Question: How Fast is this shredder?
Answer: The machine can shred continuously for four hours straight without even getting hot. It shreds documents into confetti cut. This is a security shredder that makes checks unreadable after shredded. You need to decide if you want your personal papers unreadable after shredded. If you want speed a strip cut paper shredder is best.
Question: Will this unit shred cardboard?
Answer: This shredder literally pulverizes any paper or documents that you have. And it can shred up to six pages at a time. However, the shredder is not recommended shred cardboard - it's way too thick. Shredding cardboard will bring great damage to the blades of the shredder, thus damaging the use function of the shredder and greatly reducing the lifespan of the shredder.
Question: Are there plastic spacers between cutting blades?
Answer: No plastic spacers between the cutting blades. All criss cross cut blades. Strong enough to chew through credit cards and CDs.