Tramp metal can stop your operation, and the damage it causes to equipment can be expensive. That’s why conscientious operators and owners consider tramp metal detectors to be an essential part of their operation. The Thermo Scientific Ramsey Oretronic III tramp metal detector provides an economical and reliable means to protect expensive crushers, conveyors and other process equipment from damage by tramp metal.

The Ramsey Oretronic III tramp metal detector is designed especially for belt conveyors moving coal, iron pellets, minerals, aggregates and other bulk materials. It can detect all types of metallic scrap, including bucket teeth, manganese steel mantles, bore crowns, bar scrap, chains and tools. It can even detect tramp metal when buried in wet conductive materials. And, because it is insensitive to materials with high magnetic permeability and electrical conductivity, this tramp metal detector can be used in applications where conventional metal detectors produce an unacceptable false alarm rate.

It has a microprocessor-based control unit that automates system setup and calibration. The operator interface provides easy-to-read indicators and has a touch panel keypad designed to simplify setup and system maintenance. All operations of the detector are accessible from the front panel.

This tramp metal detector also features variable frequency to eliminate interference from other electrical equipment, password protection for security, and RS-485 serial communications.


The system’s coils are made of impactresistant polyvinyl chloride and designed to withstand stresses of up to ten times the force of gravity. The generator coil and dualwound receiver coils mount on a support made of non-conductive materials. The field generator coil is swing-mounted to protect the coil and support from being struck from oversized materials. A dual receiver coil is employed to counteract interference from external sources, such as electric motors, lightning and radio transmitters.

Standard Equipment

  • Microprocessor-based control unit
  • Receiver coil
  • Generator coil
  • Support frame

Optional Equipment

  • Belt clip detector
  • High pile detector
  • Tramp metal markers
  • Remote display
  • Speed sensor