Solid state drive disintegrator
A device to reduce solid state drives (SSD) and the like digital media storage devices into particles less than 2 mm maximum edge length. The device is particularly adapted to disintegrating 1.8″ and 2.5″ solid state drives at a rate of about 360 HDD/hr or 720 SSD/hr with a throughput of about 10 seconds. A blade assembly is designed to provide multiple cutting angles while rotating at 520 rpm to maintain a low decibel rating.
1. A device for disintegrating solid state drives (SSD's) comprising:
a housing having a chamber, said chamber formed by a continuous chamber sidewall, said chamber sidewall having a plurality of apertures with at least one cutting knife extending into said chamber through one said aperture;
an autoloader mounted to said housing, said autoloader having a removable cassette capable of positioning a plurality of SSD's for timed introduction into a drop chute, said drop chute constructed and arranged to drop said plurality of SSD's into said chamber at a preprogrammed rate, said cassette including a manual locking mechanism using rotatable protrusions to block movement of the SSD's, and a cassette pusher movable along a grid support to dispense said plurality of SSD's into said drop chute when said protrusions are in an unlocked configuration, said cassette pusher moved by a stepper motor timed to introduce said plurality of SSD's into said drop chute at said preprogrammed rate,
a blade assembly positioned in said chamber beneath an outlet of said drop chute, said blade assembly comprising a first rotor offset from a second rotor, said first and second rotor offset constructed and arranged so that upon introduction of individual SSD placed through said drop chute, said individual SSD will impact said first and second rotors in conjunction with said at least one cutting knife to cause shearing of said individual SSD;
a flywheel coupled to said blade assembly;
a motor coupled to said flywheel to provide rotation of said blade assembly, said motor electrical coupled to a rotation sensor to maintain rotation of said blade assembly at a preprogrammed cutting rpm; and
a holding area for collection of material passing through said plurality of chamber sidewall apertures, said holding area including an exhaust attachment to allow disintegrated material to be removed by a vacuum cleaner to permit removal of comminuted material having normal edge dimensions of 2 mm or less.
2. The device according to claim wherein each said rotor has three blades, each said blade having a leading edge placed at a 60 degree angle relative to said at least one cutting knife.
3. The device according to claim 1 wherein said first rotor has three blades offset in relation to said second rotor having three blades, said rotation position constructed and arranged to permit said individual SSD introduced into said chamber to alternately impact said blades secured to each of said first and second rotor, wherein angular positioning of said individual SSD caused by said alternating impact expedites disintegration by shearing said individual SSD between said blades and said cutting knives extending through said chamber sidewall.
4. The device according to claim wherein said preprogrammed rate of introduction of said plurality of SSD's into said drop chute is a rate of about 1 SSD every 10 seconds.
5. The device according to claim 1 wherein said flywheel weighs 45 kgs.
6. The device according to claim 1 , wherein a control circuit-turns off said motor when the blade assembly preprogrammed cutting rate is about 520 RPM's.
7. The device according to claim 1 , wherein a control circuit turns off said motor when the blade assembly preprogrammed cutting rate is greater than 600 RPM's for at least 60 seconds.
8. The device according to claim 1 , wherein a control circuit reverses rotation of said blade assembly when the blade assembly is detected as jammed.
9. The device according to claim 1 , wherein said blade assembly is spaced apart from said cutting blades by 0.8 mm.
10. The device according to claim 1 , wherein said blade assembly is spaced apart from said chamber sidewall containing apertures by 0.4 mm.
11. The device according to claim 1 , wherein said chamber sidewall containing apertures is a screen with 2 mm apertures.
12. The device according to claim 1 , wherein said motor is 5 HP.
13. The device according to claim including a chute door providing access to said chamber bypassing said autoloader when said cassette is empty.
14. The device according to claim 13 wherein said chute door is operated by a solenoid.
15. The device according to claim 1 further including a Central Processing Unit (CPU) electrically coupled to said motor and said stepper motor.
16. The device according to claim 15 , wherein said autoloader includes a first through-beam electrically coupled to said CPU to locate said pusher relative to a longitudinal axis of said autoloader cassette.
17. The device according to claim 15 , wherein said drop chute includes a second through-beam electrically coupled to said CPU, said second through-beam identifying for said CPU when an item is passing through said drop chute.
18. The device according to claim 15 , wherein said autoloader includes a third though-beam electrically coupled to said CPU, said third through-beam identifying when said autoloader cassette is empty.