Skip to content

Metal detector for forestry and sawmills


  • Perfectly suited to the monitoring of entire timber logs
  • Sturdy aluminium design
    particularly robust, weatherproof, with short metal-free zone
  • Highest detection performance and noise immunity
    4-quadrant technology, Power Drive option
  • Maintenance-free
    automatic calibration and automatic balance control
  • Easy installation and intuitive operation
  • Remote control and remote maintenance (SHARKNET® option) with documentation of all settings, metal alarms etc.




The METAL SHARK® BIG RD has been developed directly for industrial applications in the timber industry and sawmills.

The detector detects magnetic and non-magnetic metal contaminants (iron, tombac, brass, stainless steel, etc.) precisely and reliably even under difficult conditions.

Due to its round shape it is 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 V DC (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, e.g. solenoid valve, optical/acoustic alarm
Inspection method
High-frequency magnetic field, multi-channel operation, balanced receiver coils
Metal detection
Iron, non-ferrous (e.g. tombac, brass, bronze, aluminium, lead etc.) and stainless steel
Product compensation
250 memory spaces, automatic product compensation, with TeachAssistant
Enclosure rating
IP 65
Environmental conditions
Standard: -30°C to +40°C / -22°F to +104°F
UL version: -20°C to +40°C / -4°F to +104°F
Optionally: to -40°C / +40°F or +55°C / +122°F
rel. humidity 20% to 90% non-condensing
>95% relative humidity (condensing) with closed switch cabinet
Temperature of goods inspected
up to +70°C / +158°F
Power supply
1 phase 110-230 V AC +/- 5% 20 W typ. (60 W max.)
RS232, LAN (optional, for SHARKNET®), USB (optional)
Maintenance-free, sensors calibrate themselves
Integrated diagnostic software, automatic self-test
CASSEL Metalldetektor BIG RD Frontansicht

Accessories & Extras

The METAL SHARK® BIG RD 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.

Fast Power Drive (FPD)
Improves metal detection and reliability in industrial environments that do not meet electromagnetic compatibility standards. Various IP protection classes possible, ATEX Zone 22 possible.
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.
Temperature extension cold
Temperature range extended to -40°C / -40°F, resin seals remain elastic at low temperatures, special insulation, heated enclosure and other features.
Temperature extension hot
Temperature range extended to +55°C / +131°F, adapted enclosure, additional thermal insulation, replaceable filter fan, heat exchanger and/or active cooling units.
Signalling devices (optical/acoustic)
Stacking lights and signal horns/sirens available in different versions and IP protection classes.

Delivery Scope


Further information for download:

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