Rajma engineering industries supplies a range of products to be used in the fish processing industry. The automatic shrimp grading & filth washing machine is designed for effective cleaning and grading of pud and tiny headless shrimps. Shrimp grading & filth washing machine is a simple, scientifically designed machine, based on water flow and gravity principle, made in food quality stainless steel material. Advantages of shrimp grading & filth washing machine are: antennae and hair get arrested; 95-98% filth and dirt are removed; uniform grading, damage-free and hygienic product; high production, less infrastructure, lesser time, very low production cost; and, 6 different grades can be taken at a time. The most important features of the shrimp grading & filth washing machine includes: easy and very accurate specimen gap adjustment by means of worm and worm gear attachment with each grading roll; automatic self-locking of grading rolls; positive drive by sprocket and chain for the rolls, hence no breakdown or slipping; special pb bushings on roll ends for smooth and silent working; all corners and edges rounded off for better and effective cleaning; and, designed for continuous duty. The required power is: 3.5 hp, 3-phase, 415 v and minimum quantity of water needed is 250 litres.