The Nock Cortex CB504/604/704 are automatic derinding machines with conveyor belts for industrial meat processing plants with long conveyor belts, particularly suitable for integration in processing lines.  The Nock CB504/604/704 are available as mobile model’s, with accessibility for skin removal from the sides or as a suspended version with plant specific adaptation.  Perfect derinding of all flat and high pieces such as belly, back fat, rind cut to size, partial cuts, shoulder etc. The Nock Cortex CB504/604/704 has a cutting speed: 29 m/min.

Product Features:

  • In-feed and output conveyor belt or output slide sheet
  • Compact casing with underframe open on all four sides
  • Blade gap infinitely adjustable
  • Spring suspended blade holder for perfect de-rinding results
  • Spring suspended pressure roller, additionally continuously variable in height
  • Tooth roller with scraper comb
  • Underframe, open to 4 sides, ease of access
  • NOCK POWER PLATES® for the outstanding robustness, durability and service friendliness and smooth, easy to clean surfaces
  • NOCK EASY-FLOW® safety cover for reliable product flow and better hygiene during processing
  • Conveyor belts can be removed within seconds without any tools
  • Lockable castors
  • Stainless steel construction and stainless steel bearings


  • Suspended version with plant specific adaptation
  • Discharge conveyor belt for removed skin
  • Lateral discharge conveyor belt for removed skin with separate drive
  • Suspension arrangement for conveyor belts
  • Plastic modular belts
  • Inflated pressure balloon
  • Transfer plate for passage without processing
  • NOCK ACTIVE SKIN GRIPPER ® ASG for higher yield, best quality of the rind and protection of the pressure wheels with perfect first cut