FA-MD4528 Metal Detector: Precision Contamination Control for Packaged Confectionery & Candy Products

In the global confectionery industry, packaged candies, hard sweets, gummy candies, and boxed chocolate products demand extremely high food safety standards. Even tiny metal fragments from cutting tools, mixing equipment, or packaging lines can lead to expensive recalls, retailer penalties, and irreversible damage to brand reputation. For SweetPlus Confectionery Ltd., a well-known candy manufacturer supplying supermarkets and chain stores across the EU, UK, and Middle East, our FA-MD4528 Metal Detector from Shanghai Fanchi-tech Machinery Co., Ltd. has become the most reliable safety barrier for their packaged candy production lines.

After months of stable operation, the FA-MD4528 has eliminated metal contamination risks, reduced false rejects to an industry-leading level, and helped SweetPlus maintain full compliance with EU Food Safety Authority (EFSA), BRC Grade A, and FDA standards.

The Challenge: Metal Contamination Risks in High-Speed Candy Packaging Lines

SweetPlus produces more than 50,000 units of packaged candies daily, including hard candies, gummy jellies, lollipops, and assorted gift boxed candies. All products are finished in individual plastic bags, flow packs, and paper boxes—typical small and medium-sized packaged confectionery formats.

In early 2025, a tiny metal scrap was found in a bag of fruit-flavored hard candies, triggering a partial recall order from a British retail chain. The direct loss reached nearly €32,000, not to mention the extra cost of reputation repair and audit rectification. The company’s old metal detection equipment exposed fatal weaknesses in candy production scenarios:

High false reject rate caused by candy ingredients: Sugar, gelatin, coloring, and high-sugar formulations create strong product effect interference, leading to frequent false rejects that wasted over 180kg of qualified candies every week.
Insensitive detection for tiny metal particles: The old machine could barely detect metal fragments smaller than 1.2mm, while common wear debris from candy mixing blades, cutting knives, and conveyor parts is often between 0.6mm–1.0mm, creating serious blind spots.
Incompatible size and structure for candy packages: The oversized tunnel and unstable conveying structure of traditional detectors could not handle small, lightweight candy packs smoothly, leading to jams and reduced line speed.
Difficult calibration and low efficiency: Switching between different candy SKUs required long manual adjustment, slowing down packaging efficiency and increasing labor costs during peak orders.

“Candy products are sensitive, lightweight, and have strong product effect—ordinary metal detectors simply cannot balance sensitivity and stability,” said Thomas Reed, Quality Control Director of SweetPlus Confectionery. “We needed a professional, compact, high-precision metal detector specially designed for packaged confectionery, and that’s when we found Fanchi-tech’s FA-MD4528.”

The Solution: FA-MD4528 Metal Detector Customized for Packaged Candy

After comparing products from six international and Chinese suppliers, SweetPlus officially introduced four sets of FA-MD4528 Metal Detectors for their four high-speed candy packaging lines. This model is designed with a compact 450mm×280mm detection tunnel, fully matching the size of small and medium-sized packaged candies, with a sturdy 304 stainless steel construction, IP65 waterproof and dustproof rating, and a professional anti-interference system perfectly adapted to confectionery production environments.

1. Ultra-High Sensitivity for Tiny Metal Fragments in Candy

The FA-MD4528 adopts dual-frequency intelligent detection technology and adaptive digital filtering, which effectively suppresses the product effect of high-sugar and gelatin-based candies. For all SweetPlus candy products, the machine achieves stable and accurate detection:

Ferrous metal fragments: ≥ 0.6mm
Non-ferrous metal fragments: ≥ 0.8mm
Stainless steel fragments: ≥ 1.0mm

It can stably capture tiny metal wear debris that traditional detectors miss, completely covering all common metal contamination sources in candy mixing, forming, cutting, and packaging processes.

2. Ultra-Low False Rejects for Confectionery Products

One of the biggest advantages of the FA-MD4528 in candy applications is its excellent anti-interference performance. The intelligent algorithm automatically identifies and filters interference signals from sugar, gelatin, and packaging films, so high-sugar candies, soft gummies, and film-wrapped sweets no longer cause frequent false alarms.

