The new truck-mounted concrete pump 37 R4 XXT was unveiled by Liebherr at the World of Concrete. Comprising a pump type THP 140 H, this equipment also features a Liebherr-patented XXT-narrow outrigger. The four-section, roll-fold distributor boom has a reach of 37m (121‘-5“) and is extremely torsional-resistant. This ensures reduced vibrations when manoeuvring the boom during onsite applications. Well-balanced weight distribution is achieved by channelling the concrete line extremely close to the boom on both left and right-hand sides. Pressure loss is reduced over the entire length of the distributor boom due to the generous 275 mm (10.8“) radius of the pipe bends. Moreover, the pipe bends are predominantly of the same type, minimising the need to stock diverse replacement parts. Numerous design-related features optimise servicing tasks by simplifying the replacement of wear parts.