Automatic Checkweigher for Canned Food Production Line: Improving Food Quality Control and Production Efficiency

1. Industry Background: The Importance of Weight Control in Canned Food Manufacturing

The canned food industry requires strict quality control throughout the production process.

For manufacturers producing:

• Canned vegetables
• Canned fruits
• Canned seafood
• Ready-to-eat canned meals
• Jarred food products

accurate product weight is essential for maintaining:

• Product consistency
• Customer satisfaction
• Regulatory compliance
• Brand reputation

During high-speed production, filling machines may experience small variations caused by:

• Material density changes
• Filling system fluctuations
• Production speed changes

Even small weight deviations can create problems:

Underweight products:

• Customer complaints
• Non-compliance risks
• Reduced customer trust

Overweight products:

• Increased material costs
• Reduced production profitability

Therefore, modern food factories require automatic online weight inspection solutions instead of manual sampling.

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2. Customer Production Challenges

A canned food manufacturer produces packaged canned products for domestic and international markets.

The production process includes:

Raw Material Processing

↓

Filling

↓

Can Sealing

↓

Cleaning

↓

Labeling

↓

Weight Inspection

↓

Packaging

The customer needed a reliable inspection system after filling and sealing.

Challenge 1: Manual Checking Was Inefficient

Previously, operators used manual scales to check product weight.

Problems:

• Limited sampling quantity
• High labor cost
• Slow inspection speed
• Cannot inspect every product

For continuous production lines, manual inspection could not guarantee 100% quality control.

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Challenge 2: Weight Variation During Filling

The customer experienced weight differences caused by:

• Filling machine adjustment
• Product level variation
• Production speed changes

This created risks of:

• Underfilled cans
• Excess filling
• Customer complaints

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Challenge 3: Need for Automatic Production Integration

The customer required:

✔ Continuous online weighing

✔ Automatic rejection

✔ Stainless steel food-grade design

✔ Easy integration into existing conveyor systems

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3. Why Traditional Weight Inspection Methods Were Not Enough

Manual Sampling Inspection

Traditional inspection only checks several products from each batch.

However:

A modern production line may produce thousands of cans per hour.

Sampling cannot guarantee that every product meets weight requirements.

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Offline Weight Checking

Removing products from the line for checking causes:

• Production interruption
• Increased labor cost
• Lower efficiency

The customer required a real-time inspection solution.

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4. Fanchi-tech Automatic Checkweigher Solution

To solve these challenges, Fanchi-tech provided an:

Inline Automatic Dynamic Checkweigher System

The machine was installed directly on the canned food production conveyor line.

The system automatically checks each product while moving.

Main functions:

1. Dynamic Weight Inspection

Unlike traditional static scales, the checkweigher measures products during transportation.

Advantages:

• Continuous production
• High inspection efficiency
• Reduced manual operation

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2. Accurate Weight Monitoring

The system automatically identifies:

• Underweight products
• Overweight products
• Incorrect filling conditions

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3. Automatic Reject System

When an abnormal product is detected:

The system sends a signal to the reject mechanism.

The defective product is automatically removed.

This prevents non-qualified products from entering:

• Packaging
• Warehousing
• Export supply chain

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5. Machine Configuration Matching This Application

Based on the equipment structure shown in the production line:

Application:

Canned Food / Jar Products

Inspection Stage:

After filling and sealing, before final packaging

Machine Advantages:

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6. Production Process

Canned Food Production:

Raw Material Preparation

↓

Filling Process

↓

Can Sealing

↓

Cleaning

↓

Automatic Checkweighing

↓

Reject Incorrect Weight Products

↓

Final Packaging

↓

Shipment

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7. Customer Benefits

1. Improve Product Weight Accuracy

The automatic checkweigher ensures every can meets target weight requirements.

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2. Reduce Product Giveaway

Accurate weight control reduces unnecessary overfilling.

For high-volume production, this helps manufacturers save raw material costs.

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3. Improve Production Efficiency

Compared with manual inspection:

• Faster checking speed
• Less labor requirement
• Continuous operation

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4. Enhance Food Factory Quality Management

The system helps manufacturers establish stronger:

• Quality control procedures
• Production monitoring
• Food safety management

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8. Why Choose Fanchi-tech

Shanghai Fanchi-tech Machinery Co., Ltd. specializes in:

• Automatic Checkweigher
• Food Metal Detector
• X-ray Inspection System

Fanchi-tech provides complete food inspection solutions for:

• Canned food factories
• Beverage manufacturers
• Food packaging companies
• Processing plants

Advantages:

Customized Solutions

Machines can be customized according to:

• Product size
• Product weight
• Conveyor layout
• Production speed

Professional Food Inspection Experience

Fanchi-tech focuses on reliable inspection equipment designed for international food manufacturing requirements.

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FAQ

Q1: What products can an automatic checkweigher inspect?

Automatic checkweighers can inspect:

• Canned food
• Bottled products
• Jar products
• Packaged food
• Frozen products

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Q2: Why do canned food factories need checkweighers?

Because filling variations can cause weight differences.

A checkweigher ensures every product meets the required weight.

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Q3: Can the checkweigher work with existing conveyor lines?

Yes.

The system can be integrated into existing production lines.

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Q4: Does the machine inspect every product?

Yes.

The dynamic checkweigher performs 100% online weight inspection.

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Q5: Can it reject incorrect weight products automatically?

Yes.

The automatic reject system removes non-qualified products from the production line.

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Q6: Is the machine suitable for wet food environments?

Yes.

The stainless-steel structure is suitable for food processing applications.