Gravity Metal Separators for Powder and Granules
LEKA Pack Line (lekapackline.com) gravity metal separators LK-S01 and LK-S04 remove metal from free-fall powder and granules via selectable tube ID options on packaging lines. Empty-machine Fe / SUS and capacity figures are catalog references—not rated or guaranteed; confirm tube ID and line conditions during project review.
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Where it sits
Usually above packing or mixing where powder/granules drop through a pipe. For packaged goods use a conveyor metal detector.
About LEKA Pack Line / catalog references
LEKA Pack Line (lekapackline.com) supplies LK-S01 and LK-S04 gravity metal separators for free-fall powder and granules. At the same pipe ID, iron sensitivity and throughput match, and LK-S01 has the tighter stainless figure. Empty-machine Fe and SUS references are catalog references—not rated or guaranteed values.
Models
Compare catalog reference bands first, then confirm with your product, speed and line layout.
LK-S01
Hopper infeed, vertical drop, automatic flap discharge, collection box, and a frame on casters. For powder and granules before packing. Iron sensitivity and throughput match the other separator at the same pipe ID. LK-S01 has the tighter stainless figure.
Ask about LK-S01Empty-machine by pipe
Empty-machine sphere diameter. Product, salt, water, frozen product, and where the metal sits in the pack change the result. The function text for iron larger than 0.3 mm matches the 30 mm pipe. A powder already inside a foil bag needs LK-807 or X-ray, not this separator.
LK-S04
Hopper infeed, vertical drop, automatic flap discharge, collection box, and a frame on casters. For powder and granules before packing. Iron sensitivity and throughput match the other separator at the same pipe ID. LK-S04 uses the same iron and throughput table, with a larger stainless sphere at each pipe ID.
Ask about LK-S04Empty-machine by pipe
Empty-machine sphere diameter. Product, salt, water, frozen product, and where the metal sits in the pack change the result. The function text for iron larger than 0.3 mm matches the 30 mm pipe. A powder already inside a foil bag needs LK-807 or X-ray, not this separator.
Detectable metals
Gravity metal separators remove metallic contaminants from free-fall powder and granules — Fe and SUS by tube ID. They are not X-ray systems.
Catalog reference images. Empty-machine Fe/SUS figures by tube ID on this page are theoretical no-product references — actual detectable size depends on product flow, bulk density, and line conditions and is confirmed during project review.
Models at a glance
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| Tube ID (mm) | Fe, empty-machine | LK-S01 stainless | LK-S04 stainless | Throughput |
|---|---|---|---|---|
| 30 | 0.3 mm | 0.5 mm | 1.0 mm | 300–400 kg/h |
| 50 | 0.4 mm | 0.8 mm | 1.2 mm | 700–800 kg/h |
| 70 | 0.6 mm | 1.0 mm | 1.5 mm | 1000–1500 kg/h |
| 100 | 0.8 mm | 1.2 mm | 2.0 mm | 2000–2500 kg/h |
| 150 | 1.5 mm | 2.0 mm | 3.5 mm | 5000 kg/h |
Empty-machine iron, stainless, and throughput for pipe IDs 30, 50, 70, 100, and 150 mm are on the LK-S01 and LK-S04 cards. At the same pipe ID, LK-S01 has the tighter stainless figure. Alarm is an automatic flap. Voltage is 220 V / 50–60 Hz. Ambient is −10 °C to +50 °C. These are empty-machine references.
Frequently asked questions
Gravity metal separator vs conveyor metal detector — which for powder?
Gravity separators (LK-S01 / LK-S04) suit free-fall powder and granules through a tube. Conveyor metal detectors suit packaged products on a belt. Tube ID, throughput, and sensitivity interact; confirm in project review.
How do tube diameter and capacity relate?
Larger tube IDs support higher kg/h capacity with coarser empty-machine Fe reference sizes. Choose tube ID from product flow and target sensitivity, then confirm with samples.
Are SUS figures published for S01 and S04?
Yes. Iron and throughput match at the same pipe ID. From 30 mm to 150 mm pipe, LK-S01 stainless is 0.5, 0.8, 1.0, 1.2, and 2.0 mm. LK-S04 stainless is 1.0, 1.2, 1.5, 2.0, and 3.5 mm. These are empty-machine figures, not a rated guarantee.
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, tube ID, bulk density, target kg/h, upstream/downstream flanges
- photo or sketch
- existing equipment brand
- report / batch traceability need
- reject preference
- planned quantity
- reject / divert collection
- PLC / interlock
- flange height and feed direction (no belt height on free-fall units)