The 220M and 221M Diesel Multiple Units are, respectively, two– and three-section passenger trains which we have been manufacturing since 2010. They are designed to operate in suburban and long-distance passenger transit. These low-floor, open-coach vehicles come equipped with such features as the full interior monitoring system, air conditioning and advanced passenger information system.
The body of the vehicle comprises a self-supporting closed construction, based on two-axle bogies — two powered bogies and one Jacobs bogie. In the vehicles, modern bogies were mounted with dual suspension where secondary suspension are air springs, which reduces the noise level and enhances travelling comfort. The drive system consists of two integrated power modules comprising a diesel motor and hydraulic gearbox forming the so-called PowerPack. Depending on operational needs, these vehicles can be combined in multiple traction (of up to three vehicles), or, thanks to mounting of screw coupling, DMUs can operate together with a typical passenger car attached.