Conveyor Belt Metal Detector for Critical Control Points
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Product Details
| Customization: | Available |
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| After-sales Service: | Installation Services |
| Warranty: | 12months |
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Basic Info.
- Model NO.
- CSD-4020
- Certification
- CE
- Condition
- New
- Customized
- Customized
- Alarm Form
- Sound and Light Alarm
- Sensitivity1
- Ferrous 0.6mm
- Sensitivity2
- Non Ferrous 1.0mm
- Sensitivity3
- Stainless Steel 1.5mm
- Power Supply
- 220V 50Hz
- Whole Machine Size
- 1350*780*1100mm
- Material of The Machine
- Food Grade Stainless Steel
- Length of Conveyor Belt
- 1350mm[Customized]
- Material of The Belt
- Food-Grade PVC
- Conveyor Height From The Ground
- 700+-50 [Customized]
- Rejection Systerm1
- Drop Down, Fall Fell,Air Blast
- Alarm System
- Sound and Light, Belt Stop
- Belt Speed
- 30m/Min [Customized]
- Language
- English
- Transport Package
- Wooden Box
- Specification
- 1450*900*1245mm
- Trademark
- Viking
- Origin
- China
- HS Code
- 8543709100
- Production Capacity
- 5000
Product Description
Conveyor Metal Detector: A Concise Guide
1. Introduction
A conveyor metal detector is a crucial device across diverse industries, safeguarding product quality and consumer safety. It's engineered to spot metallic contaminants within items transported on conveyor belts, preventing potential harm from metal fragments and shielding machinery.
2. Working Principle
This detector functions on electromagnetic induction. A transmitter coil generates a magnetic field above the conveyor. When a metal object passes through, it disturbs the field. The receiver coil detects this disruption and relays an electrical signal to the control unit. Advanced models use algorithms to filter false positives from vibrations or electrical interference, ensuring precision.
3. Types of Conveyor Metal Detectors
3.1. Balanced Coil Metal Detectors
The most prevalent type, featuring precisely balanced coils. Their electrical equilibrium is disrupted when metal enters the zone, triggering an alarm. Renowned for high sensitivity and stability, they're ideal for food and pharmaceutical sectors where minute contaminants matter.
3.2. Pulse Induction Metal Detectors
These emit short, powerful magnetic pulses. Metal objects induce eddy currents, generating a secondary magnetic field that's detected. Great for spotting larger, deeply buried metals, they're common in mining and recycling to handle bulk materials with potential big metal pieces.
3.3. Multi-frequency Metal Detectors
Operating at multiple frequencies, they adapt to different product traits. In food production, where products vary in moisture and density, they optimize detection by adjusting frequencies, cutting false alarms.
4. Key Components
4.1. Conveyor Belt
Made of non-metallic materials like polyurethane, it must be properly sized and speed-set for the application. A food packaging line might need a wide, fast belt for high volume while ensuring inspection quality.
4.2. Detection Head
Housing transmitter and receiver coils, it creates a uniform magnetic field. Its dimensions vary with product size; sometimes multiple heads are used for comprehensive detection.
4.3. Control Panel
The operator's interface, showing detection results and settings. Modern ones are touchscreen, with data logging for quality control and traceability.
4.4. Reject Mechanism
When metal's detected, mechanisms like pneumatic pushers or flap diverters remove the item. The choice depends on product attributes and conveyor layout.
5. Applications
5.1. Food Industry
Essential from ingredient to packaging stages, it stops metal from processing equipment getting into food. In canned goods or bakery items, it ensures safety and quality.
5.2. Pharmaceutical Industry
Must-have for drug manufacturing to screen tablets, capsules, etc. Tiny metal specks in injectables can endanger patients, so detectors maintain sterility.
5.3. Packaging Industry
Prevents metal objects from being packaged with consumer goods. In electronics assembly, it avoids mispacked screws, reducing returns.
5.4. Recycling Industry
Separates metals from waste on conveyor belts, enhancing recycling efficiency and aiding environmental conservation.
6. Factors Affecting Detection Performance
6.1. Product Characteristics
Moisture, salt content, size, and shape of products can interfere with detection. High-moisture fruits or salty pickles might cause false alarms or misses.
6.2. Conveyor Belt Speed
Faster belts reduce product exposure time, risking missed detections. But slowing down too much hampers production flow; a balance is key.
6.3. Environmental Interference
Nearby machinery or power lines can disrupt the detector. Shielding and vibration-damping measures combat electromagnetic interference and vibrations.
6.4. Metal Type and Size
Ferrous metals are easier to detect than non-ferrous or some stainless steel grades. Smaller objects are harder to spot and demand higher sensitivity.
7. Installation and Calibration
7.1. Installation
Place the detector stably, level the platform, and install the conveyor belt smoothly. Position the detection head correctly and allow clearance for maintenance.
7.2. Calibration
Regularly calibrate using known metal samples to set sensitivity levels. Some advanced models have automatic calibration for operator ease.
8. Maintenance and Troubleshooting
8.1. Maintenance
Clean the belt, inspect the detection head and electrical connections, and lubricate moving parts to prolong the detector's life.
8.2. Troubleshooting
For false alarms, check interference and adjust settings. If detection fails, examine calibration, the detection head, or belt speed.
| Details Tunnel size |
40*12cm | 40*15cm | 40*20cm | 50*15cm | 50*20cm | 50*25cm | 50*30cm |
| Sensitivity Fe(mm) | 0.8 | 1.0 | 1.2 | 1.0 | 1.2 | 1.5 | 2.0 |
| Sensitivity SUS(mm) | 1.5 | 2.0 | 2.5 | 2.0 | 2.5 | 3.0 | 3.5 |
| Detection height | 120 | 150 | 200 | 150 | 200 | 250 | 300 |
| Detection width | 400 | 500 | |||||
| Belt speed | 10-35 meters per minute adjustable |
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| Alarm method | Light and sound and optional reject | ||||||
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