Metal Detector
Behpoo metal detectors find ferrous, non-ferrous and stainless steel contamination in packed and free-falling product. Aperture sizes from 100 to 600 mm , with automatic rejection and full detection logging.
A metal detector protects downstream equipment and end customers from metal contamination. Product passes through a coil aperture; any conductive or magnetic particle disturbs the field and triggers a reject signal.
Read more
Behpoo supplies three physical arrangements. Conveyor detectors sit in the packed-product line, usually beside the check weigher. Gravity-fall detectors are fitted in a vertical pipe ahead of filling, catching contamination before it enters the pack. Pipeline detectors are fitted into pneumatic conveying lines.
Detection sensitivity is set by aperture size and product effect — the signal the product itself produces. Smaller apertures detect smaller particles, so the aperture is sized to the product, not oversized for convenience. Multi-frequency units separate the product signal from the metal signal, which is what makes detection possible in wet, salty and conductive products.
Systems include a reject mechanism, a lockable reject bin and a detection log for audit purposes.
Benefits & Features
- Detects ferrous, non-ferrous and stainless steel
- Aperture sizes 100 – 600 mm
- Conveyor, gravity-fall and pipeline arrangements
- Multi-frequency operation for wet and conductive products
- Automatic reject with lockable collection bin
- Detection logging and audit reporting
- Automatic product learning for new recipes
Product Range
| Type | What it is | Typical use |
|---|---|---|
| Conveyor | Coil aperture built around a belt conveyor | Packed sacks, cartons and bags in the finished-product line |
| Gravity Fall | Vertical pipe unit with fast diverter flap | Powder and granule streams before filling |
| Pipeline | Inline unit for pneumatic conveying lines | Protecting extruders, mills and mixers |
| Washdown / Hygienic | Stainless steel with IP65+ sealing | Food and pharmaceutical duty |
| Combined with Check Weigher | Single frame carrying both weight and metal inspection | Where line length is limited |
Available Options
| Option | Choices |
|---|---|
| Aperture size | 100 · 150 · 200 · 300 · 400 · 600 mm |
| Frequency | Single frequency · Multi-frequency |
| Reject mechanism | Pneumatic pusher · Air blast · Diverter flap · Drop flap |
| Frame material | Painted carbon steel · SS304 · SS316 |
| Enclosure | Standard · IP65 washdown |
| Records | Local log · SCADA integration · Audit report |
| Safety | Standard · ATEX |
Technical Specification
| Parameter | Unit | Range |
|---|---|---|
| Aperture width × height | mm | 150×80 to 800×400 |
| Ferrous sensitivity | mm sphere | 0.3 – 2.0 |
| Non-ferrous sensitivity | mm sphere | 0.4 – 2.5 |
| Stainless sensitivity | mm sphere | 0.6 – 3.5 |
| Belt speed (conveyor type) | m/min | 10 – 80 |
| Frame material | — | Carbon steel · SS304 · SS316 |
| Installed power | kW | 0.5 – 2.2 |
| Compressed air | barg | 6 – 7 |
| Hazardous area | Zone | 20 / 21 / 22 on request |
Areas & Application
Food & Feed
Protection of the consumer and compliance with HACCP and retailer audit requirements, with full detection logging.
Polymers & Plastics
Removal of metal from granule streams before extruders and injection machines, where a single fragment damages screws and dies.
Cement & Minerals
Protection of mills, crushers and conveying equipment from tramp metal entering with raw material.
Chemicals
Contamination control in powder streams, in ATEX execution where dust is combustible.
Recycling
Removal of metal from reclaimed material before processing.
Options & Compliance
- MaterialsPainted carbon steel · SS304 · SS316
- Hazardous areaATEX execution for Zone 20 / 21 / 22
- EnclosureIP55 standard · IP65 washdown
- Control interfaceProfinet · Modbus TCP · EtherNet/IP with detection logging
- StandardsHACCP and retailer codes of practice for food · ISO 12100 · EN 60204-1
Tell us your product, pack size and required sensitivity — we will size the aperture and confirm detection levels.