Haith showcases wash and grade innovations at Potato Expo 2023

Vegetable handling experts Haith showcased two washing and grading innovations at last month’s Potato Expo in the USA.

The Haith Group has been designing and supplying innovative solutions for farmers, packers and food manufacturers for over 75 years. It exhibited its mobile water treatment system and PRO-Sort mobile optical grader at Potato Expo on 4-5 January at Aurora, Colorado.

The mobile water treatment system can be used on-farm or production factories. Haith has installed numerous systems in the UK and Europe – but complicated planning processes and transportation costs have often deterred American companies.

Haith’s new modular system overcomes all of the issues facing potential overseas customers. The plant splits into multiple units for easy transportation by low loaders without special permits, and it can be assembled in less than two days using forklifts or a crane.

Organic matter

Once connected to a wash system, the dirty water flows into the Haith Mobile Water Treatment System, with a screen separating larger organic matter from the water. The effluent is then pumped to a lamella settler which separates the soil from the water.

Sludge drops to the bottom of the tank, from where it is pumped to a dewatering filterpress on the opposite side of the unit. The resulting soil cake can then be conveyed into a skip or soil trailer. Treated water is fed into a storage tank for returning to the process or discharge to sewer.

The company’s joint project with Grimme UK – the PRO-Sort, was the second innovation to feature on Haith’s booth.

Optical sorter

The mobile optical sorter automates the removal of stone, clod and foreign debris from potatoes and helps growers cope with labour shortages. At the heart of the machine is a Tomra 3A optical sorter which is capable of handling up to 100 tonnes per hour with high levels of accuracy.

The Tomra 3A employs Near Infra-Red multi-spectral sensors for an unobstructed assessment of every object ‘in flight’, seamlessly identifying between potatoes and foreign material. As well as debris, the 3A’s colour sensors can also detect green potatoes.

This means poor potatoes and the debris can be removed at the end of the conveyor belt by intelligent finger ejectors.As the PRO-Sort is a modular unit, it can be used in the field or on a farm and easily integrated into a new or existing grading line.

In addition to the mobile systems, Haith will update people on developments made to its Pro-Line modular food handling solution. The Pro-Line combines all of Haith’s class-leading machines in an incredibly effective way. Pro-Line installations in the UK have delivered the same throughput levels as lines featuring twice as many older machines.

“We are very excited about Potato Expo 2023 and are really looking forward to introducing our growing range of mobile washing, grading and water treatment systems to the United States,” says Rob Highfield, Sales Manager, who represented Haith in Colorado.

“When we exhibited at Interpom in Europe at the end of 2022, the solutions were incredibly well received. With US growers and food producers facing similar issues to those in Europe, we expect a similar reception at Potato Expo 2023.”

Established in 1947, Haith offers UK growers a range of vegetable handling solutions to fresh produce suppliers. Over the last decade, the company has replicated this success across the Atlantic, developing and installing efficient solutions for potato growers in North America.