Cortex CB 503

Cortex CB 503 Derinder

Automatic derinding machines with conveyors with high cutting speed for use in large and medium sized meat processing industrial plants.

Features and application range

cutting width:

500 mm

cutting speed:

29 m/min

  • available as mobile model with accessibility for skin removal from the sides
  • or as suspended version with plant specific adaptation
  • particularly space-saving and economical model

perfect derinding of flat and high pieces such as belly, back fat, rind cut to size, partial cuts, shoulder etc.

Standard equipment

  • infeed conveyor
  • discharge conveyor
  • compact casing with underframe open on all four sides
  • blade gap infinitely adjustable
  • spring suspended blade holder for perfect derinding results
  • spring suspended pressure roller, additionally continuously variable in height
  • tooth roller with scraper comb
  • NOCK POWER PLATES® for outstanding robustness, service friendliness and smooth and easy to clean surfaces
  • NOCK EASY-FLOW® safety cover for reliable product flow and better hygiene during processing
  • NEW: Protective cover in the machine outlet for increased safety at work
  • conveyors can be removed within seconds without any tools
  • lockable castors
  • stainless steel
  • stainless steel bearings


  • discharge conveyor for removed skin
  • plastic modular belts
  • inflated pressure balloon
  • NOCK ACTIVE SKIN GRIPPER® (ASG) for higher yield, best quality of the rind and protection of the pressure wheels with perfect first cut
  • Cleaning trolley for storage and cleaning of dismountable parts like: conveyors, belts, pressure roller and blade holder

Technical data

Cortex CB 503

cutting width

500 mm

cutting speed

29 m/min

maximum throughput height

120 mm

blade gap

0 - 5 mm

apply length on infeed conveyor

300 mm

infeed conveyor (1)

850 x 490 mm

discharge conveyor (1)

850 x 490 mm

discharge conveyor for removed skin (1)

650 x 490 mm

overall dimension W x H x D

865 x 1190 x 1860 mm


265 kg

motor performance

1.1 kW

electrical connection

3 L - PE - 400 V - 50 Hz
IEC 60309 16 A 6h (plug)
other voltages upon request

compressed air

not required

(1) external dimension of the conveyor frame

More information


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