The Plasser METRO 4x4 is a heavy-duty, high performance switch and production tamping machine specially designed for the stringent requirements of transit railway systems. It is standard equipped with fully automatic, computer controlled (AGGS) lifting, leveling and lining systems.

The Plasser METRO 4x4 utilizes design concepts and components that have been well proven world-wide. The machine is constructed for ease of operation and maintenance, and is backed by Plasser, the world leader in track maintenance technology.

Metro 4x4, is equipped with many features designed to enhance its efficiency and productivity, especially when working through switches. The four, four-tool traversing tamping heads are individually and proportionally controlled for smooth operation. Standard equipment includes a proportional leveling control system, pendulum-controlled elevation correction system, and the company's single-cord automatic lining system. A laser lining system and a choice of engines are among many available options for different requirements.