DT Dijkstra Excellent grading & cleaning 'Excellent grading & cleaning' is the point of departure for every DT Dijkstra machine or installation. The grading machines and cleaning installations are suitable for the processing of potatoes, onions, carrots, beetroot, flower bulbs, Brussels sprouts, etc. Customised and innovative Every DT Dijkstra product is based on almost 100 years of experience, the company’s objective being to provide every customer with customised, innovative solutions. DT Dijkstra’s grading and cleaning installations for tuberous and bulbous crops are characterised by: ◾high capacity ◾product friendliness ◾accuracy ◾user friendliness ◾long life ◾low cost price per ton of product