Metal Detection in Powdered Products with Bulk Flow Gravity

• Customization: Available
• After-sales Service: Support
• Warranty: 12month
• Model NO.: VMD-9
• Certification: CE, ISO
• Condition: New
• Customized: Customized
• Alarm Form: Sound and Light Alarm
• Transport Package: Strong Wooden Case
• Specification: 0.9cbm
• Trademark: vikingdetector
• Origin: Made in China
• HS Code: 8543709100
• Production Capacity: 50 Pieces/Weeek

Product Description

Product Description

 

Metal Detection in Powdered Products with Bulk Flow Gravity Feed

High-Sensitivity Gravity Metal Detectors for Fine Powders, Granules, and Dry Bulk Flow Materials

 

Overview

Metal contamination in powdered or granular products poses a serious risk to equipment, product quality, and consumer safety. The Gravity Flow Metal Detection System offers precise, continuous inspection of powdered products in free-falling (bulk gravity) lines, ensuring effective removal of ferrous, non-ferrous, and stainless-steel contaminants - even in high-volume, high-speed processes.

Perfectly suited for industries such as food (flour, milk powder, cocoa, spices), chemical (powders, resins), pharmaceutical (nutraceuticals, APIs), and plastics (granules, compounds), this compact and efficient solution supports compliance with international safety and quality standards (HACCP, IFS, BRCGS, FDA, ISO22000).

 

Key Features

Gravity-Fed Free-Fall Detection

• Designed to inspect powders or granules as they fall through a vertical pipe by gravity.

• Can be installed below silos, hoppers, mixers, bagging machines, or VFFS systems.

High Detection Sensitivity

• Detects Ferrous ≥ 0.3 mm, Non-Ferrous ≥ 0.4 mm, and Stainless Steel ≥ 0.5 mm particles.

• Advanced digital signal processing (DSP) ensures stability and accuracy, even in dusty or conductive environments.

Automatic Reject Mechanism

• Equipped with a quick-acting flap valve, diverter chute, or air-blast rejector to isolate contaminated product instantly.

• Optional reject bin for secure collection and traceability.

Hygienic, Stainless Steel Construction

• SUS304 or SUS316 stainless steel frame and contact parts.

• Dust-proof and easy-to-clean design, ideal for sanitary zones.

Compact, Easy-to-Integrate Design

• Fits easily into vertical production lines.

• Flange or clamp fittings available for seamless system integration.

 

Technical Specifications

Parameter	Specification
Product Type	Powders, granules, spices, flour, starch, milk powder, plastic pellets
Pipe Diameter	50mm - 250mm (customizable)
Detection Sensitivity	Fe ≥ 0.3mm, SUS ≥ 0.5mm (in air flow)
Material	SUS304 / SUS316 Stainless Steel
Reject Mechanism	Pneumatic Flap / Diverter Chute / Air Jet
Interface Options	7" Touchscreen, multilingual support
Data Storage	100+ product recipes, 100,000+ inspection logs
Communication Ports	Ethernet, USB, RS232/RS485, Modbus TCP (optional)
Power Supply	100-240V AC, 50/60 Hz
Operating Temp. Range	-10°C to +50°C
Protection Class	IP54 or IP65 (upgradeable)

 

Typical Application Areas

Industry	Application Examples
Food Production	Wheat flour, rice flour, cocoa powder, sugar, milk powder, baking mixes
Pharmaceuticals	API powders, vitamins, protein powders, supplements
Chemical Industry	Powdered additives, pigments, catalysts, fertilizer powders
Plastics & Polymers	Plastic pellets, masterbatch compounds, resin powders
Animal Feed	Nutritional premixes, powdered feed, additives

 

Advantages of Gravity Metal Detection for Powders

High Throughput

• Allows inspection of several tons per hour depending on pipe size and bulk density.

• Ideal for high-speed packaging lines, bulk bag fillers, and vertical conveyors.

Auto-Learn and Product Effect Compensation

• Compensates for product "effect" (conductivity of salt, moisture, or minerals).

• Improves accuracy by reducing false alarms in conductive powders like spice blends or enriched flour.

Data Logging and Traceability

• Automatically logs each rejection with time, product name, and reason.

