Tunnel Metal Detector for belts

DLS tunnel metal detectors which are separable and equipped with digital technology are used for inspecting bulk materials or individually packaged products on belt conveyors, material slides or vibratory conveyors.  They detect all magnetic and non-magnetic metal contaminants (steel, stainless steel, aluminium etc), even those which may be contained in the product. If metal is detected a signal is sent to the process controller or the reject unit is activated.


  • Detects magnetic and non-magnetic metal contaminants
  • Protects machinery: prevents production downtimes and damage to equipment
  • Reduces costs and increases productivity
  • Ensures metal-free products
  • Automatically compensates for products with a high product effect (caused by moisture, carbon etc)
  • Very simple to operate, even for non-technical staff
  • “ALUCOMP“ operating mode: compensates for aluminium foil packaging (depends on thickness of film)
  • Higher signal/noise ratio with regard to electromagnetic interference and vibration


DLS Tunnel Detector