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Ace Aquatec Humane Stunner Universal (HSU)

Award-winning in-water electrical stunner that renders fish unconscious immediately before slaughter. Standard build handles 20 tonnes per hour in fresh or salt water, for processing plants, boats, rafts and containers.

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Ace Aquatec Humane Stunner Universal (HSU)

Product Information

Key Features

  • In-water electrical stunning immediately before slaughter — fish lose consciousness as they enter the stun water, with no crowding or manual handling at the kill point
  • Standard build handles 20 tonnes per hour; higher capacities available as a bespoke build
  • Works in fresh water or salt water, so the same unit suits marine and land-based harvest streams
  • Install in a processing factory, on a boat or raft for dead-haul harvesting, or inside a container
  • Stun tube length is matched to your throughput and can be straight or bent, floor mounted or wall mounted to fit the space
  • High carcass quality — long pre-rigor times and no internal haemorrhaging, from the shape of the stun field and the smooth flow of fish through the tube
  • Automated touch screen control with configurable settings, adjustable pump speeds and durations, data logging, and secure remote adjustment and monitoring
  • Choosing your model: size the unit on harvest throughput in tonnes of fish per hour — the standard build is rated at 20 t/hr, with fish passing through the stunner in about 20 seconds. Tell us your peak harvest rate, water type (fresh or salt) and how the fish arrive, and we will match the stun tube length and layout.

Specifications

SpecificationDetail
Standard build capacity20 tonnes of fish per hour
Higher throughputAvailable as a bespoke build — specify your peak harvest rate
Time in the stunnerAbout 20 seconds, set by a dedicated water pump
Water typeFresh water or salt water
Stun tubeLength matched to your throughput; straight or bent
MountingFloor mounted or wall mounted
InstallationLand-based processing plants, boats, rafts, containers
Fish deliveryPumped from well boats, pens or tanks, through a short tubular de-waterer into the stun water
Control systemAutomated, touch screen, configurable settings, adjustable pump speeds and durations
DataOn-board data logging with secure remote adjustment and monitoring
Carcass qualityLong pre-rigor times, no internal haemorrhaging
Model codes, dimensions and power drawNot published by supplier — confirmed at quotation

Frequently Asked Questions

How does in-water stunning actually work?
Fish slide straight from a short de-waterer into the stunner water, where an electric field renders them unconscious immediately, before they are moved on to bleeding.
What throughput does the standard unit handle?
The standard build is rated at 20 tonnes of fish per hour, and higher capacities are available as a bespoke build.
How long are the fish in the stunner?
About 20 seconds — a dedicated water pump controls the flow through the stun tube so transit time stays consistent.
Can it be used in seawater?
Yes — the stunner is built for either fresh water or salt water, so it suits both marine harvest and land-based processing.
Where can it be installed?
In a land-based processing plant, on a boat or raft for dead-haul harvesting, or inside a container, with the stun tube straight or bent and either floor or wall mounted.
Does stunning affect carcass quality?
No — the stun field shape and the smooth flow of fish through the tube give long pre-rigor times without internal haemorrhaging.
How do I get a price?
Request a quote with your peak harvest rate in tonnes per hour, water type, how the fish will be delivered and the space available, and we will come back with the right build and lead time.

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