© trainspo.comOMS ATM 4600
Built by OMS
Overview of the OMS ATM 4600
Discover the ATM 4600 tram, a classic Italian electric multiple unit.
Built by OMS between 1955 and 1960, this iconic tram served the Azienda Trasporti Milanesi with distinction.
With a top speed of 45 km/h and a seating capacity of 36 passengers, the ATM 4600 provided reliable urban transit.
Its 1445 mm gauge and Bo'2'Bo' wheel arrangement are characteristic of its era.
Measuring 19.58 meters in length, 2.4 meters in width, and 3.71 meters in height, this tram was designed for efficiency.
Operating on 550 V DC electric systems, the ATM 4600 played a vital role in Milan's public transportation network.
Explore the history and technical details of this charming locomotive.
OMS ATM 4600 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Built by | OMS · 1955–196013 units | |
| Top speed | 45 km/h28 mph | |
| Electric systems |
| |
| Track gauge | 1,445 mmStandard gauge4 ft 8⅞ in | |
| UIC axle arrangement | Bo'2'Bo' | |
| Capacity | 36 seats | |
| Length | 19.58 m64 ft 3 in | |
| Width | 2.4 m7 ft 10 in | |
| Height | 3.71 m12 ft 2 in |
Operators of the OMS ATM 4600
Railway companies that have operated the ATM 4600, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| Azienda Trasporti Milanesi | ATM 4600 | Italy |
OMS ATM 4600 photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.















