Potato Screen Grader, Sorter, Sizer

Haith have been building screen graders since the 1960’s and over the decades have become renowned for them. This is due to the continuous development into what is now a robust, low maintenance machine.

Round or oval produce, such as potatoes and onions, are transferred onto a traveling grading screen with a set size aperture. As the screen is conveyed forward, two full-width agitator shafts disturb the crop causing any undersize to drop on to a conveyor below and the oversize to progress over the end. The screen and agitator speeds are variably controlled individually to suit the various crop conditions.

The machines can operate individually or as part of a bespoke system with multiple screen configurations.

Each individual roller can be removed without taking the screen off, this makes the machine very easy to maintain and keeps down time to a minimum.

Widths from 900m to 2400mm

Customisable screen grade sizes

Simple maintenance

Vegetable Screen Grader

Product Features

Standard features

Heavy-duty chassis

Variable speed shaft mounted drives

Crop unplugging roller

Dual driven rollers give optimum screen drive

Integral safety clutch

Star transfer roller

Twin agitators as standard

Optional features

Single or triple agitators

Screen changer to store additional screen

Anti-block sensor to avoid web damage

Stainless or mild steel construction

Our story began when Geoff Haith, at just 18 years old, started carrying out repairs for local farmers. Through this work, he recognised a need for more efficient, mechanised solutions for washing and grading root vegetables. Combining his engineering expertise with a strong farming background, Geoff went on to design and manufacture innovative machinery for handling carrots, potatoes, and beetroot.

Until recently, the business was led by Geoff’s five sons and daughter, supported by a talented and forward-thinking management team dedicated to ensuring the company’s continued success. Today, Haith employs over 120 people at our UK factory and works with a network of agents worldwide, promoting the Haith brand globally and delivering high-quality installations and satisfied customers across the world.

Over the years, Haith has continued to grow in both size and capability, relocating three times to accommodate expanding operations. This growth has culminated in our current ultra-modern, wholly owned facility in South Yorkshire, featuring approximately 6,000 m² of production space on a six-acre site. The factory is equipped with the latest CNC laser, waterjet, and bending technology, enabling us to maintain the highest standards of precision and quality.

Haith has received numerous awards for machine design and innovation. We are especially proud to have been honoured twice with the UK’s highest business accolade, The Queen’s Award for Enterprise, both in the Innovation category. As the only company in our field to hold this prestigious award, our commitment to continuous innovation and development—helping to keep the UK vegetable industry at the forefront of technology—has been clearly recognised.