Putzmeister 56Z-Meter concrete boom pump allows placement in areas previously unreachable due to weight restrictions, the company says. The truck-mounted pump weighs less than 100,000 pounds. One-sided support (OSS) outrigger system provides a small footprint, with 18 feet 8 inches front and 27 feet 3 inches rear. The boom reaches 180 feet 9 inches vertical, 163 feet 9 inches horizontal.