• Optimum quality and yield
  • The most effective, reliable stunning methods
  • Electrical or CAS stunning
  • Humane, well-balanced procedures
  • Suitable for all cultures and religions


Depending on the market, turkey processors can opt for waterbath stunning or Controlled Atmosphere Stunning (CAS). Both methods comply with animal welfare regulations applicable in different countries and meet virtually all customer demands in markets with specific cultural and religious requirements.

Electrical stunning

Marel's electrical water bath stunners for turkeys are extremely reliable and ensure an optimum result. The continuously variable AC voltage of the electrical stunner is designed to achieve optimum stunning efficiency while safeguarding product quality. It allows the unit to be fine-tuned to different throughputs and circumstances, always resulting in the best balance between stunning efficiency and meat quality.

Marel offers two types of electrical stunners: the HDII heavy duty Water Bath Stunner and the EU Water Bath Stunner with movable doors and recording of parameters, fully compliant with EU Regulation 1099/2009.

CAS stunning

Multiphase Controlled Atmosphere Stunning (CAS) favors perfect presentation of valuable turkey products such as fillets. CAS stunning is humane and causes virtually no damage to the live turkey. Hang-on operatives benefit too as they now shackle stunned birds, which no longer move.

Providing the same anesthetization environment to every turkey

Birds are stunned irreversibly in a gentle process. During the process, precise atmosphere control is essential due to welfare regulations. Windows allow birds to be observed as they are being stunned.

Turkeys are conveyed through the system at the proper speed to provide the same stunning environment to every single turkey. This first-in-first-out principle ensures a constant dwell time, regardless of weight or loading density during transport.

Product range

  • CAS-T Controlled Atmosphere Stunning
  • HDII Water Bath Stunner heavy-duty
  • EU Water Bath Stunner
  • KS-T Killer
  • Reliable, stable and effective performance 
  • A suitable solution for all types of poultry, all common weights and all capacity levels 
  • Controllable balance between stunning efficiency and meat quality 
  • Easy to clean and maintain 
  • Small footprint

Water Bath Stunning

  • Up to 30 % meat quality improvement possible 
  • Best balance between stunning efficiency and meat quality
  • EU execution: fully compliant with European Union regulations 
  • No pre-stun shocks 
  • Perfect, smooth sine wave available 
  • Stepless frequency range possible

Controlled Atmosphere Stunning

  • Ensures a top quality end product 
  • Easy removal of DOAs 
  • Causes virtually no damage to the bird
  • No broken bones and blood spots 
  • No yield loss through trimming
  • No handling of struggling, flapping turkeys
  • Different stunning menus for different breeds and weight of birds
  • The most humane stunning method, meeting all current legislation


Marel offers a range of service solutions to prevent failures, maximize performance or in case of unexpected breakdowns remote or onsite assistance.

Marel has offices in 30 countries across all regions, and a global network of highly skilled professionals that provide remote as well as onsite service support. We provide quality spare parts and customized service agreements for our customers to ensure optimal performance of Marel equipment.

Customer stories

Damate Boxmeer

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