Harden large-scale hydraulic driven primary shredder, with the characteristics of high strength and low maintenance cost, is used forvolume reduction of bulky waste and pretreatment application of solid waste, which combines with multiple processing mechanismsuch as shearing, chopping, tearing and extrusion, can easily process the complicated mixed solid waste, e.g. the untreated MSWDecoration waste and industrial waste. 

Harden primary shredder can discharge materialflow with relative uniform particle size, whichis convenient for sorting equipment to further separate or recycle the material, so as to obtain valuable recycling resources or highcalorific value RDF, Besides, primary shredder can be used as "Bag opener" with the redesigned cutter.