Electric Stunner for Fish — Industrial Humane Stunning System | LEKON

Industrial Electric Fish Stunner — Humane, Efficient, Fully Automatic

The LEKON Electric Fish Stunner is an industrial-grade stunning system engineered to humanely and efficiently render fish unconscious prior to bleeding and further processing. Using precisely controlled electrical pulses, the system induces immediate, reversible unconsciousness without causing stress or suffering — meeting the growing global demand for welfare-compliant fish slaughter practices.

Designed for integration into existing processing lines or as a standalone unit, the LEKON electric stunner handles a wide range of commercially processed species including salmon, trout, cod, sea bass, sea bream, tilapia, and pangasius. Its fully automatic operation requires no dedicated operator, reducing labor costs while ensuring consistent stunning results.

Advanced Three-Mode Control System

Unlike single-mode competitors, the LEKON electric fish stunner features three selectable control modes to accommodate different fish species and processing requirements:

• Mode 1 — AC Input Voltage Control (Recommended): The system regulates and maintains AC input voltage at the set target. An automatic voltage regulator compensates for load variations as each fish passes through the stunning chamber. This is the primary recommended mode for most species.

• Mode 2 — DC Output Voltage Control: Automatically adjusts input to maintain stable DC output voltage at the target value. Ideal for applications requiring precise DC parameter control.

• Mode 3 — Grid Output Current Control: Maintains output current at a stable target. Best suited for species where current-based stunning produces optimal results.

Precision PWM Pulse Technology

The core of the LEKON stunner is its Pulse Width Modulation (PWM) system with fully adjustable parameters:

• Frequency Range: 0 — 1,000 Hz, allowing fine-tuned electrical pulse delivery matched to different fish species and sizes

• Adjustable Duty Cycle: Customize the on/off ratio of each pulse for optimal stunning effect

• Real-Time Feedback: Voltage and current sensors provide continuous monitoring, with automatic compensation for load variations as fish enter and exit the stunning chamber

• Species-Specific Presets: Configure and save parameter combinations for different species — switch between salmon, trout, sea bass, and other profiles instantly

Intelligent Touchscreen HMI Control

The operator interface features a full-color touchscreen HMI display providing:

• Real-time display of AC input voltage, DC output voltage, and output current

• System status indicator (Running / Stopped / Fault) for immediate operational awareness

• Language toggle — switch between English and Chinese with a single tap

• Manual test button for setup, calibration, and troubleshooting without fish

• Parameter settings screen for configuring modes, voltage/current targets, PWM frequency, and duty cycle

Built for Industrial Fish Processing Environments

• SUS304 Stainless Steel Construction — Corrosion-resistant, food-grade, designed for wet processing floors and daily washdown

• Integrated Conveyor System — Stainless steel mesh chain belt with VFD variable speed control, allowing precise dwell time adjustment

• Emergency Stop System — Red emergency stop button immediately cuts power and stops the conveyor for operator safety

• Waterproof Electrical Enclosure — Control cabinet rated for humid processing environments (-10°C to +60°C operating range)

• Automatic Operation — Once configured, the system runs unattended. Fish enter the stunning chamber, complete the circuit, and are stunned automatically. No dedicated operator required.

• Low Maintenance Design — Monthly conveyor inspection schedule, gearmotor oil check every 3 months, control cabinet kept clean and dry

Why Humane Stunning Matters

Modern seafood processors face increasing pressure from retailers, regulators, and consumers to demonstrate ethical slaughter practices. Electrical stunning provides immediate loss of consciousness — the fish does not experience the stress of traditional ice-slurry chilling or percussive methods. Benefits include:

• Improved meat quality — Reduced pre-slaughter stress means less lactic acid buildup, better texture, and extended shelf life

• Welfare compliance — Meets evolving European and international animal welfare standards for aquaculture slaughter

• Labor efficiency — Fully automatic operation reduces headcount compared to manual stunning methods

• Consistent results — Programmable parameters ensure every fish receives the same precise electrical dose

Applications

The LEKON Electric Fish Stunner is suitable for virtually all commercially farmed and wild-caught fish species:

• Salmonids: Atlantic salmon, rainbow trout, coho salmon

• Whitefish: Cod, haddock, pollock

• Warm-water species: Sea bass, sea bream, tilapia, pangasius (basa)

• Custom configurations available for specific species and production volumes