1）Plastic Waste Recycling (Lumps, Films, and Hard Parts)
Dual-shaft shredders are essential for primary size reduction of plastic waste including purge lumps, injection molding sprues, thick-walled pipes, and bales of film. The two counter-rotating shafts with hooked knives grab and tear materials apart at low speed but high torque, preventing jamming even when processing bulky or mixed items. Unlike single-shaft units, dual-shaft designs handle contaminated or wet feed without wrapping issues. Output size ranges from 50mm to 200mm, suitable for feeding downstream granulators or washing lines. Applications include post-industrial scrap recycling, post-consumer rigid plastics, and purging recovery. The rugged construction handles occasional metal contaminants like screws or small tools without catastrophic damage, reducing downtime and blade replacement costs.
2）Wood Waste Processing (Pallets, Roots, and Construction Lumber)
Dual-shaft shredders efficiently reduce bulky wood waste such as pallets, crates, demolition lumber, tree roots, and plywood offcuts. The slow-speed, high-torque operation minimizes dust and noise compared to hammer mills or horizontal grinders. Interlocking cutters tear wood fibers rather than smashing them, producing a consistent chip size ideal for biomass fuel, composting feedstock, or mulch production. The machine handles embedded nails, screws, and brackets without blade breakage, thanks to automatic reverse and overload protection systems. Output can be adjusted by changing screen sizes or cutter configurations. These shredders operate reliably in outdoor yards with minimal maintenance, processing 2 to 20 tons per hour depending on model and material density.
3）Electronic Waste & Metal Scrap (E-waste, Motors, and Light Metals)
Dual-shaft shredders provide the first-stage volume reduction for electronic waste including computer cases, printers, circuit boards, hard drives, and small electric motors. The aggressive cutting action tears apart assembled products, liberating plastics from metals and exposing internal components for downstream separation via magnetic and eddy current systems. For light metal scrap such as aluminum extrusions, car body sheets, or mixed non-ferrous materials, the shredder produces manageable pieces without over-compacting. The low-speed operation reduces sparking risks when processing materials containing batteries or residual combustibles. Variable frequency drives allow operators to adjust speed and torque for different feed types. These machines form the backbone of WEEE (Waste Electrical and Electronic Equipment) recycling lines worldwide.
