Fournisseurs de broyeurs industriels plastique

Single-shaft shredders use a single rotor with cutting knives rotating against a fixed counter-blade to reduce plastic to coarse chips, typically 30–80mm. They handle a wide range of input sizes including whole bales, drums, and large hollow objects. Lower speed (40–100 rpm) means lower noise, lower fines generation, and ability to handle mixed or contaminated material — but at lower throughput than granulators. Two-shaft shredders use two counter-rotating shafts with interlocking cutting discs — very robust for tough, mixed, or contaminated input including pipes, profiles, and mixed rigid scrap. Granulators (also called crushers in some markets) use a high-speed rotor (200–600 rpm) with multiple cutting blades rotating against fixed knives — producing smaller, more consistent output (15–30mm) at higher throughput but requiring cleaner, pre-sized input. Not suitable for bales or very large objects. Wet crushers (wet granulators) operate in a water-flooded chamber, cutting plastic while simultaneously washing — used in film recycling lines to cut film in water, preventing wrapping and dust. The choice depends on input material size, form (baled, loose, whole), contamination, and required output size.

Crusher throughput is rated in kg/hour and depends on rotor size, motor power, and input material. A 15kW granulator processes approximately 200–500 kg/hour of rigid plastic. A 45kW granulator processes approximately 600–1,200 kg/hour. Industrial single-shaft shredders with 75–200kW motors process 500–3,000 kg/hour depending on material. Rotor design determines the output size consistency and the machine's ability to handle different materials. Scissor-cut (flying knife) rotor designs produce cleaner cuts with less fines. V-cut designs are more resistant to hard or contaminated material. Screen aperture at the base of the cutting chamber controls the maximum output flake size — smaller screens produce finer output but reduce throughput. Wear parts — cutting knives, counter-knives (stators), and screens — are the main consumable cost of a crusher. Confirm: the material of the knives (high-speed tool steel, carbide-tipped, or hard-faced), the expected knife life for your specific input material, the ease of knife rotation and replacement, and the availability of spare knives from the manufacturer or local agent.