Doug Rattmann • Greg • Mel (cut) • Test Subject • Test Subject 042 • Test Subject 234 • Minor Aperture Science employees
Technology	1500 Megawatt Heavy Duty Super-Colliding Super Button • Advanced Knee Replacement • Aerial Faith Plate • Announcement System • Borealis • Core Input Receptacle • Crusher • Edgeless Safety Cube • Edgeless Safety Cube Receptacle • Emergency Intelligence Incinerator • Excursion Funnel • Futbol (cut) • Handheld Portal Device • Hard Light Bridge • High Energy Pellet • Laser Field • Long Fall Boot • Material Emancipation Grill • Mobility Gels: Conversion Gel / Propulsion Gel / Repulsion Gel / Sticking Gel (cut) • Multitasking Arm • Pipe Network • Pneumatic Diversity Vent • Panel • Cube Button • Radio • Reassembly Machine • Relaxation Vault • Security Camera • Scaling Cube • Shredder • Speaker System • Stasis Chamber • Switch • Teleportation • Thermal Discouragement Beam • Unstationary Scaffold • Victory Lift • Vital Apparatus Vent • Weighted Pivot Cube • Weighted Storage Cube
Robots	Robot Worker • ATLAS and P-body • GLaDOS • Grady • Jerry • Military Android • Nanobot • Party Escort Bot • Personality Construct • Robot Enrichment • Wheatley
Weapons	Bomb • Hover Turret (cut)
Sentry Turrets	Animal King • Frankenturret • Defective Turret • Oracle Turret • Rocket Sentry • Sentry Turret • Turret Opera
Locations	Borealis • Employee Daycare Center • Enrichment Center • Enrichment Shafts: Co-op Test Shaft / Test Shaft 09 • Extended Relaxation Annex • Extended Relaxation Center • Central AI Chamber • Hub • Incinerator Room • Neurotoxin Generator • Testing Tracks: GLaDOS' Testing Track (Portal) / GLaDOS' Testing Track (Portal 2) / Wheatley's Testing Track / Cooperative Testing Courses • Turret Manufacturing
Other	Aperture Science Collaborative Disposition Test • ApertureScience.com • Cake • Enrichment Center Test Subject Application Process • GLaDOS' screen images • Hoopie • Karla the Complainer • Mantis Man

Aperture Science Shredder

Trivia

Behind the scenes

List of appearances

Fan Feed