The PF series can process granite but blow bar and liner wear rates increase significantly compared to limestone or concrete. For sustained granite or quartzite processing, a cone crusher secondary stage typically offers lower wear cost per ton. For mixed feed with occasional hard material, Cr26 blow bars provide the best wear resistance available in this product category. Contact us with your material data for a wear cost estimate.

Jaw and cone crushers break material by compression - squeezing it between two surfaces. Impact crushers break material by high-velocity impact - the blow bar strikes feed at rotor tip speed and the resulting fracture propagates through the material's natural cleavage planes. Impact crushing produces a more cubical, better-shaped product and a higher fines content, but generates more wear on abrasive materials. For limestone, concrete, and soft-to-medium rock, impact crushing delivers lower cost per ton and better product shape. For hard, highly abrasive materials, compression crushing is generally more economical.

Full hydraulic opening of the rear frame exposes the complete rotor, all blow bars, both impact plates, and all chamber liners in a single operation. No manual props, no crane required for frame movement. A two-person maintenance team can complete a full blow bar rotation, impact plate inspection, and gap reset in 2–3 hours - compared to 4–6 hours on a mechanical-opening machine of equivalent size.