HSI Screen Plant. The CRH1111R Portable Closed Circuit Impactor/Screen Plant features the TI4143 impact crusher and a 5x16 2-deck inclined screen. With its large screen, wide conveyors, and low maintenance electric driven components, this is a highly productive, high value plant. Now available with optional 20 foot feeder. Essa Rolls Crushers have fitted feed hoppers, easily accessible aluminium sample draws, simple stop/start buttons, and motor protection. The Essa Rolls Crusher range includes Essa RC2000 Rolls Crusher compact and rapid standalone rolls crusher with 2 x 200 mm rolls. Common applications include coal and diamond mining.