VDF B Automatic Inline Needle Metal Detector for Food Inspection Industry with High Sensitivity

You’re looking at a machine that’s basically the final checkpoint for any metal that shouldn’t be there—broken needles, wire fragments, even bits of stainless steel that’d ruin a batch. We’ve seen it catch ferrous down to 0.8mm, non-ferrous at 1.0mm, and stainless steel at 1.2mm, which is tighter than most comparable units in this price range. It works best in food processing lines where HACCP compliance is non-negotiable, but honestly, we’ve had buyers use it for plastics and textiles too—just confirm the tunnel size works for your product. The 400mm wide by 120mm high opening handles most packaged goods, and the modular chain belt keeps things moving without jamming.

And the rejection system is where you’ll need to decide—push rod or flap drop, depending on your line layout. Most buyers go with the flap drop for heavier items, but the push rod is faster for smaller packs. The sound and light alarm gives you a clear heads-up, though you can tie it into your own control system if you want. It runs on AC 110V, 220V, or 380V, 50-60Hz, so we usually ask about your facility’s setup before quoting. We stock the stainlss steel construction as standard—it’s easy to clean and holds up to washdowns, which matters for food contact surfaces.

One thing people don’t always think about is the belt height—it’s fixed at 65cm, so you’ll want to measure your existing conveyor height to avoid a mismatch. We’ve had a few customers who had to add risers, which isn’t a big deal, but it’s an extra step. The control system comes in digital or analog options; the digital one is easier to tweak on the fly, but the analog is simpler if your team isn’t tech-heavy. Anyway, both meet FDA standdard for the conveyor components, so you’re covered on that front.

It’s not suited for very wet or sticky products without some modifications—the detection head can get false triggers form moisture if you’re running something like raw meat slurry. We usually recommend a different model for that, but for dry goods, powders, or packaged snacks, this thing is rock-solid. typical lead time is about 20 days or so, and we’ll send a COA with the unit. You’ll want to check the tunnel size against your largest package—400mm wide is generous, but if you’re running oversized boxes, it might be tight.

We’ve shipped these to bakeries, snack manufacturers, and even a recycling plant that wanted to catch metal in shredded plastic—it worked, though the sensitivity wasn’t quite as sharp on the stainless steel side in that enviroment. The detection specs we quote are for ideal conditions, so expect a little variance if your product has high salt or moisture content. MOQ is usually one unit, but we’ll discount if you order three or more—just ask about that when you’re ready.