EW300 Checkweigher: Precision Weight Control for Small-Packaged Food & Pharmaceutical Products

For manufacturers of small-packaged food, pharmaceuticals, and consumer goods, accurate weight control is critical to ensuring compliance, reducing waste, and protecting brand reputation. Even minor underfills or overfills can lead to regulatory penalties, costly recalls, and eroded consumer trust. PackPro Solutions, a leading contract packager of small food and pharmaceutical products in Poland, turned to Shanghai Fanchi-tech Machinery Co., Ltd. to solve its weight inspection challenges. By deploying our EW300 Checkweigher, PackPro eliminated underfill risks, reduced waste, and secured long-term compliance with EU and pharmaceutical regulations.

The Challenge: Weight Variation & Production Inefficiency

PackPro Solutions processes over 100,000 small-packaged items daily, including 50g snack pouches, 100-tablet pill bottles, and 30ml liquid vials. In early 2025, a batch of 50g organic nut pouches was found to have an average underfill of 1.2g, triggering a warning from the Polish National Food and Veterinary Institute (NFVI) and a temporary production suspension. The company’s legacy checkweighing system exposed critical flaws:

Low Accuracy: The old checkweigher had a measurement tolerance of ±2g, failing to detect the 1.2g underfill in small 50g pouches.
High False Rejects: Unstable conveying caused frequent tipping of small packages, leading to false rejects of 10% of production—wasting 10,000 qualified items weekly.
Slow Integration: Bulky, outdated equipment required manual calibration between SKUs, slowing production by 20% during peak demand.
Poor Traceability: The legacy system lacked detailed weight data logging, making it impossible to provide audit-ready reports for regulatory inspections.

“Our reputation is built on precision and compliance, but our old checkweigher was putting both at risk,” says Jan Kowalski, Operations Director at PackPro Solutions. “We needed a high-precision, fast, and stable checkweigher that could handle our diverse small-packaged portfolio without slowing our lines.”

The Solution: Fanchi-tech EW300 Checkweigher

After evaluating 7 competitors, PackPro selected the EW300 Checkweigher for its ultra-high accuracy, compact design, and compliance with global standards. As shown in our factory photos, the EW300 features a 304 stainless steel frame, smooth white conveyor belt, touch-screen control panel, emergency stop button, and transparent safety guard—all engineered for small-packaged food and pharmaceutical production lines.

1. Ultra-High Precision for Small Packages

The EW300 uses high-precision load cells and adaptive signal processing to achieve measurement accuracy of ±0.1g, even for small 50g pouches and 30ml vials. Key capabilities:

Underfill/Overfill Detection: Identifies deviations as small as 0.5g, ensuring compliance with EU MDR and FDA weight accuracy requirements.
High-Speed Operation: Processes up to 200 packages per minute, matching the speed of PackPro’s packaging lines.
Adaptive Calibration: Automatically adjusts to different package sizes and materials (plastic, glass, aluminum), eliminating manual calibration between SKUs.

During on-site validation, the EW300 detected 100% of test underfill and overfill conditions in 50g snack pouches, 100-tablet pill bottles, and 30ml liquid vials.

2. Stable Conveying for Fragile Small Packages

The EW300’s conveyor system is designed to handle fragile small packages without tipping or jamming:

Smooth Belt & Guide Rails: Prevents packages from shifting or tipping, ensuring stable positioning during weighing.
Soft Reject Mechanism: Gently removes non-conforming packages from the line without damage, reducing waste by 30%.
Adjustable Height: Accommodates packages of varying heights, from 50g pouches to 200ml bottles.

3. Hygienic Design & Intelligent Operation

The EW300’s crevice-free 304 stainless steel construction supports daily high-pressure washdowns, while its food-grade conveyor belt resists residue buildup. Key features:

Easy-to-Clean Surfaces: Seamless stainless steel construction eliminates crevices where food or pharmaceutical residues can accumulate, reducing cleaning time by 35%.
Fast SKU Switching: The touch-screen control panel stores 50+ product presets, enabling SKU switching in 15 seconds—down from 15 minutes with manual calibration.
Audit-Ready Traceability: Logs 1,000,000+ weight records, including time-stamps and batch numbers, for regulatory and third-party audits.

The Outcome: Zero Regulatory Warnings & 22% Faster Production

In the 10 months since deploying 6 EW300 Checkweighers:

47 Critical Underfill/Overfill Incidents Intercepted: Detected deviations as small as 0.5g in small packages, preventing 3 potential regulatory warnings and €72,000 in estimated recall costs.
95% Reduction in False Rejects: Weekly package waste dropped from 10,000 to 500, saving €2,400 monthly in material and labor costs.
22% Faster Production: Fast SKU switching and stable conveying increased line efficiency, adding 11 hours of weekly capacity during peak holiday demand.
100% Audit Compliance: Passed all NFVI and EU regulatory inspections with zero non-conformities, securing a 5-year contract extension with its largest pharmaceutical client.

“The EW300 didn’t just fix our weight control problem—it transformed our approach to quality,” says Kowalski. “We now have complete confidence that every small package leaving our facility is accurate, compliant, and safe for consumers.”

Why Fanchi-tech’s EW300 Leads in Small-Pack Checkweighing

For small-packaged food and pharmaceutical manufacturers, the EW300 Checkweigher delivers:

Precision Accuracy: ±0.1g measurement tolerance, ensuring compliance with strict weight regulations.
Stable Conveying: Gentle handling of fragile small packages, reducing damage and waste.
Hygienic Design: 304 stainless steel and washdown-ready construction meet strict food safety and pharmaceutical standards.
Intelligent Operation: Fast SKU switching and real-time data logging streamline compliance.

Secure Your Small-Pack Production Lines Today

If you’re a manufacturer of small-packaged food, pharmaceuticals, or consumer goods facing weight variation risks, regulatory non-compliance, or production inefficiencies, contact Kerry Wang to arrange a free virtual demo or on-site trial of the EW300 Checkweigher. We’ll test the unit with your specific products to validate performance for your line speed and SKU mix.

Shanghai Fanchi-tech Machinery Co., Ltd.

Email: fanchitech@outlook.com
Website: www.fanchitechnology.com