Throat Metal Detector


MPI’s Gravity Packaging Metal Detector is designed for free falling product in vertical packaging installations. This unit is ideal where space is limited such as above form, fill and seal machines.

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Once installed, bulk material falls through the metal detector. If any metallic contaminant, magnetic or non-magnetic is detected, the metal detector alerts the reject that will remove the contaminated package after it passes the fill and/or seal stages (depending on application installation).

  • Full 2 year warranty on complete system–giving you peace of mind
  • Hygienic food industry design-ensures compliance with good manufacturing principles
  • Harsh environment rating as standard on sensor head–ensures the unit remains stable whatever the environment
  • Semi-flexible aperture lining–resists thermal shock due to temperature change and protects the sensor for maximum operating life and minimum down time
  • All solid state electronics housed on one main board–ensures years of reliable performance offering the lowest cost of ownership on the market
  • Intuitive menu structure–simple operation for reliable performance, no expensive service calls to adjust settings
  • Full HACCP compliance–demonstrates your due diligence, ensures you and your customers are protected
  • Full pre-sale applications and custom design service–making sure we provide the right solution first time
  • Satisfaction guarantee–put simply, the unit will perform as specified or we will take it back for a full refund

Unit dimensions: L 12.125” x W 12.125” x H 5.9”

Product Flow Opening Diameter: 3.9”

Control Electronics

Digital signal processor, digital noise filter, digital balance control, digital frequency control with synthesizer, Power-Drive-Transmitter-Circuit, suitable with multi-frequency sensors, powerful graphics processing unit

Input Signals

8 free configurable, 24 V DC, e.g.: reject confirmation, air pressure monitor, conveyor belt control

Output Signals

2 potential free: Metal and Error
8 free configurable, 24 V DC, e.g.: pusher magnetic valve, optic/acoustic alarm

Measuring Method

Inductive; multi-channel operation, balanced receiver coils

Metal Detection

Ferrous, non-ferrous (e.g. aluminum or copper) and stainless steel

Product Compensation

120 storage spaces, compensation performed automatically, with Teach-Assistant

Protection Type

IP65; with Option LPW: IP66; with Option HPW: IP67


Standard: temp. -10°C to +40°C, rel. humidity 30 to 85% not condensing; Options: -40°C or +55°C

Product Temperature

-30°C to +60°C, Option: -40°C to +120°C

Power Supply

Single-Phase 110 – 240 VAC, 50/60 Hz, fuse 10 A (slow), typ. power consumption 20W, max. 60W


RS232, USB, optional Ethernet and WLAN for HACCP- and IFS-documentation


Maintenance-free, sensor calibrates itself automatically and continuously


Integrated diagnostic software, automatic selftest

Best possible sensitivities:

Fe 0.8 NFe 1.1 SS 1.3 Ø mm @ 300kHz:

  • SHARKNET® software
    • Monitor real-time inspection results and actively manage product inspection equipment from a central computer
    • Enables automatic downloading of data documentation to a Windows-based PC
    • Support required compliance with: HACCP-SQF 2000-BRC-GMP-IFS5-FSSC 22000/PAS 220
    • Remote maintenance capability by operators and Cassel technicians
    • All data is stored in an SQL database for easy export or integration if needed

How can MPI help?

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The following questions will give MPI the required information to complete a quote for your application. If you prefer to speak with us over the phone, call 1.248.887.5600, online chat or email us.

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