Conveyor Metal Detector

Q: Why use a Conveyor Metal Detector?

The overband magnets can only remove paramagnetic objects but can hardly attract weak magnetic metals such as high manganese liners and high chromium liners. In such cases, conveyor metal detectors protect the subsequent equipment by detecting the metals missed by magnets and stopping the conveyor belts for manual pick-up. It plays an important role in protecting the safe operation of crushing equipment and belt conveyors, improving production efficiency, reducing downtime, reducing the labor intensity of workers, and enhancing the level of automated production.

What for?

Conveyor metal detectors can detect harmful metals that mixed into your products in conveyor applications. It gives early warning and protects subsequent equipment or processes from downtime or damage.

GTEK GJT series metal detector is widely used in mining, aggregate, power generation, wood, cement, coal, and other industries that require conveyor transport.

It can either be interlocked with the conveyor control in the existing system or it can be connected with the pull cord switch via NC and NO relays. For more information, contact us today!

Features

Metal detection

Able to detect various magnetic and non-magnetic materials, minimum down to 60x60mm*.

PVC-insulated shell

With good anti-corrosion performance, suitable for harsh environments on site, and easy to install.

Intelligent sensitivity adjustment

Adjustable sensitivity according to ore grade, belt speed, mineral type, digital setting, good stability, and strong applicability.

Anti-interference

Multi-level anti-interference measures are adopted to effectively prevent misoperations.

* The minimum detectable size will vary due to different material grades, types, and average size.

GJT Series Metal Detectors

GJT-2F Dual Layer Coil

High-sensitivity, dual-layer coil design
Fine detection

GJT-3F Concave Shape Metal Detector

Designed for three-idler conveyors
Medium and large metal detection

GJT-4F Flat Plate

Designed for flat conveyors
Medium and large metal detection

DOWNLOADS

GTEK Industrial Metal Detector Flyer

FAQ

Why use a Conveyor Metal Detector?

The overband magnets can only remove paramagnetic objects but can hardly attract weak magnetic metals such as high manganese liners and high chromium liners. In such cases, conveyor metal detectors protect the subsequent equipment by detecting the metals missed by magnets and stopping the conveyor belts for manual pick-up. It plays an important role in protecting the safe operation of crushing equipment and belt conveyors, improving production efficiency, reducing downtime, reducing the labor intensity of workers, and enhancing the level of automated production.

How Does a Conveyor Metal Detector Work?

A conveyor metal detector relies on electromagnetic induction to identify and remove metal contaminants from products moving along a conveyor belt. The system includes coils that generate an electromagnetic field. As materials pass through this field, any metal (conductive) objects disrupt it, triggering a detection process.

When a metal object, such as a contaminant, enters the field, it induces eddy currents in the metal. This induces a secondary magnetic field, and sensors within the metal detector pick up on changes in the electromagnetic field. The system’s electronics analyze these signals, determining the presence, type, and size of the metal. Adjustable sensitivity settings allow operators to customize the detector for different products.

If the detector identifies a metal contamination exceeding a predetermined threshold, it activates an alarm or rejection system. This ensures that the affected product is promptly removed from the conveyor line, preventing potential harm or damage.