Cookie settings

Here you can set the use of cookies according to your preferences.

Technical cookies

are necessary for the proper functioning of the site. Technical cookies must always be active (they cannot be deactivated individually), therefore no consent is given for their use.

Analytical cookies

they allow us to understand how you use the site so that we can improve it. Analytical cookies allow us to measure website performance (number of visits and traffic sources). We process the data obtained in this way in summary, without the use of identifiers pointing to a specific user.

Personalized cookies

store information about your personal site settings. We need personalized cookies in order to adapt the website and its behavior as much as possible to your needs and interests.

Advertising cookies

set up through this site by our advertising partners. Advertising cookies allow us to display such content that will be interesting and useful just for you.

We use cookies

We use cookies to analyze traffic, remember preferences and improve the usability of the website. To give your consent, click on the "I Agree" button.

Settings I agree

You can refuse consent at any time.

Skip to content Skip to menu

Our company is a specialist in field of magnetic separation

We develop, produce and apply devices for magnetic separation. Our magnetic separators are designed and manufactured exactly in a made-to-measure way as per your needs.

18. 4. 2024

How to detect metal contaminants in salt production? (case study)

Initial status

We were contacted by a salt producer with a request to design a metal detector. They were already using an older metal detector, but its sensitivity was completely unsatisfactory for the customer. The original metal detector showed very poor detection results - it couldn't even detect a 10-mm iron ball!

The customer's request was to detect 4-mm iron balls in salt packets.


Problem

After analyzing the existing metal detector, we found that it could not be set to a higher sensitivity. It was a technologically outdated type of metal detector. To achieve the required sensitivity, it was necessary to consider purchasing a new device.

Solution

The packaging technology had to be modified for the detector to work reliably. Therefore, we suggested that we would supply a suitable metal detector and also manufacture a support structure for the detector that would meet the requirements for the proper functioning of the metal detector. We would also install the detector as well as the support structure and we would set the detector for individual products and train the operating staff.

The salt is packed in 1 kg packets, but the customer requested to detect the metals in the packed bales (each containing 12 one-kilogram packets).

Due to the package size, we opted for the tunnel detector METRON 05 D (with an aperture of 500 x 200 mm).

During the production of the detector support structure, we paid attention to the “metal-free zone” that is essential for the proper metal detector functioning.

We installed the device, set up the detector and trained the operator. Thanks to the right detector sensitivity adjustment we achieved the required sensitivity, i. e., a 3 mm iron ball could be successfully detected!This result was better than the customer requested. That is why he is satisfied with our solution.

The delivery of the metal detector included a beacon with siren to alert the wrapper operator to the detection of a foreign metal object.

Benefits of using the tunnel metal detector METRON 05 D

  • reliable detection of 3 mm iron contaminants
  • stable and reliable detector operation
  • satisfaction with the support structure (including the metal-free zone)
  • contentment with the installation and skill level of service technicians

Applied equipment: Tunnel metal detector METRON 05 D

Advantages of tunnel metal detector Metron 05 D

  • Two-part demountable tunnel detector = easy installation
  • Maintenance-free, long-term and year-round operation
  • Economical version - attractive price / performance ratio
  • Robust detector design for maximum working life
  • Proven by years of use in rough industrial environments
  • Digital signal processing for best detection
  • Predefined, optional standard modes

Top