Lab Seed Grader/Paddy Cleaner (Model No. STE-18) Specification: Sample Size : 1kg. ( In case of Wheat) Screen Area : 38 x 25.4 cm. Weight / size : 39kg / 80x54x75 cm. (approx.) Elec. Motor : ½ HP Single Phase Supplied with a set of 10 Screens and 2 Trays.