Blogue
Industrial Shredder: What Actually Makes a Shredder Industrial-Grade
A buyer in Turkey sent me two quotes for an "industrial shredder" and wanted to know why one cost nearly double. Both were 45 kW. Both had similar rotor widths. On paper they looked like the same machine. I asked each supplier one question: how many hours a day can it...
Shredder Definition: What a Shredder Is, How It Works, and How It Differs From a Crusher
Someone emailed us last month asking for a "shredder for 800 kg/h of PP." No material description. No feed size. No idea what the output fed. I asked what they were shredding and they said "plastic, obviously." That is a real problem with this word. Shredder gets used...
Plastic Drum Shredder: Why Barrels Are a Volume Problem, Not a Hardness Problem
A recycler in Poland called me about a shredder that was "underperforming." They were feeding 200-litre HDPE drums and getting about a third of the throughput the brochure promised. They wanted to know if the motor was undersized. I asked two questions. How much does...
Plastic Shredder Noise and Dust: Where It Comes From and How to Beat It
A moulder in Thailand bought a 37 kW single shaft shredder for a room inside their building. Nice machine. Two weeks later the neighbours on the other side of the wall filed a complaint, and the site manager called me asking about a "quiet motor." I asked him to stand...
Plastic Shredder Screen Size: Why the Hole Sets Your Ceiling, Not Your Flake Size
A customer sent me a photo of a shredder screen last month. Bent, cracked along one weld, holes worn oval. He wanted to know if he should order the same size again or go smaller. "The flakes are too big," he wrote. "I want finer output." I asked what those flakes fed...