The SED Water Grader is a game-changer for oyster farmers and producers worldwide. Developed in partnership with local oyster farmers, the SED Water Grader gently grades and cleans seed and juvenile oysters – dramatically decreasing handling damage and reducing mortality rates to as low as 1.5%.
Gentle, fast and economical, the SED Water Grader can be operated by a single worker, grading and cleaning oysters into three sizes at an average of 100,000 per hour.
“The SED Water Grader is fantastic! It’s made a huge difference to our output. We see new growth within a week of grading and I can grade and re-bag 40,000 oysters in half a day by myself.” Jane Clout – Kooringal Oysters Qld
Did you know that the industry average mortality rate in Australia for the lifecycle of seed to sale size oysters is a whopping 45%? For the team at SED Graders, this was a problem we knew we could fix. Our SED Water Grader is specifically designed to lower the mortality rate when handling and grading seed and juvenile oysters – and the results for oyster farmers are nothing short of phenomenal.
In fact, our main hatchery here in Tasmania experienced an 18.5% drop in its mortality rate after implementing the SED Water Grader into their farming process. Previously recording a mortality rate of 20% across their 1.5 – 25mm seed and juvenile oysters, that rate has now dropped to 1.5%.
The SED Water Grader uses the way juvenile oysters behave underwater to gently grade, with far greater accuracy. This removes oyster stress caused by traditional barrel and shaker graders as well as the high cost and laborious work of hand grading.
The 2016 POMS (Pacific Oyster Mortality Syndrome) outbreak put the gentle touch of our SED Water Grader to the test. Our Tasmanian oyster farmers reported being able to save most of their remaining very stressed oyster crop using the SED Water Grader. The gentle action of the underwater grading successfully graded out dead oysters, allowing the remaining live oysters to be on-grown and sold.
The SED Water Grader protects your bottom line by increasing your potential oyster output and reducing labour costs. On average, this machine grades up to 100,000 20-30mm oysters per hour (double this for a twin-barrel machine). Rates are faster for smaller oysters and a second lane will further increase productivity.
Fully automatic, the SED Water Grader frees oyster farmers and workers from the laborious task of grading. A single operator is required to fill the hopper or seed table. Oysters are then automatically sorted underwater into three sizes. Finally, the SED Water Grader delivers the oysters to collection points via three small conveyors.
The SED Water Grader is easy to self-install and comes supplied with a comprehensive instruction and video manual.
SED Graders works alongside oyster farmers to constantly test and refine our machines. That’s why we’ve designed a range of production equipment to support the SED Water Grader so it performs the tasks you require. Using SED in-feed options and baggers, oysters are emptied into a bulk hopper, washed, measured, separated into grades.
The SED Water Grader integrates with the SED Vision Grader to provide a total automated oyster grading solution.
SED Graders integrate seamlessly with the innovative SEAPA oyster farming basket system used widely throughout Australia and internationally.
Manufactured from stainless steel, our graders are robust and built for harsh and remote oyster farming environments.
The SED Water Grader is innovative and designed for easy operation and minimal servicing. Small repairs are easily managed because SED Graders are technologically advanced but mechanically simple … but if you do encounter a problem, our SED Graders team provides after-sales support worldwide, including remote access TeamViewer support.
Are you ready to make every oyster count? Find out more about our productivity-boosting oyster graders and equipment. Contact the team at SED Graders today.
“We use SED Graders and it’s really turned my business around. We put great importance on handling oysters efficiently and speedily.” – Ewen McAsh
“I couldn’t imagine being an oyster farmer without an SED Grader machine. It is absolutely the best thing we have ever invested in.” – Hugh Wheeler
For bespoke oyster farmers, integrating innovations like the basket farming system and SED Grader technology allows them to focus on quality.
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