Metal detection systems for free-fall applications

Regardless of whether they come as pieces or powder, whether they are fine or coarse, bulk goods are found everywhere you look in the world of industry. Our metal detection systems for free-fall applications help you achieve the best results in quality assurance, the inspection of incoming goods and the protection of machinery, and they do so for the entire spectrum of hygiene requirements, from low to the very highest.

Our free-fall systems integrate quickly and easily into your existing piping. Thanks to innovative HRF technology, the systems have the highest scanning sensitivity for all metals and automatically remove metallic contaminants with the right reject mechanisms depending on the material’s properties. More information on how Sesotec metal detectors and separators work is available here.

That's what distinguishes our products

Easy to use

Highest detection accuracy

Easy cleaning and maintenance

Easy installation

The benefits in detail  

  • Our different reject mechanisms make it possible to perfectly adapt the system to the specific requirements of customers and their materials.
  • Innovative high-resolution frequency (HRF) technology offers the highest scanning sensitivity for all metals.
  • Our detectors can be used for a wide range of goods, such as plastic granulate, powdered foods, sugar, salt, chemical additives, herbs, tea, fibers, wood pellets, foil chips, granola, noodles, crisps, powdered milk, flour and much more.
  • Sesotec metal detectors help you meet IFS, BRC and FSMA requirements.
  • The modular machine design makes it possible to perfectly adapt the system to your needs.
  • Our metal detection systems feature an auto-learn function to best compensate for the intrinsic conductivity of the inspected material.
  • The metal separators are easy to integrate into existing piping systems thanks to their low installation height, even with large nominal widths.
  • The standard connection system from Jacob Pipeworks enables quick assembly with little effort.
  • The GENIUS+ and PRIMUS+ control units with graphic LCD displays ensure extremely easy handling.
  • All metal parts that come into contact with products are made entirely out of stainless steel 1.4301 (AISI 304).
  • Thanks to UL and CSA certification, our systems have been approved for the North American market.

Functional principle

Product video

Design and alternative configurations

HRF technology

The special frequency of the detection signal facilitates enhanced detection and the removal of ferrous and non-ferrous metals, and even minute particles of non-magnetic stainless steel. The GENIUS+ and PRIMUS+ evaluation electronics offer the following:  

  • Digital signal processing and quartz-stabilized detection frequency
  • State-of-the-art microprocessor technology with self-monitoring, self-calibration and temperature compensation
  • Product compensation with auto-learn function
  • Multi-product memory for up to 240 products
  • Password protection
  • EMC combination filter to suppress external interference


Different reject mechanisms

Apart from the standard reject mechanism, we also offer a round version for the inspection of materials containing powder, as well as a hopper-shaped alternative for the inspection of special materials, or for special requirements relating to cleanability and wear protection. You can choose between different cleaning and self-cleaning systems depending on the reject mechanism.


Our systems have visual and acoustic signaling units, a digital event counter and a compressed-air monitoring system.


The modular design makes it possible to adjust the free-fall height and the position of the contamination outlet.

Special designs

When it comes to specialized applications, we offer a high-temperature design, a special design for abrasive bulk goods and an ATEX-compliant version.


High-performance metal separator forresin and compound manufacturers
Product Brochure

High-performance metal separator for free-fall applications
Product Brochure

Metal separator for plastics applications
Product Brochure

RAPID 4000
Metal separator for free-fall applications with low hygienic requirements
Product Brochure

RAPID 5000
Metal separator for free-fall applications with powders and fine-grained granulates
Product Brochure

RAPID 6000
Metal separator for free-fall applications with coarse-grained or flaky products
Product Brochure

RAPID 8000
Metal separator for free-fall applications with coarse-grained or flaky products and high hygienic requirements
Product Brochure


Contaminant Detection in the Meat Industry
Intuitive operation of a metal detector and its influence on the total cost of ownership
Metal Detection steps up
Important factors when buying a metal detector for plastics processing machines
Detection of Plastics with X-Ray Systems in the Food Industry
Metal contamination in plastics processing – causes and countermeasures
Almi: Food metal detectors inspect flavourings and spices
Food Metal Detectors for Kalustyan
For decades Brückner has been relying on Sesotec metal separators
Sesotec metal detectors for turkish coffee from egypt
SABIC chooses Sesotec high performance metal separator
Production security through machine protection in the plastics industry
High scanning sensitivity for all metals at the noodle filling
Product Purity. Leading Contaminant Detection Technologies for the Food Industry
Complete product range for consistent contaminant inspection in the meat industry
Optimum Productivity in the Plastics Industry
All about PET
RAPID 8000
RAPID 6000
RAPID 5000
RAPID 4000
Sesotec live! - Our upcoming exhibitions