Technology

Replaceable Blade System — Bolt-On Cutter Inserts (Hardox)

Hardox bolt-on inserts with 3x longer service life.

What It Is

Composite cutting blades featuring a reusable body with bolt-on cutter inserts. Unlike conventional welded-on cutters that require complete blade replacement or off-site refurbishment, our replaceable inserts are swapped in minutes using a standard impact wrench — no welding, no specialized tools, no complete disassembly required.

Key Benefits

  • Insert replacement in minutes with an impact wrench — any maintenance technician can perform the swap. No welding or specialist skills required.

  • Replace only the worn inserts, not the entire blade. The blade body remains in the machine. Lower spare parts inventory and significantly reduced total cost of ownership (TCO).

  • Immediate return to operation — no sending blades off-site for refurbishment.

  • Inserts manufactured in Hardox 400–500 HBW steel with up to 3x longer service life. Superior abrasion and impact resistance for materials containing soil, silica, and contaminants.

Application-Specific Customization

Blade bodies can be manufactured in different steel grades matched to the processed material:

  • Carbon steel: light-duty applications (clean biomass, paper, cardboard)

  • Hardox: heavy-duty applications (biomass with soil, C&D waste, metals, WEEE)

This flexibility allows optimizing cost based on application severity.

Bolt-on replaceable blade inserts are standard equipment on the PR4000 and PR5000 Pre-Shredders.

Need a custom solution?

Our engineering team designs the ideal solution for your process.