"It's this ongoing demonstration of excellence that gives us the confidence to back you on the world stage and offer you support wherever possible."
EastPack chief executive Hamish Simson said there had been huge developments at the Washer Rd site.
"Three years ago we were still in the grips of PSA and packed 25 million trays. This Washer Rd site was effectively mothballed with no graders and no packing taking place here at all."
Last season, EastPack packed 40 million trays.
"That growth in volume has allowed us to invest significantly in infrastructure and new technology, with EastPack spending over $40m this year following the $25m spend last year."
He described the new grader as a new chapter in leading-edge technology in packing efficiency for EastPack.
To handle the volume of fruit the grader utilises a dual-bin tip and infeed set-up and is effectively two graders joined together. The grader also utilises new Spectrim photo grading technology to improve efficiencies at its site and the accuracy of grading, with this season the first time the technology has been used on New Zealand kiwifruit.
The grader is also fitted with near infrared technology which looked inside the fruit and read the changes in wavelengths to test the brix and dry matter and ultimately the fruit's quality.
Earlier in the day Mr English was welcomed to Te Puke High School with a powhiri and mihi from kaumatua Tapua Te Amo and kuia Vervies Punohu McCausland before meeting some of the school's international students and student leaders and trying out the school's race car simulator.
International student Yolanda Xu, 14, from China said her high school back home was so large she had never even met the principal, never mind the country's leader.
"This is great and exciting," she said. Lyn Hartje, 15, from Germany said the visit had prompted a lot of discussion at her home stay, especially after former Prime Minister John Key's valedictory speech on Wednesday.