Large Bag Metal Detector

Fortress’ metal detector for large bag applications, popularly known as the ‘Big Bag King’,  provides unrivalled metal detection performance with large package sizes.

Large Bag Metal Detector2019-08-01T13:53:30+09:30

With the highest processing power, Fortress industrial metal detectors are renowned for their superior speed, accuracy and ease-of-use. The ‘Big Bag King’ from Fortress sets an unrivalled industry standard for industrial metal detector sensitivity levels being able to detect 2.0 mm stainless steel in 25-50kg bags of dry product.

Typical applications include flour, grain, spices, powders, food additives and healthcare products.

Famous for their superior accuracy and reliability, Stealth Large Bag Metal Detectors act as essential Critical Control Points in HACCP systems, effectively identifying and rejecting potential contamination.

Fortress Large Bag metal detectors employ the latest digital signal processing technology to detect and reject ferrous and non-ferrous metals, including stainless steel.The Fortress Large Bag metal detector utilises a specialised coil structure to achieve unmatched metal detection performance with large product sizes. This Fortress metal detection system performs to a high specification even in harsh production environments subject to electrical noise and physical vibration.

The unique Fortress technology enables an RF noise reduction modification that dramatically reduces the detector’s susceptibility to interference.  The ‘Big Bag King’ is offered in conjunction with an integrated Vector conveyor system for an optimised all-in-one food metal detection solution.

All Fortress metal detection systems are available in two models:

  1. The Phantom is the standard metal detection system.
  2. The Stealth is the same metal detection system but fitted with a different keypad interface with integrated HACCP reporting capabilities, and includes a USB port.


  • Achieves Detection of 2.0mm Stainless Steel (316) in 50-100lb (25-50kg) bags
  • Contact Reporter Lite Software Included
  • Detailed Data Collection
  • Digital Signal Processing Technology
  • Ultra Sensitive Detection
  • AutoTest: Self Diagnostic Testing
  • Automatic Calibration
  • System Set-Up in Seconds
  • Flash Memory Stability
  • Multi-Level Password Protection