The RS844 Roller Screed is a ride-on steerable roller screed powered by a 44-hp Kubota turbo diesel making it the most powerful roller screed on the market. The 8-in. diameter paving tube provides 25% more surface contact to the concrete than other roller screeds which in turn provides for a smoother concrete pavement. With the additional weight and the optional reversible spreading auger, rapid set concrete and low slump concrete can be screeded more effectively, reducing or eliminating costly grinding. The screed is available in working widths of 12 ft to 32 ft. Allen Engineering Corp. 870-236-7751. [WOC Booth O31542]