Developed for maintenance work on the undercarriages of rail vehicles, this seven-axis robot arm was specifically designed for use in confined, harsh environments. The motor of the robot is housed in a highly narrow waterproof shell. Smooth surfaces without screws and specifically selected materials guarantee trouble-free functioning in this complex environment. The modular design of the device offers advantages for both initial setup and maintenance. Cameras, detectors and similar accessories can be connected to the upper end of the arm.