• Reliably detects magnetic and non-magnetic metals in fabrics, webs and flat products
  • Flat detector surface with rotatable mounting hardware to align with ascending or descending product path
  • Easy-to-install under or between conveying lines
  • Intuitive control and easy installation with autocalibration and TeachAssistant
  • Low maintenance with automatic balance and calibration control


  • Best detection sensitivities due to CASSEL’s proprietary signal analysis (4-quadrant technology)
  • Memory for up to 250 products
  • Easy-to-use with intuitive and multilingual menus
  • 4-level password system, automatic log out upon timeout
  • Documentation of all events and metal detection alerts
  • IFS and HACCP reports available on display at the touch of a button
  • Optional: Data transfer to USB interface or connection to the company network via SHARKNET® software
  • Cyclical function monitoring with Performance Validation System (PVS)


The METAL SHARK® FL and FL compact metal detectors are typically used for the inspection of non-wovens, textiles/fabrics and films.

Both detectors are particularly flat and available in widths of 1,000 - 4,000 mm (39" to 157"). The FL compact features a rotatable mount so that it can be adapted to sloping webs.

Due to the high sensitivity of the FL models, even tiny magnetic and non-magnetic metal particles (e.g. iron, aluminum and stainless steel) are detected across the entire width.

Delivery Scope

  • FL or FL compact detection unit (sensor)
  • METAL SHARK® control unit


  • Monitoring of fabric, non-woven or synthetic webs, very shallow products moving on conveyor belts
  • Quality assurance for incoming goods, outgoing goods or during ongoing production
  • Machine or end user protection, e.g. against needle


Electronics Digital signal processor, digital frequency generation, digital balance control, automatic calibration, digital noise filters, integrated flexible control functions
Input 2 analog 0 ...10 V DC (option: 4-20 mA)
8 freely configurable 24 V DC signals, e.g. for rotary encoders, product identification, buttons
Output 2 floating: “error” and “metal”
8 freely configurable 24 V DC signals
Inspection Method High-frequency magnetic field, multi-channel operation, balanced receiver coils
Metal Detection Ferrous, non-ferrous (e.g. aluminium or copper) and stainless steel
Product Compensation 250 memory locations, automatic product compensation
Protection Type Control unit: IP65
Sensor: IP54 (optional: IP66)
Ambience Control unit: -20°C to +40°C / -4°F to 104°F
Optional: -40°C / -40°F or +55°C / 131°F
Rel. humidity: 20% to 90% (non-condensing)
Sensor: -30°C to +60°C / -22°F to 140°F, optionally up to +90°C / 194°F
Product Temperature Standard: -30°C to +40°C / -22°F to 104°F
Optional: -40°C to +60°C / -40°F to 140°F
Power Supply Single-phase 110-230 V AC +/- 5%, 20 W typical (60 W max.)
Interface RS232, LAN (optional, for SHARKNET®), USB (optional)
Maintenance Very low maintenance, self-calibrating sensors
Diagnostics Integrated diagnostic software, automatic self-test
Conformity CE

Accessories & Extras

  • Washable versions for hose cleaning (LPW) or optional high-pressure washdown (HPW)
  • SHARKNET® connection for automatic documentation including HACCP, IFS or BRC standard
  • Separate mounting of the control unit (e.g. wall mounting)
  • Signaling devices (visual/acoustic)
  • Issue of a Performance Verification Certificate (proof of functionality for audits) by CASSEL service technicians, e.g. during commissioning or maintenance
SHARKNET® 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.
LPW/HPW Increase of the IP protection class by adapting the sensor seal, installing additional seals and a double housing for the control electronics
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.
High temperature extension for product Goods temperature up to +120°C (248° F) max. This option provides IP54 grade enclosure for the sensor.
Signalling devices (optical/acoustic) Stacking lights and signal horns/sirens available in different versions and IP protection classes