Introducing Gradall/LAG Equipment’s LAG-3400 refractory tear-out machine. Taking decades of experience and knowledge, Gradall/LAG Equipment has developed a machine that looks at safety first. From ground up, innovation and design are the foremost thoughts while keeping safety in mind. Using the latest technology, the machine was designed to work effortlessly tearing out refractory or cleaning out a vessel while allowing the operator to keep a safe distance.