Automated Checkweigher Solutions for Quality Control in Manufacturing

1. Introduction

Automated checkweighers are critical quality control (QC) systems in modern manufacturing, ensuring product weight compliance, reducing waste, and maintaining regulatory standards. These high-speed, precision instruments verify the weight of individual products in real time, rejecting underweight or overweight items to prevent non-conformance, customer complaints, and regulatory penalties.

2. Key Features of Automated Checkweighers

2.1 High-Speed Precision Weighing

• Accuracy: ±0.1g to ±5g (depending on product weight and speed)

• Throughput: 100–600 items per minute (adjustable based on product size)

• Dynamic Weighing: Measures products in motion on conveyor belts without stopping

2.2 Advanced Rejection Systems

• Pneumatic Pushers – For gentle product rejection

• Air Jets – For lightweight items (e.g., snacks, pharmaceuticals)

• Diverter Arms – For heavy or fragile products

2.3 Smart Quality Control Integration

• Statistical Process Control (SPC) – Monitors trends to detect filling deviations

• Real-Time Data Logging – Stores weight data for traceability (FDA 21 CFR Part 11 compliance)

• ERP/MES Connectivity – Integrates with SAP, Oracle, or SCADA for automated reporting

2.4 Hygienic & Robust Design

• Stainless Steel (IP69K-rated) – For food, pharmaceutical, and chemical industries

• Washdown-Ready Models – Suitable for wet or high-hygiene environments

• Modular Construction – Easy to clean and maintain

3. Industry-Specific Implementations

3.1 Pharmaceutical Manufacturing

• USP <41> compliance for active pharmaceutical ingredients

• 21 CFR Part 11 electronic records with audit trails

• Isolator integration for potent compound handling

3.2 Food & Beverage Production

• HACCP-compliant metal detection combo systems

• Washdown-ready IP69K stainless steel construction

• Net content verification per EU FIC Regulation

3.3 Automotive Components

• IATF 16949 process validation

• Dimensional-weight correlation for assembly kits

• Traceability marking with laser engravers