Superthaw™ Digital Semen Flask

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The Superthaw™ is an evolution in AI procedure and accurate semen thawing. It puts the latest technology within reach of every dairy farmer.

It is very important that bull semen is thawed consistently at the right temperature and for the correct time.

The recommendations are as follows:

  • Normal semen is 35-36°C (95°F) for 45 seconds
  • Sexed semen is 36-37°C (98°F) for 40 seconds

If this does not take place then a percentage of sperm will die long before they ever see a cow, this has even greater consequences for sexed semen and older straws.

The new Superthaw™ is designed and manufactured in theUK and based on a comprehensive list of ‘needs’ and ‘ desires’ from discussions with farmers, AI technicians and vets.


Award winning advanced semen thawing features:

  • Adjustable digital temperature 20-40°C (99% accuracy) which can be set at correct temperature for normal and sexed semen
  • Built in countdown timer with buzzer – one button operation
  • Gun warmer chamber – keep thawed straws and guns at a stable temperature
  • Large removable straw basket
  • Watertight lid with pressure relief valve
  • Fully insulated flask to help retain heat
  • Latest low energy use rated electronics
  • Supplied with 120-220vdc & 12vdc power supplies
  • CE, UL and cUL compliant

Why use Superthaw?

  • Accurate thawing times and temperatures observed for all types of semen
  • Robust design for use in the field and harsh environments
  • Better quality sperm ensures a higher % of living sperm, increasing herd fertility with fewer returns
  • Prepare several AI guns in batches and use the handy AI gun warmer chamber to save time and reduce stress on waiting cows
  • Can also be used in embryo transfer procedures
  • Good build quality from a UK manufacturer
  • Large waterproof LCD digital display
  • Thermoplastic case, stainless steel water bath and silicone heater
  • Heat retention and multiple power supplies allow easy transport around farm
  • 2 year warranty
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