Combination Metal Detector and Checkweigher

Available Product Options and Configurations

Metal Detector Specifications

• Detection Types: Ferrous, Non-Ferrous, Stainless Steel

• Frequency Range: Multi-frequency or tuned-frequency systems

• Tunnel Sizes: Standard and custom openings available to match product size

• Sensitivity Settings: Adjustable for product effect, packaging material, and contaminant size

• Metal-Free Zone Requirements: Customizable conveyor length and spacing to minimize interference

Checkweigher Specifications

• Load Cell Type:

  • Strain-gauge (standard)

  • Electromagnetic force restoration (high-precision option)

• Weighing Capacity: Up to 10 kg (varies by model)

• Accuracy: ±0.1 g to ±1.0 g, depending on product speed and configuration

• Speed Range: Up to 250 ft/min

Reject Systems

• Available Types:

  • Air blast (for lightweight products)

  • Pusher arm (for rigid items)

  • Drop belt (for bulkier goods)

  • Flipper or diverter (for boxed or tray-packed items)

• Reject Bin Options: Lockable, bin-full sensors, illuminated reject indicators

Construction and Environment

• Frame and Housing Material: 304 or 316 Stainless Steel

• IP Rating:

  • IP65 (standard)

  • IP69K (optional for washdown environments)

• Conveyor Belts: FDA-approved, antimicrobial, or heat-resistant belts available

• Mounting: Floor stand with leveling feet or casters; adjustable height

Controls and Interface

• HMI Display:

  • Touchscreen (7"–10")

  • Multilingual interface

  • Recipe storage (up to 100+ products)

• Data Connectivity:

  • Ethernet/IP, Modbus TCP, USB download

  • OPC-UA or SCADA integration (optional)

• User Access: Password levels, operator logging, audit trail support

Certifications and Compliance

• Certifications Available:

  • NTEP, CE, ISO 9001, RoHS, UL

  • 21 CFR Part 11 compliance (pharma applications)

• Industry Standards Supported:

  • FDA, USDA, FSMA, GFSI, HACCP, IFS, BRC

Ideal Applications for MPI’s Combination Metal Detector and Checkweigher

Food Processing and Packaging

Products: Packaged snacks, baked goods, frozen meals, ready-to-eat meals, protein bars, dairy products, spices, and confectionery.
Why it's ideal:

• Detects ferrous, non-ferrous, and stainless-steel metal contaminants in packaged foods

• Ensures net weight compliance for legal-for-trade requirements

• Supports FSMA, USDA, HACCP, and BRC food safety protocols

• Compact design saves space on packaging lines while boosting quality control.

Pet Food Manufacturing

Products: Canned or pouched wet food, kibble bags, dehydrated treats, powdered supplements
Why it's ideal:

• Protects against tramp metal from grinding or mixing processes

• Ensures consistent weight for consumer satisfaction and regulatory compliance

• Withstands dusty or greasy environments with washdown-capable stainless construction

• Helps maintain quality in high-volume production with fast reject response

Nutraceuticals and Dietary Supplements

Products: Bottled capsules, sachets, pouches, gummies, powders, and blister packs
Why it's ideal:

• Meets strict cGMP, 21 CFR Part 11, and FDA regulations

• Verifies dosing accuracy and rejects underfilled/overfilled packages

• Logs and stores inspection data for audits and traceability

• Compact footprint integrates easily with cartoners or bottle fillers.

Pharmaceutical Packaging

Products: Boxed or bottled medications, blister packs, medical powders
Why it's ideal:

• Ensures both contaminant-free and correctly dosed packages leave the facility

• Electromagnetic load cells provide ultra-precise weight control.

• Available with CFR-compliant audit trails and secure user access

• Works seamlessly with serialization and tracking systems

Consumer Packaged Goods (CPG)

Products: Personal care items, hygiene products, household cleaners in pouches or boxes
Why it's ideal:

• Ensures tamper-free, contaminant-free packaging

• Prevents overfilling (reducing material waste) and underfilling (avoiding returns or fines)

• Air-blast or flipper reject options suit high-speed production lines

• Maintains compliance with global retail specifications

Bakery and Snack Foods

Products: Cookies, crackers, granola bars, baked chips, bagged mixes
Why it's ideal:

• Detects fragments from mixers, slicers, or conveying equipment

• Verifies correct fill weights for consumer satisfaction and retailer standards

• Easily handles high-speed, continuous-flow packaging operations.

• Sanitary design accommodates allergen changeovers and washdown needs.

Best Use Case Summary

The MPI Combo System is ideal when:

• Your line needs both metal detection and weight verification in a compact footprint.

• You want to reduce product giveaway while staying compliant.

• Metal detection and checkweighing need to happen inline without extra labor

• You operate in regulated industries requiring full traceability and documentation.

• You aim to minimize downtime, false rejects, or manual inspection steps