For big vertical jobs, like 100 foot storage tanks and ship hulls, more and more contractors are moving up to the NLB SRT 10 Crawler. While personnel stay safely on the ground, it crawls up, down and sideways - directed from wireless controls, while rotating SPIN JET nozzles do all the work. The Crawler uses a vacuum system to grip the surface and to recover wastewater and debris, minimizing clean-up. A winch skid assembly with locking pulleys allows an operator to position the unit and also serves as a fall arrest system. The SRT 10 Crawler can clean over welds and plate laps as thick as 1/2". The cleaning path is 250mm wide.