After commissioning, SweetPlus’s false reject rate dropped from 11% to only 0.8%, greatly reducing product waste and raw material losses.

3. Compact Size & Stable Conveying for Lightweight Candy Packs

As shown in our factory finished and export packaging photos, the FA-MD4528 features a compact, streamlined body with a stable flat conveyor system—ideal for small, light packaged candies that easily shift or jam. The optimized conveyor speed and guide structure ensure smooth, continuous transportation without tipping, stacking, or jamming, fully matching the 120–150 packs per minute speed of candy packaging lines.

The machine’s small footprint also saves valuable production space for SweetPlus’s compact workshop layout, a key advantage for confectionery factories with limited area.

4. Easy Operation, Fast SKU Switching & Hygienic Design

The FA-MD4528 is equipped with a large touch screen control panel, which can store more than 30 groups of product parameter presets. Operators can switch between different candy types, packaging sizes, and production speeds in just 20 seconds without repeated calibration.

The fully enclosed 304 stainless steel structure, IP65 protection level, and seamless crevice-free design support daily water washing and disinfection, fully meeting the strict hygiene requirements of confectionery production and easily passing BRC Grade A and HACCP audits.

Real Operation Results: 6-Month Data from SweetPlus Confectionery

In the six months since the FA-MD4528 was officially put into use, SweetPlus has achieved breakthrough improvements in food safety, production efficiency, and cost control:

23 hidden metal fragments successfully intercepted: Including 0.6mm–1.0mm stainless steel scraps, iron shavings, and aluminum particles from production equipment, completely avoiding potential recall risks and estimated losses of more than €45,000.
93% reduction in false rejects: Weekly qualified candy waste reduced from 180kg to less than 13kg, saving over €1,600 in material costs per month.
15% improvement in line efficiency: Fast SKU switching and stable conveying reduced downtime and jams, increasing daily output and helping the company fulfill peak holiday orders on time.
100% pass rate in third-party audits: The FA-MD4528’s automatic data recording, real-time alarm log, and fault tracking functions provide complete traceability records, helping SweetPlus pass all EFSA, BRC, and customer inspections with zero non-conformity items.

“Before using Fanchi-tech’s FA-MD4528, metal detection was our biggest headache. Now, it has become our most reassuring quality control link,” Reed commented. “This machine is truly designed for packaged candy and confectionery products—sensitivity, stability, and size are all perfectly matched to our production needs.”

Why FA-MD4528 Is the Top Choice for Global Packaged Candy Manufacturers

For confectionery producers worldwide, the Fanchi-tech FA-MD4528 Metal Detector provides professional, reliable, and cost-effective contamination control:

Custom-sized tunnel for packaged candies: 450mm×280mm compact structure, perfect for small and medium-sized candy bags, boxes, and flow packs.
Ultra-high sensitivity with low false rejects: Breaks through product effect interference in high-sugar and gelatin candies.
Food-grade hygienic design: 304 stainless steel, IP65 waterproof, suitable for wet and sticky confectionery workshops.
Easy integration & simple maintenance: Compatible with most automatic packaging lines, with low failure rate and convenient after-sales support.
Global compliance certification: Meets EU, FDA, BRC, and major retail standards for food safety equipment.

Cooperate with Fanchi-tech for Your Confectionery Safety Solution

If you are a packaged candy, sweet, or confectionery manufacturer facing metal contamination risks, false reject losses, or equipment size mismatching, the FA-MD4528 Metal Detector from Shanghai Fanchi-tech Machinery Co., Ltd. will be your optimal safety solution.

We provide on-site testing, parameter customization, installation commissioning, and global after-sales support. Our team can test with your actual candy products to prove stability and sensitivity before you place an order.

Contact Us Now

Shanghai Fanchi-tech Machinery Co., Ltd.
Contact Person: Kerry Wang
Email: fanchitech@outlook.com
Website: www.fanchitechnology.com