• Supports food safety audits (e.g., IFS, BRC, HACCP).

24/7 Continuous Operation

• Designed for non-stop production with minimal maintenance.

• Maintenance-friendly modular design for quick part replacement.

 

Optional Features

• Dust Extraction Port
  Connects to central vacuum to maintain clean inspection area.

• Reject Confirmation Sensor
  Verifies if rejection was successful, logs failure alerts.

• ATEX Explosion-Proof Configuration
  For use with flammable dusts or chemicals.

• Metal Detection with Checkweighing
  Inline combo option for gravity filling lines.

• Integration with PLC / SCADA
  Real-time monitoring of inspection status and alarms.

 

Customer Success Snapshot

Premium Spice Manufacturer - India
By installing two gravity-fed metal detectors:

• Reduced product recall risk by 90%

• Passed stringent BRC audit with zero non-conformances

• Increased bagging speed by 20% due to uninterrupted inspection

 

Compliance and Certification

• CE / ISO9001 certified

• Meets requirements for:

  • FDA (USA)

  • HACCP

  • IFS / BRCGS food safety standards

  • EHEDG hygiene design (optional upgrade)

 

Installation Guide

• Mounting Location: Between hopper discharge and filling machine or mixer.

• Mounting Type: Clamp, flange, or customized frame with brackets.

• Reject Orientation: Side or bottom (configurable based on space).

• Air Supply: 4-6 bar for pneumatic reject system.

 

FAQs

Q: Can it work with metalized powders or conductive materials?
A: Yes. Advanced compensation filters can be adjusted to avoid false positives due to product effect.

Q: How often should calibration be done?
A: Routine auto-calibration is available. Manual test validation is recommended daily or per shift using certified test wands.

Q: Can I connect it to my plant control system?
A: Yes, via Modbus, Ethernet, or optional OPC-UA modules.

 

Conclusion: Critical Protection for Powdered Production Lines

The Gravity Flow Metal Detector for Powders is a must-have system for any bulk processing line handling dry, fine, or free-flowing materials. Combining high sensitivity, robust design, and easy integration, it ensures that your powders reach customers free from metallic contaminants, while maintaining productivity and regulatory compliance.

 
The gravity metal detector is used in the food processing industry to detect and remove non-ferrous metals. It can be used to remove nickel, lead, and zinc as well as any other non-ferrous metal that may be present in your powdered products.

The gravity metal detector works by using the density of the materials being separated to determine if something is present in the sample. The heavier the material, the higher it will be in the sample. The gravity metal detector works by separating materials based on their weight in order to identify any unwanted materials that may be present in your powdered products.

Metal Detection in Powdered Products with Bulk Flow Gravity

Metal contaminants are a major concern in powdered products. The main metals that can be found in these products are iron, zinc, nickel, copper and lead. These metals have the potential to contaminate the entire product line. This can be a significant problem especially if it is not detected early on during production or processing.

A metal detector is an important tool used to detect these metals quickly and effectively. It can also help prevent contamination by detecting the presence of any contaminants before they enter your plant's environment or product lines. A metal detector can also detect foreign objects such as screws and bolts that may be left behind during processing or cleaning operations.

When using a metal detector for powder processing applications, there are three main types of portable detectors: gravity-driven, magnetic-driven and electronic-driven. Each type has advantages over the other types and should be considered based on your needs

★Product features :
Full SUS 304 built structure
Upright feed structure .automatic free fall
Can detect the magnetic and non magnetic metals ( for example
Ferrous.cooper. Can independent place beside crush machine .all raw materials direct pass through metal separator . Prevent have metal scraps mixed into food . Keep food conform to HACCP  )
Easy operator and have bracket and feeding Hooper.easy for customer use .  

★Application filed :Special for food granule.candy .chocolate and so on food

Feed tube diameter	Yield	Sensitive :Fe :SUS)
35MM	300KG/HR	Fe:0.6mm  sus:1.0mm
50MM	800KG/HR	Fe:0.8mm  sus:1.5mm
70MM	1800KG/HR	Fe:1.0mm  sus:1.8mm
120MM	2000KG/HR	Fe:1.5mm  sus:2.5mm

★Detect sensitivity :