ATM Class 4600 and 4700

ATM Class 4600 and 4700
ATM Class 4700
Car no. 4733 in 1969, in the original livery and using a trolley pole
ManufacturerStanga, Breda
Constructed1955–1960
Number built13 (Class 4600)
20 (Class 4700)
Fleet numbers4601–4613
4714–4733
Capacity36 (Seated)
139 (Standing)
Specifications
Train length19,840 mm (65 ft 1 in)
Low-floorno
Articulated sections2
Wheelbase1,800 mm (71 in)
Maximum speed50 km/h
Weight26.5 t (58,000 lb)
Traction motorsTIBB GLM 0300
Power output220.8 kW (296.1 hp)
Power supply
Current collectionPantograph
Track gauge1,445 mm (4 ft 8+78 in)

The ATM Class 4600 and 4700 are a series of articulated trams used by the ATM on the Milan urban tramway network.

They were projected in the 1950s as an articulated version of the series 5300; originally a series of 15 cars (to be numbered from 4601 to 4615) was foreseen, but the two last units were delivered in an experimental "all electric| version and, because of that, were numbered in the 4700 series. Some years later a second series of "all-electric" cars was built, numbered from 4716 to 4733, and bringing the total number of 4700-type cars to 20 vehicles.[1]

Originally, the cars were painted in a two-tone-green livery, later repainted in the orange livery, and since 2010 in a white-and-yellow livery.

Beginning from early 2017, the 4700 series were gradually revamped, with flooring, sections of the chassis and interior furnishing being replaced. Air conditioning was also implemented.[2]

On the 25th of February 2025, after years of slow retirement due to the ageing of the fleet, the last 4600 was removed from service.[3] The 4700 series persist and are still in service.

Bibliography

  • Giovanni Cornolò, Giuseppe Severi: Tram e tramvie a Milano 1840-1987., Azienda Trasporti Municipali, Milan 1987.

References

  1. ^ "Motrici articolate à 2 casse tipo 4700". Passione Trasporti (in Italian). 2021-01-25. Retrieved 2025-07-02.
  2. ^ Alberto. "Una nuova vita per i tram 4700: primi giorni di servizio della vettura 4731". MilanoToday (in Italian). Retrieved 2025-07-02.
  3. ^ Napolitano, Federico (2025-02-24). "Addio alle Motrici Serie 4600: Si Chiude un capitolo di storia del Trasporto Pubblico Milanese". Passione Trasporti (in Italian). Retrieved 2025-07-02.

Media related to ATM 4600 and 4700 at Wikimedia Commons