Tunnel Detectors
Detectronic metal detection

The most widely used arrangement on a food or factory belt
Product passes through a rectangular aperture on a belt. If metal is found, the contaminated pack is removed automatically. Detectronic supplies the detector head for a conveyor you already run, or a complete machine with stand, belt, controls and reject.
Track Int’l Trade specifies, supplies and supports these systems in Egypt — sized to the product, the belt height, and how hard the line is cleaned.
Packed and unpacked
Trays, bags, cartons, whole cuts, bread and ready meals — inspected at the end of the line, before the case.
Head or complete line
Drop a detector into an existing conveyor, or take a full unit with reject, bin and safety chain as one package.
Smallest possible aperture
Sensitivity falls as the opening grows. We size the tunnel to the product’s largest height and width, and no larger.
Fail-safe reject
Pusher, air blast, retracting belt, drop flap or belt stop — with reject confirmation, bin-full and low-air alarms.
Two ways to install
With conveyor
Detector, belt, stand, controls and automatic reject as one machine. Place it in the line, connect power and compressed air, and run.
- Belt height matched to adjacent equipment
- Reject system, lockable bin and confirmation sensors included
- Options: centre-drive, side guides, speed control, curved belt, small rollers for short products
Detector head only
The same electronics and enclosure, for mounting into a conveyor you already have — or into a machine you are building.
- Aperture built to the product’s largest dimensions
- Interface drawings and electrical specifications supplied up front
- You keep control of belt type, speed and layout — including OEM integration
Specifications
| Detection technology | Operating frequencies from 30 to 300 kHz (607 low-frequency / 608 high-frequency, selected by product) |
|---|---|
| Construction | Stainless steel, hygienic design |
| Protection | IP68 / IP69K configurations for washdown halls (WET DETECT) |
| Aperture | Configured to product dimensions and required clearance |
| Configuration | Detector head only, or complete conveyor system |
| Reject systems | Pusher, air blast, retracting belt, drop flap or belt stop |
| Fail-safe options | Reject confirmation, bin full, product registration, low air pressure, bin-door alarm |
| Conveyor options | Belt widths, lengths, heights and layouts specified to the line |
| Interface | Touchscreen with product memory, password levels and multilingual operation |
| Connectivity | Ethernet and remote access options |
| Sensitivity | Quoted on the actual product, packing, aperture and line speed |
Gallery
Tunnel detectors
Track Int’l Trade · Detectronic






