Metal Detector

1. Overview

The GJT-F series metal detector is suitable for magnetic materials, such as and non-ferrous metal mine magnetic material belt conveyor and processing systems. It can accurately detect various metal impurities mixed in the materials, including iron, manganese steel, chromium steel,, and copper. In addition to the sound and light alarm, the control circuit has relay contact outputs, which can be used in conjunction with a magnetic separator for automatic metal removal, or to various scrapers and valves to divert the materials. It can also directly stop the belt conveyor for manual metal removal. It provides a reliable guarantee to prevent metal from entering the raw material crushing system ensures the safe operation of the equipment.

This model is improved based on the previous generation, adopting some new technologies and components, and adding some new functions according to user needs;1. It adopts new technology, enabling the GJT-F model to have the best detection sensitivity for different types of metals (magnetic, non-magnetic, and weakly magnetic metals under the same conditions, overcoming the drawback of the old model where detection sensitivity could not be balanced for different types of metals under the same conditions.

2. It adopts new components and new design, significantly improving the GJT-F model's temperature drift control, interference suppression capability, and overall working stability compared to the previous generation.

3. The latest makes the on-site commissioning of the GJT-F model more convenient. The analog meter indication of the previous generation has been replaced by LED indication. On the machine panel, adjustment of "balance" and "detection sensitivity" can be completed via knobs.

2. Working Principle

This machine utilizes the metal signal generated when metal enters the sensing electromagnetic field processes it through electronic technology, and drives the actuator to remove harmful metals.

3. Technical Specifications

The GJT-F metal detector is designed with an outdoor waterproof andproof structure, complying with the IP54 standard for all-weather operation. The main technical specifications are as follows:

1) Control Box

   External Dimensions: 20mm × 190mm × 90mm

   Weight: 6.5kg

   Structural Form: Outdoor wall-mounted waterproof and dustproof structure

Operating Mode: All-weather continuous operation

   Metal Detection Alarm: Sound and light, buzzer ringing

   Metal Detection Alarm Output: Relay passive contacts, one set normally open, set normally closed

   Contact Capacity: 5A 220V AC / 28V DC

2) Detection Sensor

   Structural Form: Pipe type with a end

   Applicable Conveyor Belt Width: 500mm ~ 2000mm

   Applicable Conveyor Belt Speed: 0.8 ~3.5 m/s

3) Comprehensive Performance Indicators

   Power Supply Voltage: AC 220V ± 10% 50Hz

   Power: < 30W

   Ambient Temperature: -20°C ~  40°C

   Relative Humidity: 85% RH

   Material Particle Size: 300mm

   Material Grade: ≤ 50%

   Angle between Sensor Installation Plane and Horizontal Plane: ≤ 18 degrees

   Maximum Distance between and Control Box: < 15 meters