
Aluminum Foil Metal Detectors for Packaging Lines
LEKA Pack Line (lekapackline.com) LK-807 aluminum-foil packaging metal detector targets ferromagnetic contaminants in foil / non-ferrous film packs—not a generic tunnel MD substitute for every pack type. Empty-machine Fe reference by tunnel height is a catalog reference—not rated or guaranteed; confirm aperture during project review.
Where it sits
Use when packs include foil layers that confuse a standard conveyor MD. For non-foil packs see conveyor metal detector; for glass/ceramic see food X-ray inspection.
About LEKA Pack Line / catalog references
LEKA Pack Line (lekapackline.com) supplies the LK-807 aluminum foil metal detector for ferromagnetic detection on foil and non-ferrous film packs. Fe sensitivity is stated by tunnel height as an empty-machine reference—not rated or guaranteed. Confirm height, speed and reject layout during project review.
Models
Compare catalog reference bands first, then confirm with your product, speed and line layout.

LK-807
Touch-screen metal detector for aluminum-foil and other non-ferrous film packs. A qualified foil pack can pass. The catalog examples are nails, wire, screen fragments, fish hooks, screws, needle tips, and metal tools. The parameter table lists iron only.
Ask about LK-807| mm H | 100 | 120 | 150 | 200 | 250 | 300 | 350 |
|---|---|---|---|---|---|---|---|
| Fe | 0.7 | 0.9 | 1.1 | 1.4 | 1.9 | 2.9 | 3.3 |
Empty-machine sphere diameter. Product, salt, water, frozen product, and where the metal sits in the pack change the result. This table has no stainless, glass, or bone figure. For those in a foil pack, use the X-ray window that fits the pack.








Detectable contaminant
LK-807 is intended for ferromagnetic metal in aluminum-foil / non-ferrous film packs. It is not a universal all-metal detector and does not claim ceramic, glass, bone, or stone detection.

Catalog reference image. Foil / metallized packs limit what a standard conveyor MD can see — confirm Fe matrix and pack type in project review. Empty-machine Fe figures remain theoretical no-product references.
Models at a glance
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| Model | Tunnel | Empty-machine Fe ref. | Speed | Reject |
|---|---|---|---|---|
| LK-807 | Width 400 mm. Standard height 100–200 mm. | Empty-machine iron by aperture height. See the LK-807 card. | 25–30 m/min | Optional / customized |
Purpose, power & size
Purpose: ferromagnetic impurities in aluminum-foil / non-ferrous film packs. Power AC 220V 50Hz, 120W. Approx. size ~1400×820×900 mm. Confirm Fe matrix in project review.
Purpose: ferromagnetic impurities in aluminum-foil / non-ferrous film packs. Power AC 220V 50Hz, 120W. Approx. size ~1400×820×900 mm. Confirm Fe matrix in project review.
Empty-machine (no-product) reference sensitivity figures are theoretical references without product effect; actual detectable size depends on product, packaging, and line conditions and is confirmed during project review.
Frequently asked questions
When do I need a foil-pack metal detector (LK-807)?
Use LK-807 when packs use aluminum foil or non-ferrous film and you need to find ferromagnetic contaminants. A standard conveyor metal detector is not a universal substitute for foil packs.
What does LK-807 detect?
LK-807 is intended for ferromagnetic metal impurities in aluminum-foil / non-ferrous film packaging. It is not described as a universal all-metal detector for every pack type.
Can I treat catalog Fe figures as on-product performance?
Empty-machine (no-product) reference sensitivity figures are theoretical references without product effect; actual detectable size depends on product, packaging, and line conditions and is confirmed during project review.
Send project details for a configuration review
Email sales@lekapackline.com or WhatsApp +86 18126903504.
Include these details
- product form
- packaging material (foil / metal lid / zipper?)
- piece size & weight range
- target speed
- what to detect or check
- voltage & destination country
- new line or retrofit (line speed, belt height, left/right discharge)
- photo or sketch
- existing equipment brand
- report / batch traceability need
- reject preference
- planned quantity
- reject collection
- PLC / interlock
- line height and left/right flow