Using China bought shredding blades for shredder
So, getting the blades cut for the shredding machine is a bit costly, but there are quite a few options available on Alibaba for hardened steel cutting blades. Here’s some examples: https://www.alibaba.com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchText=Shredder+Blades
I think that using these blades, either cutting or finding a drive shaft suitable for them, and otherwise just using the existing plans for the shredder would be a considerably cheaper option for those who need it. I’m currently using a garden mulcher, which works alright, but makes processing some kinds of plastic difficult.
These blades look like a good option, from only 2USD a piece, 1 pc min order.
They all look like they are designed for twin-shaft shredders though, but that’s not a big step up from the existing plans.
@andyn Actually, might have found an even better option: https://www.alibaba.com/product-detail/200mm-width-300mm-length-Mini-double_60456503285.html?spm=a2700.8443308.0.0.289c3e5fLESRa7
Just talked with the manufacturers and have confirmed it’s actually a full shredder. Seems generally pretty cheap, but I’ll take some time to look over other options.
Yes, looks quite reasonable compared to building one. I think you will need to add the motor, gearbox etc.
Well the tests with house hold plastics such as shampoo bottles looked rather tedious and disappointing; plastics was just jumping around. I can’t see this working well without a good plunger for the hopper.
@pporg Not sure what you’re referring to. The one video I could find of the fully assembled shredder showed it making pretty short work of a water bottle. Admittedly, the output wasn’t very fine, but I believe you typically use a mesh at the bottom to keep material in the shredder until it’s fine enough to fall through. Seeing as you can also order it with custom blade dimensions you should be able to get it closer to the actual precious plastic shredder.
right, i saw recently videos showing a small version, maybe that’s why 😉
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