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  • Optimally adapted to the monitoring of entire tree trunks
  • Sensor diameter up to 1.8 m (further sizes on request)
  • Sturdy stainless steel design: particularly robust and with short metal-free zone
  • Maintenance-free with automatic balance and calibration control
  • Sturdy stainless steel design: particularly robust and with short metal-free zone
  • Highest sensitivity with 4-quadrant technology
  • Intuitive control and easy installation with autocalibration and TeachAssistant

Download data sheet METAL SHARK® OCTA


  • Sensor diameter up to 1.8 m (further sizes on request)
  • Robust against environmental influences such as high and low temperatures
  • Maximum detection performance with highest reliability in the entire detection area due to 4-quadrant technology
  • Simple setup with TeachAssistant
  • Easy to use with intuitive and multilingual menus
  • Memory for up to 250 products
  • Maintenance-free with Autocalibration
  • Documentation of all events and metal messages
  • Optional: Data transfer to USB interface or connection to the company network via SHARKNET® software
  • Extended temperature range down to -40°C with specially adapted sensor and specially equipped control unit (option)
  • 4-level password system, automatic log out after time lapse
  • Cyclical function monitoring with Performance Validation System (PVS)


The METAL SHARK® OCTA has been developed for industrial applications in the timber industry and sawmills. It detects magnetic and non-magnetic metal contaminants (iron, tombac, brass, stainless steel, etc.) precisely and reliably even under difficult conditions.

The octagonal shape makes it ideal for monitoring logs for metal parts such as shrapnel, bullet fragments, nails, screws, etc.

It is typically installed in troughed conveyor belts.


  • Digital signal processor, digital frequency generation, digital balance control, automatic calibration, digital noise filters, integrated flexible control functions.
  • 2 analog 0…10 VDC (option: 4-20 mA), 8 freely configurable 24 V DC signals, e.g. for encoders, product recognition, buttons
  • 2 floating: “error” and “metal”, 8 freely configurable 24 V DC signals
  • High-frequency magnetic field, multi-channel operation, balanced receiver coils
  • Ferrous, non-ferrous (e.g. tombac, brass, bronze, aluminium, lead etc.) and stainless steel
  • Memory for up to 250 products, automatic product compensation, with TeachAssistent
  • IP 65
  • Standard: -20°C to +40°C / -4°F to 104°F, rel. humidity 30% up to 80% (non-condensing), optionally: -40°C / -40°F or +55°C / 131°F
  • up to 70°C / 158°F
  • One phase 110-240 VAC, 50/60 Hz, typ. consumption 20 W (max. 60 W)
  • RS232, LAN (optional, für SHARKNET®), USB (optional)
  • Maintenance-free, selfcalibrating sensors
  • Integrated diagnostic software, automatic self-test

Accessories & Extras

The METAL SHARK® OCTA can be perfectly adapted to your production by various special designs and accessories.

Different temperature requirements are taken into account as well as complicated product requirements for metal detection.

  • The SHARKNET® software connects METAL SHARK® metal detectors with a central computer, providing centralized storage of all operating data plus batch and alarm documentation for HACCP and IFS compliance.
  • Significantly improves metal detection and reliability in industrial environments that do not meet the standards for electromagnetic compatibility. Various IP protection classes possible, ATEX Zone 22 possible.
  • Improves metal detection by -0.5 to -1 mm in industrial environments that do not meet electromagnetic compatibility standards, with different IP protection classes and ATEX Zone 22 possible.
  • Temperature range extended to -40°C / -40°F, resin seals remain elastic at low temperatures. Special insulation, heated enclosure and other features.
  • Temperature range extended to +55°C / +131°F, adapted enclosure, additional thermal insulation, replaceable filter fan, heat exchanger and/or active cooling units.
  • Stacking lights and signal horns/sirens available in different versions and IP protection classes.

Delivery Scope

  • Detection unit (sensor) OCTA
  • Control unit METAL SHARK® in stainless steel housing


  • Protection of tools and machines from metal parts such as nails or screws
  • Monitoring of particularly large products, especially suitable for tree trunks
  • Monitoring of bulky goods on semi-circular conveyor belts

Further information for download:

Further information can be found in the data sheet which is available here for download as PDF.