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Metal detector QLC/QLCTA

The QLC is a single probe version of the metal detector that can be easily mounted under the conveyor belt. For better protection, use the QLCTA version with tandem probe: it monitors your goods from above and below the conveyor belt.
  • Monitors bulk materials in the building materials industry or mining
  • Self-adjusting and easy to install
  • High-quality components ensure reliability and long service life
  • Detects ferrous and non-ferrous metals; iron oxide and ore are ignored
  • Probe and amplifier are immune to vibration and resistant to weather, dirt and stone chips
  • Particularly robust and easy to clean
Metal detector QLC/QLCTA


  • Good sensitivity (M10 nuts) at belt speed of 0.3 - 6 m/s
  • Smple operation
  • Can be used close to frequency converters, only 6.5 ft minimum distance between probe and motors or magnets
  • Belt widths from 1.5 ft to 6.5 ft
  • Monitoring and display of internal para-meters
  • Optional: Realization as tandem for higher debris heights
  • Optional: complete suppression of magnetite Fe3O4


The QLC and QLCTA metal detectors offer good metal sensitivity for monitoring bulk materials in the mining and construction industry.

They are extremely durable, insensitive to vibrations and resistant to weather, dirt or stone chips. They are easy to install, handle and maintain.

At a belt speed of 0.3 - 6.0 m/s, they can easily detect metal parts about the size of M10 nuts and larger.

For higher sensitivity (M6 nuts) at a belt speed of max. 4.0 m/s, we recommend the metal detectors SQ and SQTA.

Delivery Scope

  • Detection unit
  • Control unit, sheet steel housing, prepared for wall mounting


  • Protection against harmful metal parts such as tools or machine parts in the material


Model Name/ID Metal detector QLC/QLCTA
Electronics Analogue, self-adjusting, VFD noise filter, vibration immunity filter, detection level knob
Input Sensor and coaxial cable
Output Metal alarm relay with 2 potential-free changeover contacts, switching capacity 230V/6A
Inspection Method High-frequency magnetic field, eddy current discrimination
Metal Detection Iron, non-ferrous (e.g. aluminum or copper), largely ignores ores
Optional: complete blanking of magnetite Fe304
Product Compensation Automatic ignoring of iron oxide and ores
Protection Type IP55
Ambience -20°C up to +55°C
Product Temperature -20°C up to +55°C / -4°F to 131°F
Power Supply 230V 15Hz +/- 15%, typ. consumption 15VA
Interface no digital interface
Maintenance Maintenance-free, sensors calibrate themselves
Diagnostics built-in-instrument for function control
Conformity CE